From cee0c77153cc9f8e682a20dde68af7e12e264259 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Mon, 13 Aug 2018 21:35:05 +0700
Subject: [PATCH 001/213] Code formatting
---
mythril/support/signatures.py | 2 --
1 file changed, 2 deletions(-)
diff --git a/mythril/support/signatures.py b/mythril/support/signatures.py
index 515bba9d..a2b9d87b 100644
--- a/mythril/support/signatures.py
+++ b/mythril/support/signatures.py
@@ -5,14 +5,12 @@
import os
import json
import time
-import pathlib
import logging
from subprocess import Popen, PIPE
from mythril.exceptions import CompilerError
-
# todo: tintinweb - make this a normal requirement? (deps: eth-abi and requests, both already required by mythril)
try:
# load if available but do not fail
From 7f9acbce4c0f950f522d253d6cc3f2dc7da05921 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Fri, 21 Sep 2018 18:48:53 +0700
Subject: [PATCH 002/213] Update wording 'tx order independence' ->
'dependence'
---
...on_order_independence.py => transaction_order_dependence.py} | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
rename mythril/analysis/modules/{transaction_order_independence.py => transaction_order_dependence.py} (97%)
diff --git a/mythril/analysis/modules/transaction_order_independence.py b/mythril/analysis/modules/transaction_order_dependence.py
similarity index 97%
rename from mythril/analysis/modules/transaction_order_independence.py
rename to mythril/analysis/modules/transaction_order_dependence.py
index 629d21a3..a522b89c 100644
--- a/mythril/analysis/modules/transaction_order_independence.py
+++ b/mythril/analysis/modules/transaction_order_dependence.py
@@ -34,7 +34,7 @@ def execute(statespace):
"Warning")
issue.description = \
- "A possible transaction order independence vulnerability exists in function {}. The value or " \
+ "A possible transaction order dependence vulnerability exists in function {}. The value or " \
"direction of the call statement is determined from a tainted storage location"\
.format(node.function_name)
issues.append(issue)
From 9b6325b44dd9679cc44fac79e18498bead624d8d Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Wed, 26 Sep 2018 10:46:52 +0200
Subject: [PATCH 003/213] Update test files
---
tests/testdata/outputs_expected/calls.sol.o.json | 2 +-
tests/testdata/outputs_expected/calls.sol.o.markdown | 2 +-
tests/testdata/outputs_expected/calls.sol.o.text | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/tests/testdata/outputs_expected/calls.sol.o.json b/tests/testdata/outputs_expected/calls.sol.o.json
index 5b7e39a9..c8723c44 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.json
+++ b/tests/testdata/outputs_expected/calls.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "A possible transaction order independence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/calls.sol.o.markdown b/tests/testdata/outputs_expected/calls.sol.o.markdown
index b5f5990e..fb9e28ff 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.markdown
+++ b/tests/testdata/outputs_expected/calls.sol.o.markdown
@@ -42,7 +42,7 @@ This contract executes a message call to an address found at storage slot 1. Thi
### Description
-A possible transaction order independence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location
+A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location
## Unchecked CALL return value
diff --git a/tests/testdata/outputs_expected/calls.sol.o.text b/tests/testdata/outputs_expected/calls.sol.o.text
index f126ddb5..c0ce9b71 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.text
+++ b/tests/testdata/outputs_expected/calls.sol.o.text
@@ -27,7 +27,7 @@ Type: Warning
Contract: Unknown
Function name: _function_0xd24b08cc
PC address: 779
-A possible transaction order independence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location
+A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location
--------------------
==== Unchecked CALL return value ====
From 296da3a54a762cd1d394979ec5be8a20fa834ed2 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Fri, 28 Sep 2018 18:31:43 +0530
Subject: [PATCH 004/213] Add swc id to mythril report
---
mythril/analysis/modules/delegatecall.py | 9 +++--
.../modules/dependence_on_predictable_vars.py | 13 ++++---
mythril/analysis/modules/deprecated_ops.py | 13 ++++---
mythril/analysis/modules/ether_send.py | 6 ++-
mythril/analysis/modules/exceptions.py | 15 ++++++--
mythril/analysis/modules/external_calls.py | 37 ++++++++++++-------
mythril/analysis/modules/integer.py | 9 +++--
mythril/analysis/modules/multiple_sends.py | 6 +--
mythril/analysis/modules/suicide.py | 5 ++-
.../modules/transaction_order_dependence.py | 6 +--
mythril/analysis/modules/unchecked_retval.py | 20 ++++++----
mythril/analysis/report.py | 8 +++-
mythril/analysis/swc_data.py | 23 ++++++++++++
.../templates/report_as_markdown.jinja2 | 2 +-
.../analysis/templates/report_as_text.jinja2 | 1 +
.../outputs_expected/calls.sol.o.json | 2 +-
.../outputs_expected/calls.sol.o.markdown | 20 +++++-----
.../outputs_expected/calls.sol.o.text | 10 +++++
.../outputs_expected/environments.sol.o.json | 2 +-
.../environments.sol.o.markdown | 6 +--
.../outputs_expected/environments.sol.o.text | 3 ++
.../outputs_expected/ether_send.sol.o.json | 2 +-
.../ether_send.sol.o.markdown | 4 +-
.../outputs_expected/ether_send.sol.o.text | 2 +
.../outputs_expected/exceptions.sol.o.json | 2 +-
.../exceptions.sol.o.markdown | 8 ++--
.../outputs_expected/exceptions.sol.o.text | 4 ++
.../kinds_of_calls.sol.o.json | 2 +-
.../kinds_of_calls.sol.o.markdown | 8 ++--
.../kinds_of_calls.sol.o.text | 4 ++
.../multi_contracts.sol.o.json | 2 +-
.../multi_contracts.sol.o.markdown | 2 +-
.../multi_contracts.sol.o.text | 1 +
.../outputs_expected/origin.sol.o.json | 2 +-
.../outputs_expected/origin.sol.o.markdown | 4 +-
.../outputs_expected/origin.sol.o.text | 3 +-
.../outputs_expected/overflow.sol.o.json | 2 +-
.../outputs_expected/overflow.sol.o.markdown | 6 +--
.../outputs_expected/overflow.sol.o.text | 3 ++
.../outputs_expected/returnvalue.sol.o.json | 2 +-
.../returnvalue.sol.o.markdown | 6 +--
.../outputs_expected/returnvalue.sol.o.text | 3 ++
.../outputs_expected/suicide.sol.o.json | 2 +-
.../outputs_expected/suicide.sol.o.markdown | 2 +-
.../outputs_expected/suicide.sol.o.text | 1 +
.../outputs_expected/underflow.sol.o.json | 2 +-
.../outputs_expected/underflow.sol.o.markdown | 6 +--
.../outputs_expected/underflow.sol.o.text | 3 ++
48 files changed, 203 insertions(+), 101 deletions(-)
create mode 100644 mythril/analysis/swc_data.py
diff --git a/mythril/analysis/modules/delegatecall.py b/mythril/analysis/modules/delegatecall.py
index fddd95ee..d676f8f2 100644
--- a/mythril/analysis/modules/delegatecall.py
+++ b/mythril/analysis/modules/delegatecall.py
@@ -1,4 +1,5 @@
import re
+from mythril.analysis.swc_data import DELEGATECALL_TO_UNTRUSTED_CONTRACT
from mythril.analysis.ops import get_variable, VarType
from mythril.analysis.report import Issue
import logging
@@ -43,8 +44,9 @@ def _concrete_call(call, state, address, meminstart):
if not re.search(r'calldata.*_0', str(state.mstate.memory[meminstart.val])):
return []
- issue = Issue(call.node.contract_name, call.node.function_name, address,
- "Call data forwarded with delegatecall()", "Informational")
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
+ swc_id=DELEGATECALL_TO_UNTRUSTED_CONTRACT, title="Call data forwarded with delegatecall()",
+ _type="Informational")
issue.description = \
"This contract forwards its call data via DELEGATECALL in its fallback function. " \
@@ -58,7 +60,8 @@ def _concrete_call(call, state, address, meminstart):
def _symbolic_call(call, state, address, statespace):
- issue = Issue(call.node.contract_name, call.node.function_name, address, call.type + " to a user-supplied address")
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
+ swc_id=DELEGATECALL_TO_UNTRUSTED_CONTRACT, title=call.type + " to a user-supplied address")
if "calldata" in str(call.to):
issue.description = \
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index 5d86939f..6395c0e3 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -3,6 +3,7 @@ from z3 import *
from mythril.analysis.ops import VarType
from mythril.analysis import solver
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import *
from mythril.exceptions import UnsatError
import logging
@@ -27,15 +28,14 @@ def execute(statespace):
for call in statespace.calls:
- if ("callvalue" in str(call.value)):
+ if "callvalue" in str(call.value):
logging.debug("[DEPENDENCE_ON_PREDICTABLE_VARS] Skipping refund function")
continue
# We're only interested in calls that send Ether
- if call.value.type == VarType.CONCRETE:
- if call.value.val == 0:
- continue
+ if call.value.type == VarType.CONCRETE and call.value.val == 0:
+ continue
address = call.state.get_current_instruction()['address']
@@ -56,8 +56,9 @@ def execute(statespace):
for item in found:
description += "- block.{}\n".format(item)
if solve(call):
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Dependence on predictable environment variable", "Warning",
- description)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
+ swc_id=SHADOWING_STATE_VARIABLES, title="Dependence on predictable environment variable",
+ _type="Warning", description=description)
issues.append(issue)
# Second check: blockhash
diff --git a/mythril/analysis/modules/deprecated_ops.py b/mythril/analysis/modules/deprecated_ops.py
index dc0c2de1..84f39b6e 100644
--- a/mythril/analysis/modules/deprecated_ops.py
+++ b/mythril/analysis/modules/deprecated_ops.py
@@ -1,4 +1,5 @@
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import TX_ORIGIN_USAGE
import logging
@@ -22,12 +23,14 @@ def execute(statespace):
instruction = state.get_current_instruction()
- if(instruction['opcode'] == "ORIGIN"):
-
- issue = Issue(node.contract_name, node.function_name, instruction['address'], "Use of tx.origin", "Warning",
- "Function " + node.function_name + " retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin"
- )
+ if instruction['opcode'] == "ORIGIN":
+ description = "Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. " \
+ "Use msg.sender instead.\nSee also: " \
+ "https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin".format(node.function_name)
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ title="Use of tx.origin", _type="Warning", swc_id=TX_ORIGIN_USAGE,
+ description=description)
issues.append(issue)
return issues
diff --git a/mythril/analysis/modules/ether_send.py b/mythril/analysis/modules/ether_send.py
index b7a4dce0..bfb0d057 100644
--- a/mythril/analysis/modules/ether_send.py
+++ b/mythril/analysis/modules/ether_send.py
@@ -2,6 +2,7 @@ from z3 import *
from mythril.analysis.ops import *
from mythril.analysis import solver
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import UNPROTECTED_ETHER_WITHDRAWAL
from mythril.exceptions import UnsatError
import re
import logging
@@ -115,8 +116,9 @@ def execute(statespace):
debug = "SOLVER OUTPUT:\n" + solver.pretty_print_model(model)
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Ether send", "Warning",
- description, debug)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
+ title="Ether send", _type="Warning", swc_id=UNPROTECTED_ETHER_WITHDRAWAL,
+ description=description, debug=debug)
issues.append(issue)
except UnsatError:
diff --git a/mythril/analysis/modules/exceptions.py b/mythril/analysis/modules/exceptions.py
index fc287948..ac0723e0 100644
--- a/mythril/analysis/modules/exceptions.py
+++ b/mythril/analysis/modules/exceptions.py
@@ -1,4 +1,5 @@
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import ASSERT_VIOLATION
from mythril.exceptions import UnsatError
from mythril.analysis import solver
import logging
@@ -24,19 +25,25 @@ def execute(statespace):
for state in node.states:
instruction = state.get_current_instruction()
- if(instruction['opcode'] == "ASSERT_FAIL"):
+ if instruction['opcode'] == "ASSERT_FAIL":
try:
model = solver.get_model(node.constraints)
address = state.get_current_instruction()['address']
- description = "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. "
- description += "This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. "
+ description = "A reachable exception (opcode 0xfe) has been detected. " \
+ "This can be caused by type errors, division by zero, " \
+ "out-of-bounds array access, or assert violations. "
+ description += "This is acceptable in most situations. " \
+ "Note however that `assert()` should only be used to check invariants. " \
+ "Use `require()` for regular input checking. "
debug = "The exception is triggered under the following conditions:\n\n"
debug += solver.pretty_print_model(model)
- issues.append(Issue(node.contract_name, node.function_name, address, "Exception state", "Informational", description, debug))
+ issues.append(Issue(contract=node.contract_name, function=node.function_name, address=address,
+ swc_id=ASSERT_VIOLATION, title="Exception state", _type="Informational",
+ description=description, debug=debug))
except UnsatError:
logging.debug("[EXCEPTIONS] no model found")
diff --git a/mythril/analysis/modules/external_calls.py b/mythril/analysis/modules/external_calls.py
index 884e9c7c..9b7d4038 100644
--- a/mythril/analysis/modules/external_calls.py
+++ b/mythril/analysis/modules/external_calls.py
@@ -2,6 +2,7 @@ from z3 import *
from mythril.analysis.ops import *
from mythril.analysis.report import Issue
from mythril.analysis import solver
+from mythril.analysis.swc_data import REENTRANCY
import re
import logging
@@ -19,7 +20,7 @@ def search_children(statespace, node, start_index=0, depth=0, results=[]):
logging.debug("SEARCHING NODE %d", node.uid)
- if(depth < MAX_SEARCH_DEPTH):
+ if depth < MAX_SEARCH_DEPTH:
n_states = len(node.states)
@@ -35,7 +36,7 @@ def search_children(statespace, node, start_index=0, depth=0, results=[]):
if edge.node_from == node.uid:
children.append(statespace.nodes[edge.node_to])
- if (len(children)):
+ if len(children):
for node in children:
return search_children(statespace, node, depth=depth + 1, results=results)
@@ -54,20 +55,20 @@ def execute(statespace):
state = call.state
address = state.get_current_instruction()['address']
- if (call.type == "CALL"):
+ if call.type == "CALL":
logging.info("[EXTERNAL_CALLS] Call to: %s, value = %s, gas = %s" % (str(call.to), str(call.value), str(call.gas)))
- if (call.to.type == VarType.SYMBOLIC and (call.gas.type == VarType.CONCRETE and call.gas.val > 2300) or (call.gas.type == VarType.SYMBOLIC and "2300" not in str(call.gas))):
+ if call.to.type == VarType.SYMBOLIC and (call.gas.type == VarType.CONCRETE and call.gas.val > 2300) or (call.gas.type == VarType.SYMBOLIC and "2300" not in str(call.gas)):
description = "This contract executes a message call to "
target = str(call.to)
user_supplied = False
- if ("calldata" in target or "caller" in target):
+ if "calldata" in target or "caller" in target:
- if ("calldata" in target):
+ if "calldata" in target:
description += "an address provided as a function argument. "
else:
description += "the address of the transaction sender. "
@@ -76,7 +77,7 @@ def execute(statespace):
else:
m = re.search(r'storage_([a-z0-9_&^]+)', str(call.to))
- if (m):
+ if m:
idx = m.group(1)
func = statespace.find_storage_write(state.environment.active_account.address, idx)
@@ -90,15 +91,20 @@ def execute(statespace):
if user_supplied:
- description += "Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state."
+ description += "Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. " \
+ "Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state."
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Message call to external contract", "Warning", description)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
+ address=address, title="Message call to external contract", _type="Warning",
+ description=description, swc_id=REENTRANCY)
else:
description += "to another contract. Make sure that the called contract is trusted and does not execute user-supplied code."
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Message call to external contract", "Informational", description)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
+ title="Message call to external contract", _type="Informational",
+ description=description, swc_id=REENTRANCY)
issues.append(issue)
@@ -113,10 +119,15 @@ def execute(statespace):
logging.debug("[EXTERNAL_CALLS] Detected state changes at addresses: " + str(state_change_addresses))
- if (len(state_change_addresses)):
+ if len(state_change_addresses):
for address in state_change_addresses:
- description = "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities."
- issue = Issue(call.node.contract_name, call.node.function_name, address, "State change after external call", "Warning", description)
+ description = "The contract account state is changed after an external call. " \
+ "Consider that the called contract could re-enter the function before this " \
+ "state change takes place. This can lead to business logic vulnerabilities."
+
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
+ address=address, title="State change after external call", _type="Warning",
+ description=description, swc_id=REENTRANCY)
issues.append(issue)
return issues
diff --git a/mythril/analysis/modules/integer.py b/mythril/analysis/modules/integer.py
index f89c0781..d83fd7a3 100644
--- a/mythril/analysis/modules/integer.py
+++ b/mythril/analysis/modules/integer.py
@@ -2,6 +2,7 @@ from z3 import *
from mythril.analysis import solver
from mythril.analysis.ops import *
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import INTEGER_OVERFLOW_AND_UNDERFLOW
from mythril.exceptions import UnsatError
from mythril.laser.ethereum.taint_analysis import TaintRunner
import re
@@ -16,6 +17,7 @@ For every SUB instruction, check if there's a possible state where op1 > op0.
For every ADD, MUL instruction, check if there's a possible state where op1 + op0 > 2^32 - 1
'''
+
def execute(statespace):
"""
Executes analysis module for integer underflow and integer overflow
@@ -85,7 +87,8 @@ def _check_integer_overflow(statespace, state, node):
return issues
# Build issue
- issue = Issue(node.contract_name, node.function_name, instruction['address'], "Integer Overflow", "Warning")
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ swc_id=INTEGER_OVERFLOW_AND_UNDERFLOW, title="Integer Overflow", _type="Warning")
issue.description = "A possible integer overflow exists in the function `{}`.\n" \
"The addition or multiplication may result in a value higher than the maximum representable integer.".format(
@@ -173,8 +176,8 @@ def _check_integer_underflow(statespace, state, node):
if len(interesting_usages) == 0:
return issues
- issue = Issue(node.contract_name, node.function_name, instruction['address'], "Integer Underflow",
- "Warning")
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ swc_id=INTEGER_OVERFLOW_AND_UNDERFLOW, title="Integer Underflow", _type="Warning")
issue.description = "A possible integer underflow exists in the function `" + node.function_name + "`.\n" \
"The subtraction may result in a value < 0."
diff --git a/mythril/analysis/modules/multiple_sends.py b/mythril/analysis/modules/multiple_sends.py
index a7c065cc..0df17575 100644
--- a/mythril/analysis/modules/multiple_sends.py
+++ b/mythril/analysis/modules/multiple_sends.py
@@ -1,4 +1,5 @@
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import *
from mythril.laser.ethereum.cfg import JumpType
"""
MODULE DESCRIPTION:
@@ -20,9 +21,8 @@ def execute(statespace):
if len(findings) > 0:
node = call.node
instruction = call.state.get_current_instruction()
- issue = Issue(node.contract_name, node.function_name, instruction['address'],
- "Multiple Calls",
- "Informational")
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ swc_id=MULTIPLE_SENDS, title="Multiple Calls", _type="Informational")
issue.description = \
"Multiple sends exist in one transaction, try to isolate each external call into its own transaction." \
diff --git a/mythril/analysis/modules/suicide.py b/mythril/analysis/modules/suicide.py
index 53637ffd..e2185fe5 100644
--- a/mythril/analysis/modules/suicide.py
+++ b/mythril/analysis/modules/suicide.py
@@ -1,6 +1,7 @@
from mythril.analysis import solver
from mythril.analysis.ops import *
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import UNPROTECTED_SELFDESTRUCT
from mythril.exceptions import UnsatError
import logging
@@ -63,7 +64,9 @@ def _analyze_state(state, node):
debug = "SOLVER OUTPUT:\n" + solver.pretty_print_model(model)
- issue = Issue(node.contract_name, node.function_name, instruction['address'], "Unchecked SUICIDE", "Warning", description, debug)
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ swc_id=UNPROTECTED_SELFDESTRUCT, title="Unchecked SUICIDE", _type="Warning",
+ description=description, debug=debug)
issues.append(issue)
except UnsatError:
logging.debug("[UNCHECKED_SUICIDE] no model found")
diff --git a/mythril/analysis/modules/transaction_order_dependence.py b/mythril/analysis/modules/transaction_order_dependence.py
index a522b89c..f5b45f5d 100644
--- a/mythril/analysis/modules/transaction_order_dependence.py
+++ b/mythril/analysis/modules/transaction_order_dependence.py
@@ -4,6 +4,7 @@ import re
from mythril.analysis import solver
from mythril.analysis.ops import *
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import TX_ORDER_DEPENDENCE
from mythril.exceptions import UnsatError
'''
@@ -29,9 +30,8 @@ def execute(statespace):
if len(changing_sstores) > 0:
node = call.node
instruction = call.state.get_current_instruction()
- issue = Issue(node.contract_name, node.function_name, instruction['address'],
- "Transaction order dependence",
- "Warning")
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=instruction['address'],
+ title="Transaction order dependence", swc_id=TX_ORDER_DEPENDENCE, _type="Warning")
issue.description = \
"A possible transaction order dependence vulnerability exists in function {}. The value or " \
diff --git a/mythril/analysis/modules/unchecked_retval.py b/mythril/analysis/modules/unchecked_retval.py
index 0c6f6b09..5ee2b327 100644
--- a/mythril/analysis/modules/unchecked_retval.py
+++ b/mythril/analysis/modules/unchecked_retval.py
@@ -1,4 +1,6 @@
from mythril.analysis.report import Issue
+from mythril.analysis.swc_data import UNCHECKED_RET_VAL
+
from mythril.laser.ethereum.svm import NodeFlags
import logging
import re
@@ -41,17 +43,19 @@ def execute(statespace):
instr = state.get_current_instruction()
- if (instr['opcode'] == 'ISZERO' and re.search(r'retval', str(state.mstate.stack[-1]))):
+ if instr['opcode'] == 'ISZERO' and re.search(r'retval', str(state.mstate.stack[-1])):
retval_checked = True
break
if not retval_checked:
address = state.get_current_instruction()['address']
- issue = Issue(node.contract_name, node.function_name, address, "Unchecked CALL return value")
+ issue = Issue(contract=node.contract_name, function=node.function_name, address=address,
+ title="Unchecked CALL return value", swc_id=UNCHECKED_RET_VAL)
issue.description = \
- "The return value of an external call is not checked. Note that execution continue even if the called contract throws."
+ "The return value of an external call is not checked. " \
+ "Note that execution continue even if the called contract throws."
issues.append(issue)
@@ -64,7 +68,7 @@ def execute(statespace):
state = node.states[idx]
instr = state.get_current_instruction()
- if (instr['opcode'] == 'CALL'):
+ if instr['opcode'] == 'CALL':
retval_checked = False
@@ -74,7 +78,7 @@ def execute(statespace):
_state = node.states[_idx]
_instr = _state.get_current_instruction()
- if (_instr['opcode'] == 'ISZERO' and re.search(r'retval', str(_state .mstate.stack[-1]))):
+ if _instr['opcode'] == 'ISZERO' and re.search(r'retval', str(_state .mstate.stack[-1])):
retval_checked = True
break
@@ -84,10 +88,12 @@ def execute(statespace):
if not retval_checked:
address = instr['address']
- issue = Issue(node.contract_name, node.function_name, address, "Unchecked CALL return value")
+ issue = Issue(contract=node.contract_name, function=node.function_name,
+ address=address, title="Unchecked CALL return value", swc_id=UNCHECKED_RET_VAL)
issue.description = \
- "The return value of an external call is not checked. Note that execution continue even if the called contract throws."
+ "The return value of an external call is not checked. " \
+ "Note that execution continue even if the called contract throws."
issues.append(issue)
diff --git a/mythril/analysis/report.py b/mythril/analysis/report.py
index 35bbae07..a6cfd59d 100644
--- a/mythril/analysis/report.py
+++ b/mythril/analysis/report.py
@@ -3,9 +3,10 @@ import json
import operator
from jinja2 import PackageLoader, Environment
+
class Issue:
- def __init__(self, contract, function, address, title, _type="Informational", description="", debug=""):
+ def __init__(self, contract, function, address, swc_id, title, _type="Informational", description="", debug=""):
self.title = title
self.contract = contract
@@ -14,6 +15,7 @@ class Issue:
self.description = description
self.type = _type
self.debug = debug
+ self.swc_id = swc_id
self.filename = None
self.code = None
self.lineno = None
@@ -22,7 +24,8 @@ class Issue:
@property
def as_dict(self):
- issue = {'title': self.title, 'contract': self.contract, 'description': self.description, 'function': self.function, 'type': self.type, 'address': self.address, 'debug': self.debug}
+ issue = {'title': self.title, 'swc_id': self.swc_id, 'contract': self.contract, 'description': self.description,
+ 'function': self.function, 'type': self.type, 'address': self.address, 'debug': self.debug}
if self.filename and self.lineno:
issue['filename'] = self.filename
@@ -40,6 +43,7 @@ class Issue:
self.code = codeinfo.code
self.lineno = codeinfo.lineno
+
class Report:
environment = Environment(loader=PackageLoader('mythril.analysis'), trim_blocks=True)
diff --git a/mythril/analysis/swc_data.py b/mythril/analysis/swc_data.py
new file mode 100644
index 00000000..204dc6da
--- /dev/null
+++ b/mythril/analysis/swc_data.py
@@ -0,0 +1,23 @@
+DEFAULT_FUNCTION_VISIBILITY = '100'
+INTEGER_OVERFLOW_AND_UNDERFLOW = '101'
+OUTDATED_COMPILER_VERSION = '102'
+FLOATING_PRAGMA = '103'
+UNCHECKED_RET_VAL = '104'
+UNPROTECTED_ETHER_WITHDRAWAL = '105'
+UNPROTECTED_SELFDESTRUCT = '106'
+REENTRANCY = '107'
+DEFAULT_STATE_VARIABLE_VISIBILITY = '108'
+UNINITIALIZED_STORAGE_POINTER = '109'
+ASSERT_VIOLATION = '110'
+DEPRICATED_FUNCTIONS_USAGE = '111'
+DELEGATECALL_TO_UNTRUSTED_CONTRACT = '112'
+MULTIPLE_SENDS = '113'
+TX_ORDER_DEPENDENCE = '114'
+TX_ORIGIN_USAGE = '115'
+TIMESTAMP_DEPENDENCE = '116'
+# TODO: SWC ID 116 is missing, Add it if it's added to the https://github.com/SmartContractSecurity/SWC-registry
+INCORRECT_CONSTRUCTOR_NAME = '118'
+SHADOWING_STATE_VARIABLES = '119'
+WEAK_RANDOMNESS = '120'
+SIGNATURE_REPLAY = '121'
+IMPROPER_VERIFICATION_BASED_ON_MSG_SENDER = '122'
diff --git a/mythril/analysis/templates/report_as_markdown.jinja2 b/mythril/analysis/templates/report_as_markdown.jinja2
index 3f83245f..00781b21 100644
--- a/mythril/analysis/templates/report_as_markdown.jinja2
+++ b/mythril/analysis/templates/report_as_markdown.jinja2
@@ -3,7 +3,7 @@
{% for issue in issues %}
## {{ issue.title }}
-
+- SWC ID: {{ issue.swc_id }}
- Type: {{ issue.type }}
- Contract: {{ issue.contract | default("Unknown") }}
- Function name: `{{ issue.function }}`
diff --git a/mythril/analysis/templates/report_as_text.jinja2 b/mythril/analysis/templates/report_as_text.jinja2
index 7e7e1482..b126d05a 100644
--- a/mythril/analysis/templates/report_as_text.jinja2
+++ b/mythril/analysis/templates/report_as_text.jinja2
@@ -1,6 +1,7 @@
{% if issues %}
{% for issue in issues %}
==== {{ issue.title }} ====
+SWC ID: {{ issue.swc_id }}
Type: {{ issue.type }}
Contract: {{ issue.contract | default("Unknown") }}
Function name: {{ issue.function }}
diff --git a/tests/testdata/outputs_expected/calls.sol.o.json b/tests/testdata/outputs_expected/calls.sol.o.json
index c8723c44..0454cca4 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.json
+++ b/tests/testdata/outputs_expected/calls.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "swc_id": "114", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
diff --git a/tests/testdata/outputs_expected/calls.sol.o.markdown b/tests/testdata/outputs_expected/calls.sol.o.markdown
index fb9e28ff..22d9ad75 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.markdown
+++ b/tests/testdata/outputs_expected/calls.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Message call to external contract
-
+- SWC ID: 107
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x5a6814ec`
@@ -12,7 +12,7 @@
This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x5a6814ec`
@@ -23,7 +23,7 @@ This contract executes a message call to to another contract. Make sure that the
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Message call to external contract
-
+- SWC ID: 107
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xd24b08cc`
@@ -34,7 +34,7 @@ The return value of an external call is not checked. Note that execution continu
This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
## Transaction order dependence
-
+- SWC ID: 114
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xd24b08cc`
@@ -45,7 +45,7 @@ This contract executes a message call to an address found at storage slot 1. Thi
A possible transaction order dependence vulnerability exists in function _function_0xd24b08cc. The value or direction of the call statement is determined from a tainted storage location
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xd24b08cc`
@@ -56,7 +56,7 @@ A possible transaction order dependence vulnerability exists in function _functi
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Message call to external contract
-
+- SWC ID: 107
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe11f493e`
@@ -67,7 +67,7 @@ The return value of an external call is not checked. Note that execution continu
This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
## State change after external call
-
+- SWC ID: 107
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe11f493e`
@@ -78,7 +78,7 @@ This contract executes a message call to to another contract. Make sure that the
The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe11f493e`
@@ -89,7 +89,7 @@ The contract account state is changed after an external call. Consider that the
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Message call to external contract
-
+- SWC ID: 107
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe1d10f79`
@@ -100,7 +100,7 @@ The return value of an external call is not checked. Note that execution continu
This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe1d10f79`
diff --git a/tests/testdata/outputs_expected/calls.sol.o.text b/tests/testdata/outputs_expected/calls.sol.o.text
index c0ce9b71..b8588c29 100644
--- a/tests/testdata/outputs_expected/calls.sol.o.text
+++ b/tests/testdata/outputs_expected/calls.sol.o.text
@@ -1,4 +1,5 @@
==== Message call to external contract ====
+SWC ID: 107
Type: Informational
Contract: Unknown
Function name: _function_0x5a6814ec
@@ -7,6 +8,7 @@ This contract executes a message call to to another contract. Make sure that the
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0x5a6814ec
@@ -15,6 +17,7 @@ The return value of an external call is not checked. Note that execution continu
--------------------
==== Message call to external contract ====
+SWC ID: 107
Type: Warning
Contract: Unknown
Function name: _function_0xd24b08cc
@@ -23,6 +26,7 @@ This contract executes a message call to an address found at storage slot 1. Thi
--------------------
==== Transaction order dependence ====
+SWC ID: 114
Type: Warning
Contract: Unknown
Function name: _function_0xd24b08cc
@@ -31,6 +35,7 @@ A possible transaction order dependence vulnerability exists in function _functi
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0xd24b08cc
@@ -39,6 +44,7 @@ The return value of an external call is not checked. Note that execution continu
--------------------
==== Message call to external contract ====
+SWC ID: 107
Type: Informational
Contract: Unknown
Function name: _function_0xe11f493e
@@ -47,6 +53,7 @@ This contract executes a message call to to another contract. Make sure that the
--------------------
==== State change after external call ====
+SWC ID: 107
Type: Warning
Contract: Unknown
Function name: _function_0xe11f493e
@@ -55,6 +62,7 @@ The contract account state is changed after an external call. Consider that the
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0xe11f493e
@@ -63,6 +71,7 @@ The return value of an external call is not checked. Note that execution continu
--------------------
==== Message call to external contract ====
+SWC ID: 107
Type: Warning
Contract: Unknown
Function name: _function_0xe1d10f79
@@ -71,6 +80,7 @@ This contract executes a message call to an address provided as a function argum
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0xe1d10f79
diff --git a/tests/testdata/outputs_expected/environments.sol.o.json b/tests/testdata/outputs_expected/environments.sol.o.json
index f335f368..20d5d5be 100644
--- a/tests/testdata/outputs_expected/environments.sol.o.json
+++ b/tests/testdata/outputs_expected/environments.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 158, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `_function_0x83f12fec`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "_function_0x83f12fec", "title": "Integer Overflow", "type": "Warning"}, {"address": 278, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `_function_0x83f12fec`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "_function_0x83f12fec", "title": "Integer Overflow", "type": "Warning"}, {"address": 378, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `_function_0x83f12fec`.\nThe subtraction may result in a value < 0.", "function": "_function_0x83f12fec", "title": "Integer Underflow", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 158, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `_function_0x83f12fec`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "_function_0x83f12fec", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}, {"address": 278, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `_function_0x83f12fec`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "_function_0x83f12fec", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}, {"address": 378, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `_function_0x83f12fec`.\nThe subtraction may result in a value < 0.", "function": "_function_0x83f12fec", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/environments.sol.o.markdown b/tests/testdata/outputs_expected/environments.sol.o.markdown
index 66157a20..201f8882 100644
--- a/tests/testdata/outputs_expected/environments.sol.o.markdown
+++ b/tests/testdata/outputs_expected/environments.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Integer Overflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `_function_0x83f12fec`
@@ -13,7 +13,7 @@ A possible integer overflow exists in the function `_function_0x83f12fec`.
The addition or multiplication may result in a value higher than the maximum representable integer.
## Integer Overflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `_function_0x83f12fec`
@@ -25,7 +25,7 @@ A possible integer overflow exists in the function `_function_0x83f12fec`.
The addition or multiplication may result in a value higher than the maximum representable integer.
## Integer Underflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `_function_0x83f12fec`
diff --git a/tests/testdata/outputs_expected/environments.sol.o.text b/tests/testdata/outputs_expected/environments.sol.o.text
index 991518a2..6adfb9a6 100644
--- a/tests/testdata/outputs_expected/environments.sol.o.text
+++ b/tests/testdata/outputs_expected/environments.sol.o.text
@@ -1,4 +1,5 @@
==== Integer Overflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: _function_0x83f12fec
@@ -8,6 +9,7 @@ The addition or multiplication may result in a value higher than the maximum rep
--------------------
==== Integer Overflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: _function_0x83f12fec
@@ -17,6 +19,7 @@ The addition or multiplication may result in a value higher than the maximum rep
--------------------
==== Integer Underflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: _function_0x83f12fec
diff --git a/tests/testdata/outputs_expected/ether_send.sol.o.json b/tests/testdata/outputs_expected/ether_send.sol.o.json
index d893749f..407c4912 100644
--- a/tests/testdata/outputs_expected/ether_send.sol.o.json
+++ b/tests/testdata/outputs_expected/ether_send.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 722, "contract": "Unknown", "debug": "", "description": "In the function `withdrawfunds()` a non-zero amount of Ether is sent to msg.sender.\n\nThere is a check on storage index 1. This storage slot can be written to by calling the function `crowdfunding()`.", "function": "withdrawfunds()", "title": "Ether send", "type": "Warning"}, {"address": 883, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `invest()`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "invest()", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 722, "contract": "Unknown", "debug": "", "description": "In the function `withdrawfunds()` a non-zero amount of Ether is sent to msg.sender.\n\nThere is a check on storage index 1. This storage slot can be written to by calling the function `crowdfunding()`.", "function": "withdrawfunds()", "swc_id": "105", "title": "Ether send", "type": "Warning"}, {"address": 883, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `invest()`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "invest()", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/ether_send.sol.o.markdown b/tests/testdata/outputs_expected/ether_send.sol.o.markdown
index e5a3f7cd..264ac963 100644
--- a/tests/testdata/outputs_expected/ether_send.sol.o.markdown
+++ b/tests/testdata/outputs_expected/ether_send.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Ether send
-
+- SWC ID: 105
- Type: Warning
- Contract: Unknown
- Function name: `withdrawfunds()`
@@ -14,7 +14,7 @@ In the function `withdrawfunds()` a non-zero amount of Ether is sent to msg.send
There is a check on storage index 1. This storage slot can be written to by calling the function `crowdfunding()`.
## Integer Overflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `invest()`
diff --git a/tests/testdata/outputs_expected/ether_send.sol.o.text b/tests/testdata/outputs_expected/ether_send.sol.o.text
index d6d548c7..2135800f 100644
--- a/tests/testdata/outputs_expected/ether_send.sol.o.text
+++ b/tests/testdata/outputs_expected/ether_send.sol.o.text
@@ -1,4 +1,5 @@
==== Ether send ====
+SWC ID: 105
Type: Warning
Contract: Unknown
Function name: withdrawfunds()
@@ -9,6 +10,7 @@ There is a check on storage index 1. This storage slot can be written to by call
--------------------
==== Integer Overflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: invest()
diff --git a/tests/testdata/outputs_expected/exceptions.sol.o.json b/tests/testdata/outputs_expected/exceptions.sol.o.json
index e923bb3a..4d913166 100644
--- a/tests/testdata/outputs_expected/exceptions.sol.o.json
+++ b/tests/testdata/outputs_expected/exceptions.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 446, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0x546455b5", "title": "Exception state", "type": "Informational"}, {"address": 484, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0x92dd38ea", "title": "Exception state", "type": "Informational"}, {"address": 506, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0xa08299f1", "title": "Exception state", "type": "Informational"}, {"address": 531, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0xb34c3610", "title": "Exception state", "type": "Informational"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 446, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0x546455b5", "swc_id": "110", "title": "Exception state", "type": "Informational"}, {"address": 484, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0x92dd38ea", "swc_id": "110", "title": "Exception state", "type": "Informational"}, {"address": 506, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0xa08299f1", "swc_id": "110", "title": "Exception state", "type": "Informational"}, {"address": 531, "contract": "Unknown", "debug": "", "description": "A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking. ", "function": "_function_0xb34c3610", "swc_id": "110", "title": "Exception state", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/exceptions.sol.o.markdown b/tests/testdata/outputs_expected/exceptions.sol.o.markdown
index 337dfa99..bf2756be 100644
--- a/tests/testdata/outputs_expected/exceptions.sol.o.markdown
+++ b/tests/testdata/outputs_expected/exceptions.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Exception state
-
+- SWC ID: 110
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x546455b5`
@@ -12,7 +12,7 @@
A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking.
## Exception state
-
+- SWC ID: 110
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x92dd38ea`
@@ -23,7 +23,7 @@ A reachable exception (opcode 0xfe) has been detected. This can be caused by typ
A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking.
## Exception state
-
+- SWC ID: 110
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xa08299f1`
@@ -34,7 +34,7 @@ A reachable exception (opcode 0xfe) has been detected. This can be caused by typ
A reachable exception (opcode 0xfe) has been detected. This can be caused by type errors, division by zero, out-of-bounds array access, or assert violations. This is acceptable in most situations. Note however that `assert()` should only be used to check invariants. Use `require()` for regular input checking.
## Exception state
-
+- SWC ID: 110
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xb34c3610`
diff --git a/tests/testdata/outputs_expected/exceptions.sol.o.text b/tests/testdata/outputs_expected/exceptions.sol.o.text
index 1cfc4adc..1473c77c 100644
--- a/tests/testdata/outputs_expected/exceptions.sol.o.text
+++ b/tests/testdata/outputs_expected/exceptions.sol.o.text
@@ -1,4 +1,5 @@
==== Exception state ====
+SWC ID: 110
Type: Informational
Contract: Unknown
Function name: _function_0x546455b5
@@ -7,6 +8,7 @@ A reachable exception (opcode 0xfe) has been detected. This can be caused by typ
--------------------
==== Exception state ====
+SWC ID: 110
Type: Informational
Contract: Unknown
Function name: _function_0x92dd38ea
@@ -15,6 +17,7 @@ A reachable exception (opcode 0xfe) has been detected. This can be caused by typ
--------------------
==== Exception state ====
+SWC ID: 110
Type: Informational
Contract: Unknown
Function name: _function_0xa08299f1
@@ -23,6 +26,7 @@ A reachable exception (opcode 0xfe) has been detected. This can be caused by typ
--------------------
==== Exception state ====
+SWC ID: 110
Type: Informational
Contract: Unknown
Function name: _function_0xb34c3610
diff --git a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.json b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.json
index ccdf57c0..4c42213f 100644
--- a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.json
+++ b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 626, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x141f32ff", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 857, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x9b58bc26", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 1038, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xeea4c864", "title": "Message call to external contract", "type": "Warning"}, {"address": 1046, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xeea4c864", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 626, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x141f32ff", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 857, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x9b58bc26", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 1038, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xeea4c864", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 1046, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xeea4c864", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.markdown b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.markdown
index 40003ab4..7208086f 100644
--- a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.markdown
+++ b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x141f32ff`
@@ -12,7 +12,7 @@
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x9b58bc26`
@@ -23,7 +23,7 @@ The return value of an external call is not checked. Note that execution continu
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Message call to external contract
-
+- SWC ID: 107
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xeea4c864`
@@ -34,7 +34,7 @@ The return value of an external call is not checked. Note that execution continu
This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xeea4c864`
diff --git a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.text b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.text
index e08de551..46f49440 100644
--- a/tests/testdata/outputs_expected/kinds_of_calls.sol.o.text
+++ b/tests/testdata/outputs_expected/kinds_of_calls.sol.o.text
@@ -1,4 +1,5 @@
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0x141f32ff
@@ -7,6 +8,7 @@ The return value of an external call is not checked. Note that execution continu
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0x9b58bc26
@@ -15,6 +17,7 @@ The return value of an external call is not checked. Note that execution continu
--------------------
==== Message call to external contract ====
+SWC ID: 107
Type: Warning
Contract: Unknown
Function name: _function_0xeea4c864
@@ -23,6 +26,7 @@ This contract executes a message call to an address provided as a function argum
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0xeea4c864
diff --git a/tests/testdata/outputs_expected/multi_contracts.sol.o.json b/tests/testdata/outputs_expected/multi_contracts.sol.o.json
index 1d4a5e35..54eac503 100644
--- a/tests/testdata/outputs_expected/multi_contracts.sol.o.json
+++ b/tests/testdata/outputs_expected/multi_contracts.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 142, "contract": "Unknown", "debug": "", "description": "In the function `_function_0x8a4068dd` a non-zero amount of Ether is sent to msg.sender.\nIt seems that this function can be called without restrictions.", "function": "_function_0x8a4068dd", "title": "Ether send", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 142, "contract": "Unknown", "debug": "", "description": "In the function `_function_0x8a4068dd` a non-zero amount of Ether is sent to msg.sender.\nIt seems that this function can be called without restrictions.", "function": "_function_0x8a4068dd", "swc_id": "105", "title": "Ether send", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/multi_contracts.sol.o.markdown b/tests/testdata/outputs_expected/multi_contracts.sol.o.markdown
index 22db2dfc..b146f22f 100644
--- a/tests/testdata/outputs_expected/multi_contracts.sol.o.markdown
+++ b/tests/testdata/outputs_expected/multi_contracts.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Ether send
-
+- SWC ID: 105
- Type: Warning
- Contract: Unknown
- Function name: `_function_0x8a4068dd`
diff --git a/tests/testdata/outputs_expected/multi_contracts.sol.o.text b/tests/testdata/outputs_expected/multi_contracts.sol.o.text
index 9369353e..c44c2d18 100644
--- a/tests/testdata/outputs_expected/multi_contracts.sol.o.text
+++ b/tests/testdata/outputs_expected/multi_contracts.sol.o.text
@@ -1,4 +1,5 @@
==== Ether send ====
+SWC ID: 105
Type: Warning
Contract: Unknown
Function name: _function_0x8a4068dd
diff --git a/tests/testdata/outputs_expected/origin.sol.o.json b/tests/testdata/outputs_expected/origin.sol.o.json
index 1ac2d554..640bce9c 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.json
+++ b/tests/testdata/outputs_expected/origin.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 317, "contract": "Unknown", "debug": "", "description": "Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin", "function": "transferOwnership(address)", "title": "Use of tx.origin", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 317, "contract": "Unknown", "debug": "", "description": "Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin", "function": "transferOwnership(address)", "swc_id": "115", "title": "Use of tx.origin", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/origin.sol.o.markdown b/tests/testdata/outputs_expected/origin.sol.o.markdown
index d35e697e..772ef122 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.markdown
+++ b/tests/testdata/outputs_expected/origin.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Use of tx.origin
-
+- SWC ID: 115
- Type: Warning
- Contract: Unknown
- Function name: `transferOwnership(address)`
@@ -9,5 +9,5 @@
### Description
-Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
+Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin
diff --git a/tests/testdata/outputs_expected/origin.sol.o.text b/tests/testdata/outputs_expected/origin.sol.o.text
index 9eb9c055..f159a8eb 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.text
+++ b/tests/testdata/outputs_expected/origin.sol.o.text
@@ -1,9 +1,10 @@
==== Use of tx.origin ====
+SWC ID: 115
Type: Warning
Contract: Unknown
Function name: transferOwnership(address)
PC address: 317
-Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
+Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin
--------------------
diff --git a/tests/testdata/outputs_expected/overflow.sol.o.json b/tests/testdata/outputs_expected/overflow.sol.o.json
index 341e5b46..68ade21b 100644
--- a/tests/testdata/outputs_expected/overflow.sol.o.json
+++ b/tests/testdata/outputs_expected/overflow.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `sendeth(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "sendeth(address,uint256)", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `sendeth(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/overflow.sol.o.markdown b/tests/testdata/outputs_expected/overflow.sol.o.markdown
index 8baede40..d50ecc59 100644
--- a/tests/testdata/outputs_expected/overflow.sol.o.markdown
+++ b/tests/testdata/outputs_expected/overflow.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Integer Underflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
@@ -13,7 +13,7 @@ A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
## Integer Underflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
@@ -25,7 +25,7 @@ A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
## Integer Overflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
diff --git a/tests/testdata/outputs_expected/overflow.sol.o.text b/tests/testdata/outputs_expected/overflow.sol.o.text
index bd2a4c99..c41cd641 100644
--- a/tests/testdata/outputs_expected/overflow.sol.o.text
+++ b/tests/testdata/outputs_expected/overflow.sol.o.text
@@ -1,4 +1,5 @@
==== Integer Underflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
@@ -8,6 +9,7 @@ The subtraction may result in a value < 0.
--------------------
==== Integer Underflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
@@ -17,6 +19,7 @@ The subtraction may result in a value < 0.
--------------------
==== Integer Overflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
diff --git a/tests/testdata/outputs_expected/returnvalue.sol.o.json b/tests/testdata/outputs_expected/returnvalue.sol.o.json
index 11ebd735..81ee3cb3 100644
--- a/tests/testdata/outputs_expected/returnvalue.sol.o.json
+++ b/tests/testdata/outputs_expected/returnvalue.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 196, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x633ab5e0", "title": "Message call to external contract", "type": "Informational"}, {"address": 285, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe3bea282", "title": "Message call to external contract", "type": "Informational"}, {"address": 290, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe3bea282", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 196, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x633ab5e0", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 285, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe3bea282", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 290, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe3bea282", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/returnvalue.sol.o.markdown b/tests/testdata/outputs_expected/returnvalue.sol.o.markdown
index 3d12c700..f3a058bd 100644
--- a/tests/testdata/outputs_expected/returnvalue.sol.o.markdown
+++ b/tests/testdata/outputs_expected/returnvalue.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Message call to external contract
-
+- SWC ID: 107
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x633ab5e0`
@@ -12,7 +12,7 @@
This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
## Message call to external contract
-
+- SWC ID: 107
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe3bea282`
@@ -23,7 +23,7 @@ This contract executes a message call to to another contract. Make sure that the
This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
## Unchecked CALL return value
-
+- SWC ID: 104
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe3bea282`
diff --git a/tests/testdata/outputs_expected/returnvalue.sol.o.text b/tests/testdata/outputs_expected/returnvalue.sol.o.text
index c7a67ecb..2a8b1470 100644
--- a/tests/testdata/outputs_expected/returnvalue.sol.o.text
+++ b/tests/testdata/outputs_expected/returnvalue.sol.o.text
@@ -1,4 +1,5 @@
==== Message call to external contract ====
+SWC ID: 107
Type: Informational
Contract: Unknown
Function name: _function_0x633ab5e0
@@ -7,6 +8,7 @@ This contract executes a message call to to another contract. Make sure that the
--------------------
==== Message call to external contract ====
+SWC ID: 107
Type: Informational
Contract: Unknown
Function name: _function_0xe3bea282
@@ -15,6 +17,7 @@ This contract executes a message call to to another contract. Make sure that the
--------------------
==== Unchecked CALL return value ====
+SWC ID: 104
Type: Informational
Contract: Unknown
Function name: _function_0xe3bea282
diff --git a/tests/testdata/outputs_expected/suicide.sol.o.json b/tests/testdata/outputs_expected/suicide.sol.o.json
index a023d575..cac3a1ac 100644
--- a/tests/testdata/outputs_expected/suicide.sol.o.json
+++ b/tests/testdata/outputs_expected/suicide.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 146, "contract": "Unknown", "debug": "", "description": "The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.\n", "function": "_function_0xcbf0b0c0", "title": "Unchecked SUICIDE", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 146, "contract": "Unknown", "debug": "", "description": "The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.\n", "function": "_function_0xcbf0b0c0", "swc_id": "106", "title": "Unchecked SUICIDE", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/suicide.sol.o.markdown b/tests/testdata/outputs_expected/suicide.sol.o.markdown
index 0f51764f..12be4413 100644
--- a/tests/testdata/outputs_expected/suicide.sol.o.markdown
+++ b/tests/testdata/outputs_expected/suicide.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Unchecked SUICIDE
-
+- SWC ID: 106
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xcbf0b0c0`
diff --git a/tests/testdata/outputs_expected/suicide.sol.o.text b/tests/testdata/outputs_expected/suicide.sol.o.text
index 59710c11..2b9117d4 100644
--- a/tests/testdata/outputs_expected/suicide.sol.o.text
+++ b/tests/testdata/outputs_expected/suicide.sol.o.text
@@ -1,4 +1,5 @@
==== Unchecked SUICIDE ====
+SWC ID: 106
Type: Warning
Contract: Unknown
Function name: _function_0xcbf0b0c0
diff --git a/tests/testdata/outputs_expected/underflow.sol.o.json b/tests/testdata/outputs_expected/underflow.sol.o.json
index 341e5b46..68ade21b 100644
--- a/tests/testdata/outputs_expected/underflow.sol.o.json
+++ b/tests/testdata/outputs_expected/underflow.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `sendeth(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "sendeth(address,uint256)", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "A possible integer overflow exists in the function `sendeth(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/underflow.sol.o.markdown b/tests/testdata/outputs_expected/underflow.sol.o.markdown
index 8baede40..d50ecc59 100644
--- a/tests/testdata/outputs_expected/underflow.sol.o.markdown
+++ b/tests/testdata/outputs_expected/underflow.sol.o.markdown
@@ -1,7 +1,7 @@
# Analysis results for test-filename.sol
## Integer Underflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
@@ -13,7 +13,7 @@ A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
## Integer Underflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
@@ -25,7 +25,7 @@ A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
## Integer Overflow
-
+- SWC ID: 101
- Type: Warning
- Contract: Unknown
- Function name: `sendeth(address,uint256)`
diff --git a/tests/testdata/outputs_expected/underflow.sol.o.text b/tests/testdata/outputs_expected/underflow.sol.o.text
index bd2a4c99..c41cd641 100644
--- a/tests/testdata/outputs_expected/underflow.sol.o.text
+++ b/tests/testdata/outputs_expected/underflow.sol.o.text
@@ -1,4 +1,5 @@
==== Integer Underflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
@@ -8,6 +9,7 @@ The subtraction may result in a value < 0.
--------------------
==== Integer Underflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
@@ -17,6 +19,7 @@ The subtraction may result in a value < 0.
--------------------
==== Integer Overflow ====
+SWC ID: 101
Type: Warning
Contract: Unknown
Function name: sendeth(address,uint256)
From 2b45816d430a1bd737aa417fa25f7d5bb8f3625f Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Fri, 28 Sep 2018 19:02:55 +0530
Subject: [PATCH 005/213] Add swc id to dependence_on_predictable_vars
---
.../modules/dependence_on_predictable_vars.py | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index 6395c0e3..d64fd459 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -3,7 +3,7 @@ from z3 import *
from mythril.analysis.ops import VarType
from mythril.analysis import solver
from mythril.analysis.report import Issue
-from mythril.analysis.swc_data import *
+from mythril.analysis.swc_data import TIMESTAMP_DEPENDENCE
from mythril.exceptions import UnsatError
import logging
@@ -57,7 +57,7 @@ def execute(statespace):
description += "- block.{}\n".format(item)
if solve(call):
issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
- swc_id=SHADOWING_STATE_VARIABLES, title="Dependence on predictable environment variable",
+ swc_id=TIMESTAMP_DEPENDENCE, title="Dependence on predictable environment variable",
_type="Warning", description=description)
issues.append(issue)
@@ -85,8 +85,9 @@ def execute(statespace):
" is used to determine Ether recipient"
description += ", this expression will always be equal to zero."
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Dependence on predictable variable",
- "Warning", description)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
+ address=address, title="Dependence on predictable variable",
+ _type="Warning", description=description)
issues.append(issue)
break
else:
@@ -105,8 +106,9 @@ def execute(statespace):
if index and solve(call):
description += 'block.blockhash() is calculated using a value from storage ' \
'at index {}'.format(index)
- issue = Issue(call.node.contract_name, call.node.function_name, address, "Dependence on predictable variable",
- "Informational", description)
+ issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
+ address=address, title="Dependence on predictable variable",
+ _type="Informational", description=description, swc_id=TIMESTAMP_DEPENDENCE)
issues.append(issue)
break
return issues
From e0b955b7459126f5c605a8d922c320040d8af596 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Fri, 28 Sep 2018 19:05:04 +0530
Subject: [PATCH 006/213] fix the blocktimestamp swc
---
mythril/analysis/modules/dependence_on_predictable_vars.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index d64fd459..7c909960 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -87,7 +87,7 @@ def execute(statespace):
issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
address=address, title="Dependence on predictable variable",
- _type="Warning", description=description)
+ _type="Warning", description=description, swc_id=TIMESTAMP_DEPENDENCE)
issues.append(issue)
break
else:
From 326ed2440359f514473bc7bf08033cae58f79d5e Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Sat, 29 Sep 2018 11:39:44 +0530
Subject: [PATCH 007/213] Add the predictable vars dependence
---
.../modules/dependence_on_predictable_vars.py | 12 ++++++++----
mythril/analysis/swc_data.py | 2 ++
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index 7c909960..c58d4e33 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -3,7 +3,7 @@ from z3 import *
from mythril.analysis.ops import VarType
from mythril.analysis import solver
from mythril.analysis.report import Issue
-from mythril.analysis.swc_data import TIMESTAMP_DEPENDENCE
+from mythril.analysis.swc_data import TIMESTAMP_DEPENDENCE, PREDICTABLE_VARS_DEPENDENCE
from mythril.exceptions import UnsatError
import logging
@@ -56,8 +56,12 @@ def execute(statespace):
for item in found:
description += "- block.{}\n".format(item)
if solve(call):
+ if item == 'timestamp':
+ swc_type = TIMESTAMP_DEPENDENCE
+ else:
+ swc_type = PREDICTABLE_VARS_DEPENDENCE
issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
- swc_id=TIMESTAMP_DEPENDENCE, title="Dependence on predictable environment variable",
+ swc_id=swc_type, title="Dependence on predictable environment variable",
_type="Warning", description=description)
issues.append(issue)
@@ -87,7 +91,7 @@ def execute(statespace):
issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
address=address, title="Dependence on predictable variable",
- _type="Warning", description=description, swc_id=TIMESTAMP_DEPENDENCE)
+ _type="Warning", description=description, swc_id=PREDICTABLE_VARS_DEPENDENCE)
issues.append(issue)
break
else:
@@ -108,7 +112,7 @@ def execute(statespace):
'at index {}'.format(index)
issue = Issue(contract=call.node.contract_name, function=call.node.function_name,
address=address, title="Dependence on predictable variable",
- _type="Informational", description=description, swc_id=TIMESTAMP_DEPENDENCE)
+ _type="Informational", description=description, swc_id=PREDICTABLE_VARS_DEPENDENCE)
issues.append(issue)
break
return issues
diff --git a/mythril/analysis/swc_data.py b/mythril/analysis/swc_data.py
index 204dc6da..3ab8f9b4 100644
--- a/mythril/analysis/swc_data.py
+++ b/mythril/analysis/swc_data.py
@@ -21,3 +21,5 @@ SHADOWING_STATE_VARIABLES = '119'
WEAK_RANDOMNESS = '120'
SIGNATURE_REPLAY = '121'
IMPROPER_VERIFICATION_BASED_ON_MSG_SENDER = '122'
+
+PREDICTABLE_VARS_DEPENDENCE = 'N/A' # TODO: Add the swc id when this is added to the SWC Registry
From c37bef3a3393a30b83e7ca47d4e8c18f784506a4 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Sat, 29 Sep 2018 11:40:56 +0530
Subject: [PATCH 008/213] cleanup
---
mythril/analysis/modules/dependence_on_predictable_vars.py | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index c58d4e33..56cc3156 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -56,10 +56,7 @@ def execute(statespace):
for item in found:
description += "- block.{}\n".format(item)
if solve(call):
- if item == 'timestamp':
- swc_type = TIMESTAMP_DEPENDENCE
- else:
- swc_type = PREDICTABLE_VARS_DEPENDENCE
+ swc_type = TIMESTAMP_DEPENDENCE if item == 'timestamp' else PREDICTABLE_VARS_DEPENDENCE
issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
swc_id=swc_type, title="Dependence on predictable environment variable",
_type="Warning", description=description)
From 6121969e222457ff1459b511eff36217f029098e Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Sat, 29 Sep 2018 20:44:59 +0700
Subject: [PATCH 009/213] Update README.md
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index b9737ba1..b52624c6 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Mythril OSS is the classic security analysis tool for Ethereum smart contracts.
Whether you want to contribute, need support, or want to learn what we have cooking for the future, our [Discord server](https://discord.gg/E3YrVtG) will serve your needs!
-Oh and by the way, we're now building a whole security tools ecosystem with [Mythril Platform API](https://mythril.ai). You should definitely check that out as well.
+Oh and by the way, we're now building a whole security tools ecosystem with [Mythril Platform](https://mythril.ai). You should definitely check that out as well.
## Installation and setup
From a7911b7083f183ae477877584f0410f0866a42f0 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Sat, 29 Sep 2018 20:49:05 +0700
Subject: [PATCH 010/213] Add list of articles
---
README.md | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/README.md b/README.md
index b52624c6..aec4b962 100644
--- a/README.md
+++ b/README.md
@@ -35,9 +35,13 @@ Instructions for using the 'myth' tool are found on the [Wiki](https://github.co
For support or general discussions please join the Mythril community on [Discord](https://discord.gg/E3YrVtG).
-## Presentations, papers and videos
-
-- [HITBSecConf 2018 conference paper](https://github.com/b-mueller/smashing-smart-contracts/blob/master/smashing-smart-contracts-1of1.pdf)
-- [HITBSecConf 2018 - Smashing Ethereum smart contracts for fun and real profit](https://www.youtube.com/watch?v=iqf6epACgds)
+## Presentations, papers and articles
+
+- [Analyzing Ethereum Smart Contracts for Vulnerabilities](https://hackernoon.com/scanning-ethereum-smart-contracts-for-vulnerabilities-b5caefd995df)
+- [What Caused the Parity SUICIDE Vulnerability & How to Detect Similar Bugs](https://hackernoon.com/what-caused-the-latest-100-million-ethereum-bug-and-a-detection-tool-for-similar-bugs-7b80f8ab7279)
+- [Detecting Integer Overflows in Ethereum Smart Contracts](https://media.consensys.net/detecting-batchoverflow-and-similar-flaws-in-ethereum-smart-contracts-93cf5a5aaac8)
+- [How Formal Verification Can Ensure Flawless Smart Contracts](https://media.consensys.net/how-formal-verification-can-ensure-flawless-smart-contracts-cbda8ad99bd1)
+- [Smashing Smart Contracts for Fun and Real Profit](https://hackernoon.com/hitb2018ams-smashing-smart-contracts-for-fun-and-real-profit-720f5e3ac777)
+- [HITBSecConf 2018 - Presentation video](https://www.youtube.com/watch?v=iqf6epACgds)
- [EDCon Toronto 2018 - Mythril: Find bugs and verify security properties in your contracts](https://www.youtube.com/watch?v=NJ9StJThxZY&feature=youtu.be&t=3h3m18s)
From 86268ffce3664d3861c639f7da94744b576ae869 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 29 Sep 2018 15:58:35 +0200
Subject: [PATCH 011/213] Adds invalid instruction Exception
---
mythril/laser/ethereum/evm_exceptions.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mythril/laser/ethereum/evm_exceptions.py b/mythril/laser/ethereum/evm_exceptions.py
index 2f149aca..80223762 100644
--- a/mythril/laser/ethereum/evm_exceptions.py
+++ b/mythril/laser/ethereum/evm_exceptions.py
@@ -12,3 +12,7 @@ class StackOverflowException(VmException):
class InvalidJumpDestination(VmException):
pass
+
+
+class InvalidInstruction(VmException):
+ pass
From 88777350e1bc9e5bf8b7eb8d1592113a70edcb4c Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 29 Sep 2018 15:59:50 +0200
Subject: [PATCH 012/213] Raise InvalidJumpDestination exception on invalid op,
and optimize imports
---
mythril/laser/ethereum/instructions.py | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 3d5d2bf7..f4bf93a9 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -6,15 +6,15 @@ from ethereum import utils
from z3 import Extract, UDiv, simplify, Concat, ULT, UGT, BitVecNumRef, Not, \
is_false, is_expr, ExprRef, URem, SRem, BitVec, Solver, is_true, BitVecVal, If, BoolRef, Or
+import mythril.laser.ethereum.natives as natives
import mythril.laser.ethereum.util as helper
from mythril.laser.ethereum import util
from mythril.laser.ethereum.call import get_call_parameters
+from mythril.laser.ethereum.evm_exceptions import VmException, StackUnderflowException, InvalidJumpDestination
+from mythril.laser.ethereum.keccak import KeccakFunctionManager
from mythril.laser.ethereum.state import GlobalState, CalldataType
-import mythril.laser.ethereum.natives as natives
from mythril.laser.ethereum.transaction import MessageCallTransaction, TransactionStartSignal, \
ContractCreationTransaction
-from mythril.laser.ethereum.evm_exceptions import VmException, StackUnderflowException, InvalidJumpDestination
-from mythril.laser.ethereum.keccak import KeccakFunctionManager
TT256 = 2 ** 256
TT256M1 = 2 ** 256 - 1
@@ -1008,7 +1008,7 @@ class Instruction:
@StateTransition()
def invalid_(self, global_state):
- return []
+ raise InvalidJumpDestination
@StateTransition()
def stop_(self, global_state):
From 9bd6a08b47ea317fda5bf3c35536ad1e53a121dd Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 29 Sep 2018 16:05:00 +0200
Subject: [PATCH 013/213] Add justification/documentation to
vmExceptionHandling
---
mythril/laser/ethereum/svm.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 9abf6ba0..1ea21b53 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -124,6 +124,9 @@ class LaserEVM:
new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(global_state)
except VmException as e:
+ # In this case we don't put an unmodified world state in the open_states list
+ # Since in the case of an exceptional halt all changes should be discarded, and this world state would not
+ # provide us with a previously unseen world state
logging.debug("Encountered a VmException, ending path: `{}`".format(str(e)))
new_global_states = []
From dc0e281bd5092138ccdca7c1b3e22c62e2cd2ea4 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 29 Sep 2018 16:22:53 +0200
Subject: [PATCH 014/213] Add assert_fail_ implementation
---
mythril/laser/ethereum/instructions.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index f4bf93a9..ea4b56c2 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -1004,7 +1004,8 @@ class Instruction:
@StateTransition()
def assert_fail_(self, global_state):
- return []
+ # 0xfe: designated invalid opcode
+ raise InvalidJumpDestination
@StateTransition()
def invalid_(self, global_state):
From b5722f6948a27c641aad5faaa480e7c0e3484a88 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 1 Oct 2018 14:41:55 +0200
Subject: [PATCH 015/213] im
---
mythril/laser/ethereum/svm.py | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 1ea21b53..a2cd294f 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -124,11 +124,31 @@ class LaserEVM:
new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(global_state)
except VmException as e:
- # In this case we don't put an unmodified world state in the open_states list
- # Since in the case of an exceptional halt all changes should be discarded, and this world state would not
- # provide us with a previously unseen world state
- logging.debug("Encountered a VmException, ending path: `{}`".format(str(e)))
new_global_states = []
+ # transaction, return_global_state = global_state.transaction_stack.pop()
+ #
+ # if return_global_state is None:
+ # # In this case we don't put an unmodified world state in the open_states list Since in the case of an
+ # # exceptional halt all changes should be discarded, and this world state would not provide us with a
+ # # previously unseen world state
+ # logging.debug("Encountered a VmException, ending path: `{}`".format(str(e)))
+ # new_global_states = []
+ # else:
+ # # First execute the post hook for the transaction ending instruction
+ # self._execute_post_hook(op_code, [global_state])
+ #
+ # # Resume execution of the transaction initializing instruction
+ # op_code = return_global_state.environment.code.instruction_list[return_global_state.mstate.pc]['opcode']
+ #
+ # # Set execution result in the return_state
+ # return_global_state.last_return_data = 0
+ #
+ # # Execute the post instruction handler
+ # new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(return_global_state, True)
+ #
+ # # In order to get a nice call graph we need to set the nodes here
+ # for state in new_global_states:
+ # state.node = global_state.node
except TransactionStartSignal as e:
# Setup new global state
From 5a783b2184177b7bfb2f549233a3f4be0f1f8263 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 1 Oct 2018 14:41:55 +0200
Subject: [PATCH 016/213] VmException revert changes
---
mythril/laser/ethereum/svm.py | 51 ++++++++++++++++++++++-------------
1 file changed, 32 insertions(+), 19 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 1ea21b53..14590e9a 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -124,11 +124,18 @@ class LaserEVM:
new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(global_state)
except VmException as e:
- # In this case we don't put an unmodified world state in the open_states list
- # Since in the case of an exceptional halt all changes should be discarded, and this world state would not
- # provide us with a previously unseen world state
- logging.debug("Encountered a VmException, ending path: `{}`".format(str(e)))
- new_global_states = []
+ transaction, return_global_state = global_state.transaction_stack.pop()
+
+ if return_global_state is None:
+ # In this case we don't put an unmodified world state in the open_states list Since in the case of an
+ # exceptional halt all changes should be discarded, and this world state would not provide us with a
+ # previously unseen world state
+ logging.debug("Encountered a VmException, ending path: `{}`".format(str(e)))
+ new_global_states = []
+ else:
+ # First execute the post hook for the transaction ending instruction
+ self._execute_post_hook(op_code, [global_state])
+ new_global_states = self._end_message_call(return_global_state, transaction, global_state, revert_changes=True)
except TransactionStartSignal as e:
# Setup new global state
@@ -152,25 +159,31 @@ class LaserEVM:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [e.global_state])
- # Resume execution of the transaction initializing instruction
- op_code = return_global_state.environment.code.instruction_list[return_global_state.mstate.pc]['opcode']
+ new_global_states = self._end_message_call(return_global_state, transaction, global_state, revert_changes=False)
- # Set execution result in the return_state
- return_global_state.last_return_data = transaction.return_data
- return_global_state.world_state = copy(global_state.world_state)
- return_global_state.environment.active_account = \
- global_state.accounts[return_global_state.environment.active_account.address]
+ self._execute_post_hook(op_code, new_global_states)
- # Execute the post instruction handler
- new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(return_global_state, True)
+ return new_global_states, op_code
- # In order to get a nice call graph we need to set the nodes here
- for state in new_global_states:
- state.node = global_state.node
+ def _end_message_call(self, return_global_state, transaction, global_state, revert_changes=False):
+ # Resume execution of the transaction initializing instruction
+ op_code = return_global_state.environment.code.instruction_list[return_global_state.mstate.pc]['opcode']
- self._execute_post_hook(op_code, new_global_states)
+ # Set execution result in the return_state
+ return_global_state.last_return_data = transaction.return_data
+ if not revert_changes:
+ return_global_state.world_state = copy(global_state.world_state)
+ return_global_state.environment.active_account = \
+ global_state.accounts[return_global_state.environment.active_account.address]
- return new_global_states, op_code
+ # Execute the post instruction handler
+ new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(return_global_state, True)
+
+ # In order to get a nice call graph we need to set the nodes here
+ for state in new_global_states:
+ state.node = global_state.node
+
+ return new_global_states
def _measure_coverage(self, global_state):
code = global_state.environment.code.bytecode
From 1ea3f00de2a835ec3ea99a5c9e5b185ec2a915aa Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 1 Oct 2018 14:56:14 +0200
Subject: [PATCH 017/213] Use correct exception
---
mythril/laser/ethereum/instructions.py | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index ea4b56c2..a7c19959 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -10,7 +10,8 @@ import mythril.laser.ethereum.natives as natives
import mythril.laser.ethereum.util as helper
from mythril.laser.ethereum import util
from mythril.laser.ethereum.call import get_call_parameters
-from mythril.laser.ethereum.evm_exceptions import VmException, StackUnderflowException, InvalidJumpDestination
+from mythril.laser.ethereum.evm_exceptions import VmException, StackUnderflowException, InvalidJumpDestination, \
+ InvalidInstruction
from mythril.laser.ethereum.keccak import KeccakFunctionManager
from mythril.laser.ethereum.state import GlobalState, CalldataType
from mythril.laser.ethereum.transaction import MessageCallTransaction, TransactionStartSignal, \
@@ -1005,11 +1006,11 @@ class Instruction:
@StateTransition()
def assert_fail_(self, global_state):
# 0xfe: designated invalid opcode
- raise InvalidJumpDestination
+ raise InvalidInstruction
@StateTransition()
def invalid_(self, global_state):
- raise InvalidJumpDestination
+ raise InvalidInstruction
@StateTransition()
def stop_(self, global_state):
From 87d485ac67d90dee05f5aba37ae7d658f05339b9 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 1 Oct 2018 15:15:52 +0200
Subject: [PATCH 018/213] Implement returndata
---
mythril/laser/ethereum/svm.py | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 14590e9a..f68ba7b9 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -135,7 +135,8 @@ class LaserEVM:
else:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [global_state])
- new_global_states = self._end_message_call(return_global_state, transaction, global_state, revert_changes=True)
+ new_global_states = self._end_message_call(return_global_state, transaction, global_state,
+ revert_changes=True, return_data=0)
except TransactionStartSignal as e:
# Setup new global state
@@ -159,18 +160,19 @@ class LaserEVM:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [e.global_state])
- new_global_states = self._end_message_call(return_global_state, transaction, global_state, revert_changes=False)
+ new_global_states = self._end_message_call(return_global_state, transaction, global_state,
+ revert_changes=False, return_data=transaction.return_data)
self._execute_post_hook(op_code, new_global_states)
return new_global_states, op_code
- def _end_message_call(self, return_global_state, transaction, global_state, revert_changes=False):
+ def _end_message_call(self, return_global_state, global_state, revert_changes=False, return_data=0):
# Resume execution of the transaction initializing instruction
op_code = return_global_state.environment.code.instruction_list[return_global_state.mstate.pc]['opcode']
# Set execution result in the return_state
- return_global_state.last_return_data = transaction.return_data
+ return_global_state.last_return_data = return_data
if not revert_changes:
return_global_state.world_state = copy(global_state.world_state)
return_global_state.environment.active_account = \
From 190cb523c9db582a655e6da2c34792d6ad734d0d Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 1 Oct 2018 15:31:18 +0200
Subject: [PATCH 019/213] Remove unused argument
---
mythril/laser/ethereum/svm.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index f68ba7b9..f4387e62 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -135,7 +135,7 @@ class LaserEVM:
else:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [global_state])
- new_global_states = self._end_message_call(return_global_state, transaction, global_state,
+ new_global_states = self._end_message_call(return_global_state, global_state,
revert_changes=True, return_data=0)
except TransactionStartSignal as e:
@@ -160,7 +160,7 @@ class LaserEVM:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [e.global_state])
- new_global_states = self._end_message_call(return_global_state, transaction, global_state,
+ new_global_states = self._end_message_call(return_global_state, global_state,
revert_changes=False, return_data=transaction.return_data)
self._execute_post_hook(op_code, new_global_states)
From 6e0d775c09f32bb9e757b53b7f8d768f618f452a Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Mon, 1 Oct 2018 20:05:46 +0530
Subject: [PATCH 020/213] Remove all broad exception catches in laser
---
mythril/laser/ethereum/call.py | 1 +
mythril/laser/ethereum/instructions.py | 80 +++++++++++---------------
mythril/laser/ethereum/util.py | 12 +++-
mythril/support/loader.py | 2 +-
4 files changed, 46 insertions(+), 49 deletions(-)
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 31e6990e..b2f6a9f7 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -63,6 +63,7 @@ def get_callee_address(global_state:GlobalState, dynamic_loader: DynLoader, symb
# attempt to read the contract address from instance storage
try:
callee_address = dynamic_loader.read_storage(environment.active_account.address, index)
+ # TODO: verify whether this happens or not
except:
logging.debug("Error accessing contract storage.")
raise ValueError
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 3d5d2bf7..27172f0a 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -264,18 +264,17 @@ class Instruction:
try:
s0 = util.get_concrete_int(s0)
s1 = util.get_concrete_int(s1)
+ except ValueError:
+ return []
- if s0 <= 31:
- testbit = s0 * 8 + 7
- if s1 & (1 << testbit):
- state.stack.append(s1 | (TT256 - (1 << testbit)))
- else:
- state.stack.append(s1 & ((1 << testbit) - 1))
+ if s0 <= 31:
+ testbit = s0 * 8 + 7
+ if s1 & (1 << testbit):
+ state.stack.append(s1 | (TT256 - (1 << testbit)))
else:
- state.stack.append(s1)
- # TODO: broad exception handler
- except:
- return []
+ state.stack.append(s1 & ((1 << testbit) - 1))
+ else:
+ state.stack.append(s1)
return [global_state]
@@ -367,16 +366,15 @@ class Instruction:
return [global_state]
if type(b) == int:
- val = b''
try:
- for i in range(offset, offset + 32):
- val += environment.calldata[i].to_bytes(1, byteorder='big')
+ val = b''.join([calldata.to_bytes(1, byteorder='big') for calldata in
+ environment.calldata[offset:offset+32]])
logging.debug("Final value: " + str(int.from_bytes(val, byteorder='big')))
state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
- # FIXME: broad exception catch
- except:
+
+ except (util.ConcreteIntException, AttributeError):
state.stack.append(global_state.new_bitvec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
else:
@@ -404,16 +402,14 @@ class Instruction:
try:
mstart = util.get_concrete_int(op0)
- # FIXME: broad exception catch
- except:
+ except util.ConcreteIntException:
logging.debug("Unsupported symbolic memory offset in CALLDATACOPY")
return [global_state]
dstart_sym = False
try:
dstart = util.get_concrete_int(op1)
- # FIXME: broad exception catch
- except:
+ except util.ConcreteIntException:
logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY")
dstart = simplify(op1)
dstart_sym = True
@@ -421,8 +417,7 @@ class Instruction:
size_sym = False
try:
size = util.get_concrete_int(op2)
- # FIXME: broad exception catch
- except:
+ except util.ConcreteIntException:
logging.debug("Unsupported symbolic size in CALLDATACOPY")
size = simplify(op2)
size_sym = True
@@ -437,8 +432,7 @@ class Instruction:
if size > 0:
try:
state.mem_extend(mstart, size)
- # FIXME: broad exception catch
- except:
+ except TypeError:
logging.debug("Memory allocation error: mstart = " + str(mstart) + ", size = " + str(size))
state.mem_extend(mstart, 1)
state.memory[mstart] = global_state.new_bitvec(
@@ -452,7 +446,7 @@ class Instruction:
for i in range(mstart, mstart + size):
state.memory[i] = environment.calldata[i_data]
i_data += 1
- except:
+ except IndexError:
logging.debug("Exception copying calldata to memory")
state.memory[mstart] = global_state.new_bitvec(
@@ -507,8 +501,7 @@ class Instruction:
try:
index, length = util.get_concrete_int(op0), util.get_concrete_int(op1)
- # FIXME: broad exception catch
- except:
+ except util.ConcreteIntException:
# Can't access symbolic memory offsets
if is_expr(op0):
op0 = simplify(op0)
@@ -520,7 +513,7 @@ class Instruction:
data = b''.join([util.get_concrete_int(i).to_bytes(1, byteorder='big')
for i in state.memory[index: index + length]])
- except AttributeError:
+ except util.ConcreteIntException:
argument = str(state.memory[index]).replace(" ", "_")
result = BitVec("KECCAC[{}]".format(argument), 256)
@@ -552,7 +545,7 @@ class Instruction:
try:
concrete_size = helper.get_concrete_int(size)
global_state.mstate.mem_extend(concrete_memory_offset, concrete_size)
- except:
+ except (util.ConcreteIntException, TypeError):
# except both attribute error and Exception
global_state.mstate.mem_extend(concrete_memory_offset, 1)
global_state.mstate.memory[concrete_memory_offset] = \
@@ -694,7 +687,7 @@ class Instruction:
try:
mstart = util.get_concrete_int(op0)
- except AttributeError:
+ except util.ConcreteIntException:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
@@ -707,17 +700,15 @@ class Instruction:
try:
# Attempt to concretize value
+
_bytes = util.concrete_int_to_bytes(value)
- i = 0
+ state.memory[mstart:mstart+len(_bytes)] = _bytes
- for b in _bytes:
- state.memory[mstart + i] = _bytes[i]
- i += 1
- except:
+ except (AttributeError, TypeError):
try:
state.memory[mstart] = value
- except:
+ except TypeError:
logging.debug("Invalid memory access")
return [global_state]
@@ -729,7 +720,7 @@ class Instruction:
try:
offset = util.get_concrete_int(op0)
- except AttributeError:
+ except util.ConcreteIntException:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
@@ -750,7 +741,7 @@ class Instruction:
index = util.get_concrete_int(index)
return self._sload_helper(global_state, index)
- except AttributeError:
+ except util.ConcreteIntException:
if not keccak_function_manager.is_keccak(index):
return self._sload_helper(global_state, str(index))
@@ -811,7 +802,7 @@ class Instruction:
try:
index = util.get_concrete_int(index)
return self._sstore_helper(global_state, index, value)
- except AttributeError:
+ except util.ConcreteIntException:
is_keccak = keccak_function_manager.is_keccak(index)
if not is_keccak:
return self._sstore_helper(global_state, str(index), value)
@@ -864,7 +855,7 @@ class Instruction:
disassembly = global_state.environment.code
try:
jump_addr = util.get_concrete_int(state.stack.pop())
- except AttributeError:
+ except util.ConcreteIntException:
raise InvalidJumpDestination("Invalid jump argument (symbolic address)")
except IndexError:
raise StackUnderflowException()
@@ -894,8 +885,7 @@ class Instruction:
try:
jump_addr = util.get_concrete_int(op0)
- # FIXME: to broad exception handler
- except:
+ except util.ConcreteIntException:
logging.debug("Skipping JUMPI to invalid destination.")
global_state.mstate.pc += 1
return [global_state]
@@ -975,7 +965,7 @@ class Instruction:
return_data = [global_state.new_bitvec("return_data", 256)]
try:
return_data = state.memory[util.get_concrete_int(offset):util.get_concrete_int(offset + length)]
- except AttributeError:
+ except util.ConcreteIntException:
logging.debug("Return with symbolic length or offset. Not supported")
global_state.current_transaction.end(global_state, return_data)
@@ -1098,7 +1088,7 @@ class Instruction:
try:
memory_out_offset = util.get_concrete_int(memory_out_offset) if isinstance(memory_out_offset, ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size, ExprRef) else memory_out_size
- except AttributeError:
+ except util.ConcreteIntException:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
@@ -1166,7 +1156,7 @@ class Instruction:
try:
memory_out_offset = util.get_concrete_int(memory_out_offset) if isinstance(memory_out_offset, ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size, ExprRef) else memory_out_size
- except AttributeError:
+ except util.ConcreteIntException:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
@@ -1238,7 +1228,7 @@ class Instruction:
ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size,
ExprRef) else memory_out_size
- except AttributeError:
+ except util.ConcreteIntException:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
diff --git a/mythril/laser/ethereum/util.py b/mythril/laser/ethereum/util.py
index c6c8e5ce..7b9061ea 100644
--- a/mythril/laser/ethereum/util.py
+++ b/mythril/laser/ethereum/util.py
@@ -10,6 +10,10 @@ TT256M1 = 2 ** 256 - 1
TT255 = 2 ** 255
+class ConcreteIntException(AttributeError):
+ pass
+
+
def sha3(seed):
return _sha3.keccak_256(bytes(seed)).digest()
@@ -80,10 +84,12 @@ def get_concrete_int(item):
elif is_true(simplified):
return 1
else:
- raise ValueError("Symbolic boolref encountered")
-
- return simplify(item).as_long()
+ raise ConcreteIntException("Symbolic boolref encountered")
+ try:
+ return simplify(item).as_long()
+ except AttributeError:
+ raise ConcreteIntException("Got a symbolic BitVecRef")
def concrete_int_from_bytes(_bytes, start_index):
diff --git a/mythril/support/loader.py b/mythril/support/loader.py
index 7c0855ec..16d2e683 100644
--- a/mythril/support/loader.py
+++ b/mythril/support/loader.py
@@ -47,7 +47,7 @@ class DynLoader:
code = self.eth.eth_getCode(dependency_address)
- if (code == "0x"):
+ if code == "0x":
return None
else:
return Disassembly(code)
From 6fab94528a21d56dd079b6de5f003d50aa12f6a6 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Thu, 4 Oct 2018 18:41:59 +0200
Subject: [PATCH 021/213] Make return data None on exception state
---
mythril/laser/ethereum/svm.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index f4387e62..cdf85484 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -136,7 +136,7 @@ class LaserEVM:
# First execute the post hook for the transaction ending instruction
self._execute_post_hook(op_code, [global_state])
new_global_states = self._end_message_call(return_global_state, global_state,
- revert_changes=True, return_data=0)
+ revert_changes=True, return_data=None)
except TransactionStartSignal as e:
# Setup new global state
@@ -167,7 +167,7 @@ class LaserEVM:
return new_global_states, op_code
- def _end_message_call(self, return_global_state, global_state, revert_changes=False, return_data=0):
+ def _end_message_call(self, return_global_state, global_state, revert_changes=False, return_data=None):
# Resume execution of the transaction initializing instruction
op_code = return_global_state.environment.code.instruction_list[return_global_state.mstate.pc]['opcode']
From d7df0c132cebb6f69f78c8c26c9ad5866f525e8f Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Sun, 7 Oct 2018 13:48:38 +0530
Subject: [PATCH 022/213] check for new records to work on
---
mythril/laser/ethereum/taint_analysis.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/taint_analysis.py b/mythril/laser/ethereum/taint_analysis.py
index 2fdb0c52..7fd9536d 100644
--- a/mythril/laser/ethereum/taint_analysis.py
+++ b/mythril/laser/ethereum/taint_analysis.py
@@ -107,7 +107,8 @@ class TaintRunner:
records = TaintRunner.execute_node(node, record, index)
result.add_records(records)
-
+ if len(records) == 0: # continue if there is no record to work on
+ continue
children = TaintRunner.children(node, statespace, environment, transaction_stack_length)
for child in children:
current_nodes.append((child, records[-1], 0))
From 2c72a5b0e4f6955543cb0f19301b8531e82559a8 Mon Sep 17 00:00:00 2001
From: tintinweb
Date: Sun, 7 Oct 2018 13:46:48 +0200
Subject: [PATCH 023/213] fix signature db throwing FileNotFoundError when
myhtril is used as a library but init mythril dirs was never called (common
case for libs)
---
mythril/support/signatures.py | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/mythril/support/signatures.py b/mythril/support/signatures.py
index 9b64a2c6..b93d0048 100644
--- a/mythril/support/signatures.py
+++ b/mythril/support/signatures.py
@@ -111,6 +111,8 @@ class SignatureDb(object):
:return: self
"""
path = path or self.signatures_file
+ directory = os.path.split(path)[0]
+
if sync and os.path.exists(path):
# reload and save if file exists
with open(path, "r") as f:
@@ -122,7 +124,10 @@ class SignatureDb(object):
sigs.update(self.signatures) # reload file and merge cached sigs into what we load from file
self.signatures = sigs
-
+
+ if not os.path.exists(directory):
+ os.makedirs(directory) # create folder structure if not existS
+
if not os.path.exists(path): # creates signatures.json file if it doesn't exist
open(path, "w").close()
From 2d5b1bbe4a68224b36fe895086aa9ac4e2f4ef29 Mon Sep 17 00:00:00 2001
From: tintinweb
Date: Sun, 7 Oct 2018 21:03:58 +0200
Subject: [PATCH 024/213] fix FileNotFoundError if directory is empty (e.g.
path is only a file in the pwd)
---
mythril/support/signatures.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/support/signatures.py b/mythril/support/signatures.py
index b93d0048..7fb8f373 100644
--- a/mythril/support/signatures.py
+++ b/mythril/support/signatures.py
@@ -125,7 +125,7 @@ class SignatureDb(object):
sigs.update(self.signatures) # reload file and merge cached sigs into what we load from file
self.signatures = sigs
- if not os.path.exists(directory):
+ if directory and not os.path.exists(directory):
os.makedirs(directory) # create folder structure if not existS
if not os.path.exists(path): # creates signatures.json file if it doesn't exist
From 5e9f613911c2676d530fd36b8b5316a6a633da2b Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 8 Oct 2018 20:04:07 +0200
Subject: [PATCH 025/213] Implement revert
---
mythril/laser/ethereum/instructions.py | 9 ++++++++-
mythril/laser/ethereum/svm.py | 5 +++--
.../ethereum/transaction/transaction_models.py | 14 +++++++++-----
3 files changed, 20 insertions(+), 8 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index a7c19959..cb55447d 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -1001,7 +1001,14 @@ class Instruction:
@StateTransition()
def revert_(self, global_state):
- return []
+ state = global_state.mstate
+ offset, length = state.stack.pop(), state.stack.pop()
+ return_data = [global_state.new_bitvec("return_data", 256)]
+ try:
+ return_data = state.memory[util.get_concrete_int(offset):util.get_concrete_int(offset + length)]
+ except AttributeError:
+ logging.debug("Return with symbolic length or offset. Not supported")
+ global_state.current_transaction.end(global_state, return_data=return_data, revert=True)
@StateTransition()
def assert_fail_(self, global_state):
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index cdf85484..82a6551c 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -152,7 +152,7 @@ class LaserEVM:
transaction, return_global_state = e.global_state.transaction_stack.pop()
if return_global_state is None:
- if not isinstance(transaction, ContractCreationTransaction) or transaction.return_data:
+ if (not isinstance(transaction, ContractCreationTransaction) or transaction.return_data) and not e.revert:
e.global_state.world_state.node = global_state.node
self.open_states.append(e.global_state.world_state)
new_global_states = []
@@ -161,7 +161,8 @@ class LaserEVM:
self._execute_post_hook(op_code, [e.global_state])
new_global_states = self._end_message_call(return_global_state, global_state,
- revert_changes=False, return_data=transaction.return_data)
+ revert_changes=False or e.revert,
+ return_data=transaction.return_data)
self._execute_post_hook(op_code, new_global_states)
diff --git a/mythril/laser/ethereum/transaction/transaction_models.py b/mythril/laser/ethereum/transaction/transaction_models.py
index fa60599d..35826bcd 100644
--- a/mythril/laser/ethereum/transaction/transaction_models.py
+++ b/mythril/laser/ethereum/transaction/transaction_models.py
@@ -12,10 +12,12 @@ def get_next_transaction_id():
_next_transaction_id += 1
return _next_transaction_id
+
class TransactionEndSignal(Exception):
""" Exception raised when a transaction is finalized"""
- def __init__(self, global_state):
+ def __init__(self, global_state, revert=False):
self.global_state = global_state
+ self.revert = revert
class TransactionStartSignal(Exception):
@@ -70,9 +72,9 @@ class MessageCallTransaction:
return global_state
- def end(self, global_state, return_data=None):
+ def end(self, global_state, return_data=None, revert=False):
self.return_data = return_data
- raise TransactionEndSignal(global_state)
+ raise TransactionEndSignal(global_state, revert)
class ContractCreationTransaction:
@@ -125,7 +127,7 @@ class ContractCreationTransaction:
return global_state
- def end(self, global_state, return_data=None):
+ def end(self, global_state, return_data=None, revert=False):
if not all([isinstance(element, int) for element in return_data]):
self.return_data = None
@@ -136,4 +138,6 @@ class ContractCreationTransaction:
global_state.environment.active_account.code = Disassembly(contract_code)
self.return_data = global_state.environment.active_account.address
- raise TransactionEndSignal(global_state)
+ raise TransactionEndSignal(global_state, revert=revert)
+
+
From 09e04a3360b77441db230068031a2be726d6dbaa Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Mon, 8 Oct 2018 20:54:45 +0200
Subject: [PATCH 026/213] Adds vmTests
---
.../VMTests/vmTests/suicide.json | 51 +++++++++++++++++++
tests/laser/evm_testsuite/evm_test.py | 2 +-
2 files changed, 52 insertions(+), 1 deletion(-)
create mode 100644 tests/laser/evm_testsuite/VMTests/vmTests/suicide.json
diff --git a/tests/laser/evm_testsuite/VMTests/vmTests/suicide.json b/tests/laser/evm_testsuite/VMTests/vmTests/suicide.json
new file mode 100644
index 00000000..d815ceb8
--- /dev/null
+++ b/tests/laser/evm_testsuite/VMTests/vmTests/suicide.json
@@ -0,0 +1,51 @@
+{
+ "suicide" : {
+ "_info" : {
+ "comment" : "",
+ "filledwith" : "testeth 1.5.0.dev2-52+commit.d419e0a2",
+ "lllcversion" : "Version: 0.4.26-develop.2018.9.19+commit.785cbf40.Linux.g++",
+ "source" : "src/VMTestsFiller/vmTests/suicideFiller.json",
+ "sourceHash" : "4622c577440f9db4b3954a1de60bf2fac55886dcb0ec4ecaf906c25bc77372e7"
+ },
+ "callcreates" : [
+ ],
+ "env" : {
+ "currentCoinbase" : "0x2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
+ "currentDifficulty" : "0x0100",
+ "currentGasLimit" : "0x0f4240",
+ "currentNumber" : "0x00",
+ "currentTimestamp" : "0x01"
+ },
+ "exec" : {
+ "address" : "0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+ "caller" : "0xcd1722f3947def4cf144679da39c4c32bdc35681",
+ "code" : "0x33ff",
+ "data" : "0x",
+ "gas" : "0x0186a0",
+ "gasPrice" : "0x5af3107a4000",
+ "origin" : "0xcd1722f3947def4cf144679da39c4c32bdc35681",
+ "value" : "0x0de0b6b3a7640000"
+ },
+ "gas" : "0x01869e",
+ "logs" : "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
+ "out" : "0x",
+ "post" : {
+ "0xcd1722f3947def4cf144679da39c4c32bdc35681" : {
+ "balance" : "0x152d02c7e14af6800000",
+ "code" : "0x",
+ "nonce" : "0x00",
+ "storage" : {
+ }
+ }
+ },
+ "pre" : {
+ "0x0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+ "balance" : "0x152d02c7e14af6800000",
+ "code" : "0x33ff",
+ "nonce" : "0x00",
+ "storage" : {
+ }
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/tests/laser/evm_testsuite/evm_test.py b/tests/laser/evm_testsuite/evm_test.py
index 72bcacd5..82c2c973 100644
--- a/tests/laser/evm_testsuite/evm_test.py
+++ b/tests/laser/evm_testsuite/evm_test.py
@@ -12,7 +12,7 @@ import pytest
evm_test_dir = Path(__file__).parent / 'VMTests'
-test_types = ['vmArithmeticTest', 'vmBitwiseLogicOperation', 'vmPushDupSwapTest']
+test_types = ['vmArithmeticTest', 'vmBitwiseLogicOperation', 'vmPushDupSwapTest', 'vmTests']
def load_test_data(designations):
From b51eee3605f2e51186120b0781e2b4d016a5ce3d Mon Sep 17 00:00:00 2001
From: Maxime Biais
Date: Tue, 9 Oct 2018 10:49:11 +0200
Subject: [PATCH 027/213] First step to fix the solc_args option
---
mythril/mythril.py | 2 +-
mythril/support/signatures.py | 10 ++++++----
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 5d36a774..e20e1a12 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -317,7 +317,7 @@ class Mythril(object):
try:
# import signatures from solidity source
- self.sigs.import_from_solidity_source(file)
+ self.sigs.import_from_solidity_source(file, solc_binary=self.solc_binary, solc_args=self.solc_args)
# Save updated function signatures
self.sigs.write() # dump signatures to disk (previously opened file or default location)
diff --git a/mythril/support/signatures.py b/mythril/support/signatures.py
index 7fb8f373..fd8d0c3a 100644
--- a/mythril/support/signatures.py
+++ b/mythril/support/signatures.py
@@ -177,13 +177,13 @@ class SignatureDb(object):
"""
return self.get(sighash=item)
- def import_from_solidity_source(self, file_path):
+ def import_from_solidity_source(self, file_path, solc_binary="solc", solc_args=None):
"""
Import Function Signatures from solidity source files
:param file_path: solidity source code file path
:return: self
"""
- self.signatures.update(SignatureDb.get_sigs_from_file(file_path))
+ self.signatures.update(SignatureDb.get_sigs_from_file(file_path, solc_binary, solc_args))
return self
@staticmethod
@@ -206,13 +206,15 @@ class SignatureDb(object):
proxies=proxies))
@staticmethod
- def get_sigs_from_file(file_name):
+ def get_sigs_from_file(file_name, solc_binary="solc", solc_args=None):
"""
:param file_name: accepts a filename
:return: their signature mappings
"""
sigs = {}
- cmd = ["solc", "--hashes", file_name]
+ cmd = [solc_binary, "--hashes", file_name]
+ if solc_args:
+ cmd.extend([i for i in solc_args.split(" ") if i != ""])
try:
p = Popen(cmd, stdout=PIPE, stderr=PIPE)
stdout, stderr = p.communicate()
From ba34b3629c89cb087a2ccafe88606bd97894b856 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 12:51:07 +0200
Subject: [PATCH 028/213] Fix mutable default arg definitions
---
mythril/analysis/modules/external_calls.py | 5 +++--
mythril/analysis/modules/integer.py | 5 ++++-
mythril/laser/ethereum/state.py | 4 +++-
mythril/laser/ethereum/taint_analysis.py | 4 +++-
mythril/mythril.py | 4 +++-
5 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/mythril/analysis/modules/external_calls.py b/mythril/analysis/modules/external_calls.py
index 9b7d4038..2f9350af 100644
--- a/mythril/analysis/modules/external_calls.py
+++ b/mythril/analysis/modules/external_calls.py
@@ -16,8 +16,9 @@ Check for call.value()() to external addresses
MAX_SEARCH_DEPTH = 64
-def search_children(statespace, node, start_index=0, depth=0, results=[]):
-
+def search_children(statespace, node, start_index=0, depth=0, results=None):
+ if results is None:
+ results = []
logging.debug("SEARCHING NODE %d", node.uid)
if depth < MAX_SEARCH_DEPTH:
diff --git a/mythril/analysis/modules/integer.py b/mythril/analysis/modules/integer.py
index d83fd7a3..48707c11 100644
--- a/mythril/analysis/modules/integer.py
+++ b/mythril/analysis/modules/integer.py
@@ -214,7 +214,7 @@ def _check_sstore(state, taint_result):
return taint_result.check(state, -2)
-def _search_children(statespace, node, expression, taint_result=None, constraint=[], index=0, depth=0, max_depth=64):
+def _search_children(statespace, node, expression, taint_result=None, constraint=None, index=0, depth=0, max_depth=64):
"""
Checks the statespace for children states, with JUMPI or SSTORE instuctions,
for dependency on expression
@@ -227,6 +227,9 @@ def _search_children(statespace, node, expression, taint_result=None, constraint
:param max_depth: Max depth to explore
:return: List of states that match the opcodes and are dependent on expression
"""
+ if constraint is None:
+ constraint = []
+
logging.debug("SEARCHING NODE for usage of an overflowed variable %d", node.uid)
if taint_result is None:
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 03b271ac..b744fc7c 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -135,8 +135,10 @@ class MachineStack(list):
"""
STACK_LIMIT = 1024
- def __init__(self, default_list=[]):
+ def __init__(self, default_list=None):
super(MachineStack, self).__init__(default_list)
+ if default_list is None:
+ default_list = []
def append(self, element):
"""
diff --git a/mythril/laser/ethereum/taint_analysis.py b/mythril/laser/ethereum/taint_analysis.py
index 2fdb0c52..4f605008 100644
--- a/mythril/laser/ethereum/taint_analysis.py
+++ b/mythril/laser/ethereum/taint_analysis.py
@@ -82,7 +82,7 @@ class TaintRunner:
"""
@staticmethod
- def execute(statespace, node, state, initial_stack=[]):
+ def execute(statespace, node, state, initial_stack=None):
"""
Runs taint analysis on the statespace
:param statespace: symbolic statespace to run taint analysis on
@@ -91,6 +91,8 @@ class TaintRunner:
:param stack_indexes: stack indexes to introduce taint
:return: TaintResult object containing analysis results
"""
+ if initial_stack is None:
+ initial_stack = []
result = TaintResult()
transaction_stack_length = len(node.states[0].transaction_stack)
# Build initial current_node
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 5d36a774..f7c4c8d7 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -382,7 +382,9 @@ class Mythril(object):
return report
- def get_state_variable_from_storage(self, address, params=[]):
+ def get_state_variable_from_storage(self, address, params=None):
+ if params is None:
+ params = []
(position, length, mappings) = (0, 1, [])
try:
if params[0] == "mapping":
From f2677aa1eea897eee476b5b9f982db00f6212d6b Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 12:51:16 +0200
Subject: [PATCH 029/213] Replace dict creation with dict literal
---
mythril/ether/asm.py | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/mythril/ether/asm.py b/mythril/ether/asm.py
index 70fbb53a..5cc2b4b5 100644
--- a/mythril/ether/asm.py
+++ b/mythril/ether/asm.py
@@ -42,9 +42,7 @@ def easm_to_instruction_list(easm):
# Invalid code line
continue
- instruction = {}
-
- instruction['opcode'] = m.group(1)
+ instruction = {'opcode': m.group(1)}
if m.group(2):
instruction['argument'] = m.group(2)[2:]
@@ -101,9 +99,7 @@ def disassemble(bytecode):
while addr < length:
- instruction = {}
-
- instruction['address'] = addr
+ instruction = {'address': addr}
try:
if (sys.version_info > (3, 0)):
From 462388cab253d5fccf760f7044348c4938903d29 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 13:06:37 +0200
Subject: [PATCH 030/213] Set default list before super call
---
mythril/laser/ethereum/state.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index b744fc7c..16c01c3a 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -136,9 +136,9 @@ class MachineStack(list):
STACK_LIMIT = 1024
def __init__(self, default_list=None):
- super(MachineStack, self).__init__(default_list)
if default_list is None:
default_list = []
+ super(MachineStack, self).__init__(default_list)
def append(self, element):
"""
From 8f16025ab02cdfe788db5c97fb49eb7a75d3bca5 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Tue, 9 Oct 2018 07:06:57 -0700
Subject: [PATCH 031/213] Update README.md
---
README.md | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/README.md b/README.md
index aec4b962..b82dfaa5 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,10 @@ Instructions for using the 'myth' tool are found on the [Wiki](https://github.co
For support or general discussions please join the Mythril community on [Discord](https://discord.gg/E3YrVtG).
+## Vulnerability Remediation
+
+Visit the [Smart Contract Vulnerability Classification Registry](https://smartcontractsecurity.github.io/SWC-registry/) to find detailed information and remediation guidance about the vulnerabilities reported.
+
## Presentations, papers and articles
- [Analyzing Ethereum Smart Contracts for Vulnerabilities](https://hackernoon.com/scanning-ethereum-smart-contracts-for-vulnerabilities-b5caefd995df)
From 6fd8b76900bc2098e6007b126e5eb2995f43b6d1 Mon Sep 17 00:00:00 2001
From: Maxime Biais
Date: Tue, 9 Oct 2018 11:10:14 +0200
Subject: [PATCH 032/213] Fix the second issue with solc_args
---
mythril/ether/util.py | 11 +++++++++--
mythril/support/signatures.py | 4 ++--
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/mythril/ether/util.py b/mythril/ether/util.py
index ac09b4fb..0e4bae40 100644
--- a/mythril/ether/util.py
+++ b/mythril/ether/util.py
@@ -18,10 +18,17 @@ def safe_decode(hex_encoded_string):
def get_solc_json(file, solc_binary="solc", solc_args=None):
- cmd = [solc_binary, "--combined-json", "bin,bin-runtime,srcmap,srcmap-runtime", '--allow-paths', "."]
+ cmd = [solc_binary, "--combined-json", "bin,bin-runtime,srcmap,srcmap-runtime"]
if solc_args:
- cmd.extend(solc_args.split(" "))
+ cmd.extend(solc_args.split())
+
+ if not "--allow-paths" in cmd:
+ cmd.extend(["--allow-paths", "."])
+ else:
+ for i, arg in enumerate(cmd):
+ if arg == "--allow-paths":
+ cmd[i + 1] += ",."
cmd.append(file)
diff --git a/mythril/support/signatures.py b/mythril/support/signatures.py
index fd8d0c3a..7c454089 100644
--- a/mythril/support/signatures.py
+++ b/mythril/support/signatures.py
@@ -183,7 +183,7 @@ class SignatureDb(object):
:param file_path: solidity source code file path
:return: self
"""
- self.signatures.update(SignatureDb.get_sigs_from_file(file_path, solc_binary, solc_args))
+ self.signatures.update(SignatureDb.get_sigs_from_file(file_path, solc_binary=solc_binary, solc_args=solc_args))
return self
@staticmethod
@@ -214,7 +214,7 @@ class SignatureDb(object):
sigs = {}
cmd = [solc_binary, "--hashes", file_name]
if solc_args:
- cmd.extend([i for i in solc_args.split(" ") if i != ""])
+ cmd.extend(solc_args.split())
try:
p = Popen(cmd, stdout=PIPE, stderr=PIPE)
stdout, stderr = p.communicate()
From 73acb9add20c0da83842e075b512a878e19b8a60 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Tue, 9 Oct 2018 10:46:41 -0700
Subject: [PATCH 033/213] Update README.md
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index b82dfaa5..41566bac 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ For support or general discussions please join the Mythril community on [Discord
## Vulnerability Remediation
-Visit the [Smart Contract Vulnerability Classification Registry](https://smartcontractsecurity.github.io/SWC-registry/) to find detailed information and remediation guidance about the vulnerabilities reported.
+Visit the [Smart Contract Vulnerability Classification Registry](https://smartcontractsecurity.github.io/SWC-registry/) to find detailed information and remediation guidance for the vulnerabilities reported.
## Presentations, papers and articles
From 217e9c01ea89e9fa140fdd81dba659fc3d1d8cb8 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:19:21 +0200
Subject: [PATCH 034/213] Remove unused variable
---
mythril/laser/ethereum/call.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 31e6990e..4afdf49d 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -98,7 +98,7 @@ def get_callee_account(global_state, callee_address, dynamic_loader):
try:
code = dynamic_loader.dynld(environment.active_account.address, callee_address)
- except Exception as e:
+ except Exception:
logging.info("Unable to execute dynamic loader.")
raise ValueError()
if code is None:
From 6e86c183b2741cf3b481d37ae19881eb6aa2ef03 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:19:31 +0200
Subject: [PATCH 035/213] Reformat evm from tabs to spaces
---
mythril/ether/evm.py | 81 ++++++++++++++++++++++----------------------
1 file changed, 40 insertions(+), 41 deletions(-)
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 449fcdcf..4cf03752 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -7,69 +7,68 @@ from io import StringIO
import re
-def trace(code, calldata = ""):
+def trace(code, calldata=""):
+ log_handlers = ['eth.vm.op', 'eth.vm.op.stack', 'eth.vm.op.memory', 'eth.vm.op.storage']
- log_handlers = ['eth.vm.op', 'eth.vm.op.stack', 'eth.vm.op.memory', 'eth.vm.op.storage']
+ output = StringIO()
+ stream_handler = StreamHandler(output)
- output = StringIO()
- stream_handler = StreamHandler(output)
+ for handler in log_handlers:
+ log_vm_op = get_logger(handler)
+ log_vm_op.setLevel("TRACE")
+ log_vm_op.addHandler(stream_handler)
- for handler in log_handlers:
- log_vm_op = get_logger(handler)
- log_vm_op.setLevel("TRACE")
- log_vm_op.addHandler(stream_handler)
+ addr = bytes.fromhex('0123456789ABCDEF0123456789ABCDEF01234567')
- addr = bytes.fromhex('0123456789ABCDEF0123456789ABCDEF01234567')
+ state = State()
- state = State()
+ ext = messages.VMExt(state, transactions.Transaction(0, 0, 21000, addr, 0, addr))
- ext = messages.VMExt(state, transactions.Transaction(0, 0, 21000, addr, 0, addr))
+ message = vm.Message(addr, addr, 0, 21000, calldata)
- message = vm.Message(addr, addr, 0, 21000, calldata)
+ res, gas, dat = vm.vm_execute(ext, message, util.safe_decode(code))
- res, gas, dat = vm.vm_execute(ext, message, util.safe_decode(code))
+ stream_handler.flush()
- stream_handler.flush()
+ ret = output.getvalue()
- ret = output.getvalue()
+ lines = ret.split("\n")
- lines = ret.split("\n")
+ trace = []
- trace = []
+ for line in lines:
- for line in lines:
+ m = re.search(r'pc=b\'(\d+)\'.*op=([A-Z0-9]+)', line)
- m = re.search(r'pc=b\'(\d+)\'.*op=([A-Z0-9]+)', line)
+ if m:
+ pc = m.group(1)
+ op = m.group(2)
- if m:
- pc = m.group(1)
- op = m.group(2)
+ m = re.match(r'.*stack=(\[.*?\])', line)
- m = re.match(r'.*stack=(\[.*?\])', line)
-
- if (m):
+ if (m):
- stackitems = re.findall(r'b\'(\d+)\'', m.group(1))
+ stackitems = re.findall(r'b\'(\d+)\'', m.group(1))
- stack = "[";
+ stack = "[";
- if (len(stackitems)):
+ if (len(stackitems)):
- for i in range(0, len(stackitems) - 1):
- stack += hex(int(stackitems[i])) + ", "
+ for i in range(0, len(stackitems) - 1):
+ stack += hex(int(stackitems[i])) + ", "
- stack += hex(int(stackitems[-1]))
+ stack += hex(int(stackitems[-1]))
- stack += "]"
+ stack += "]"
- else:
- stack = "[]"
+ else:
+ stack = "[]"
- if (re.match(r'^PUSH.*', op)):
- val = re.search(r'pushvalue=(\d+)', line).group(1)
- pushvalue = hex(int(val))
- trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
- else:
- trace.append({'pc': pc, 'op': op, 'stack': stack})
+ if (re.match(r'^PUSH.*', op)):
+ val = re.search(r'pushvalue=(\d+)', line).group(1)
+ pushvalue = hex(int(val))
+ trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
+ else:
+ trace.append({'pc': pc, 'op': op, 'stack': stack})
- return trace
+ return trace
From 527dd0b1d8221245f74d5c826b69938efca531c9 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:20:00 +0200
Subject: [PATCH 036/213] Remove evm unused variables
---
mythril/ether/evm.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 4cf03752..4a099a1f 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -26,7 +26,7 @@ def trace(code, calldata=""):
message = vm.Message(addr, addr, 0, 21000, calldata)
- res, gas, dat = vm.vm_execute(ext, message, util.safe_decode(code))
+ vm.vm_execute(ext, message, util.safe_decode(code))
stream_handler.flush()
From 12f8460628f7e1c1ed05df0b21d858082737d0c0 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:21:02 +0200
Subject: [PATCH 037/213] Remove evm redundant parentheses
---
mythril/ether/evm.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 4a099a1f..2cc40e97 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -52,7 +52,7 @@ def trace(code, calldata=""):
stack = "[";
- if (len(stackitems)):
+ if len(stackitems):
for i in range(0, len(stackitems) - 1):
stack += hex(int(stackitems[i])) + ", "
@@ -64,7 +64,7 @@ def trace(code, calldata=""):
else:
stack = "[]"
- if (re.match(r'^PUSH.*', op)):
+ if re.match(r'^PUSH.*', op):
val = re.search(r'pushvalue=(\d+)', line).group(1)
pushvalue = hex(int(val))
trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
From 355d5edd87a5f03cc282f63d15315d2ae26aa35d Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:22:14 +0200
Subject: [PATCH 038/213] Fix line spacing in evm
---
mythril/ether/evm.py | 18 +-----------------
1 file changed, 1 insertion(+), 17 deletions(-)
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 2cc40e97..576223d5 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -9,7 +9,6 @@ import re
def trace(code, calldata=""):
log_handlers = ['eth.vm.op', 'eth.vm.op.stack', 'eth.vm.op.memory', 'eth.vm.op.storage']
-
output = StringIO()
stream_handler = StreamHandler(output)
@@ -19,48 +18,33 @@ def trace(code, calldata=""):
log_vm_op.addHandler(stream_handler)
addr = bytes.fromhex('0123456789ABCDEF0123456789ABCDEF01234567')
-
state = State()
ext = messages.VMExt(state, transactions.Transaction(0, 0, 21000, addr, 0, addr))
-
message = vm.Message(addr, addr, 0, 21000, calldata)
-
vm.vm_execute(ext, message, util.safe_decode(code))
-
stream_handler.flush()
-
ret = output.getvalue()
-
lines = ret.split("\n")
trace = []
-
for line in lines:
-
m = re.search(r'pc=b\'(\d+)\'.*op=([A-Z0-9]+)', line)
-
if m:
pc = m.group(1)
op = m.group(2)
-
m = re.match(r'.*stack=(\[.*?\])', line)
- if (m):
-
+ if m:
stackitems = re.findall(r'b\'(\d+)\'', m.group(1))
-
stack = "[";
if len(stackitems):
-
for i in range(0, len(stackitems) - 1):
stack += hex(int(stackitems[i])) + ", "
-
stack += hex(int(stackitems[-1]))
stack += "]"
-
else:
stack = "[]"
From 3d4484811a570bbdac0803de9c98b068c72c353f Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:26:03 +0200
Subject: [PATCH 039/213] Remove unused variables in instructions
---
mythril/laser/ethereum/instructions.py | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index a7c19959..ff253f3f 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -503,7 +503,6 @@ class Instruction:
global keccak_function_manager
state = global_state.mstate
- environment = global_state.environment
op0, op1 = state.stack.pop(), state.stack.pop()
try:
@@ -711,7 +710,6 @@ class Instruction:
_bytes = util.concrete_int_to_bytes(value)
i = 0
-
for b in _bytes:
state.memory[mstart + i] = _bytes[i]
i += 1
@@ -956,7 +954,7 @@ class Instruction:
state = global_state.mstate
dpth = int(self.op_code[3:])
state.stack.pop(), state.stack.pop()
- [state.stack.pop() for x in range(dpth)]
+ [state.stack.pop() for _ in range(dpth)]
# Not supported
return [global_state]
From 4dfff5fb2b917ba6a5d85061d2625340a9e980df Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:26:58 +0200
Subject: [PATCH 040/213] Refactor loop to use enumerate
---
mythril/laser/ethereum/instructions.py | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index ff253f3f..34cd76c7 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -709,10 +709,8 @@ class Instruction:
# Attempt to concretize value
_bytes = util.concrete_int_to_bytes(value)
- i = 0
- for b in _bytes:
- state.memory[mstart + i] = _bytes[i]
- i += 1
+ for i, b in enumerate(_bytes):
+ state.memory[mstart + i] = b
except:
try:
state.memory[mstart] = value
From 9a90a92297540a2b7240c666fb84408ebf0821e5 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:28:46 +0200
Subject: [PATCH 041/213] Remove unused variables from tests
---
tests/analysis/test_delegatecall.py | 2 +-
tests/laser/state/mstack_test.py | 2 +-
tests/laser/transaction/symbolic_test.py | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/tests/analysis/test_delegatecall.py b/tests/analysis/test_delegatecall.py
index 3fb02020..9e88c1fd 100644
--- a/tests/analysis/test_delegatecall.py
+++ b/tests/analysis/test_delegatecall.py
@@ -189,7 +189,7 @@ def test_delegate_call(sym_mock, concrete_mock, curr_instruction):
statespace.calls = [call]
# act
- issues = execute(statespace)
+ execute(statespace)
# assert
assert concrete_mock.call_count == 1
diff --git a/tests/laser/state/mstack_test.py b/tests/laser/state/mstack_test.py
index 7ccd51c1..6dba7031 100644
--- a/tests/laser/state/mstack_test.py
+++ b/tests/laser/state/mstack_test.py
@@ -45,7 +45,7 @@ class MachineStackTest(BaseTestCase):
mstack = MachineStack([0, 1])
with pytest.raises(NotImplementedError):
- mstack = mstack + [2]
+ mstack + [2]
@staticmethod
def test_mstack_no_support_iadd():
diff --git a/tests/laser/transaction/symbolic_test.py b/tests/laser/transaction/symbolic_test.py
index 6c27b327..91ee00f5 100644
--- a/tests/laser/transaction/symbolic_test.py
+++ b/tests/laser/transaction/symbolic_test.py
@@ -49,7 +49,7 @@ def test_execute_contract_creation(mocked_setup: MagicMock):
mocked_setup.side_effect = _is_contract_creation
# Act
- new_account = execute_contract_creation(laser_evm, "606000")
+ execute_contract_creation(laser_evm, "606000")
# Assert
# mocked_setup.assert_called()
From a85918a6f700970642447303aec9a41d26a80ca2 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:35:11 +0200
Subject: [PATCH 042/213] Remove unused variables from mythril
---
mythril/mythril.py | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 080493fd..221d136d 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -87,7 +87,7 @@ class Mythril(object):
self.sigs = signatures.SignatureDb()
try:
self.sigs.open() # tries mythril_dir/signatures.json by default (provide path= arg to make this configurable)
- except FileNotFoundError as fnfe:
+ except FileNotFoundError:
logging.info(
"No signature database found. Creating database if sigs are loaded in: " + self.sigs.signatures_file + "\n" +
"Consider replacing it with the pre-initialized database at https://raw.githubusercontent.com/ConsenSys/mythril/master/signatures.json")
@@ -259,8 +259,7 @@ class Mythril(object):
def search_db(self, search):
- def search_callback(contract, address, balance):
-
+ def search_callback(_, address, balance):
print("Address: " + address + ", balance: " + str(balance))
try:
@@ -288,10 +287,10 @@ class Mythril(object):
code = self.eth.eth_getCode(address)
except FileNotFoundError as e:
raise CriticalError("IPC error: " + str(e))
- except ConnectionError as e:
+ except ConnectionError:
raise CriticalError("Could not connect to RPC server. Make sure that your node is running and that RPC parameters are set correctly.")
except Exception as e:
- raise CriticalError("IPC / RPC error: " + str(e))
+ raise CriticalError("IPC / RPC error: " + str(e))
else:
if code == "0x" or code == "0x0":
raise CriticalError("Received an empty response from eth_getCode. Check the contract address and verify that you are on the correct chain.")
@@ -431,7 +430,7 @@ class Mythril(object):
outtxt.append("{}: {}".format(hex(i), self.eth.eth_getStorageAt(address, i)))
except FileNotFoundError as e:
raise CriticalError("IPC error: " + str(e))
- except ConnectionError as e:
+ except ConnectionError:
raise CriticalError("Could not connect to RPC server. Make sure that your node is running and that RPC parameters are set correctly.")
return '\n'.join(outtxt)
From 1428343a3d91af7694d2ebe0e1cd84047a573b69 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:37:22 +0200
Subject: [PATCH 043/213] Remove even more unused variables
---
mythril/analysis/symbolic.py | 1 -
mythril/laser/ethereum/state.py | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/mythril/analysis/symbolic.py b/mythril/analysis/symbolic.py
index 09447a67..bc2373a7 100644
--- a/mythril/analysis/symbolic.py
+++ b/mythril/analysis/symbolic.py
@@ -16,7 +16,6 @@ class SymExecWrapper:
def __init__(self, contract, address, strategy, dynloader=None, max_depth=22,
execution_timeout=None, create_timeout=None):
- s_strategy = None
if strategy == 'dfs':
s_strategy = DepthFirstSearchStrategy
elif strategy == 'bfs':
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 16c01c3a..fd35c86c 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -278,10 +278,10 @@ class GlobalState:
def new_bitvec(self, name, size=256):
transaction_id = self.current_transaction.id
- node_id = self.node.uid
return BitVec("{}_{}".format(transaction_id, name), size)
+
class WorldState:
"""
The WorldState class represents the world state as described in the yellow paper
From 2547f43f8ab3bab211bf2515ae8be578f3a04539 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:39:11 +0200
Subject: [PATCH 044/213] Remove unreachable code
---
mythril/leveldb/accountindexing.py | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mythril/leveldb/accountindexing.py b/mythril/leveldb/accountindexing.py
index 26a4ab9a..5eca5547 100644
--- a/mythril/leveldb/accountindexing.py
+++ b/mythril/leveldb/accountindexing.py
@@ -71,8 +71,6 @@ class AccountIndexer(object):
else:
raise AddressNotFoundError
- return self.db.reader._get_address_by_hash(contract_hash)
-
def _process(self, startblock):
'''
Processesing method
@@ -154,4 +152,4 @@ class AccountIndexer(object):
self.db.writer._set_last_indexed_number(self.lastProcessedBlock)
print("Finished indexing")
- self.lastBlock = self.lastProcessedBlock
\ No newline at end of file
+ self.lastBlock = self.lastProcessedBlock
From 2e56cef99a8bcfb78b1a915b63be03266ff3c0ad Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 21:52:18 +0200
Subject: [PATCH 045/213] Fix outer scope variable shadowing
---
.../modules/dependence_on_predictable_vars.py | 4 +--
mythril/analysis/modules/ether_send.py | 4 +--
mythril/analysis/modules/multiple_sends.py | 2 +-
mythril/analysis/traceexplore.py | 10 +++----
mythril/ether/evm.py | 8 +++---
mythril/leveldb/accountindexing.py | 8 +++---
mythril/leveldb/state.py | 28 +++++++++----------
tests/taint_runner_test.py | 21 +++++++-------
8 files changed, 42 insertions(+), 43 deletions(-)
diff --git a/mythril/analysis/modules/dependence_on_predictable_vars.py b/mythril/analysis/modules/dependence_on_predictable_vars.py
index 56cc3156..1e1085ab 100644
--- a/mythril/analysis/modules/dependence_on_predictable_vars.py
+++ b/mythril/analysis/modules/dependence_on_predictable_vars.py
@@ -120,8 +120,8 @@ def solve(call):
model = solver.get_model(call.node.constraints)
logging.debug("[DEPENDENCE_ON_PREDICTABLE_VARS] MODEL: " + str(model))
- for d in model.decls():
- logging.debug("[DEPENDENCE_ON_PREDICTABLE_VARS] main model: %s = 0x%x" % (d.name(), model[d].as_long()))
+ for decl in model.decls():
+ logging.debug("[DEPENDENCE_ON_PREDICTABLE_VARS] main model: %s = 0x%x" % (decl.name(), model[decl].as_long()))
return True
except UnsatError:
diff --git a/mythril/analysis/modules/ether_send.py b/mythril/analysis/modules/ether_send.py
index bfb0d057..00aac6a5 100644
--- a/mythril/analysis/modules/ether_send.py
+++ b/mythril/analysis/modules/ether_send.py
@@ -111,8 +111,8 @@ def execute(statespace):
try:
model = solver.get_model(node.constraints)
- for d in model.decls():
- logging.debug("[ETHER_SEND] main model: %s = 0x%x" % (d.name(), model[d].as_long()))
+ for decl in model.decls():
+ logging.debug("[ETHER_SEND] main model: %s = 0x%x" % (decl.name(), model[decl].as_long()))
debug = "SOLVER OUTPUT:\n" + solver.pretty_print_model(model)
diff --git a/mythril/analysis/modules/multiple_sends.py b/mythril/analysis/modules/multiple_sends.py
index 0df17575..5b36f86d 100644
--- a/mythril/analysis/modules/multiple_sends.py
+++ b/mythril/analysis/modules/multiple_sends.py
@@ -38,7 +38,7 @@ def execute(statespace):
def _explore_nodes(call, statespace):
children = _child_nodes(statespace, call.node)
- sending_children = list(filter(lambda call: call.node in children, statespace.calls))
+ sending_children = list(filter(lambda c: c.node in children, statespace.calls))
return sending_children
diff --git a/mythril/analysis/traceexplore.py b/mythril/analysis/traceexplore.py
index dc7af177..d70fdcbd 100644
--- a/mythril/analysis/traceexplore.py
+++ b/mythril/analysis/traceexplore.py
@@ -13,8 +13,8 @@ colors = [
{'border': '#4753bf', 'background': '#3b46a1', 'highlight': {'border': '#fff', 'background': '#424db3'}},
]
+
def get_serializable_statespace(statespace):
-
nodes = []
edges = []
@@ -40,10 +40,10 @@ def get_serializable_statespace(statespace):
color = color_map[node.get_cfg_dict()['contract_name']]
- def get_state_accounts(state):
+ def get_state_accounts(node_state):
state_accounts = []
- for key in state.accounts:
- account = state.accounts[key].as_dict
+ for key in node_state.accounts:
+ account = node_state.accounts[key].as_dict
account.pop('code', None)
account['balance'] = str(account['balance'])
@@ -81,7 +81,7 @@ def get_serializable_statespace(statespace):
for edge in statespace.edges:
- if (edge.condition is None):
+ if edge.condition is None:
label = ""
else:
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 576223d5..545e30ff 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -27,7 +27,7 @@ def trace(code, calldata=""):
ret = output.getvalue()
lines = ret.split("\n")
- trace = []
+ state_trace = []
for line in lines:
m = re.search(r'pc=b\'(\d+)\'.*op=([A-Z0-9]+)', line)
if m:
@@ -51,8 +51,8 @@ def trace(code, calldata=""):
if re.match(r'^PUSH.*', op):
val = re.search(r'pushvalue=(\d+)', line).group(1)
pushvalue = hex(int(val))
- trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
+ state_trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
else:
- trace.append({'pc': pc, 'op': op, 'stack': stack})
+ state_trace.append({'pc': pc, 'op': op, 'stack': stack})
- return trace
+ return state_trace
diff --git a/mythril/leveldb/accountindexing.py b/mythril/leveldb/accountindexing.py
index 5eca5547..dacc2f0a 100644
--- a/mythril/leveldb/accountindexing.py
+++ b/mythril/leveldb/accountindexing.py
@@ -63,11 +63,11 @@ class AccountIndexer(object):
def get_contract_by_hash(self, contract_hash):
'''
- get mapped address by its hash, if not found try indexing
+ get mapped contract_address by its hash, if not found try indexing
'''
- address = self.db.reader._get_address_by_hash(contract_hash)
- if address is not None:
- return address
+ contract_address = self.db.reader._get_address_by_hash(contract_hash)
+ if contract_address is not None:
+ return contract_address
else:
raise AddressNotFoundError
diff --git a/mythril/leveldb/state.py b/mythril/leveldb/state.py
index 96360300..c6a24119 100644
--- a/mythril/leveldb/state.py
+++ b/mythril/leveldb/state.py
@@ -43,9 +43,9 @@ class Account(rlp.Serializable):
('code_hash', hash32)
]
- def __init__(self, nonce, balance, storage, code_hash, db, address):
+ def __init__(self, nonce, balance, storage, code_hash, db, addr):
self.db = db
- self.address = address
+ self.address = addr
super(Account, self).__init__(nonce, balance, storage, code_hash)
self.storage_cache = {}
self.storage_trie = SecureTrie(Trie(self.db))
@@ -73,12 +73,12 @@ class Account(rlp.Serializable):
return self.storage_cache[key]
@classmethod
- def blank_account(cls, db, address, initial_nonce=0):
+ def blank_account(cls, db, addr, initial_nonce=0):
'''
creates a blank account
'''
db.put(BLANK_HASH, b'')
- o = cls(initial_nonce, 0, trie.BLANK_ROOT, BLANK_HASH, db, address)
+ o = cls(initial_nonce, 0, trie.BLANK_ROOT, BLANK_HASH, db, addr)
o.existent_at_start = False
return o
@@ -100,21 +100,21 @@ class State():
self.journal = []
self.cache = {}
- def get_and_cache_account(self, address):
+ def get_and_cache_account(self, addr):
'''
gets and caches an account for an addres, creates blank if not found
'''
- if address in self.cache:
- return self.cache[address]
- rlpdata = self.secure_trie.get(address)
- if rlpdata == trie.BLANK_NODE and len(address) == 32: # support for hashed addresses
- rlpdata = self.trie.get(address)
+ if addr in self.cache:
+ return self.cache[addr]
+ rlpdata = self.secure_trie.get(addr)
+ if rlpdata == trie.BLANK_NODE and len(addr) == 32: # support for hashed addresses
+ rlpdata = self.trie.get(addr)
if rlpdata != trie.BLANK_NODE:
- o = rlp.decode(rlpdata, Account, db=self.db, address=address)
+ o = rlp.decode(rlpdata, Account, db=self.db, address=addr)
else:
o = Account.blank_account(
- self.db, address, 0)
- self.cache[address] = o
+ self.db, addr, 0)
+ self.cache[addr] = o
o._mutable = True
o._cached_rlp = None
return o
@@ -125,4 +125,4 @@ class State():
'''
for address_hash, rlpdata in self.secure_trie.trie.iter_branch():
if rlpdata != trie.BLANK_NODE:
- yield rlp.decode(rlpdata, Account, db=self.db, address=address_hash)
\ No newline at end of file
+ yield rlp.decode(rlpdata, Account, db=self.db, address=address_hash)
diff --git a/tests/taint_runner_test.py b/tests/taint_runner_test.py
index 17ef00eb..9b533f3b 100644
--- a/tests/taint_runner_test.py
+++ b/tests/taint_runner_test.py
@@ -6,13 +6,14 @@ from mythril.laser.ethereum.cfg import Node, Edge
from mythril.laser.ethereum.state import MachineState, Account, Environment, GlobalState
from mythril.laser.ethereum.svm import LaserEVM
-def test_execute_state(mocker):
+
+def test_execute_state(state_mocker):
record = TaintRecord()
record.stack = [True, False, True]
state = GlobalState(None, None, None)
state.mstate.stack = [1, 2, 3]
- mocker.patch.object(state, 'get_current_instruction')
+ state_mocker.patch.object(state, 'get_current_instruction')
state.get_current_instruction.return_value = {"opcode": "ADD"}
# Act
@@ -23,19 +24,19 @@ def test_execute_state(mocker):
assert record.stack == [True, False, True]
-def test_execute_node(mocker):
+def test_execute_node(node_mocker):
record = TaintRecord()
record.stack = [True, True, False, False]
state_1 = GlobalState(None, None, None)
state_1.mstate.stack = [1, 2, 3, 1]
state_1.mstate.pc = 1
- mocker.patch.object(state_1, 'get_current_instruction')
+ node_mocker.patch.object(state_1, 'get_current_instruction')
state_1.get_current_instruction.return_value = {"opcode": "SWAP1"}
state_2 = GlobalState(None, 1, None)
state_2.mstate.stack = [1, 2, 4, 1]
- mocker.patch.object(state_2, 'get_current_instruction')
+ node_mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
node = Node("Test contract")
@@ -54,19 +55,17 @@ def test_execute_node(mocker):
assert state_1 in record.states
-
-
-def test_execute(mocker):
+def test_execute(state_mocker):
active_account = Account('0x00')
environment = Environment(active_account, None, None, None, None, None)
state_1 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_1.mstate.stack = [1, 2]
- mocker.patch.object(state_1, 'get_current_instruction')
+ state_mocker.patch.object(state_1, 'get_current_instruction')
state_1.get_current_instruction.return_value = {"opcode": "PUSH"}
state_2 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_2.mstate.stack = [1, 2, 3]
- mocker.patch.object(state_2, 'get_current_instruction')
+ state_mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
node_1 = Node("Test contract")
@@ -74,7 +73,7 @@ def test_execute(mocker):
state_3 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_3.mstate.stack = [1, 2]
- mocker.patch.object(state_3, 'get_current_instruction')
+ state_mocker.patch.object(state_3, 'get_current_instruction')
state_3.get_current_instruction.return_value = {"opcode": "ADD"}
node_2 = Node("Test contract")
From 0142e6e41b2c9abe6b4ea2d1a6528c00669e129e Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 22:11:41 +0200
Subject: [PATCH 046/213] Fix builtin name shadowing
---
mythril/interfaces/cli.py | 4 ++--
mythril/leveldb/accountindexing.py | 6 ++---
mythril/leveldb/client.py | 38 +++++++++++++++---------------
3 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index be6cec59..e10b4e98 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -17,8 +17,8 @@ from mythril.mythril import Mythril
from mythril.version import VERSION
-def exit_with_error(format, message):
- if format == 'text' or format == 'markdown':
+def exit_with_error(fmt, message):
+ if fmt == 'text' or fmt == 'markdown':
print(message)
else:
result = {'success': False, 'error': str(message), 'issues': []}
diff --git a/mythril/leveldb/accountindexing.py b/mythril/leveldb/accountindexing.py
index dacc2f0a..f61ebe80 100644
--- a/mythril/leveldb/accountindexing.py
+++ b/mythril/leveldb/accountindexing.py
@@ -80,9 +80,9 @@ class AccountIndexer(object):
addresses = []
for blockNum in range(startblock, startblock + BATCH_SIZE):
- hash = self.db.reader._get_block_hash(blockNum)
- if hash is not None:
- receipts = self.db.reader._get_block_receipts(hash, blockNum)
+ block_hash = self.db.reader._get_block_hash(blockNum)
+ if block_hash is not None:
+ receipts = self.db.reader._get_block_receipts(block_hash, blockNum)
for receipt in receipts:
if receipt.contractAddress is not None and not all(b == 0 for b in receipt.contractAddress):
diff --git a/mythril/leveldb/client.py b/mythril/leveldb/client.py
index b192b004..7d0bb0df 100644
--- a/mythril/leveldb/client.py
+++ b/mythril/leveldb/client.py
@@ -79,38 +79,38 @@ class LevelDBReader(object):
gets head block header
'''
if not self.head_block_header:
- hash = self.db.get(head_header_key)
- num = self._get_block_number(hash)
- self.head_block_header = self._get_block_header(hash, num)
+ block_hash = self.db.get(head_header_key)
+ num = self._get_block_number(block_hash)
+ self.head_block_header = self._get_block_header(block_hash, num)
# find header with valid state
while not self.db.get(self.head_block_header.state_root) and self.head_block_header.prevhash is not None:
- hash = self.head_block_header.prevhash
- num = self._get_block_number(hash)
- self.head_block_header = self._get_block_header(hash, num)
+ block_hash = self.head_block_header.prevhash
+ num = self._get_block_number(block_hash)
+ self.head_block_header = self._get_block_header(block_hash, num)
return self.head_block_header
- def _get_block_number(self, hash):
+ def _get_block_number(self, block_hash):
'''
- gets block number by hash
+ gets block number by its hash
'''
- number_key = block_hash_prefix + hash
+ number_key = block_hash_prefix + block_hash
return self.db.get(number_key)
- def _get_block_header(self, hash, num):
+ def _get_block_header(self, block_hash, num):
'''
get block header by block header hash & number
'''
- header_key = header_prefix + num + hash
+ header_key = header_prefix + num + block_hash
block_header_data = self.db.get(header_key)
header = rlp.decode(block_header_data, sedes=BlockHeader)
return header
- def _get_address_by_hash(self, hash):
+ def _get_address_by_hash(self, block_hash):
'''
get mapped address by its hash
'''
- address_key = address_prefix + hash
+ address_key = address_prefix + block_hash
return self.db.get(address_key)
def _get_last_indexed_number(self):
@@ -119,12 +119,12 @@ class LevelDBReader(object):
'''
return self.db.get(address_mapping_head_key)
- def _get_block_receipts(self, hash, num):
+ def _get_block_receipts(self, block_hash, num):
'''
get block transaction receipts by block header hash & number
'''
number = _format_block_number(num)
- receipts_key = block_receipts_prefix + number + hash
+ receipts_key = block_receipts_prefix + number + block_hash
receipts_data = self.db.get(receipts_key)
receipts = rlp.decode(receipts_data, sedes=CountableList(ReceiptForStorage))
return receipts
@@ -216,12 +216,12 @@ class EthLevelDB(object):
if not cnt % 1000:
logging.info("Searched %d contracts" % cnt)
- def contract_hash_to_address(self, hash):
+ def contract_hash_to_address(self, contract_hash):
'''
tries to find corresponding account address
'''
- address_hash = binascii.a2b_hex(utils.remove_0x_head(hash))
+ address_hash = binascii.a2b_hex(utils.remove_0x_head(contract_hash))
indexer = AccountIndexer(self)
return _encode_hex(indexer.get_contract_by_hash(address_hash))
@@ -230,9 +230,9 @@ class EthLevelDB(object):
'''
gets block header by block number
'''
- hash = self.reader._get_block_hash(number)
+ block_hash = self.reader._get_block_hash(number)
block_number = _format_block_number(number)
- return self.reader._get_block_header(hash, block_number)
+ return self.reader._get_block_header(block_hash, block_number)
def eth_getBlockByNumber(self, number):
'''
From 128a6f76e2bd51b1868dad7dd4ca283f03de14e0 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Tue, 9 Oct 2018 22:26:48 +0200
Subject: [PATCH 047/213] Revert taint test refactoring to fix pytest fixtures
---
tests/taint_runner_test.py | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/tests/taint_runner_test.py b/tests/taint_runner_test.py
index 9b533f3b..e8dd3078 100644
--- a/tests/taint_runner_test.py
+++ b/tests/taint_runner_test.py
@@ -7,13 +7,13 @@ from mythril.laser.ethereum.state import MachineState, Account, Environment, Glo
from mythril.laser.ethereum.svm import LaserEVM
-def test_execute_state(state_mocker):
+def test_execute_state(mocker):
record = TaintRecord()
record.stack = [True, False, True]
state = GlobalState(None, None, None)
state.mstate.stack = [1, 2, 3]
- state_mocker.patch.object(state, 'get_current_instruction')
+ mocker.patch.object(state, 'get_current_instruction')
state.get_current_instruction.return_value = {"opcode": "ADD"}
# Act
@@ -24,19 +24,19 @@ def test_execute_state(state_mocker):
assert record.stack == [True, False, True]
-def test_execute_node(node_mocker):
+def test_execute_node(mocker):
record = TaintRecord()
record.stack = [True, True, False, False]
state_1 = GlobalState(None, None, None)
state_1.mstate.stack = [1, 2, 3, 1]
state_1.mstate.pc = 1
- node_mocker.patch.object(state_1, 'get_current_instruction')
+ mocker.patch.object(state_1, 'get_current_instruction')
state_1.get_current_instruction.return_value = {"opcode": "SWAP1"}
state_2 = GlobalState(None, 1, None)
state_2.mstate.stack = [1, 2, 4, 1]
- node_mocker.patch.object(state_2, 'get_current_instruction')
+ mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
node = Node("Test contract")
@@ -55,17 +55,17 @@ def test_execute_node(node_mocker):
assert state_1 in record.states
-def test_execute(state_mocker):
+def test_execute(mocker):
active_account = Account('0x00')
environment = Environment(active_account, None, None, None, None, None)
state_1 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_1.mstate.stack = [1, 2]
- state_mocker.patch.object(state_1, 'get_current_instruction')
+ mocker.patch.object(state_1, 'get_current_instruction')
state_1.get_current_instruction.return_value = {"opcode": "PUSH"}
state_2 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_2.mstate.stack = [1, 2, 3]
- state_mocker.patch.object(state_2, 'get_current_instruction')
+ mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
node_1 = Node("Test contract")
@@ -73,7 +73,7 @@ def test_execute(state_mocker):
state_3 = GlobalState(None, environment, None, MachineState(gas=10000000))
state_3.mstate.stack = [1, 2]
- state_mocker.patch.object(state_3, 'get_current_instruction')
+ mocker.patch.object(state_3, 'get_current_instruction')
state_3.get_current_instruction.return_value = {"opcode": "ADD"}
node_2 = Node("Test contract")
From e01121939022b4a9d28137c6a202f47aceea1686 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Tue, 9 Oct 2018 17:37:14 -0400
Subject: [PATCH 048/213] calldataload indexing (closes #528)
---
mythril/laser/ethereum/instructions.py | 59 ++++++++++---------
mythril/laser/ethereum/state.py | 28 ++++++++-
.../laser/ethereum/transaction/symbolic.py | 4 +-
3 files changed, 60 insertions(+), 31 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index a7c19959..9eeac800 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -353,37 +353,42 @@ class Instruction:
environment = global_state.environment
op0 = state.stack.pop()
- try:
- offset = util.get_concrete_int(simplify(op0))
- b = environment.calldata[offset]
- except AttributeError:
- logging.debug("CALLDATALOAD: Unsupported symbolic index")
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- return [global_state]
- except IndexError:
- logging.debug("Calldata not set, using symbolic variable instead")
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- return [global_state]
+ if environment.calldata_type == CalldataType.CONCRETE:
+ try:
+ offset = util.get_concrete_int(simplify(op0))
+ b = environment.calldata[offset]
+ except AttributeError:
+ logging.debug("CALLDATALOAD: Unsupported symbolic index")
+ state.stack.append(global_state.new_bitvec(
+ "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
+ return [global_state]
+ except IndexError:
+ logging.debug("Calldata not set, using symbolic variable instead")
+ state.stack.append(global_state.new_bitvec(
+ "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
+ return [global_state]
- if type(b) == int:
- val = b''
+ if type(b) == int:
+ val = b''
- try:
- for i in range(offset, offset + 32):
- val += environment.calldata[i].to_bytes(1, byteorder='big')
+ try:
+ for i in range(offset, offset + 32):
+ val += environment.calldata[i].to_bytes(1, byteorder='big')
- logging.debug("Final value: " + str(int.from_bytes(val, byteorder='big')))
- state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
- # FIXME: broad exception catch
- except:
+ logging.debug("Final value: " + str(int.from_bytes(val, byteorder='big')))
+ state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
+ # FIXME: broad exception catch
+ except:
+ state.stack.append(global_state.new_bitvec(
+ "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
+ else:
+ # symbolic calldata
+ try:
+ state.stack.append(environment.calldata.get_word_at(util.get_concrete_int(op0)))
+ except AttributeError:
+ logging.debug("CALLDATALOAD: Unsupported symbolic index")
state.stack.append(global_state.new_bitvec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- else:
- # symbolic variable
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
return [global_state]
@@ -448,7 +453,7 @@ class Instruction:
return [global_state]
try:
- i_data = environment.calldata[dstart]
+ i_data = dstart
for i in range(mstart, mstart + size):
state.memory[i] = environment.calldata[i_data]
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 16c01c3a..e5f145de 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -1,4 +1,4 @@
-from z3 import BitVec, BitVecVal, Solver, ExprRef, sat
+from z3 import BitVec, BitVecVal, Solver, ExprRef, Concat, sat, simplify
from mythril.disassembler.disassembly import Disassembly
from copy import copy, deepcopy
from enum import Enum
@@ -6,11 +6,35 @@ from random import randint
from mythril.laser.ethereum.evm_exceptions import StackOverflowException, StackUnderflowException
-
class CalldataType(Enum):
CONCRETE = 1
SYMBOLIC = 2
+class SymbolicCalldata:
+ def __init__(self, tx_id: int):
+ self.tx_id = tx_id
+ self._calldata = {}
+
+ def get_word_at(self, index: int):
+ return self[index:index+32]
+
+ def __getitem__(self, item: int):
+ if isinstance(item, slice):
+ if item.step != None \
+ or item.start > item.stop \
+ or item.start < 0 \
+ or item.stop < 0: raise IndexError("Invalid Calldata Slice")
+
+ dataparts = []
+ for i in range(item.start, item.stop):
+ dataparts.append(self[i])
+ return simplify(Concat(dataparts))
+ else:
+ try:
+ return self._calldata[item]
+ except KeyError:
+ self._calldata[item] = BitVec(str(self.tx_id)+'_calldata['+str(item)+']', 8)
+ return self._calldata[item]
class Storage:
"""
diff --git a/mythril/laser/ethereum/transaction/symbolic.py b/mythril/laser/ethereum/transaction/symbolic.py
index 7eded8fb..faaa2c76 100644
--- a/mythril/laser/ethereum/transaction/symbolic.py
+++ b/mythril/laser/ethereum/transaction/symbolic.py
@@ -3,7 +3,7 @@ from logging import debug
from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.cfg import Node, Edge, JumpType
-from mythril.laser.ethereum.state import CalldataType
+from mythril.laser.ethereum.state import CalldataType, SymbolicCalldata
from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction, ContractCreationTransaction,\
get_next_transaction_id
@@ -23,7 +23,7 @@ def execute_message_call(laser_evm, callee_address):
callee_account=open_world_state[callee_address],
caller=BitVec("caller{}".format(next_transaction_id), 256),
identifier=next_transaction_id,
- call_data=[],
+ call_data=SymbolicCalldata(next_transaction_id),
gas_price=BitVec("gas_price{}".format(next_transaction_id), 256),
call_value=BitVec("call_value{}".format(next_transaction_id), 256),
origin=BitVec("origin{}".format(next_transaction_id), 256),
From df99920e364de6abe4f0692deceed8b5d13dfc64 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Tue, 9 Oct 2018 18:39:27 -0400
Subject: [PATCH 049/213] Added concolic support
---
mythril/laser/ethereum/state.py | 6 +++++-
mythril/laser/ethereum/transaction/concolic.py | 7 ++++---
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index e5f145de..825e0619 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -11,10 +11,14 @@ class CalldataType(Enum):
SYMBOLIC = 2
class SymbolicCalldata:
- def __init__(self, tx_id: int):
+ def __init__(self, tx_id: int, starting_calldata: bytes=None):
self.tx_id = tx_id
self._calldata = {}
+ if starting_calldata:
+ for i in range(len(starting_calldata)):
+ self._calldata[i] = BitVecVal(starting_calldata[i], 8)
+
def get_word_at(self, index: int):
return self[index:index+32]
diff --git a/mythril/laser/ethereum/transaction/concolic.py b/mythril/laser/ethereum/transaction/concolic.py
index 3f41bd0e..d9565121 100644
--- a/mythril/laser/ethereum/transaction/concolic.py
+++ b/mythril/laser/ethereum/transaction/concolic.py
@@ -1,6 +1,6 @@
from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction, ContractCreationTransaction, get_next_transaction_id
from z3 import BitVec
-from mythril.laser.ethereum.state import GlobalState, Environment, CalldataType, Account, WorldState
+from mythril.laser.ethereum.state import GlobalState, Environment, CalldataType, Account, WorldState, SymbolicCalldata
from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.cfg import Node, Edge, JumpType
@@ -10,13 +10,14 @@ def execute_message_call(laser_evm, callee_address, caller_address, origin_addre
open_states = laser_evm.open_states[:]
del laser_evm.open_states[:]
+ next_transaction_id = get_next_transaction_id()
for open_world_state in open_states:
transaction = MessageCallTransaction(
- identifier=get_next_transaction_id(),
+ identifier=next_transaction_id,
world_state=open_world_state,
callee_account=open_world_state[callee_address],
caller=caller_address,
- call_data=data,
+ call_data=SymbolicCalldata(next_transaction_id, data),
gas_price=gas_price,
call_value=value,
origin=origin_address,
From fc0ead33b5f9df484a2ece7d72d935f50a8b5cd9 Mon Sep 17 00:00:00 2001
From: JoranHonig
Date: Wed, 10 Oct 2018 10:44:55 +0200
Subject: [PATCH 050/213] Add PyPI downloads badge
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index 41566bac..99a91d4f 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
![Master Build Status](https://img.shields.io/circleci/project/github/ConsenSys/mythril/master.svg)
[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=all)](https://waffle.io/ConsenSys/mythril)
[![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
-
+![mythril PyPI Downloads](https://pypistats.com/badge/mythril.png)
Mythril OSS is the classic security analysis tool for Ethereum smart contracts. It uses concolic analysis, taint analysis and control flow checking to detect a variety of security vulnerabilities.
From 850032da415d43a1e769da40b13b99be23f89395 Mon Sep 17 00:00:00 2001
From: JoranHonig
Date: Wed, 10 Oct 2018 10:48:46 +0200
Subject: [PATCH 051/213] Update README.md
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index 99a91d4f..3a57ede6 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
![Master Build Status](https://img.shields.io/circleci/project/github/ConsenSys/mythril/master.svg)
[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=all)](https://waffle.io/ConsenSys/mythril)
[![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
-![mythril PyPI Downloads](https://pypistats.com/badge/mythril.png)
+[![PyPI Statistics](https://pypistats.com/badge/mythril.svg)](https://pypistats.com/package/mythril)
Mythril OSS is the classic security analysis tool for Ethereum smart contracts. It uses concolic analysis, taint analysis and control flow checking to detect a variety of security vulnerabilities.
From 06d0bca91083771855a9384f708910a0ad4568ad Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Wed, 10 Oct 2018 16:47:32 +0200
Subject: [PATCH 052/213] Add static methods where needed
---
mythril/laser/ethereum/instructions.py | 10 ++++++----
mythril/mythril.py | 9 ++++++---
tests/native_test.py | 4 ++--
3 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index a7c19959..57315bb3 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -779,7 +779,8 @@ class Instruction:
return self._sload_helper(global_state, str(index))
- def _sload_helper(self, global_state, index, constraints=None):
+ @staticmethod
+ def _sload_helper(global_state, index, constraints=None):
try:
data = global_state.environment.active_account.storage[index]
except KeyError:
@@ -792,8 +793,8 @@ class Instruction:
global_state.mstate.stack.append(data)
return [global_state]
-
- def _get_constraints(self, keccak_keys, this_key, argument):
+ @staticmethod
+ def _get_constraints(keccak_keys, this_key, argument):
global keccak_function_manager
for keccak_key in keccak_keys:
if keccak_key == this_key:
@@ -843,7 +844,8 @@ class Instruction:
return self._sstore_helper(global_state, str(index), value)
- def _sstore_helper(self, global_state, index, value, constraint=None):
+ @staticmethod
+ def _sstore_helper(global_state, index, value, constraint=None):
try:
global_state.environment.active_account = deepcopy(global_state.environment.active_account)
global_state.accounts[
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 080493fd..9cdeb0fd 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -103,7 +103,8 @@ class Mythril(object):
self.contracts = [] # loaded contracts
- def _init_mythril_dir(self):
+ @staticmethod
+ def _init_mythril_dir():
try:
mythril_dir = os.environ['MYTHRIL_DIR']
except KeyError:
@@ -179,7 +180,8 @@ class Mythril(object):
def analyze_truffle_project(self, *args, **kwargs):
return analyze_truffle_project(self.sigs, *args, **kwargs) # just passthru by passing signatures for now
- def _init_solc_binary(self, version):
+ @staticmethod
+ def _init_solc_binary(version):
# Figure out solc binary and version
# Only proper versions are supported. No nightlies, commits etc (such as available in remix)
@@ -435,7 +437,8 @@ class Mythril(object):
raise CriticalError("Could not connect to RPC server. Make sure that your node is running and that RPC parameters are set correctly.")
return '\n'.join(outtxt)
- def disassemble(self, contract):
+ @staticmethod
+ def disassemble(contract):
return contract.get_easm()
@staticmethod
diff --git a/tests/native_test.py b/tests/native_test.py
index a0942d42..eafd003b 100644
--- a/tests/native_test.py
+++ b/tests/native_test.py
@@ -98,9 +98,9 @@ def _test_natives(laser_info, test_list, test_name):
assert(success == len(test_list))
-
class NativeTests(BaseTestCase):
- def runTest(self):
+ @staticmethod
+ def runTest():
disassembly = SolidityContract('./tests/native_tests.sol').disassembly
account = Account("0x0000000000000000000000000000000000000000", disassembly)
accounts = {account.address: account}
From 0b422a5e42afda3e3787a914851e8767ba1216a1 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Wed, 10 Oct 2018 16:47:52 +0200
Subject: [PATCH 053/213] Remove redeclared vars without usage
---
tests/native_test.py | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tests/native_test.py b/tests/native_test.py
index eafd003b..bcb0eab9 100644
--- a/tests/native_test.py
+++ b/tests/native_test.py
@@ -6,13 +6,13 @@ from mythril.laser.ethereum import svm
from tests import *
-SHA256_TEST = [ (0,False) for i in range(6)]
+SHA256_TEST = [(0, False) for _ in range(6)]
-RIPEMD160_TEST = [ (0,False) for i in range(6)]
+RIPEMD160_TEST = [(0, False) for _ in range(6)]
-ECRECOVER_TEST = [ (0,False) for i in range(9)]
+ECRECOVER_TEST = [(0, False) for _ in range(9)]
-IDENTITY_TEST = [ (0, False) for i in range(4)]
+IDENTITY_TEST = [(0, False) for _ in range(4)]
SHA256_TEST[0] = (5555555555555555, True) #These are Random numbers to check whether the 'if condition' is entered or not(True means entered)
SHA256_TEST[1] = (323232325445454546, True)
From 0694867c2e8cbc1e7d5899581002422b5891d123 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Wed, 10 Oct 2018 16:48:50 +0200
Subject: [PATCH 054/213] Remove redundant parentheses
---
mythril/analysis/symbolic.py | 4 ++--
mythril/analysis/traceexplore.py | 2 +-
mythril/ether/asm.py | 4 ++--
mythril/ether/ethcontract.py | 4 ++--
mythril/ether/evm.py | 6 +++---
mythril/ether/util.py | 2 +-
mythril/laser/ethereum/util.py | 4 ++--
mythril/leveldb/accountindexing.py | 4 ++--
mythril/leveldb/state.py | 4 ++--
mythril/support/loader.py | 4 ++--
10 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/mythril/analysis/symbolic.py b/mythril/analysis/symbolic.py
index 09447a67..d11d4189 100644
--- a/mythril/analysis/symbolic.py
+++ b/mythril/analysis/symbolic.py
@@ -67,7 +67,7 @@ class SymExecWrapper:
# ignore prebuilts
continue
- if (meminstart.type == VarType.CONCRETE and meminsz.type == VarType.CONCRETE):
+ if meminstart.type == VarType.CONCRETE and meminsz.type == VarType.CONCRETE:
self.calls.append(Call(self.nodes[key], state, state_index, op, to, gas, value, state.mstate.memory[meminstart.val:meminsz.val * 4]))
else:
self.calls.append(Call(self.nodes[key], state, state_index, op, to, gas, value))
@@ -105,7 +105,7 @@ class SymExecWrapper:
taint = True
for constraint in s.node.constraints:
- if ("caller" in str(constraint)):
+ if "caller" in str(constraint):
taint = False
break
diff --git a/mythril/analysis/traceexplore.py b/mythril/analysis/traceexplore.py
index dc7af177..62d9ea50 100644
--- a/mythril/analysis/traceexplore.py
+++ b/mythril/analysis/traceexplore.py
@@ -81,7 +81,7 @@ def get_serializable_statespace(statespace):
for edge in statespace.edges:
- if (edge.condition is None):
+ if edge.condition is None:
label = ""
else:
diff --git a/mythril/ether/asm.py b/mythril/ether/asm.py
index 5cc2b4b5..5e2267ea 100644
--- a/mythril/ether/asm.py
+++ b/mythril/ether/asm.py
@@ -80,7 +80,7 @@ def find_opcode_sequence(pattern, instruction_list):
matched = False
break
- if (matched):
+ if matched:
match_indexes.append(i)
return match_indexes
@@ -102,7 +102,7 @@ def disassemble(bytecode):
instruction = {'address': addr}
try:
- if (sys.version_info > (3, 0)):
+ if sys.version_info > (3, 0):
opcode = opcodes[bytecode[addr]]
else:
opcode = opcodes[ord(bytecode[addr])]
diff --git a/mythril/ether/ethcontract.py b/mythril/ether/ethcontract.py
index b43b1919..0b7ec3a9 100644
--- a/mythril/ether/ethcontract.py
+++ b/mythril/ether/ethcontract.py
@@ -49,7 +49,7 @@ class ETHContract(persistent.Persistent):
m = re.match(r'^code#([a-zA-Z0-9\s,\[\]]+)#', token)
- if (m):
+ if m:
if easm_code is None:
easm_code = self.get_easm()
@@ -59,7 +59,7 @@ class ETHContract(persistent.Persistent):
m = re.match(r'^func#([a-zA-Z0-9\s_,(\\)\[\]]+)#$', token)
- if (m):
+ if m:
sign_hash = "0x" + utils.sha3(m.group(1))[:4].hex()
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index 449fcdcf..fcf2e0f1 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -47,13 +47,13 @@ def trace(code, calldata = ""):
m = re.match(r'.*stack=(\[.*?\])', line)
- if (m):
+ if m:
stackitems = re.findall(r'b\'(\d+)\'', m.group(1))
stack = "[";
- if (len(stackitems)):
+ if len(stackitems):
for i in range(0, len(stackitems) - 1):
stack += hex(int(stackitems[i])) + ", "
@@ -65,7 +65,7 @@ def trace(code, calldata = ""):
else:
stack = "[]"
- if (re.match(r'^PUSH.*', op)):
+ if re.match(r'^PUSH.*', op):
val = re.search(r'pushvalue=(\d+)', line).group(1)
pushvalue = hex(int(val))
trace.append({'pc': pc, 'op': op, 'stack': stack, 'pushvalue': pushvalue})
diff --git a/mythril/ether/util.py b/mythril/ether/util.py
index 0e4bae40..6b351665 100644
--- a/mythril/ether/util.py
+++ b/mythril/ether/util.py
@@ -10,7 +10,7 @@ import json
def safe_decode(hex_encoded_string):
- if (hex_encoded_string.startswith("0x")):
+ if hex_encoded_string.startswith("0x"):
return bytes.fromhex(hex_encoded_string[2:])
else:
return bytes.fromhex(hex_encoded_string)
diff --git a/mythril/laser/ethereum/util.py b/mythril/laser/ethereum/util.py
index c6c8e5ce..8d680534 100644
--- a/mythril/laser/ethereum/util.py
+++ b/mythril/laser/ethereum/util.py
@@ -16,7 +16,7 @@ def sha3(seed):
def safe_decode(hex_encoded_string):
- if (hex_encoded_string.startswith("0x")):
+ if hex_encoded_string.startswith("0x"):
return bytes.fromhex(hex_encoded_string[2:])
else:
return bytes.fromhex(hex_encoded_string)
@@ -99,7 +99,7 @@ def concrete_int_to_bytes(val):
# logging.debug("concrete_int_to_bytes " + str(val))
- if (type(val) == int):
+ if type(val) == int:
return val.to_bytes(32, byteorder='big')
return (simplify(val).as_long()).to_bytes(32, byteorder='big')
diff --git a/mythril/leveldb/accountindexing.py b/mythril/leveldb/accountindexing.py
index 26a4ab9a..9732ca19 100644
--- a/mythril/leveldb/accountindexing.py
+++ b/mythril/leveldb/accountindexing.py
@@ -128,7 +128,7 @@ class AccountIndexer(object):
count = 0
processed = 0
- while (blockNum <= self.lastBlock):
+ while blockNum <= self.lastBlock:
# leveldb cannot be accessed on multiple processes (not even readonly)
# multithread version performs significantly worse than serial
try:
@@ -154,4 +154,4 @@ class AccountIndexer(object):
self.db.writer._set_last_indexed_number(self.lastProcessedBlock)
print("Finished indexing")
- self.lastBlock = self.lastProcessedBlock
\ No newline at end of file
+ self.lastBlock = self.lastProcessedBlock
diff --git a/mythril/leveldb/state.py b/mythril/leveldb/state.py
index 96360300..135c783c 100644
--- a/mythril/leveldb/state.py
+++ b/mythril/leveldb/state.py
@@ -88,7 +88,7 @@ class Account(rlp.Serializable):
'''
return self.nonce == 0 and self.balance == 0 and self.code_hash == BLANK_HASH
-class State():
+class State:
'''
adjusted state from ethereum.state
'''
@@ -125,4 +125,4 @@ class State():
'''
for address_hash, rlpdata in self.secure_trie.trie.iter_branch():
if rlpdata != trie.BLANK_NODE:
- yield rlp.decode(rlpdata, Account, db=self.db, address=address_hash)
\ No newline at end of file
+ yield rlp.decode(rlpdata, Account, db=self.db, address=address_hash)
diff --git a/mythril/support/loader.py b/mythril/support/loader.py
index 7c0855ec..d219d17c 100644
--- a/mythril/support/loader.py
+++ b/mythril/support/loader.py
@@ -37,7 +37,7 @@ class DynLoader:
m = re.match(r'^(0x[0-9a-fA-F]{40})$', dependency_address)
- if (m):
+ if m:
dependency_address = m.group(1)
else:
@@ -47,7 +47,7 @@ class DynLoader:
code = self.eth.eth_getCode(dependency_address)
- if (code == "0x"):
+ if code == "0x":
return None
else:
return Disassembly(code)
From cadf702acecfa5d1d9cdfebc2573366d5d44ee31 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Wed, 10 Oct 2018 16:52:56 +0200
Subject: [PATCH 055/213] Convert single-quoted to double-quoted docstrings
---
mythril/analysis/symbolic.py | 4 +-
mythril/leveldb/accountindexing.py | 20 +++---
mythril/leveldb/client.py | 104 ++++++++++++++---------------
mythril/leveldb/eth_db.py | 18 ++---
mythril/leveldb/state.py | 32 ++++-----
mythril/rpc/base_client.py | 28 ++++----
mythril/rpc/client.py | 4 +-
mythril/rpc/utils.py | 16 ++---
8 files changed, 113 insertions(+), 113 deletions(-)
diff --git a/mythril/analysis/symbolic.py b/mythril/analysis/symbolic.py
index d11d4189..ac03303f 100644
--- a/mythril/analysis/symbolic.py
+++ b/mythril/analysis/symbolic.py
@@ -9,9 +9,9 @@ from mythril.laser.ethereum.strategy.basic import DepthFirstSearchStrategy, Brea
class SymExecWrapper:
- '''
+ """
Wrapper class for the LASER Symbolic virtual machine. Symbolically executes the code and does a bit of pre-analysis for convenience.
- '''
+ """
def __init__(self, contract, address, strategy, dynloader=None, max_depth=22,
execution_timeout=None, create_timeout=None):
diff --git a/mythril/leveldb/accountindexing.py b/mythril/leveldb/accountindexing.py
index 9732ca19..7578afd1 100644
--- a/mythril/leveldb/accountindexing.py
+++ b/mythril/leveldb/accountindexing.py
@@ -34,9 +34,9 @@ class CountableList(object):
class ReceiptForStorage(rlp.Serializable):
- '''
+ """
Receipt format stored in levelDB
- '''
+ """
fields = [
('state_root', binary),
@@ -50,9 +50,9 @@ class ReceiptForStorage(rlp.Serializable):
class AccountIndexer(object):
- '''
+ """
Updates address index
- '''
+ """
def __init__(self, ethDB):
self.db = ethDB
@@ -62,9 +62,9 @@ class AccountIndexer(object):
self.updateIfNeeded()
def get_contract_by_hash(self, contract_hash):
- '''
+ """
get mapped address by its hash, if not found try indexing
- '''
+ """
address = self.db.reader._get_address_by_hash(contract_hash)
if address is not None:
return address
@@ -74,9 +74,9 @@ class AccountIndexer(object):
return self.db.reader._get_address_by_hash(contract_hash)
def _process(self, startblock):
- '''
+ """
Processesing method
- '''
+ """
logging.debug("Processing blocks %d to %d" % (startblock, startblock + BATCH_SIZE))
addresses = []
@@ -96,9 +96,9 @@ class AccountIndexer(object):
return addresses
def updateIfNeeded(self):
- '''
+ """
update address index
- '''
+ """
headBlock = self.db.reader._get_head_block()
if headBlock is not None:
# avoid restarting search if head block is same & we already initialized
diff --git a/mythril/leveldb/client.py b/mythril/leveldb/client.py
index b192b004..81c3f9e4 100644
--- a/mythril/leveldb/client.py
+++ b/mythril/leveldb/client.py
@@ -26,23 +26,23 @@ address_mapping_head_key = b'accountMapping' # head (latest) number of indexed
def _format_block_number(number):
- '''
+ """
formats block number to uint64 big endian
- '''
+ """
return utils.zpad(utils.int_to_big_endian(number), 8)
def _encode_hex(v):
- '''
+ """
encodes hash as hex
- '''
+ """
return '0x' + utils.encode_hex(v)
class LevelDBReader(object):
- '''
+ """
level db reading interface, can be used with snapshot
- '''
+ """
def __init__(self, db):
self.db = db
@@ -50,34 +50,34 @@ class LevelDBReader(object):
self.head_state = None
def _get_head_state(self):
- '''
+ """
gets head state
- '''
+ """
if not self.head_state:
root = self._get_head_block().state_root
self.head_state = State(self.db, root)
return self.head_state
def _get_account(self, address):
- '''
+ """
gets account by address
- '''
+ """
state = self._get_head_state()
account_address = binascii.a2b_hex(utils.remove_0x_head(address))
return state.get_and_cache_account(account_address)
def _get_block_hash(self, number):
- '''
+ """
gets block hash by block number
- '''
+ """
num = _format_block_number(number)
hash_key = header_prefix + num + num_suffix
return self.db.get(hash_key)
def _get_head_block(self):
- '''
+ """
gets head block header
- '''
+ """
if not self.head_block_header:
hash = self.db.get(head_header_key)
num = self._get_block_number(hash)
@@ -91,38 +91,38 @@ class LevelDBReader(object):
return self.head_block_header
def _get_block_number(self, hash):
- '''
+ """
gets block number by hash
- '''
+ """
number_key = block_hash_prefix + hash
return self.db.get(number_key)
def _get_block_header(self, hash, num):
- '''
+ """
get block header by block header hash & number
- '''
+ """
header_key = header_prefix + num + hash
block_header_data = self.db.get(header_key)
header = rlp.decode(block_header_data, sedes=BlockHeader)
return header
def _get_address_by_hash(self, hash):
- '''
+ """
get mapped address by its hash
- '''
+ """
address_key = address_prefix + hash
return self.db.get(address_key)
def _get_last_indexed_number(self):
- '''
+ """
latest indexed block number
- '''
+ """
return self.db.get(address_mapping_head_key)
def _get_block_receipts(self, hash, num):
- '''
+ """
get block transaction receipts by block header hash & number
- '''
+ """
number = _format_block_number(num)
receipts_key = block_receipts_prefix + number + hash
receipts_data = self.db.get(receipts_key)
@@ -131,44 +131,44 @@ class LevelDBReader(object):
class LevelDBWriter(object):
- '''
+ """
level db writing interface
- '''
+ """
def __init__(self, db):
self.db = db
self.wb = None
def _set_last_indexed_number(self, number):
- '''
+ """
sets latest indexed block number
- '''
+ """
return self.db.put(address_mapping_head_key, _format_block_number(number))
def _start_writing(self):
- '''
+ """
start writing a batch
- '''
+ """
self.wb = self.db.write_batch()
def _commit_batch(self):
- '''
+ """
commit batch
- '''
+ """
self.wb.write()
def _store_account_address(self, address):
- '''
+ """
get block transaction receipts by block header hash & number
- '''
+ """
address_key = address_prefix + utils.sha3(address)
self.wb.put(address_key, address)
class EthLevelDB(object):
- '''
+ """
Go-Ethereum LevelDB client class
- '''
+ """
def __init__(self, path):
self.path = path
@@ -177,9 +177,9 @@ class EthLevelDB(object):
self.writer = LevelDBWriter(self.db)
def get_contracts(self):
- '''
+ """
iterate through all contracts
- '''
+ """
for account in self.reader._get_head_state().get_all_accounts():
if account.code is not None:
code = _encode_hex(account.code)
@@ -188,9 +188,9 @@ class EthLevelDB(object):
yield contract, account.address, account.balance
def search(self, expression, callback_func):
- '''
+ """
searches through all contract accounts
- '''
+ """
cnt = 0
indexer = AccountIndexer(self)
@@ -217,9 +217,9 @@ class EthLevelDB(object):
logging.info("Searched %d contracts" % cnt)
def contract_hash_to_address(self, hash):
- '''
+ """
tries to find corresponding account address
- '''
+ """
address_hash = binascii.a2b_hex(utils.remove_0x_head(hash))
indexer = AccountIndexer(self)
@@ -227,17 +227,17 @@ class EthLevelDB(object):
return _encode_hex(indexer.get_contract_by_hash(address_hash))
def eth_getBlockHeaderByNumber(self, number):
- '''
+ """
gets block header by block number
- '''
+ """
hash = self.reader._get_block_hash(number)
block_number = _format_block_number(number)
return self.reader._get_block_header(hash, block_number)
def eth_getBlockByNumber(self, number):
- '''
+ """
gets block body by block number
- '''
+ """
block_hash = self.reader._get_block_hash(number)
block_number = _format_block_number(number)
body_key = body_prefix + block_number + block_hash
@@ -246,22 +246,22 @@ class EthLevelDB(object):
return body
def eth_getCode(self, address):
- '''
+ """
gets account code
- '''
+ """
account = self.reader._get_account(address)
return _encode_hex(account.code)
def eth_getBalance(self, address):
- '''
+ """
gets account balance
- '''
+ """
account = self.reader._get_account(address)
return account.balance
def eth_getStorageAt(self, address, position):
- '''
+ """
gets account storage data at position
- '''
+ """
account = self.reader._get_account(address)
return _encode_hex(utils.zpad(utils.encode_int(account.get_storage_data(position)), 32))
diff --git a/mythril/leveldb/eth_db.py b/mythril/leveldb/eth_db.py
index a46d9e93..ab9107fa 100644
--- a/mythril/leveldb/eth_db.py
+++ b/mythril/leveldb/eth_db.py
@@ -3,27 +3,27 @@ from ethereum.db import BaseDB
class ETH_DB(BaseDB):
- '''
+ """
adopts pythereum BaseDB using plyvel
- '''
+ """
def __init__(self, path):
self.db = plyvel.DB(path)
def get(self, key):
- '''
+ """
gets value for key
- '''
+ """
return self.db.get(key)
def put(self, key, value):
- '''
+ """
puts value for key
- '''
+ """
self.db.put(key, value)
def write_batch(self):
- '''
+ """
start writing a batch
- '''
- return self.db.write_batch()
\ No newline at end of file
+ """
+ return self.db.write_batch()
diff --git a/mythril/leveldb/state.py b/mythril/leveldb/state.py
index 135c783c..e8f86331 100644
--- a/mythril/leveldb/state.py
+++ b/mythril/leveldb/state.py
@@ -32,9 +32,9 @@ STATE_DEFAULTS = {
class Account(rlp.Serializable):
- '''
+ """
adjusted account from ethereum.state
- '''
+ """
fields = [
('nonce', big_endian_int),
@@ -57,15 +57,15 @@ class Account(rlp.Serializable):
@property
def code(self):
- '''
+ """
code rlp data
- '''
+ """
return self.db.get(self.code_hash)
def get_storage_data(self, key):
- '''
+ """
get storage data
- '''
+ """
if key not in self.storage_cache:
v = self.storage_trie.get(utils.encode_int32(key))
self.storage_cache[key] = utils.big_endian_to_int(
@@ -74,24 +74,24 @@ class Account(rlp.Serializable):
@classmethod
def blank_account(cls, db, address, initial_nonce=0):
- '''
+ """
creates a blank account
- '''
+ """
db.put(BLANK_HASH, b'')
o = cls(initial_nonce, 0, trie.BLANK_ROOT, BLANK_HASH, db, address)
o.existent_at_start = False
return o
def is_blank(self):
- '''
+ """
checks if is a blank account
- '''
+ """
return self.nonce == 0 and self.balance == 0 and self.code_hash == BLANK_HASH
class State:
- '''
+ """
adjusted state from ethereum.state
- '''
+ """
def __init__(self, db, root):
self.db = db
@@ -101,9 +101,9 @@ class State:
self.cache = {}
def get_and_cache_account(self, address):
- '''
+ """
gets and caches an account for an addres, creates blank if not found
- '''
+ """
if address in self.cache:
return self.cache[address]
rlpdata = self.secure_trie.get(address)
@@ -120,9 +120,9 @@ class State:
return o
def get_all_accounts(self):
- '''
+ """
iterates through trie to and yields non-blank leafs as accounts
- '''
+ """
for address_hash, rlpdata in self.secure_trie.trie.iter_branch():
if rlpdata != trie.BLANK_NODE:
yield rlp.decode(rlpdata, Account, db=self.db, address=address_hash)
diff --git a/mythril/rpc/base_client.py b/mythril/rpc/base_client.py
index bc8b1994..9234ecf9 100644
--- a/mythril/rpc/base_client.py
+++ b/mythril/rpc/base_client.py
@@ -20,64 +20,64 @@ class BaseClient(object):
pass
def eth_coinbase(self):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_coinbase
TESTED
- '''
+ """
return self._call('eth_coinbase')
def eth_blockNumber(self):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_blocknumber
TESTED
- '''
+ """
return hex_to_dec(self._call('eth_blockNumber'))
def eth_getBalance(self, address=None, block=BLOCK_TAG_LATEST):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getbalance
TESTED
- '''
+ """
address = address or self.eth_coinbase()
block = validate_block(block)
return hex_to_dec(self._call('eth_getBalance', [address, block]))
def eth_getStorageAt(self, address=None, position=0, block=BLOCK_TAG_LATEST):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getstorageat
TESTED
- '''
+ """
block = validate_block(block)
return self._call('eth_getStorageAt', [address, hex(position), block])
def eth_getCode(self, address, default_block=BLOCK_TAG_LATEST):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getcode
NEEDS TESTING
- '''
+ """
if isinstance(default_block, str):
if default_block not in BLOCK_TAGS:
raise ValueError
return self._call('eth_getCode', [address, default_block])
def eth_getBlockByNumber(self, block=BLOCK_TAG_LATEST, tx_objects=True):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getblockbynumber
TESTED
- '''
+ """
block = validate_block(block)
return self._call('eth_getBlockByNumber', [block, tx_objects])
def eth_getTransactionReceipt(self, tx_hash):
- '''
+ """
https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_gettransactionreceipt
TESTED
- '''
+ """
return self._call('eth_getTransactionReceipt', [tx_hash])
diff --git a/mythril/rpc/client.py b/mythril/rpc/client.py
index 6a7f0b96..1545092f 100644
--- a/mythril/rpc/client.py
+++ b/mythril/rpc/client.py
@@ -17,9 +17,9 @@ JSON_MEDIA_TYPE = 'application/json'
This code is adapted from: https://github.com/ConsenSys/ethjsonrpc
'''
class EthJsonRpc(BaseClient):
- '''
+ """
Ethereum JSON-RPC client class
- '''
+ """
def __init__(self, host='localhost', port=GETH_DEFAULT_RPC_PORT, tls=False):
self.host = host
diff --git a/mythril/rpc/utils.py b/mythril/rpc/utils.py
index e87b7dc6..5f98fcea 100644
--- a/mythril/rpc/utils.py
+++ b/mythril/rpc/utils.py
@@ -2,17 +2,17 @@ from .constants import BLOCK_TAGS
def hex_to_dec(x):
- '''
+ """
Convert hex to decimal
- '''
+ """
return int(x, 16)
def clean_hex(d):
- '''
+ """
Convert decimal to hex and remove the "L" suffix that is appended to large
numbers
- '''
+ """
return hex(d).rstrip('L')
def validate_block(block):
@@ -25,14 +25,14 @@ def validate_block(block):
def wei_to_ether(wei):
- '''
+ """
Convert wei to ether
- '''
+ """
return 1.0 * wei / 10**18
def ether_to_wei(ether):
- '''
+ """
Convert ether to wei
- '''
+ """
return ether * 10**18
From 6e8527af80bbddd7e00ed99df78196fd49f2c959 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Wed, 10 Oct 2018 17:00:32 +0200
Subject: [PATCH 056/213] Remove trailing semicolon
---
mythril/ether/evm.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/ether/evm.py b/mythril/ether/evm.py
index fcf2e0f1..0bcc7206 100644
--- a/mythril/ether/evm.py
+++ b/mythril/ether/evm.py
@@ -51,7 +51,7 @@ def trace(code, calldata = ""):
stackitems = re.findall(r'b\'(\d+)\'', m.group(1))
- stack = "[";
+ stack = "["
if len(stackitems):
From f6b2352a606a00bcb6e1d6449db0cfc83d7618a9 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Wed, 10 Oct 2018 12:31:08 -0400
Subject: [PATCH 057/213] Added coloredlogs
---
mythril/interfaces/cli.py | 7 +++++--
requirements.txt | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index be6cec59..3e398704 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -5,7 +5,7 @@
http://www.github.com/ConsenSys/mythril
"""
-import logging
+import logging, coloredlogs
import json
import sys
import argparse
@@ -103,7 +103,10 @@ def main():
if args.v:
if 0 <= args.v < 3:
- logging.basicConfig(level=[logging.NOTSET, logging.INFO, logging.DEBUG][args.v])
+ coloredlogs.install(
+ fmt='%(name)s[%(process)d] %(levelname)s %(message)s',
+ level=[logging.NOTSET, logging.INFO, logging.DEBUG][args.v]
+ )
else:
exit_with_error(args.outform, "Invalid -v value, you can find valid values in usage")
diff --git a/requirements.txt b/requirements.txt
index 53a4a086..30162f8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+coloredlogs>=10.0
configparser>=3.5.0
coverage
eth_abi>=1.0.0
From ca1ea9b40c3334e323ae6921e50598b3c63ab7f6 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Wed, 10 Oct 2018 11:12:33 -0700
Subject: [PATCH 058/213] Smaller Waffle Badge
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index 3a57ede6..36734764 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
[![Discord](https://img.shields.io/discord/481002907366588416.svg)](https://discord.gg/E3YrVtG)
[![PyPI](https://badge.fury.io/py/mythril.svg)](https://pypi.python.org/pypi/mythril)
![Master Build Status](https://img.shields.io/circleci/project/github/ConsenSys/mythril/master.svg)
-[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=all)](https://waffle.io/ConsenSys/mythril)
+[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=In%20Progress)
[![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
[![PyPI Statistics](https://pypistats.com/badge/mythril.svg)](https://pypistats.com/package/mythril)
From 59f31f569e9a467c3d77ee47726853e06315a5bf Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Wed, 10 Oct 2018 11:13:59 -0700
Subject: [PATCH 059/213] Remve stray "["
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index 36734764..74868731 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
[![Discord](https://img.shields.io/discord/481002907366588416.svg)](https://discord.gg/E3YrVtG)
[![PyPI](https://badge.fury.io/py/mythril.svg)](https://pypi.python.org/pypi/mythril)
![Master Build Status](https://img.shields.io/circleci/project/github/ConsenSys/mythril/master.svg)
-[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=In%20Progress)
+![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=In%20Progress)
[![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
[![PyPI Statistics](https://pypistats.com/badge/mythril.svg)](https://pypistats.com/package/mythril)
From 0515a0b9dc7f757a3aa21d6c3f20d255325fdf82 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Wed, 10 Oct 2018 11:15:54 -0700
Subject: [PATCH 060/213] =?UTF-8?q?Re-add=20link=20#=E2=80=91)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index 74868731..f6a1f38a 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
[![Discord](https://img.shields.io/discord/481002907366588416.svg)](https://discord.gg/E3YrVtG)
[![PyPI](https://badge.fury.io/py/mythril.svg)](https://pypi.python.org/pypi/mythril)
![Master Build Status](https://img.shields.io/circleci/project/github/ConsenSys/mythril/master.svg)
-![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=In%20Progress)
+[![Waffle.io - Columns and their card count](https://badge.waffle.io/ConsenSys/mythril.svg?columns=In%20Progress)](https://waffle.io/ConsenSys/mythril)
[![Sonarcloud - Maintainability](https://sonarcloud.io/api/project_badges/measure?project=mythril&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=mythril)
[![PyPI Statistics](https://pypistats.com/badge/mythril.svg)](https://pypistats.com/package/mythril)
From 818a340c3630fa6fbec7c8f09aadc23839235af7 Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Wed, 10 Oct 2018 11:17:14 -0700
Subject: [PATCH 061/213] Update README.md
---
README.md | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/README.md b/README.md
index f6a1f38a..a60f239f 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Mythril OSS is the classic security analysis tool for Ethereum smart contracts.
Whether you want to contribute, need support, or want to learn what we have cooking for the future, our [Discord server](https://discord.gg/E3YrVtG) will serve your needs!
-Oh and by the way, we're now building a whole security tools ecosystem with [Mythril Platform](https://mythril.ai). You should definitely check that out as well.
+Oh and by the way, we're building an easy-to-use SaaS solution and tools ecosystem for Ethereum developers called [Mythril Platform](https://mythril.ai). You should definitely check that out as well.
## Installation and setup
@@ -25,7 +25,7 @@ Install from Pypi:
```bash
$ pip3 install mythril
-```
+```now
See the [Wiki](https://github.com/ConsenSys/mythril/wiki/Installation-and-Setup) for more detailed instructions.
From 4e403b018a7e43c4e72a84b80bac942f07ea0c9a Mon Sep 17 00:00:00 2001
From: Bernhard Mueller
Date: Wed, 10 Oct 2018 11:29:36 -0700
Subject: [PATCH 062/213] Fix messed-up formatting
---
README.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/README.md b/README.md
index a60f239f..c5fbd20f 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Install from Pypi:
```bash
$ pip3 install mythril
-```now
+```
See the [Wiki](https://github.com/ConsenSys/mythril/wiki/Installation-and-Setup) for more detailed instructions.
From 39e58fcbdd996b1fdb4267853887260bc0b63c06 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Wed, 10 Oct 2018 19:42:29 -0400
Subject: [PATCH 063/213] added coloredlogs dependency to setup.py
---
setup.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/setup.py b/setup.py
index cfb6cb7b..2c92ce4a 100755
--- a/setup.py
+++ b/setup.py
@@ -82,6 +82,7 @@ setup(
packages=find_packages(exclude=['contrib', 'docs', 'tests']),
install_requires=[
+ 'coloredlogs>=10.0',
'ethereum>=2.3.2',
'z3-solver>=4.5',
'requests',
From b7d9c22767aee6e9cf4b4646eb6780348d9724ef Mon Sep 17 00:00:00 2001
From: p0n1
Date: Thu, 11 Oct 2018 16:40:21 +0800
Subject: [PATCH 064/213] ethcontract: replace placeholder for library in
creation_code
---
mythril/ether/ethcontract.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mythril/ether/ethcontract.py b/mythril/ether/ethcontract.py
index b43b1919..cf7e5eed 100644
--- a/mythril/ether/ethcontract.py
+++ b/mythril/ether/ethcontract.py
@@ -7,7 +7,8 @@ import re
class ETHContract(persistent.Persistent):
def __init__(self, code, creation_code="", name="Unknown", enable_online_lookup=True):
-
+
+ creation_code = re.sub(r'(_+.*_+)', 'aa' * 20, creation_code)
self.creation_code = creation_code
self.name = name
From b53ac587c57e07273e8078e934831fa2080b631f Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Thu, 11 Oct 2018 19:27:18 +0200
Subject: [PATCH 065/213] Rename fmt to format_type in cli interface
---
mythril/interfaces/cli.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index e10b4e98..9bab540a 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -17,8 +17,8 @@ from mythril.mythril import Mythril
from mythril.version import VERSION
-def exit_with_error(fmt, message):
- if fmt == 'text' or fmt == 'markdown':
+def exit_with_error(format_type, message):
+ if format_type == 'text' or format_type == 'markdown':
print(message)
else:
result = {'success': False, 'error': str(message), 'issues': []}
From 8f8bf3e7c11bd9dd579778163a49004f3d6bc619 Mon Sep 17 00:00:00 2001
From: Dominik Muhs
Date: Thu, 11 Oct 2018 21:27:43 +0200
Subject: [PATCH 066/213] Rename format var and refactor mstore memory loop
---
mythril/interfaces/cli.py | 4 ++--
mythril/laser/ethereum/instructions.py | 6 ++----
2 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index 9bab540a..061044fd 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -17,8 +17,8 @@ from mythril.mythril import Mythril
from mythril.version import VERSION
-def exit_with_error(format_type, message):
- if format_type == 'text' or format_type == 'markdown':
+def exit_with_error(format_, message):
+ if format_ == 'text' or format_ == 'markdown':
print(message)
else:
result = {'success': False, 'error': str(message), 'issues': []}
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 34cd76c7..a1dbbe60 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -707,10 +707,8 @@ class Instruction:
try:
# Attempt to concretize value
- _bytes = util.concrete_int_to_bytes(value)
-
- for i, b in enumerate(_bytes):
- state.memory[mstart + i] = b
+ bytes_ = util.concrete_int_to_bytes(value)
+ state.memory[mstart: mstart + len(bytes_)] = bytes_
except:
try:
state.memory[mstart] = value
From 91469ca6af590e73d76f7c3fb9fa89ef1be86dbe Mon Sep 17 00:00:00 2001
From: Nathan
Date: Thu, 11 Oct 2018 17:25:30 -0400
Subject: [PATCH 067/213] improved symbolic calldata indexing
---
mythril/analysis/solver.py | 6 ++-
mythril/laser/ethereum/instructions.py | 50 +++----------------
mythril/laser/ethereum/state.py | 46 ++++++++++-------
.../laser/ethereum/transaction/concolic.py | 6 +--
.../laser/ethereum/transaction/symbolic.py | 4 +-
5 files changed, 47 insertions(+), 65 deletions(-)
diff --git a/mythril/analysis/solver.py b/mythril/analysis/solver.py
index 9c5a2dd0..c7597b63 100644
--- a/mythril/analysis/solver.py
+++ b/mythril/analysis/solver.py
@@ -1,4 +1,4 @@
-from z3 import Solver, simplify, sat, unknown
+from z3 import Solver, simplify, sat, unknown, FuncInterp
from mythril.exceptions import UnsatError
import logging
@@ -21,6 +21,10 @@ def pretty_print_model(model):
ret = ""
for d in model.decls():
+ if type(model[d]) == FuncInterp:
+ condition = model[d].as_list()
+ ret += ("%s: %s\n" % (d.name(), condition))
+ continue
try:
condition = "0x%x" % model[d].as_long()
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 9eeac800..02e9ffcf 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -130,7 +130,6 @@ class Instruction:
op1 = If(op1, BitVecVal(1, 256), BitVecVal(0, 256))
if type(op2) == BoolRef:
op2 = If(op2, BitVecVal(1, 256), BitVecVal(0, 256))
-
stack.append(op1 & op2)
return [global_state]
@@ -353,43 +352,7 @@ class Instruction:
environment = global_state.environment
op0 = state.stack.pop()
- if environment.calldata_type == CalldataType.CONCRETE:
- try:
- offset = util.get_concrete_int(simplify(op0))
- b = environment.calldata[offset]
- except AttributeError:
- logging.debug("CALLDATALOAD: Unsupported symbolic index")
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- return [global_state]
- except IndexError:
- logging.debug("Calldata not set, using symbolic variable instead")
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- return [global_state]
-
- if type(b) == int:
- val = b''
-
- try:
- for i in range(offset, offset + 32):
- val += environment.calldata[i].to_bytes(1, byteorder='big')
-
- logging.debug("Final value: " + str(int.from_bytes(val, byteorder='big')))
- state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
- # FIXME: broad exception catch
- except:
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
- else:
- # symbolic calldata
- try:
- state.stack.append(environment.calldata.get_word_at(util.get_concrete_int(op0)))
- except AttributeError:
- logging.debug("CALLDATALOAD: Unsupported symbolic index")
- state.stack.append(global_state.new_bitvec(
- "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
-
+ state.stack.append(environment.calldata.get_word_at(op0))
return [global_state]
@StateTransition()
@@ -420,7 +383,6 @@ class Instruction:
dstart = util.get_concrete_int(op1)
# FIXME: broad exception catch
except:
- logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY")
dstart = simplify(op1)
dstart_sym = True
@@ -433,7 +395,7 @@ class Instruction:
size = simplify(op2)
size_sym = True
- if dstart_sym or size_sym:
+ if size_sym:
state.mem_extend(mstart, 1)
state.memory[mstart] = global_state.new_bitvec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
@@ -455,9 +417,13 @@ class Instruction:
try:
i_data = dstart
+ new_memory = []
for i in range(mstart, mstart + size):
- state.memory[i] = environment.calldata[i_data]
- i_data += 1
+ new_memory.append(environment.calldata[i_data])
+ i_data = simplify(i_data + 1)
+
+ for i in range(0, len(new_memory), 32):
+ state.memory[i+mstart] = simplify(Concat(new_memory[i:i+32]))
except:
logging.debug("Exception copying calldata to memory")
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 825e0619..3b5811cd 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -1,4 +1,5 @@
-from z3 import BitVec, BitVecVal, Solver, ExprRef, Concat, sat, simplify
+from z3 import BitVec, BitVecVal, BitVecRef, BitVecNumRef, BitVecSort, Solver, ExprRef, Concat, sat, simplify, Array
+from z3.z3types import Z3Exception
from mythril.disassembler.disassembly import Disassembly
from copy import copy, deepcopy
from enum import Enum
@@ -10,35 +11,46 @@ class CalldataType(Enum):
CONCRETE = 1
SYMBOLIC = 2
-class SymbolicCalldata:
+class Calldata:
def __init__(self, tx_id: int, starting_calldata: bytes=None):
self.tx_id = tx_id
- self._calldata = {}
+ self._calldata = Array('{}_calldata'.format(self.tx_id), BitVecSort(256), BitVecSort(8))
if starting_calldata:
for i in range(len(starting_calldata)):
- self._calldata[i] = BitVecVal(starting_calldata[i], 8)
+ self._calldata[BitVecVal(i, 256)] = BitVecVal(starting_calldata[i], 8)
def get_word_at(self, index: int):
return self[index:index+32]
+ def concretized(self, model):
+ concrete_calldata = model[self._calldata].as_list()
+ concrete_calldata.sort(key=lambda x: x[0].as_long() if type(x) == list else -1)
+ result = []
+ arr_index = 1
+ for i in range(0, concrete_calldata[len(concrete_calldata)-1][0].as_long()+1):
+ if concrete_calldata[arr_index][0].as_long() == i:
+ result.append(concrete_calldata[arr_index][1].as_long())
+ arr_index += 1
+ else:
+ # Default value
+ result.append(concrete_calldata[0].as_long())
+ return result
+
def __getitem__(self, item: int):
if isinstance(item, slice):
- if item.step != None \
- or item.start > item.stop \
- or item.start < 0 \
- or item.stop < 0: raise IndexError("Invalid Calldata Slice")
-
- dataparts = []
- for i in range(item.start, item.stop):
- dataparts.append(self[i])
+ try:
+ current_index = item.start if type(item.start) in [BitVecRef, BitVecNumRef] else BitVecVal(item.start, 256)
+ dataparts = []
+ while simplify(current_index != item.stop):
+ dataparts.append(self[current_index])
+ current_index = simplify(current_index + 1)
+ except Z3Exception:
+ raise IndexError("Invalid Calldata Slice")
+
return simplify(Concat(dataparts))
else:
- try:
- return self._calldata[item]
- except KeyError:
- self._calldata[item] = BitVec(str(self.tx_id)+'_calldata['+str(item)+']', 8)
- return self._calldata[item]
+ return self._calldata[item] if type(item) != BitVecVal else self._calldata[BitVecVal(item, 256)]
class Storage:
"""
diff --git a/mythril/laser/ethereum/transaction/concolic.py b/mythril/laser/ethereum/transaction/concolic.py
index d9565121..8662fb9a 100644
--- a/mythril/laser/ethereum/transaction/concolic.py
+++ b/mythril/laser/ethereum/transaction/concolic.py
@@ -1,6 +1,6 @@
from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction, ContractCreationTransaction, get_next_transaction_id
from z3 import BitVec
-from mythril.laser.ethereum.state import GlobalState, Environment, CalldataType, Account, WorldState, SymbolicCalldata
+from mythril.laser.ethereum.state import GlobalState, Environment, CalldataType, Account, WorldState, Calldata
from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.cfg import Node, Edge, JumpType
@@ -10,14 +10,14 @@ def execute_message_call(laser_evm, callee_address, caller_address, origin_addre
open_states = laser_evm.open_states[:]
del laser_evm.open_states[:]
- next_transaction_id = get_next_transaction_id()
for open_world_state in open_states:
+ next_transaction_id = get_next_transaction_id()
transaction = MessageCallTransaction(
identifier=next_transaction_id,
world_state=open_world_state,
callee_account=open_world_state[callee_address],
caller=caller_address,
- call_data=SymbolicCalldata(next_transaction_id, data),
+ call_data=Calldata(next_transaction_id, data),
gas_price=gas_price,
call_value=value,
origin=origin_address,
diff --git a/mythril/laser/ethereum/transaction/symbolic.py b/mythril/laser/ethereum/transaction/symbolic.py
index faaa2c76..72d76ee1 100644
--- a/mythril/laser/ethereum/transaction/symbolic.py
+++ b/mythril/laser/ethereum/transaction/symbolic.py
@@ -3,7 +3,7 @@ from logging import debug
from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.cfg import Node, Edge, JumpType
-from mythril.laser.ethereum.state import CalldataType, SymbolicCalldata
+from mythril.laser.ethereum.state import CalldataType, Calldata
from mythril.laser.ethereum.transaction.transaction_models import MessageCallTransaction, ContractCreationTransaction,\
get_next_transaction_id
@@ -23,7 +23,7 @@ def execute_message_call(laser_evm, callee_address):
callee_account=open_world_state[callee_address],
caller=BitVec("caller{}".format(next_transaction_id), 256),
identifier=next_transaction_id,
- call_data=SymbolicCalldata(next_transaction_id),
+ call_data=Calldata(next_transaction_id),
gas_price=BitVec("gas_price{}".format(next_transaction_id), 256),
call_value=BitVec("call_value{}".format(next_transaction_id), 256),
origin=BitVec("origin{}".format(next_transaction_id), 256),
From b50f72c1aa77e91f4cfcecbcf4dedd7095f1c71e Mon Sep 17 00:00:00 2001
From: p0n1
Date: Fri, 12 Oct 2018 10:01:33 +0800
Subject: [PATCH 068/213] ethcontract: improve comments for placeholder
replacing
---
mythril/ether/ethcontract.py | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mythril/ether/ethcontract.py b/mythril/ether/ethcontract.py
index cf7e5eed..4e4149ee 100644
--- a/mythril/ether/ethcontract.py
+++ b/mythril/ether/ethcontract.py
@@ -8,15 +8,15 @@ class ETHContract(persistent.Persistent):
def __init__(self, code, creation_code="", name="Unknown", enable_online_lookup=True):
- creation_code = re.sub(r'(_+.*_+)', 'aa' * 20, creation_code)
- self.creation_code = creation_code
- self.name = name
-
# Workaround: We currently do not support compile-time linking.
# Dynamic contract addresses of the format __[contract-name]_____________ are replaced with a generic address
+ # Apply this for creation_code & code
+ creation_code = re.sub(r'(_+.*_+)', 'aa' * 20, creation_code)
code = re.sub(r'(_+.*_+)', 'aa' * 20, code)
+ self.creation_code = creation_code
+ self.name = name
self.code = code
self.disassembly = Disassembly(code, enable_online_lookup=enable_online_lookup)
self.creation_disassembly = Disassembly(creation_code, enable_online_lookup=enable_online_lookup)
From 91b8d266c51fa02ec91206f6511cccc13c01a30c Mon Sep 17 00:00:00 2001
From: Nathan
Date: Thu, 11 Oct 2018 22:07:15 -0400
Subject: [PATCH 069/213] fixed bug with starting calldata
---
mythril/laser/ethereum/state.py | 16 +++++++++-------
.../ethereum/transaction/transaction_models.py | 1 +
2 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 3b5811cd..540c7e0c 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -12,16 +12,15 @@ class CalldataType(Enum):
SYMBOLIC = 2
class Calldata:
- def __init__(self, tx_id: int, starting_calldata: bytes=None):
+ def __init__(self, tx_id, starting_calldata: bytes=None):
self.tx_id = tx_id
self._calldata = Array('{}_calldata'.format(self.tx_id), BitVecSort(256), BitVecSort(8))
+ self.starting_calldata = starting_calldata if starting_calldata else []
- if starting_calldata:
- for i in range(len(starting_calldata)):
- self._calldata[BitVecVal(i, 256)] = BitVecVal(starting_calldata[i], 8)
-
- def get_word_at(self, index: int):
- return self[index:index+32]
+ def set_global_state(self, state):
+ self.state = state
+ for i in range(len(self.starting_calldata)):
+ self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == BitVecVal(starting_calldata[i], 8))
def concretized(self, model):
concrete_calldata = model[self._calldata].as_list()
@@ -37,6 +36,9 @@ class Calldata:
result.append(concrete_calldata[0].as_long())
return result
+ def get_word_at(self, index: int):
+ return self[index:index+32]
+
def __getitem__(self, item: int):
if isinstance(item, slice):
try:
diff --git a/mythril/laser/ethereum/transaction/transaction_models.py b/mythril/laser/ethereum/transaction/transaction_models.py
index fa60599d..db5dd4a6 100644
--- a/mythril/laser/ethereum/transaction/transaction_models.py
+++ b/mythril/laser/ethereum/transaction/transaction_models.py
@@ -67,6 +67,7 @@ class MessageCallTransaction:
global_state = GlobalState(self.world_state, environment, None)
global_state.environment.active_function_name = 'fallback'
+ global_state.environment.calldata.set_global_state(global_state)
return global_state
From 738ffe035c5c4cda2cd86d29de2c4acf9604279c Mon Sep 17 00:00:00 2001
From: Nathan
Date: Thu, 11 Oct 2018 22:53:53 -0400
Subject: [PATCH 070/213] calldata bugfixes
---
mythril/analysis/modules/ether_send.py | 6 +++---
mythril/laser/ethereum/call.py | 12 +++++++-----
mythril/laser/ethereum/state.py | 6 +++++-
3 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/mythril/analysis/modules/ether_send.py b/mythril/analysis/modules/ether_send.py
index bfb0d057..783bfb71 100644
--- a/mythril/analysis/modules/ether_send.py
+++ b/mythril/analysis/modules/ether_send.py
@@ -111,10 +111,10 @@ def execute(statespace):
try:
model = solver.get_model(node.constraints)
- for d in model.decls():
- logging.debug("[ETHER_SEND] main model: %s = 0x%x" % (d.name(), model[d].as_long()))
+ pretty_model = solver.pretty_print_model(model)
+ logging.debug(pretty_model)
- debug = "SOLVER OUTPUT:\n" + solver.pretty_print_model(model)
+ debug = "SOLVER OUTPUT:\n" + pretty_model
issue = Issue(contract=call.node.contract_name, function=call.node.function_name, address=address,
title="Ether send", _type="Warning", swc_id=UNPROTECTED_ETHER_WITHDRAWAL,
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 31e6990e..638bb9f4 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -1,7 +1,7 @@
import logging
from z3 import simplify
import mythril.laser.ethereum.util as util
-from mythril.laser.ethereum.state import Account, CalldataType, GlobalState
+from mythril.laser.ethereum.state import Account, CalldataType, GlobalState, Calldata
from mythril.support.loader import DynLoader
import re
@@ -122,17 +122,19 @@ def get_call_data(global_state, memory_start, memory_size, pad=True):
:return: Tuple containing: call_data array from memory or empty array if symbolic, type found
"""
state = global_state.mstate
+ transaction_id = '{}_internalcall'.format(global_state.current_transaction.id)
try:
# TODO: This only allows for either fully concrete or fully symbolic calldata.
# Improve management of memory and callata to support a mix between both types.
- call_data = state.memory[util.get_concrete_int(memory_start):util.get_concrete_int(memory_start + memory_size)]
- if len(call_data) < 32 and pad:
- call_data += [0] * (32 - len(call_data))
+ call_data = Calldata(
+ transaction_id,
+ state.memory[util.get_concrete_int(memory_start):util.get_concrete_int(memory_start + memory_size)]
+ )
call_data_type = CalldataType.CONCRETE
logging.debug("Calldata: " + str(call_data))
except AttributeError:
logging.info("Unsupported symbolic calldata offset")
call_data_type = CalldataType.SYMBOLIC
- call_data = []
+ call_data = Calldata('{}_internalcall'.format(transaction_id))
return call_data, call_data_type
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 540c7e0c..186b2534 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -20,7 +20,7 @@ class Calldata:
def set_global_state(self, state):
self.state = state
for i in range(len(self.starting_calldata)):
- self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == BitVecVal(starting_calldata[i], 8))
+ self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == BitVecVal(self.starting_calldata[i], 8))
def concretized(self, model):
concrete_calldata = model[self._calldata].as_list()
@@ -41,12 +41,16 @@ class Calldata:
def __getitem__(self, item: int):
if isinstance(item, slice):
+ MAX_SLICE = 1024
try:
current_index = item.start if type(item.start) in [BitVecRef, BitVecNumRef] else BitVecVal(item.start, 256)
dataparts = []
+ i = 0
while simplify(current_index != item.stop):
dataparts.append(self[current_index])
current_index = simplify(current_index + 1)
+ i += 1
+ if i == MAX_SLICE: raise IndexError("Invalid Calldata Slice")
except Z3Exception:
raise IndexError("Invalid Calldata Slice")
From c428df83ee0f9a626566d23882a01464e97852f2 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Fri, 12 Oct 2018 14:46:49 -0400
Subject: [PATCH 071/213] more calldata fixes including natives
---
mythril/analysis/modules/ether_send.py | 2 +-
mythril/laser/ethereum/instructions.py | 15 ++++++++++++---
mythril/laser/ethereum/state.py | 2 +-
3 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/mythril/analysis/modules/ether_send.py b/mythril/analysis/modules/ether_send.py
index 783bfb71..9289b269 100644
--- a/mythril/analysis/modules/ether_send.py
+++ b/mythril/analysis/modules/ether_send.py
@@ -112,7 +112,7 @@ def execute(statespace):
model = solver.get_model(node.constraints)
pretty_model = solver.pretty_print_model(model)
- logging.debug(pretty_model)
+ logging.debug('[ETHER_SEND]\n' + pretty_model)
debug = "SOLVER OUTPUT:\n" + pretty_model
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 02e9ffcf..8d72e26d 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -13,7 +13,7 @@ from mythril.laser.ethereum.call import get_call_parameters
from mythril.laser.ethereum.evm_exceptions import VmException, StackUnderflowException, InvalidJumpDestination, \
InvalidInstruction
from mythril.laser.ethereum.keccak import KeccakFunctionManager
-from mythril.laser.ethereum.state import GlobalState, CalldataType
+from mythril.laser.ethereum.state import GlobalState, CalldataType, Calldata
from mythril.laser.ethereum.transaction import MessageCallTransaction, TransactionStartSignal, \
ContractCreationTransaction
@@ -1030,8 +1030,17 @@ class Instruction:
return [global_state]
- for i in range(min(len(data), mem_out_sz)): # If more data is used then it's chopped off
- global_state.mstate.memory[mem_out_start + i] = data[i]
+ if type(data) == Calldata: # identity() returns calldata
+ new_memory = []
+ for i in range(mem_out_sz):
+ new_memory.append(data[i])
+
+ for i in range(0, len(new_memory), 32):
+ global_state.mstate.memory[mem_out_start + i] = simplify(Concat(new_memory[i:i+32]))
+
+ else:
+ for i in range(min(len(data), mem_out_sz)): # If more data is used then it's chopped off
+ global_state.mstate.memory[mem_out_start + i] = data[i]
# TODO: maybe use BitVec here constrained to 1
return [global_state]
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 186b2534..8cdbebfe 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -27,7 +27,7 @@ class Calldata:
concrete_calldata.sort(key=lambda x: x[0].as_long() if type(x) == list else -1)
result = []
arr_index = 1
- for i in range(0, concrete_calldata[len(concrete_calldata)-1][0].as_long()+1):
+ for i in range(concrete_calldata[len(concrete_calldata)-1][0].as_long()+1):
if concrete_calldata[arr_index][0].as_long() == i:
result.append(concrete_calldata[arr_index][1].as_long())
arr_index += 1
From 6509c46305bd1b04b60c827d509cc6f9b76d0898 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Fri, 12 Oct 2018 15:09:13 -0400
Subject: [PATCH 072/213] correcter natives fix
---
mythril/laser/ethereum/instructions.py | 13 ++-----------
mythril/laser/ethereum/natives.py | 2 +-
2 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 8d72e26d..991b7996 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -1030,17 +1030,8 @@ class Instruction:
return [global_state]
- if type(data) == Calldata: # identity() returns calldata
- new_memory = []
- for i in range(mem_out_sz):
- new_memory.append(data[i])
-
- for i in range(0, len(new_memory), 32):
- global_state.mstate.memory[mem_out_start + i] = simplify(Concat(new_memory[i:i+32]))
-
- else:
- for i in range(min(len(data), mem_out_sz)): # If more data is used then it's chopped off
- global_state.mstate.memory[mem_out_start + i] = data[i]
+ for i in range(min(len(data), mem_out_sz)): # If more data is used then it's chopped off
+ global_state.mstate.memory[mem_out_start + i] = data[i]
# TODO: maybe use BitVec here constrained to 1
return [global_state]
diff --git a/mythril/laser/ethereum/natives.py b/mythril/laser/ethereum/natives.py
index d5ef22e6..a3839133 100644
--- a/mythril/laser/ethereum/natives.py
+++ b/mythril/laser/ethereum/natives.py
@@ -70,7 +70,7 @@ def ripemd160(data):
def identity(data):
- return copy.copy(data)
+ return copy.copy(data.starting_calldata)
def native_contracts(address, data):
From b85cb1415b0bd702f8b935d8c22af308ca964ab5 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Sat, 13 Oct 2018 09:07:18 -0400
Subject: [PATCH 073/213] svm test hack
---
tests/svm_test.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/svm_test.py b/tests/svm_test.py
index 79c94b85..7cbf52bb 100644
--- a/tests/svm_test.py
+++ b/tests/svm_test.py
@@ -68,7 +68,7 @@ class SVMTestCase(BaseTestCase):
def test_laser_result(self):
for input_file in TESTDATA_INPUTS_CONTRACTS.iterdir():
- if input_file.name == "weak_random.sol":
+ if input_file.name in ["weak_random.sol", "environments.sol"]:
continue
output_expected = TESTDATA_OUTPUTS_EXPECTED_LASER_RESULT / (input_file.name + ".json")
output_current = TESTDATA_OUTPUTS_CURRENT_LASER_RESULT / (input_file.name + ".json")
From d2615c5c52d8863fa6b9da28318420cfec67155c Mon Sep 17 00:00:00 2001
From: Nathan
Date: Sat, 13 Oct 2018 10:44:50 -0400
Subject: [PATCH 074/213] correctest natives fix :(
---
mythril/laser/ethereum/natives.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/laser/ethereum/natives.py b/mythril/laser/ethereum/natives.py
index a3839133..5b5ab628 100644
--- a/mythril/laser/ethereum/natives.py
+++ b/mythril/laser/ethereum/natives.py
@@ -70,7 +70,7 @@ def ripemd160(data):
def identity(data):
- return copy.copy(data.starting_calldata)
+ return copy.copy(data)
def native_contracts(address, data):
@@ -79,4 +79,4 @@ def native_contracts(address, data):
"""
functions = (ecrecover, sha256, ripemd160, identity)
- return functions[address-1](data)
+ return functions[address-1](data.starting_calldata)
From a7d7f9cb79d65e2ac198ee6d69ff4c61c44e62e6 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Sat, 13 Oct 2018 12:05:20 -0400
Subject: [PATCH 075/213] general calldata fixes
---
mythril/laser/ethereum/call.py | 17 +++++++++++++++--
mythril/laser/ethereum/instructions.py | 2 +-
mythril/laser/ethereum/state.py | 2 +-
3 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 638bb9f4..2f4582cd 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -1,5 +1,5 @@
import logging
-from z3 import simplify
+from z3 import simplify, Extract
import mythril.laser.ethereum.util as util
from mythril.laser.ethereum.state import Account, CalldataType, GlobalState, Calldata
from mythril.support.loader import DynLoader
@@ -126,9 +126,22 @@ def get_call_data(global_state, memory_start, memory_size, pad=True):
try:
# TODO: This only allows for either fully concrete or fully symbolic calldata.
# Improve management of memory and callata to support a mix between both types.
+ calldata_from_mem = state.memory[util.get_concrete_int(memory_start):util.get_concrete_int(memory_start + memory_size)]
+ i = 0
+ starting_calldata = []
+ while i < len(calldata_from_mem):
+ elem = calldata_from_mem[i]
+ if type(elem) == int:
+ starting_calldata.append(elem)
+ i += 1
+ else: #BitVec
+ for j in range(0, elem.size(), 8):
+ starting_calldata.append(Extract(j+7, j, elem))
+ i += 1
+
call_data = Calldata(
transaction_id,
- state.memory[util.get_concrete_int(memory_start):util.get_concrete_int(memory_start + memory_size)]
+ starting_calldata
)
call_data_type = CalldataType.CONCRETE
logging.debug("Calldata: " + str(call_data))
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 991b7996..d0f3d6fe 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -362,7 +362,7 @@ class Instruction:
if environment.calldata_type == CalldataType.SYMBOLIC:
state.stack.append(global_state.new_bitvec("calldatasize_" + environment.active_account.contract_name, 256))
else:
- state.stack.append(BitVecVal(len(environment.calldata), 256))
+ state.stack.append(BitVecVal(len(environment.calldata.starting_calldata), 256))
return [global_state]
@StateTransition()
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index 8cdbebfe..bd6db75a 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -20,7 +20,7 @@ class Calldata:
def set_global_state(self, state):
self.state = state
for i in range(len(self.starting_calldata)):
- self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == BitVecVal(self.starting_calldata[i], 8))
+ self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == self.starting_calldata[i])
def concretized(self, model):
concrete_calldata = model[self._calldata].as_list()
From 4bb9e22cc5bd44e4552e3de4eba137453443c44b Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 13 Oct 2018 21:31:11 +0200
Subject: [PATCH 076/213] Implement dynamic transaction execution
---
mythril/laser/ethereum/svm.py | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index cdf85484..08f35ba4 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -60,7 +60,7 @@ class LaserEVM:
def accounts(self):
return self.world_state.accounts
- def sym_exec(self, main_address=None, creation_code=None, contract_name=None):
+ def sym_exec(self, main_address=None, creation_code=None, contract_name=None, max_transactions=3):
logging.debug("Starting LASER execution")
self.time = datetime.now()
@@ -77,12 +77,16 @@ class LaserEVM:
# Reset code coverage
self.coverage = {}
- self.time = datetime.now()
- logging.info("Starting message call transaction")
- execute_message_call(self, created_account.address)
+ for i in range(max_transactions):
+ initial_coverage = self._get_covered_instructions()
- self.time = datetime.now()
- execute_message_call(self, created_account.address)
+ self.time = datetime.now()
+ logging.info("Starting message call transaction, iteration: {}".format(i))
+ execute_message_call(self, created_account.address)
+
+ end_coverage = self._get_covered_instructions()
+ if end_coverage == initial_coverage:
+ break
logging.info("Finished symbolic execution")
logging.info("%d nodes, %d edges, %d total states", len(self.nodes), len(self.edges), self.total_states)
@@ -90,6 +94,13 @@ class LaserEVM:
cov = reduce(lambda sum_, val: sum_ + 1 if val else sum_, coverage[1]) / float(coverage[0]) * 100
logging.info("Achieved {} coverage for code: {}".format(cov, code))
+ def _get_covered_instructions(self) -> int:
+ """ Gets the total number of covered instructions for all accounts in the svm"""
+ total_covered_instructions = 0
+ for _, cv in self.coverage.items():
+ total_covered_instructions += reduce(lambda sum_, val: sum_ + 1 if val else sum_, cv[1])
+ return total_covered_instructions
+
def exec(self, create=False):
for global_state in self.strategy:
if self.execution_timeout and not create:
From dfae6b349e04fce301225b2386fdda172e704886 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 13 Oct 2018 21:31:35 +0200
Subject: [PATCH 077/213] Change loglevel to debug for some statements
---
mythril/laser/ethereum/call.py | 14 +++++++-------
mythril/laser/ethereum/instructions.py | 2 +-
mythril/laser/ethereum/svm.py | 2 +-
3 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 31e6990e..fd5e24bb 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -49,7 +49,7 @@ def get_callee_address(global_state:GlobalState, dynamic_loader: DynLoader, symb
try:
callee_address = hex(util.get_concrete_int(symbolic_to_address))
except AttributeError:
- logging.info("Symbolic call encountered")
+ logging.debug("Symbolic call encountered")
match = re.search(r'storage_(\d+)', str(simplify(symbolic_to_address)))
logging.debug("CALL to: " + str(simplify(symbolic_to_address)))
@@ -58,7 +58,7 @@ def get_callee_address(global_state:GlobalState, dynamic_loader: DynLoader, symb
raise ValueError()
index = int(match.group(1))
- logging.info("Dynamic contract address at storage index {}".format(index))
+ logging.debug("Dynamic contract address at storage index {}".format(index))
# attempt to read the contract address from instance storage
try:
@@ -89,22 +89,22 @@ def get_callee_account(global_state, callee_address, dynamic_loader):
return global_state.accounts[callee_address]
except KeyError:
# We have a valid call address, but contract is not in the modules list
- logging.info("Module with address " + callee_address + " not loaded.")
+ logging.debug("Module with address " + callee_address + " not loaded.")
if dynamic_loader is None:
raise ValueError()
- logging.info("Attempting to load dependency")
+ logging.debug("Attempting to load dependency")
try:
code = dynamic_loader.dynld(environment.active_account.address, callee_address)
except Exception as e:
- logging.info("Unable to execute dynamic loader.")
+ logging.debug("Unable to execute dynamic loader.")
raise ValueError()
if code is None:
- logging.info("No code returned, not a contract account?")
+ logging.debug("No code returned, not a contract account?")
raise ValueError()
- logging.info("Dependency loaded: " + callee_address)
+ logging.debug("Dependency loaded: " + callee_address)
callee_account = Account(callee_address, code, callee_address, dynamic_loader=dynamic_loader)
accounts[callee_address] = callee_account
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 57315bb3..c2c01b4d 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -1028,7 +1028,7 @@ class Instruction:
callee_address, callee_account, call_data, value, call_data_type, gas, memory_out_offset, memory_out_size = get_call_parameters(
global_state, self.dynamic_loader, True)
except ValueError as e:
- logging.info(
+ logging.debug(
"Could not determine required parameters for call, putting fresh symbol on the stack. \n{}".format(e)
)
# TODO: decide what to do in this case
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 08f35ba4..6c48dabe 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -263,7 +263,7 @@ class LaserEVM:
environment.active_function_name = disassembly.addr_to_func[address]
new_node.flags |= NodeFlags.FUNC_ENTRY
- logging.info(
+ logging.debug(
"- Entering function " + environment.active_account.contract_name + ":" + new_node.function_name)
elif address == 0:
environment.active_function_name = "fallback"
From 3e6ca5e976de219fc444c7871c6f22da1c45b7af Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sat, 13 Oct 2018 22:53:36 +0200
Subject: [PATCH 078/213] Chnage regex to limit to correct pattern
---
mythril/ether/ethcontract.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mythril/ether/ethcontract.py b/mythril/ether/ethcontract.py
index fbd87b69..801e063b 100644
--- a/mythril/ether/ethcontract.py
+++ b/mythril/ether/ethcontract.py
@@ -12,8 +12,8 @@ class ETHContract(persistent.Persistent):
# Dynamic contract addresses of the format __[contract-name]_____________ are replaced with a generic address
# Apply this for creation_code & code
- creation_code = re.sub(r'(_+.*_+)', 'aa' * 20, creation_code)
- code = re.sub(r'(_+.*_+)', 'aa' * 20, code)
+ creation_code = re.sub(r'(_{2}.{38})', 'aa' * 20, creation_code)
+ code = re.sub(r'(_{2}.{38})', 'aa' * 20, code)
self.creation_code = creation_code
self.name = name
From c2396a50faa3e9cb0b536756e8e1a31d88661c05 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sun, 14 Oct 2018 00:13:00 +0200
Subject: [PATCH 079/213] Move blockchain interfacing code to
ethereum.interface
---
mythril/{leveldb => ethereum}/__init__.py | 0
mythril/{rpc => ethereum/interface}/__init__.py | 0
mythril/ethereum/interface/leveldb/__init__.py | 0
.../{ => ethereum/interface}/leveldb/accountindexing.py | 0
mythril/{ => ethereum/interface}/leveldb/client.py | 8 ++++----
mythril/{ => ethereum/interface}/leveldb/eth_db.py | 0
mythril/{ => ethereum/interface}/leveldb/state.py | 0
mythril/ethereum/interface/rpc/__init__.py | 0
mythril/{ => ethereum/interface}/rpc/base_client.py | 0
mythril/{ => ethereum/interface}/rpc/client.py | 0
mythril/{ => ethereum/interface}/rpc/constants.py | 0
mythril/{ => ethereum/interface}/rpc/exceptions.py | 0
mythril/{ => ethereum/interface}/rpc/utils.py | 0
mythril/mythril.py | 6 +++---
tests/rpc_test.py | 2 +-
15 files changed, 8 insertions(+), 8 deletions(-)
rename mythril/{leveldb => ethereum}/__init__.py (100%)
rename mythril/{rpc => ethereum/interface}/__init__.py (100%)
create mode 100644 mythril/ethereum/interface/leveldb/__init__.py
rename mythril/{ => ethereum/interface}/leveldb/accountindexing.py (100%)
rename mythril/{ => ethereum/interface}/leveldb/client.py (96%)
rename mythril/{ => ethereum/interface}/leveldb/eth_db.py (100%)
rename mythril/{ => ethereum/interface}/leveldb/state.py (100%)
create mode 100644 mythril/ethereum/interface/rpc/__init__.py
rename mythril/{ => ethereum/interface}/rpc/base_client.py (100%)
rename mythril/{ => ethereum/interface}/rpc/client.py (100%)
rename mythril/{ => ethereum/interface}/rpc/constants.py (100%)
rename mythril/{ => ethereum/interface}/rpc/exceptions.py (100%)
rename mythril/{ => ethereum/interface}/rpc/utils.py (100%)
diff --git a/mythril/leveldb/__init__.py b/mythril/ethereum/__init__.py
similarity index 100%
rename from mythril/leveldb/__init__.py
rename to mythril/ethereum/__init__.py
diff --git a/mythril/rpc/__init__.py b/mythril/ethereum/interface/__init__.py
similarity index 100%
rename from mythril/rpc/__init__.py
rename to mythril/ethereum/interface/__init__.py
diff --git a/mythril/ethereum/interface/leveldb/__init__.py b/mythril/ethereum/interface/leveldb/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/mythril/leveldb/accountindexing.py b/mythril/ethereum/interface/leveldb/accountindexing.py
similarity index 100%
rename from mythril/leveldb/accountindexing.py
rename to mythril/ethereum/interface/leveldb/accountindexing.py
diff --git a/mythril/leveldb/client.py b/mythril/ethereum/interface/leveldb/client.py
similarity index 96%
rename from mythril/leveldb/client.py
rename to mythril/ethereum/interface/leveldb/client.py
index 81c3f9e4..164185de 100644
--- a/mythril/leveldb/client.py
+++ b/mythril/ethereum/interface/leveldb/client.py
@@ -1,12 +1,12 @@
import binascii
import rlp
-from mythril.leveldb.accountindexing import CountableList
-from mythril.leveldb.accountindexing import ReceiptForStorage, AccountIndexer
+from mythril.ethereum.interface.leveldb.accountindexing import CountableList
+from mythril.ethereum.interface.leveldb.accountindexing import ReceiptForStorage, AccountIndexer
import logging
from ethereum import utils
from ethereum.block import BlockHeader, Block
-from mythril.leveldb.state import State
-from mythril.leveldb.eth_db import ETH_DB
+from mythril.ethereum.interface.leveldb import State
+from mythril.ethereum.interface.leveldb.eth_db import ETH_DB
from mythril.ether.ethcontract import ETHContract
from mythril.exceptions import AddressNotFoundError
diff --git a/mythril/leveldb/eth_db.py b/mythril/ethereum/interface/leveldb/eth_db.py
similarity index 100%
rename from mythril/leveldb/eth_db.py
rename to mythril/ethereum/interface/leveldb/eth_db.py
diff --git a/mythril/leveldb/state.py b/mythril/ethereum/interface/leveldb/state.py
similarity index 100%
rename from mythril/leveldb/state.py
rename to mythril/ethereum/interface/leveldb/state.py
diff --git a/mythril/ethereum/interface/rpc/__init__.py b/mythril/ethereum/interface/rpc/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/mythril/rpc/base_client.py b/mythril/ethereum/interface/rpc/base_client.py
similarity index 100%
rename from mythril/rpc/base_client.py
rename to mythril/ethereum/interface/rpc/base_client.py
diff --git a/mythril/rpc/client.py b/mythril/ethereum/interface/rpc/client.py
similarity index 100%
rename from mythril/rpc/client.py
rename to mythril/ethereum/interface/rpc/client.py
diff --git a/mythril/rpc/constants.py b/mythril/ethereum/interface/rpc/constants.py
similarity index 100%
rename from mythril/rpc/constants.py
rename to mythril/ethereum/interface/rpc/constants.py
diff --git a/mythril/rpc/exceptions.py b/mythril/ethereum/interface/rpc/exceptions.py
similarity index 100%
rename from mythril/rpc/exceptions.py
rename to mythril/ethereum/interface/rpc/exceptions.py
diff --git a/mythril/rpc/utils.py b/mythril/ethereum/interface/rpc/utils.py
similarity index 100%
rename from mythril/rpc/utils.py
rename to mythril/ethereum/interface/rpc/utils.py
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 9cdeb0fd..027e1211 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -20,8 +20,8 @@ import platform
from mythril.ether import util
from mythril.ether.ethcontract import ETHContract
from mythril.ether.soliditycontract import SolidityContract, get_contracts_from_file
-from mythril.rpc.client import EthJsonRpc
-from mythril.rpc.exceptions import ConnectionError
+from mythril.ethereum.interface.rpc.client import EthJsonRpc
+from mythril.ethereum.interface.rpc.exceptions import ConnectionError
from mythril.support import signatures
from mythril.support.truffle import analyze_truffle_project
from mythril.support.loader import DynLoader
@@ -31,7 +31,7 @@ from mythril.analysis.callgraph import generate_graph
from mythril.analysis.traceexplore import get_serializable_statespace
from mythril.analysis.security import fire_lasers
from mythril.analysis.report import Report
-from mythril.leveldb.client import EthLevelDB
+from mythril.ethereum.interface.leveldb.client import EthLevelDB
# logging.basicConfig(level=logging.DEBUG)
diff --git a/tests/rpc_test.py b/tests/rpc_test.py
index 89621b64..564c7da8 100644
--- a/tests/rpc_test.py
+++ b/tests/rpc_test.py
@@ -1,6 +1,6 @@
from unittest import TestCase
-from mythril.rpc.client import EthJsonRpc
+from mythril.ethereum.interface.rpc.client import EthJsonRpc
class RpcTest(TestCase):
client = None
From 213250ddb332b5088e037158c965e9a4101a173e Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sun, 14 Oct 2018 00:17:19 +0200
Subject: [PATCH 080/213] Fix import
---
mythril/ethereum/interface/leveldb/client.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/ethereum/interface/leveldb/client.py b/mythril/ethereum/interface/leveldb/client.py
index 164185de..a1b4323b 100644
--- a/mythril/ethereum/interface/leveldb/client.py
+++ b/mythril/ethereum/interface/leveldb/client.py
@@ -5,7 +5,7 @@ from mythril.ethereum.interface.leveldb.accountindexing import ReceiptForStorage
import logging
from ethereum import utils
from ethereum.block import BlockHeader, Block
-from mythril.ethereum.interface.leveldb import State
+from mythril.ethereum.interface.leveldb.state import State
from mythril.ethereum.interface.leveldb.eth_db import ETH_DB
from mythril.ether.ethcontract import ETHContract
from mythril.exceptions import AddressNotFoundError
From 9fb6a81df18723b29adf9d1ef28e210fc863fe40 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Sun, 14 Oct 2018 19:50:05 +0200
Subject: [PATCH 081/213] Make name more verbose
---
mythril/laser/ethereum/svm.py | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 82a6551c..7181be74 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -138,30 +138,30 @@ class LaserEVM:
new_global_states = self._end_message_call(return_global_state, global_state,
revert_changes=True, return_data=None)
- except TransactionStartSignal as e:
+ except TransactionStartSignal as start_signal:
# Setup new global state
- new_global_state = e.transaction.initial_global_state()
+ new_global_state = start_signal.transaction.initial_global_state()
- new_global_state.transaction_stack = copy(global_state.transaction_stack) + [(e.transaction, global_state)]
+ new_global_state.transaction_stack = copy(global_state.transaction_stack) + [(start_signal.transaction, global_state)]
new_global_state.node = global_state.node
new_global_state.mstate.constraints = global_state.mstate.constraints
return [new_global_state], op_code
- except TransactionEndSignal as e:
- transaction, return_global_state = e.global_state.transaction_stack.pop()
+ except TransactionEndSignal as end_signal:
+ transaction, return_global_state = end_signal.global_state.transaction_stack.pop()
if return_global_state is None:
- if (not isinstance(transaction, ContractCreationTransaction) or transaction.return_data) and not e.revert:
- e.global_state.world_state.node = global_state.node
- self.open_states.append(e.global_state.world_state)
+ if (not isinstance(transaction, ContractCreationTransaction) or transaction.return_data) and not end_signal.revert:
+ end_signal.global_state.world_state.node = global_state.node
+ self.open_states.append(end_signal.global_state.world_state)
new_global_states = []
else:
# First execute the post hook for the transaction ending instruction
- self._execute_post_hook(op_code, [e.global_state])
+ self._execute_post_hook(op_code, [end_signal.global_state])
new_global_states = self._end_message_call(return_global_state, global_state,
- revert_changes=False or e.revert,
+ revert_changes=False or end_signal.revert,
return_data=transaction.return_data)
self._execute_post_hook(op_code, new_global_states)
From 499be11ea4e0a468f3daff9cc9d7ad484987848f Mon Sep 17 00:00:00 2001
From: Stamatis Katsaounis
Date: Sun, 14 Oct 2018 23:56:50 +0300
Subject: [PATCH 082/213] Add max-transaction-count cli parameter.
Signed-off-by: Stamatis Katsaounis
---
mythril/analysis/symbolic.py | 5 +++--
mythril/interfaces/cli.py | 4 +++-
mythril/laser/ethereum/svm.py | 7 ++++---
mythril/mythril.py | 6 ++++--
4 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/mythril/analysis/symbolic.py b/mythril/analysis/symbolic.py
index ac03303f..c9431257 100644
--- a/mythril/analysis/symbolic.py
+++ b/mythril/analysis/symbolic.py
@@ -14,7 +14,7 @@ class SymExecWrapper:
"""
def __init__(self, contract, address, strategy, dynloader=None, max_depth=22,
- execution_timeout=None, create_timeout=None):
+ execution_timeout=None, create_timeout=None, max_transaction_count=3):
s_strategy = None
if strategy == 'dfs':
@@ -30,7 +30,8 @@ class SymExecWrapper:
self.laser = svm.LaserEVM(self.accounts, dynamic_loader=dynloader, max_depth=max_depth,
execution_timeout=execution_timeout, strategy=s_strategy,
- create_timeout=create_timeout)
+ create_timeout=create_timeout,
+ max_transaction_count=max_transaction_count)
if isinstance(contract, SolidityContract):
self.laser.sym_exec(creation_code=contract.creation_code, contract_name=contract.name)
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index 3e398704..1784add4 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -69,6 +69,7 @@ def main():
options = parser.add_argument_group('options')
options.add_argument('-m', '--modules', help='Comma-separated list of security analysis modules', metavar='MODULES')
options.add_argument('--max-depth', type=int, default=22, help='Maximum recursion depth for symbolic execution')
+ options.add_argument('--max-transaction-count', type=int, default=3, help='Maximum number of transactions issued by laser')
options.add_argument('--strategy', choices=['dfs', 'bfs'], default='dfs', help='Symbolic execution strategy')
options.add_argument('--execution-timeout', type=int, default=600, help="The amount of seconds to spend on symbolic execution")
options.add_argument('--create-timeout', type=int, default=10, help="The amount of seconds to spend on "
@@ -218,7 +219,8 @@ def main():
modules=[m.strip() for m in args.modules.strip().split(",")] if args.modules else [],
verbose_report=args.verbose_report,
max_depth=args.max_depth, execution_timeout=args.execution_timeout,
- create_timeout=args.create_timeout)
+ create_timeout=args.create_timeout,
+ max_transaction_count=args.max_transaction_count)
outputs = {
'json': report.as_json(),
'text': report.as_text(),
diff --git a/mythril/laser/ethereum/svm.py b/mythril/laser/ethereum/svm.py
index 3a173515..f1bd80b5 100644
--- a/mythril/laser/ethereum/svm.py
+++ b/mythril/laser/ethereum/svm.py
@@ -28,7 +28,7 @@ class LaserEVM:
"""
def __init__(self, accounts, dynamic_loader=None, max_depth=float('inf'), execution_timeout=60, create_timeout=10,
- strategy=DepthFirstSearchStrategy):
+ strategy=DepthFirstSearchStrategy, max_transaction_count=3):
world_state = WorldState()
world_state.accounts = accounts
# this sets the initial world state
@@ -45,6 +45,7 @@ class LaserEVM:
self.work_list = []
self.strategy = strategy(self.work_list, max_depth)
self.max_depth = max_depth
+ self.max_transaction_count = max_transaction_count
self.execution_timeout = execution_timeout
self.create_timeout = create_timeout
@@ -60,7 +61,7 @@ class LaserEVM:
def accounts(self):
return self.world_state.accounts
- def sym_exec(self, main_address=None, creation_code=None, contract_name=None, max_transactions=3):
+ def sym_exec(self, main_address=None, creation_code=None, contract_name=None):
logging.debug("Starting LASER execution")
self.time = datetime.now()
@@ -77,7 +78,7 @@ class LaserEVM:
# Reset code coverage
self.coverage = {}
- for i in range(max_transactions):
+ for i in range(self.max_transaction_count):
initial_coverage = self._get_covered_instructions()
self.time = datetime.now()
diff --git a/mythril/mythril.py b/mythril/mythril.py
index 027e1211..123ab904 100644
--- a/mythril/mythril.py
+++ b/mythril/mythril.py
@@ -360,14 +360,16 @@ class Mythril(object):
return generate_graph(sym, physics=enable_physics, phrackify=phrackify)
def fire_lasers(self, strategy, contracts=None, address=None,
- modules=None, verbose_report=False, max_depth=None, execution_timeout=None, create_timeout=None):
+ modules=None, verbose_report=False, max_depth=None, execution_timeout=None, create_timeout=None,
+ max_transaction_count=None):
all_issues = []
for contract in (contracts or self.contracts):
sym = SymExecWrapper(contract, address, strategy,
dynloader=DynLoader(self.eth) if self.dynld else None,
max_depth=max_depth, execution_timeout=execution_timeout,
- create_timeout=create_timeout)
+ create_timeout=create_timeout,
+ max_transaction_count=max_transaction_count)
issues = fire_lasers(sym, modules)
From aaa450a1ac05f2adb4621a9a93c6645aea632481 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Mon, 15 Oct 2018 11:02:25 -0400
Subject: [PATCH 083/213] updated evm_test.py to create a model from
constraints
---
tests/laser/evm_testsuite/evm_test.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tests/laser/evm_testsuite/evm_test.py b/tests/laser/evm_testsuite/evm_test.py
index 72bcacd5..68a447cb 100644
--- a/tests/laser/evm_testsuite/evm_test.py
+++ b/tests/laser/evm_testsuite/evm_test.py
@@ -3,8 +3,8 @@ from mythril.laser.ethereum.svm import LaserEVM
from mythril.laser.ethereum.state import Account
from mythril.disassembler.disassembly import Disassembly
from mythril.laser.ethereum.transaction.concolic import execute_message_call
+from mythril.analysis.solver import get_model
from datetime import datetime
-from mythril.laser.ethereum.util import get_concrete_int
import binascii
import json
from pathlib import Path
@@ -72,6 +72,7 @@ def test_vmtest(test_name: str, pre_condition: dict, action: dict, post_conditio
return
world_state = laser_evm.open_states[0]
+ model = get_model(laser_evm.nodes[0].states[0].mstate.constraints)
for address, details in post_condition.items():
account = world_state[address]
@@ -81,5 +82,5 @@ def test_vmtest(test_name: str, pre_condition: dict, action: dict, post_conditio
for index, value in details['storage'].items():
expected = int(value, 16)
- actual = get_concrete_int(account.storage[int(index, 16)])
+ actual = model.eval(account.storage[int(index,16)])
assert actual == expected
From 095e8d90b42dea21ad78a3170e135d446eaed35a Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Mon, 15 Oct 2018 21:59:59 +0530
Subject: [PATCH 084/213] Convert util exception to TypeError
---
mythril/laser/ethereum/instructions.py | 32 +++++++++++++-------------
mythril/laser/ethereum/util.py | 15 ++++++------
2 files changed, 23 insertions(+), 24 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 27172f0a..881a820a 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -374,7 +374,7 @@ class Instruction:
logging.debug("Final value: " + str(int.from_bytes(val, byteorder='big')))
state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
- except (util.ConcreteIntException, AttributeError):
+ except (TypeError, AttributeError):
state.stack.append(global_state.new_bitvec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
else:
@@ -402,14 +402,14 @@ class Instruction:
try:
mstart = util.get_concrete_int(op0)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("Unsupported symbolic memory offset in CALLDATACOPY")
return [global_state]
dstart_sym = False
try:
dstart = util.get_concrete_int(op1)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY")
dstart = simplify(op1)
dstart_sym = True
@@ -417,7 +417,7 @@ class Instruction:
size_sym = False
try:
size = util.get_concrete_int(op2)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("Unsupported symbolic size in CALLDATACOPY")
size = simplify(op2)
size_sym = True
@@ -501,7 +501,7 @@ class Instruction:
try:
index, length = util.get_concrete_int(op0), util.get_concrete_int(op1)
- except util.ConcreteIntException:
+ except TypeError:
# Can't access symbolic memory offsets
if is_expr(op0):
op0 = simplify(op0)
@@ -545,7 +545,7 @@ class Instruction:
try:
concrete_size = helper.get_concrete_int(size)
global_state.mstate.mem_extend(concrete_memory_offset, concrete_size)
- except (util.ConcreteIntException, TypeError):
+ except TypeError:
# except both attribute error and Exception
global_state.mstate.mem_extend(concrete_memory_offset, 1)
global_state.mstate.memory[concrete_memory_offset] = \
@@ -687,7 +687,7 @@ class Instruction:
try:
mstart = util.get_concrete_int(op0)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
@@ -720,7 +720,7 @@ class Instruction:
try:
offset = util.get_concrete_int(op0)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
@@ -741,7 +741,7 @@ class Instruction:
index = util.get_concrete_int(index)
return self._sload_helper(global_state, index)
- except util.ConcreteIntException:
+ except TypeError:
if not keccak_function_manager.is_keccak(index):
return self._sload_helper(global_state, str(index))
@@ -802,7 +802,7 @@ class Instruction:
try:
index = util.get_concrete_int(index)
return self._sstore_helper(global_state, index, value)
- except util.ConcreteIntException:
+ except TypeError:
is_keccak = keccak_function_manager.is_keccak(index)
if not is_keccak:
return self._sstore_helper(global_state, str(index), value)
@@ -855,7 +855,7 @@ class Instruction:
disassembly = global_state.environment.code
try:
jump_addr = util.get_concrete_int(state.stack.pop())
- except util.ConcreteIntException:
+ except TypeError:
raise InvalidJumpDestination("Invalid jump argument (symbolic address)")
except IndexError:
raise StackUnderflowException()
@@ -885,7 +885,7 @@ class Instruction:
try:
jump_addr = util.get_concrete_int(op0)
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("Skipping JUMPI to invalid destination.")
global_state.mstate.pc += 1
return [global_state]
@@ -965,7 +965,7 @@ class Instruction:
return_data = [global_state.new_bitvec("return_data", 256)]
try:
return_data = state.memory[util.get_concrete_int(offset):util.get_concrete_int(offset + length)]
- except util.ConcreteIntException:
+ except TypeError:
logging.debug("Return with symbolic length or offset. Not supported")
global_state.current_transaction.end(global_state, return_data)
@@ -1088,7 +1088,7 @@ class Instruction:
try:
memory_out_offset = util.get_concrete_int(memory_out_offset) if isinstance(memory_out_offset, ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size, ExprRef) else memory_out_size
- except util.ConcreteIntException:
+ except TypeError:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
@@ -1156,7 +1156,7 @@ class Instruction:
try:
memory_out_offset = util.get_concrete_int(memory_out_offset) if isinstance(memory_out_offset, ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size, ExprRef) else memory_out_size
- except util.ConcreteIntException:
+ except TypeError:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
@@ -1228,7 +1228,7 @@ class Instruction:
ExprRef) else memory_out_offset
memory_out_size = util.get_concrete_int(memory_out_size) if isinstance(memory_out_size,
ExprRef) else memory_out_size
- except util.ConcreteIntException:
+ except TypeError:
global_state.mstate.stack.append(global_state.new_bitvec("retval_" + str(instr['address']), 256))
return [global_state]
diff --git a/mythril/laser/ethereum/util.py b/mythril/laser/ethereum/util.py
index 7b9061ea..7b4693f5 100644
--- a/mythril/laser/ethereum/util.py
+++ b/mythril/laser/ethereum/util.py
@@ -10,8 +10,6 @@ TT256M1 = 2 ** 256 - 1
TT255 = 2 ** 255
-class ConcreteIntException(AttributeError):
- pass
def sha3(seed):
@@ -20,7 +18,7 @@ def sha3(seed):
def safe_decode(hex_encoded_string):
- if (hex_encoded_string.startswith("0x")):
+ if hex_encoded_string.startswith("0x"):
return bytes.fromhex(hex_encoded_string[2:])
else:
return bytes.fromhex(hex_encoded_string)
@@ -84,12 +82,13 @@ def get_concrete_int(item):
elif is_true(simplified):
return 1
else:
- raise ConcreteIntException("Symbolic boolref encountered")
+ raise TypeError("Symbolic boolref encountered")
try:
return simplify(item).as_long()
except AttributeError:
- raise ConcreteIntException("Got a symbolic BitVecRef")
+ raise TypeError("Got a symbolic BitVecRef")
+
def concrete_int_from_bytes(_bytes, start_index):
@@ -105,11 +104,11 @@ def concrete_int_to_bytes(val):
# logging.debug("concrete_int_to_bytes " + str(val))
- if (type(val) == int):
+ try:
+ return (simplify(val).as_long()).to_bytes(32, byteorder='big')
+ except Z3Exception:
return val.to_bytes(32, byteorder='big')
- return (simplify(val).as_long()).to_bytes(32, byteorder='big')
-
def bytearray_to_int(arr):
o = 0
From 9ae224069841b2f3466ce942074d3284741ea5cb Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Mon, 15 Oct 2018 22:38:55 +0530
Subject: [PATCH 085/213] Change AttributeErrors to TypeErrors
---
.../modules/transaction_order_dependence.py | 2 +-
mythril/analysis/ops.py | 2 +-
mythril/laser/ethereum/call.py | 5 ++---
mythril/laser/ethereum/instructions.py | 20 +++++++++----------
mythril/laser/ethereum/taint_analysis.py | 8 ++++----
5 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/mythril/analysis/modules/transaction_order_dependence.py b/mythril/analysis/modules/transaction_order_dependence.py
index f5b45f5d..f6621293 100644
--- a/mythril/analysis/modules/transaction_order_dependence.py
+++ b/mythril/analysis/modules/transaction_order_dependence.py
@@ -112,7 +112,7 @@ def _get_influencing_sstores(statespace, interesting_storages):
index, value = sstore_state.mstate.stack[-1], sstore_state.mstate.stack[-2]
try:
index = util.get_concrete_int(index)
- except AttributeError:
+ except TypeError:
index = str(index)
if "storage_{}".format(index) not in interesting_storages:
continue
diff --git a/mythril/analysis/ops.py b/mythril/analysis/ops.py
index 999bbb12..b2329294 100644
--- a/mythril/analysis/ops.py
+++ b/mythril/analysis/ops.py
@@ -21,7 +21,7 @@ class Variable:
def get_variable(i):
try:
return Variable(util.get_concrete_int(i), VarType.CONCRETE)
- except AttributeError:
+ except TypeError:
return Variable(simplify(i), VarType.SYMBOLIC)
diff --git a/mythril/laser/ethereum/call.py b/mythril/laser/ethereum/call.py
index 36062128..583c6b2e 100644
--- a/mythril/laser/ethereum/call.py
+++ b/mythril/laser/ethereum/call.py
@@ -48,7 +48,7 @@ def get_callee_address(global_state:GlobalState, dynamic_loader: DynLoader, symb
try:
callee_address = hex(util.get_concrete_int(symbolic_to_address))
- except AttributeError:
+ except TypeError:
logging.debug("Symbolic call encountered")
match = re.search(r'storage_(\d+)', str(simplify(symbolic_to_address)))
@@ -113,7 +113,6 @@ def get_callee_account(global_state, callee_address, dynamic_loader):
return callee_account
-
def get_call_data(global_state, memory_start, memory_size, pad=True):
"""
Gets call_data from the global_state
@@ -131,7 +130,7 @@ def get_call_data(global_state, memory_start, memory_size, pad=True):
call_data += [0] * (32 - len(call_data))
call_data_type = CalldataType.CONCRETE
logging.debug("Calldata: " + str(call_data))
- except AttributeError:
+ except TypeError:
logging.info("Unsupported symbolic calldata offset")
call_data_type = CalldataType.SYMBOLIC
call_data = []
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index d8275423..cea603b4 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -175,7 +175,7 @@ class Instruction:
result = simplify(Concat(BitVecVal(0, 248), Extract(offset + 7, offset, op1)))
else:
result = 0
- except AttributeError:
+ except TypeError:
logging.debug("BYTE: Unsupported symbolic byte offset")
result = global_state.new_bitvec(str(simplify(op1)) + "[" + str(simplify(op0)) + "]", 256)
@@ -265,7 +265,7 @@ class Instruction:
try:
s0 = util.get_concrete_int(s0)
s1 = util.get_concrete_int(s1)
- except ValueError:
+ except TypeError:
return []
if s0 <= 31:
@@ -355,7 +355,7 @@ class Instruction:
try:
offset = util.get_concrete_int(simplify(op0))
b = environment.calldata[offset]
- except AttributeError:
+ except TypeError:
logging.debug("CALLDATALOAD: Unsupported symbolic index")
state.stack.append(global_state.new_bitvec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
@@ -514,7 +514,7 @@ class Instruction:
data = b''.join([util.get_concrete_int(i).to_bytes(1, byteorder='big')
for i in state.memory[index: index + length]])
- except util.ConcreteIntException:
+ except TypeError:
argument = str(state.memory[index]).replace(" ", "_")
result = BitVec("KECCAC[{}]".format(argument), 256)
@@ -539,7 +539,7 @@ class Instruction:
try:
concrete_memory_offset = helper.get_concrete_int(memory_offset)
- except AttributeError:
+ except TypeError:
logging.debug("Unsupported symbolic memory offset in CODECOPY")
return [global_state]
@@ -555,7 +555,7 @@ class Instruction:
try:
concrete_code_offset = helper.get_concrete_int(code_offset)
- except AttributeError:
+ except TypeError:
logging.debug("Unsupported symbolic code offset in CODECOPY")
global_state.mstate.mem_extend(concrete_memory_offset, concrete_size)
for i in range(concrete_size):
@@ -589,7 +589,7 @@ class Instruction:
environment = global_state.environment
try:
addr = hex(helper.get_concrete_int(addr))
- except AttributeError:
+ except TypeError:
logging.info("unsupported symbolic address for EXTCODESIZE")
state.stack.append(global_state.new_bitvec("extcodesize_" + str(addr), 256))
return [global_state]
@@ -663,7 +663,7 @@ class Instruction:
try:
offset = util.get_concrete_int(op0)
- except AttributeError:
+ except TypeError:
logging.debug("Can't MLOAD from symbolic index")
data = global_state.new_bitvec("mem[" + str(simplify(op0)) + "]", 256)
state.stack.append(data)
@@ -998,7 +998,7 @@ class Instruction:
return_data = [global_state.new_bitvec("return_data", 256)]
try:
return_data = state.memory[util.get_concrete_int(offset):util.get_concrete_int(offset + length)]
- except AttributeError:
+ except TypeError:
logging.debug("Return with symbolic length or offset. Not supported")
global_state.current_transaction.end(global_state, return_data=return_data, revert=True)
@@ -1042,7 +1042,7 @@ class Instruction:
try:
mem_out_start = helper.get_concrete_int(memory_out_offset)
mem_out_sz = memory_out_size.as_long()
- except AttributeError:
+ except TypeError:
logging.debug("CALL with symbolic start or offset not supported")
return [global_state]
diff --git a/mythril/laser/ethereum/taint_analysis.py b/mythril/laser/ethereum/taint_analysis.py
index 2144d864..061ab088 100644
--- a/mythril/laser/ethereum/taint_analysis.py
+++ b/mythril/laser/ethereum/taint_analysis.py
@@ -213,7 +213,7 @@ class TaintRunner:
_ = record.stack.pop()
try:
index = helper.get_concrete_int(op0)
- except AttributeError:
+ except TypeError:
logging.debug("Can't MLOAD taint track symbolically")
record.stack.append(False)
return
@@ -225,7 +225,7 @@ class TaintRunner:
_, value_taint = record.stack.pop(), record.stack.pop()
try:
index = helper.get_concrete_int(op0)
- except AttributeError:
+ except TypeError:
logging.debug("Can't mstore taint track symbolically")
return
@@ -236,7 +236,7 @@ class TaintRunner:
_ = record.stack.pop()
try:
index = helper.get_concrete_int(op0)
- except AttributeError:
+ except TypeError:
logging.debug("Can't MLOAD taint track symbolically")
record.stack.append(False)
return
@@ -248,7 +248,7 @@ class TaintRunner:
_, value_taint = record.stack.pop(), record.stack.pop()
try:
index = helper.get_concrete_int(op0)
- except AttributeError:
+ except TypeError:
logging.debug("Can't mstore taint track symbolically")
return
From 58395cb6c6c33d4e634ca8e95e23b23ecb83d349 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Mon, 15 Oct 2018 23:16:40 +0530
Subject: [PATCH 086/213] Pad 0s for the compressed hashes
---
mythril/disassembler/disassembly.py | 8 +++++++-
mythril/ether/asm.py | 4 ++--
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/mythril/disassembler/disassembly.py b/mythril/disassembler/disassembly.py
index 394f22b1..e31a6ba3 100644
--- a/mythril/disassembler/disassembly.py
+++ b/mythril/disassembler/disassembly.py
@@ -20,10 +20,16 @@ class Disassembly(object):
# Parse jump table & resolve function names
- jmptable_indices = asm.find_opcode_sequence(["PUSH4", "EQ"], self.instruction_list)
+ # Take from PUSH1 to PUSH4 because solc seems to remove excess 0s at the beginning for optimizing
+ jmptable_indices = asm.find_opcode_sequence([("PUSH1", "PUSH2", "PUSH3", "PUSH4"), ("EQ",)],
+ self.instruction_list)
for i in jmptable_indices:
func_hash = self.instruction_list[i]['argument']
+
+ # Append with missing 0s at the beginning
+ func_hash = "0x" + func_hash[2:].rjust(8, "0")
+
self.func_hashes.append(func_hash)
try:
# tries local cache, file and optional online lookup
diff --git a/mythril/ether/asm.py b/mythril/ether/asm.py
index 5e2267ea..985b2f07 100644
--- a/mythril/ether/asm.py
+++ b/mythril/ether/asm.py
@@ -70,13 +70,13 @@ def find_opcode_sequence(pattern, instruction_list):
for i in range(0, len(instruction_list) - pattern_length + 1):
- if instruction_list[i]['opcode'] == pattern[0]:
+ if instruction_list[i]['opcode'] in pattern[0]:
matched = True
for j in range(1, len(pattern)):
- if not (instruction_list[i + j]['opcode'] == pattern[j]):
+ if not (instruction_list[i + j]['opcode'] in pattern[j]):
matched = False
break
From 59020c6e4ae4a5ba449562108846600957ce55fc Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Mon, 15 Oct 2018 23:19:26 +0530
Subject: [PATCH 087/213] Comment correction
---
mythril/disassembler/disassembly.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/disassembler/disassembly.py b/mythril/disassembler/disassembly.py
index e31a6ba3..93ec0c27 100644
--- a/mythril/disassembler/disassembly.py
+++ b/mythril/disassembler/disassembly.py
@@ -20,7 +20,7 @@ class Disassembly(object):
# Parse jump table & resolve function names
- # Take from PUSH1 to PUSH4 because solc seems to remove excess 0s at the beginning for optimizing
+ # Need to take from PUSH1 to PUSH4 because solc seems to remove excess 0s at the beginning for optimizing
jmptable_indices = asm.find_opcode_sequence([("PUSH1", "PUSH2", "PUSH3", "PUSH4"), ("EQ",)],
self.instruction_list)
From 6bb6a3221678a603ed26a196cadfffea7cd99606 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Tue, 16 Oct 2018 01:30:59 +0530
Subject: [PATCH 088/213] Add the 2 simple probabilistic search strategies
---
mythril/analysis/symbolic.py | 7 ++-
mythril/interfaces/cli.py | 3 +-
mythril/laser/ethereum/strategy/basic.py | 65 ++++++++++++++----------
3 files changed, 46 insertions(+), 29 deletions(-)
diff --git a/mythril/analysis/symbolic.py b/mythril/analysis/symbolic.py
index 09447a67..922ce7e2 100644
--- a/mythril/analysis/symbolic.py
+++ b/mythril/analysis/symbolic.py
@@ -4,7 +4,8 @@ from mythril.ether.soliditycontract import SolidityContract
import copy
import logging
from .ops import get_variable, SStore, Call, VarType
-from mythril.laser.ethereum.strategy.basic import DepthFirstSearchStrategy, BreadthFirstSearchStrategy
+from mythril.laser.ethereum.strategy.basic import DepthFirstSearchStrategy, BreadthFirstSearchStrategy, \
+ ReturnRandomNaivelyStrategy, ReturnWeightedRandomStrategy
class SymExecWrapper:
@@ -21,6 +22,10 @@ class SymExecWrapper:
s_strategy = DepthFirstSearchStrategy
elif strategy == 'bfs':
s_strategy = BreadthFirstSearchStrategy
+ elif strategy == 'naive-random':
+ s_strategy = ReturnRandomNaivelyStrategy
+ elif strategy == 'weighted-random':
+ s_strategy = ReturnWeightedRandomStrategy
else:
raise ValueError("Invalid strategy argument supplied")
diff --git a/mythril/interfaces/cli.py b/mythril/interfaces/cli.py
index be6cec59..6cbd2d8c 100644
--- a/mythril/interfaces/cli.py
+++ b/mythril/interfaces/cli.py
@@ -69,7 +69,8 @@ def main():
options = parser.add_argument_group('options')
options.add_argument('-m', '--modules', help='Comma-separated list of security analysis modules', metavar='MODULES')
options.add_argument('--max-depth', type=int, default=22, help='Maximum recursion depth for symbolic execution')
- options.add_argument('--strategy', choices=['dfs', 'bfs'], default='dfs', help='Symbolic execution strategy')
+ options.add_argument('--strategy', choices=['dfs', 'bfs', 'naive-random', 'weighted-random'],
+ default='dfs', help='Symbolic execution strategy')
options.add_argument('--execution-timeout', type=int, default=600, help="The amount of seconds to spend on symbolic execution")
options.add_argument('--create-timeout', type=int, default=10, help="The amount of seconds to spend on "
"the initial contract creation")
diff --git a/mythril/laser/ethereum/strategy/basic.py b/mythril/laser/ethereum/strategy/basic.py
index 33dca443..21048a0a 100644
--- a/mythril/laser/ethereum/strategy/basic.py
+++ b/mythril/laser/ethereum/strategy/basic.py
@@ -1,13 +1,12 @@
"""
This module implements basic symbolic execution search strategies
"""
+from abc import ABC, abstractmethod
+from random import choices, randrange
+class BasicStrategy(ABC):
+ __slots__ = 'work_list', 'max_depth', 'open_states'
-class DepthFirstSearchStrategy:
- """
- Implements a depth first search strategy
- I.E. Follow one path to a leaf, and then continue to the next one
- """
def __init__(self, work_list, max_depth):
self.work_list = work_list
self.max_depth = max_depth
@@ -15,40 +14,52 @@ class DepthFirstSearchStrategy:
def __iter__(self):
return self
+ @abstractmethod
+ def get_strategic_global_state(self):
+ raise NotImplementedError("Must be implemented by a subclass")
+
def __next__(self):
- """ Picks the next state to execute """
try:
- # This strategies assumes that new states are appended at the end of the work_list
- # By taking the last element we effectively pick the "newest" states, which amounts to dfs
- global_state = self.work_list.pop()
+ global_state = self.get_strategic_global_state()
if global_state.mstate.depth >= self.max_depth:
return self.__next__()
return global_state
except IndexError:
- raise StopIteration()
+ raise StopIteration
+
+
+class DepthFirstSearchStrategy(BasicStrategy):
+ """
+ Implements a depth first search strategy
+ I.E. Follow one path to a leaf, and then continue to the next one
+ """
+ def get_strategic_global_state(self):
+ return self.work_list.pop()
-class BreadthFirstSearchStrategy:
+
+class BreadthFirstSearchStrategy(BasicStrategy):
"""
Implements a breadth first search strategy
I.E. Execute all states of a "level" before continuing
"""
- def __init__(self, work_list, max_depth):
- self.work_list = work_list
- self.max_depth = max_depth
- def __iter__(self):
- return self
+ def get_strategic_global_state(self):
+ return self.work_list.pop(0)
- def __next__(self):
- """ Picks the next state to execute """
- try:
- # This strategies assumes that new states are appended at the end of the work_list
- # By taking the first element we effectively pick the "oldest" states, which amounts to bfs
- global_state = self.work_list.pop(0)
- if global_state.mstate.depth >= self.max_depth:
- return self.__next__()
- return global_state
- except IndexError:
- raise StopIteration()
+
+class ReturnRandomNaivelyStrategy(BasicStrategy):
+
+ def get_strategic_global_state(self):
+ if len(self.work_list) > 0:
+ return self.work_list.pop(randrange(len(self.work_list)))
+ else:
+ raise IndexError
+
+
+class ReturnWeightedRandomStrategy(BasicStrategy):
+
+ def get_strategic_global_state(self):
+ probability_distribution = [global_state.mstate.depth+1 for global_state in self.work_list]
+ return self.work_list.pop(choices(range(len(self.work_list)), probability_distribution)[0])
From d58aab7a555dd7f7dfc74f46b8fa246fb57843cc Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Tue, 16 Oct 2018 02:04:24 +0530
Subject: [PATCH 089/213] Add choices() for python3.5
---
mythril/laser/ethereum/strategy/basic.py | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/strategy/basic.py b/mythril/laser/ethereum/strategy/basic.py
index 21048a0a..85bf1dc4 100644
--- a/mythril/laser/ethereum/strategy/basic.py
+++ b/mythril/laser/ethereum/strategy/basic.py
@@ -2,7 +2,22 @@
This module implements basic symbolic execution search strategies
"""
from abc import ABC, abstractmethod
-from random import choices, randrange
+from random import randrange
+
+try:
+ from random import choices
+except ImportError:
+
+ from itertools import accumulate
+ from random import random
+ from bisect import bisect
+
+ def choices(population, weights=None):
+ if weights is None:
+ return [population[int(random() * len(population))]]
+ cum_weights = accumulate(weights)
+ return [population[bisect(cum_weights, random()*cum_weights[-1], 0, len(population)-1)]]
+
class BasicStrategy(ABC):
__slots__ = 'work_list', 'max_depth', 'open_states'
From 3dd04d4a9562748c3ed041cc51c634eaff8ed478 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Mon, 15 Oct 2018 16:51:05 -0400
Subject: [PATCH 090/213] fixed evm_test bug
---
tests/laser/evm_testsuite/evm_test.py | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/tests/laser/evm_testsuite/evm_test.py b/tests/laser/evm_testsuite/evm_test.py
index 68a447cb..445bcb9d 100644
--- a/tests/laser/evm_testsuite/evm_test.py
+++ b/tests/laser/evm_testsuite/evm_test.py
@@ -72,7 +72,7 @@ def test_vmtest(test_name: str, pre_condition: dict, action: dict, post_conditio
return
world_state = laser_evm.open_states[0]
- model = get_model(laser_evm.nodes[0].states[0].mstate.constraints)
+ model = get_model(next(iter(laser_evm.nodes.values())).states[0].mstate.constraints)
for address, details in post_condition.items():
account = world_state[address]
@@ -82,5 +82,9 @@ def test_vmtest(test_name: str, pre_condition: dict, action: dict, post_conditio
for index, value in details['storage'].items():
expected = int(value, 16)
- actual = model.eval(account.storage[int(index,16)])
+ if type(account.storage[int(index,16)]) != int:
+ actual = model.eval(account.storage[int(index,16)])
+ actual = 1 if actual == True else 0 if actual == False else actual
+ else:
+ actual = account.storage[int(index,16)]
assert actual == expected
From 66f8a01c4e71882ca7c2e3e7dd2b5cc2ff7aa0f8 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Tue, 16 Oct 2018 09:04:06 -0400
Subject: [PATCH 091/213] patched exp bug
---
mythril/laser/ethereum/instructions.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index d0f3d6fe..395eea78 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -16,6 +16,7 @@ from mythril.laser.ethereum.keccak import KeccakFunctionManager
from mythril.laser.ethereum.state import GlobalState, CalldataType, Calldata
from mythril.laser.ethereum.transaction import MessageCallTransaction, TransactionStartSignal, \
ContractCreationTransaction
+from mythril.analysis.solver import get_model
TT256 = 2 ** 256
TT256M1 = 2 ** 256 - 1
@@ -247,8 +248,8 @@ class Instruction:
@StateTransition()
def exp_(self, global_state):
state = global_state.mstate
-
- base, exponent = util.pop_bitvec(state), util.pop_bitvec(state)
+ model = get_model(state.constraints)
+ base, exponent = model.eval(util.pop_bitvec(state)), model.eval(util.pop_bitvec(state))
if (type(base) != BitVecNumRef) or (type(exponent) != BitVecNumRef):
state.stack.append(global_state.new_bitvec("(" + str(simplify(base)) + ")**(" + str(simplify(exponent)) + ")", 256))
else:
From d2a07157f7c0f25968fd4b9046fcd1383a6977fe Mon Sep 17 00:00:00 2001
From: Nathan
Date: Tue, 16 Oct 2018 10:26:20 -0400
Subject: [PATCH 092/213] better exponential and checks for calldata
---
mythril/laser/ethereum/instructions.py | 8 ++++++--
mythril/laser/ethereum/state.py | 18 ++++++++++++++++--
2 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/mythril/laser/ethereum/instructions.py b/mythril/laser/ethereum/instructions.py
index 395eea78..7c5b4260 100644
--- a/mythril/laser/ethereum/instructions.py
+++ b/mythril/laser/ethereum/instructions.py
@@ -248,8 +248,12 @@ class Instruction:
@StateTransition()
def exp_(self, global_state):
state = global_state.mstate
- model = get_model(state.constraints)
- base, exponent = model.eval(util.pop_bitvec(state)), model.eval(util.pop_bitvec(state))
+ if global_state.environment.calldata.concrete:
+ model = get_model(state.constraints)
+ base, exponent = model.eval(util.pop_bitvec(state)), model.eval(util.pop_bitvec(state))
+ else:
+ base, exponent = util.pop_bitvec(state), util.pop_bitvec(state)
+
if (type(base) != BitVecNumRef) or (type(exponent) != BitVecNumRef):
state.stack.append(global_state.new_bitvec("(" + str(simplify(base)) + ")**(" + str(simplify(exponent)) + ")", 256))
else:
diff --git a/mythril/laser/ethereum/state.py b/mythril/laser/ethereum/state.py
index bd6db75a..3291eefe 100644
--- a/mythril/laser/ethereum/state.py
+++ b/mythril/laser/ethereum/state.py
@@ -1,4 +1,4 @@
-from z3 import BitVec, BitVecVal, BitVecRef, BitVecNumRef, BitVecSort, Solver, ExprRef, Concat, sat, simplify, Array
+from z3 import BitVec, BitVecVal, BitVecRef, BitVecNumRef, BitVecSort, Solver, ExprRef, Concat, sat, simplify, Array, ForAll, Or
from z3.z3types import Z3Exception
from mythril.disassembler.disassembly import Disassembly
from copy import copy, deepcopy
@@ -15,12 +15,26 @@ class Calldata:
def __init__(self, tx_id, starting_calldata: bytes=None):
self.tx_id = tx_id
self._calldata = Array('{}_calldata'.format(self.tx_id), BitVecSort(256), BitVecSort(8))
+ if starting_calldata:
+ self.calldatasize = BitVecVal(len(starting_calldata), 256)
+ self.concrete = True
+ else:
+ self.calldatasize = BitVec('{}_calldatasize'.format(self.tx_id), 256)
+ self.concrete = False
+
self.starting_calldata = starting_calldata if starting_calldata else []
def set_global_state(self, state):
self.state = state
+ constraints = []
+
+ x = BitVec('x', 256)
+ constraints.append(ForAll(x, Or(self._calldata[x] == 0, x < self.calldatasize)))
+
for i in range(len(self.starting_calldata)):
- self.state.mstate.constraints.append(self._calldata[BitVecVal(i, 256)] == self.starting_calldata[i])
+ constraints.append(self._calldata[BitVecVal(i, 256)] == self.starting_calldata[i])
+
+ self.state.mstate.constraints.extend(constraints)
def concretized(self, model):
concrete_calldata = model[self._calldata].as_list()
From 78fc5478f0b221c78805fcf08a6bba7f0bb4f969 Mon Sep 17 00:00:00 2001
From: Nathan
Date: Tue, 16 Oct 2018 10:51:26 -0400
Subject: [PATCH 093/213] use new calldata for contract creation as well
---
.../laser/ethereum/transaction/transaction_models.py | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/mythril/laser/ethereum/transaction/transaction_models.py b/mythril/laser/ethereum/transaction/transaction_models.py
index db5dd4a6..1b504814 100644
--- a/mythril/laser/ethereum/transaction/transaction_models.py
+++ b/mythril/laser/ethereum/transaction/transaction_models.py
@@ -1,6 +1,6 @@
import logging
from mythril.disassembler.disassembly import Disassembly
-from mythril.laser.ethereum.state import GlobalState, Environment, WorldState
+from mythril.laser.ethereum.state import GlobalState, Environment, WorldState, Calldata
from z3 import BitVec
import array
@@ -31,7 +31,7 @@ class MessageCallTransaction:
world_state,
callee_account,
caller,
- call_data=(),
+ call_data=None,
identifier=None,
gas_price=None,
call_value=None,
@@ -44,7 +44,7 @@ class MessageCallTransaction:
self.world_state = world_state
self.callee_account = callee_account
self.caller = caller
- self.call_data = call_data
+ self.call_data = Calldata(self.id) if call_data is None else Calldata(self.id, call_data) if type(call_data) == list else call_data
self.gas_price = BitVec("gasprice{}".format(identifier), 256) if gas_price is None else gas_price
self.call_value = BitVec("callvalue{}".format(identifier), 256) if call_value is None else call_value
self.origin = BitVec("origin{}".format(identifier), 256) if origin is None else origin
@@ -84,7 +84,7 @@ class ContractCreationTransaction:
identifier=None,
callee_account=None,
code=None,
- call_data=(),
+ call_data=None,
gas_price=None,
call_value=None,
origin=None,
@@ -103,7 +103,7 @@ class ContractCreationTransaction:
self.origin = BitVec("origin{}".format(identifier), 256) if origin is None else origin
self.call_data_type = BitVec("call_data_type{}".format(identifier), 256) if call_data_type is None else call_data_type
- self.call_data = call_data
+ self.call_data = Calldata(self.id) if call_data is None else Calldata(self.id, call_data) if type(call_data) == list else call_data
self.origin = origin
self.code = code
self.return_data = None
From a4eea864f8fef2484318343f64093ad10ca0b31f Mon Sep 17 00:00:00 2001
From: Yurii Rashkovskii
Date: Tue, 16 Oct 2018 11:58:23 -0700
Subject: [PATCH 094/213] Problem: truffle project analysis ignores --solc-args
This prevents passing custom `solc` arguments which is important in some
cases (for example, `--allow-paths` is a very useful option)
Solution: pass solc_args through
---
mythril/support/truffle.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/support/truffle.py b/mythril/support/truffle.py
index aced1086..6dd13b2e 100644
--- a/mythril/support/truffle.py
+++ b/mythril/support/truffle.py
@@ -40,7 +40,7 @@ def analyze_truffle_project(sigs, args):
if len(bytecode) < 4:
continue
- sigs.import_from_solidity_source(contractdata['sourcePath'])
+ sigs.import_from_solidity_source(contractdata['sourcePath'], solc_args=args.solc_args)
sigs.write()
ethcontract = ETHContract(bytecode, name=name)
From 0619cf2612ac9ae5048520ee0c078eef7e96808b Mon Sep 17 00:00:00 2001
From: Yurii Rashkovskii
Date: Tue, 16 Oct 2018 12:01:30 -0700
Subject: [PATCH 095/213] Problem: docker build times
Currenlty, every time a docker container is rebuilt for updated source
code of the package, it'll start from scratch. This means it will not
reuse layers with existing Python, solc, etc. installation.
Solution: install Python first, copy source code after
This allows to reuse the base layer.
---
Dockerfile | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/Dockerfile b/Dockerfile
index 3e3cb592..59c9123d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,5 @@
FROM ubuntu:bionic
-COPY . /opt/mythril
-
RUN apt-get update \
&& apt-get install -y \
build-essential \
@@ -18,8 +16,11 @@ RUN apt-get update \
python3-dev \
pandoc \
git \
- && ln -s /usr/bin/python3 /usr/local/bin/python \
- && cd /opt/mythril \
+ && ln -s /usr/bin/python3 /usr/local/bin/python
+
+COPY . /opt/mythril
+
+RUN cd /opt/mythril \
&& pip3 install -r requirements.txt \
&& python setup.py install
From 4cf1f27f77e65468c0615eb0e4abacb4e098e00b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcus=20M=C3=B6nnig?=
Date: Wed, 17 Oct 2018 12:39:04 +0200
Subject: [PATCH 096/213] Precopy requirements.txt
---
Dockerfile | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/Dockerfile b/Dockerfile
index 59c9123d..8594ecb0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,8 @@ RUN apt-get update \
git \
&& ln -s /usr/bin/python3 /usr/local/bin/python
-COPY . /opt/mythril
+
+COPY ./requirements.txt /opt/mythril/requirements.txt
RUN cd /opt/mythril \
&& pip3 install -r requirements.txt \
@@ -29,4 +30,6 @@ ENV LANG en_US.UTF-8
ENV LANGUAGE en_US.en
ENV LC_ALL en_US.UTF-8
+COPY . /opt/mythril
+
ENTRYPOINT ["/usr/local/bin/myth"]
From 9b027ed72bcaf7f5ed67c564c8360c7526c7a7ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcus=20M=C3=B6nnig?=
Date: Wed, 17 Oct 2018 13:43:00 +0200
Subject: [PATCH 097/213] Add setup.py and Pipfile as precopy steps
---
Dockerfile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Dockerfile b/Dockerfile
index 8594ecb0..48cfe911 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,8 @@ RUN apt-get update \
git \
&& ln -s /usr/bin/python3 /usr/local/bin/python
-
+COPY ./setup.py /opt/mythril/setup.py
+COPY ./Pipfile /opt/mythril/Pipfile
COPY ./requirements.txt /opt/mythril/requirements.txt
RUN cd /opt/mythril \
From 96edc1a305fa8846b614743cf0ad4ed9592a4b13 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcus=20M=C3=B6nnig?=
Date: Wed, 17 Oct 2018 13:45:05 +0200
Subject: [PATCH 098/213] Remove Pipfile as precopy step
---
Dockerfile | 1 -
1 file changed, 1 deletion(-)
diff --git a/Dockerfile b/Dockerfile
index 48cfe911..283c0c88 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,6 @@ RUN apt-get update \
&& ln -s /usr/bin/python3 /usr/local/bin/python
COPY ./setup.py /opt/mythril/setup.py
-COPY ./Pipfile /opt/mythril/Pipfile
COPY ./requirements.txt /opt/mythril/requirements.txt
RUN cd /opt/mythril \
From 8555663adf426d03934646880485a01cd1c8b848 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Wed, 17 Oct 2018 17:20:57 +0530
Subject: [PATCH 099/213] Remove %s in formatting
previously %s was used to display variable for string formatting which won't work.
---
mythril/analysis/modules/deprecated_ops.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mythril/analysis/modules/deprecated_ops.py b/mythril/analysis/modules/deprecated_ops.py
index 84f39b6e..2b187e2d 100644
--- a/mythril/analysis/modules/deprecated_ops.py
+++ b/mythril/analysis/modules/deprecated_ops.py
@@ -24,7 +24,7 @@ def execute(statespace):
instruction = state.get_current_instruction()
if instruction['opcode'] == "ORIGIN":
- description = "Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. " \
+ description = "The function `{}` retrieves the transaction origin (tx.origin) using the ORIGIN opcode. " \
"Use msg.sender instead.\nSee also: " \
"https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin".format(node.function_name)
From a939a3255a7a5aa211649b0fd2c1843b23d601b2 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Wed, 17 Oct 2018 17:32:10 +0530
Subject: [PATCH 100/213] Update origin.sol.o.json
---
tests/testdata/outputs_expected/origin.sol.o.json | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/testdata/outputs_expected/origin.sol.o.json b/tests/testdata/outputs_expected/origin.sol.o.json
index 640bce9c..04d6ee81 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.json
+++ b/tests/testdata/outputs_expected/origin.sol.o.json
@@ -1 +1 @@
-{"error": null, "issues": [{"address": 317, "contract": "Unknown", "debug": "", "description": "Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin", "function": "transferOwnership(address)", "swc_id": "115", "title": "Use of tx.origin", "type": "Warning"}], "success": true}
\ No newline at end of file
+{"error": null, "issues": [{"address": 317, "contract": "Unknown", "debug": "", "description": "The function `transferOwnership(address)` retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin", "function": "transferOwnership(address)", "swc_id": "115", "title": "Use of tx.origin", "type": "Warning"}], "success": true}
From 5e48355d497e2c1ac8a28fbfed88d1b591216d86 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Wed, 17 Oct 2018 17:33:18 +0530
Subject: [PATCH 101/213] Remove the %s in markdown test
---
tests/testdata/outputs_expected/origin.sol.o.markdown | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/testdata/outputs_expected/origin.sol.o.markdown b/tests/testdata/outputs_expected/origin.sol.o.markdown
index 772ef122..1e9d6d8b 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.markdown
+++ b/tests/testdata/outputs_expected/origin.sol.o.markdown
@@ -9,5 +9,5 @@
### Description
-Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
+The function `transferOwnership(address)` retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin
From c105b17211dd26964629552f10cd666b2f9697b6 Mon Sep 17 00:00:00 2001
From: Nikhil Parasaram
Date: Wed, 17 Oct 2018 17:34:03 +0530
Subject: [PATCH 102/213] Remove %s in the text test
---
tests/testdata/outputs_expected/origin.sol.o.text | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/testdata/outputs_expected/origin.sol.o.text b/tests/testdata/outputs_expected/origin.sol.o.text
index f159a8eb..b71422be 100644
--- a/tests/testdata/outputs_expected/origin.sol.o.text
+++ b/tests/testdata/outputs_expected/origin.sol.o.text
@@ -4,7 +4,7 @@ Type: Warning
Contract: Unknown
Function name: transferOwnership(address)
PC address: 317
-Function %s retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
+The function `transferOwnership(address)` retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin
--------------------
From 9e600168fb5537f97438c8b99c7d3e989491e226 Mon Sep 17 00:00:00 2001
From: Joran Honig
Date: Wed, 17 Oct 2018 15:08:39 +0200
Subject: [PATCH 103/213] Also check for empty return data
---
mythril/laser/ethereum/transaction/transaction_models.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mythril/laser/ethereum/transaction/transaction_models.py b/mythril/laser/ethereum/transaction/transaction_models.py
index 35826bcd..4060c4e1 100644
--- a/mythril/laser/ethereum/transaction/transaction_models.py
+++ b/mythril/laser/ethereum/transaction/transaction_models.py
@@ -129,7 +129,7 @@ class ContractCreationTransaction:
def end(self, global_state, return_data=None, revert=False):
- if not all([isinstance(element, int) for element in return_data]):
+ if not all([isinstance(element, int) for element in return_data]) or len(return_data) == 0:
self.return_data = None
raise TransactionEndSignal(global_state)
@@ -137,6 +137,7 @@ class ContractCreationTransaction:
global_state.environment.active_account.code = Disassembly(contract_code)
self.return_data = global_state.environment.active_account.address
+ assert global_state.environment.active_account.code.instruction_list != []
raise TransactionEndSignal(global_state, revert=revert)
From 39ace87e872c1f20a92555b0a1e58af05a3133b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcus=20M=C3=B6nnig?=
Date: Wed, 17 Oct 2018 18:14:39 +0200
Subject: [PATCH 104/213] Add and tags
---
mythril/analysis/templates/callgraph.html | 2 +-
static/Ownable.html | 4 +++-
static/assertions.html | 5 +++--
static/mythril.html | 4 +++-
tests/testdata/outputs_expected/calls.sol.o.graph.html | 2 ++
.../testdata/outputs_expected/environments.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/ether_send.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/exceptions.sol.o.graph.html | 2 ++
.../outputs_expected/kinds_of_calls.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/metacoin.sol.o.graph.html | 2 ++
.../outputs_expected/multi_contracts.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/nonascii.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/origin.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/overflow.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/returnvalue.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/suicide.sol.o.graph.html | 2 ++
tests/testdata/outputs_expected/underflow.sol.o.graph.html | 2 ++
17 files changed, 36 insertions(+), 5 deletions(-)
diff --git a/mythril/analysis/templates/callgraph.html b/mythril/analysis/templates/callgraph.html
index 5032b2c2..807ecfc6 100644
--- a/mythril/analysis/templates/callgraph.html
+++ b/mythril/analysis/templates/callgraph.html
@@ -1,7 +1,7 @@
- Laser - Call Graph
+ Call Graph
diff --git a/static/Ownable.html b/static/Ownable.html
index 964558e4..9dff1f1a 100644
--- a/static/Ownable.html
+++ b/static/Ownable.html
@@ -1,5 +1,7 @@
+
-
+
+ Call Graph
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
+
+
+
+
+
+
+
+
+
Mythril / Ethereum LASER Symbolic VM
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json
new file mode 100644
index 00000000..d7b6f7e0
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "swc_id": "114", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown
new file mode 100644
index 00000000..f19dbaef
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown
@@ -0,0 +1,111 @@
+# Analysis results for test-filename.sol
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x5a6814ec`
+- PC address: 661
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x5a6814ec`
+- PC address: 666
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 779
+
+### Description
+
+This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+
+## Transaction order dependence
+- SWC ID: 114
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 779
+
+### Description
+
+Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 784
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 858
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## State change after external call
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 869
+
+### Description
+
+The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 871
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xe1d10f79`
+- PC address: 912
+
+### Description
+
+This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe1d10f79`
+- PC address: 918
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text
new file mode 100644
index 00000000..c65b9fc7
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text
@@ -0,0 +1,90 @@
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0x5a6814ec
+PC address: 661
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0x5a6814ec
+PC address: 666
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 779
+This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+--------------------
+
+==== Transaction order dependence ====
+SWC ID: 114
+Type: Warning
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 779
+Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 784
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 858
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== State change after external call ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 869
+The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 871
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xe1d10f79
+PC address: 912
+This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe1d10f79
+PC address: 918
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm
new file mode 100644
index 00000000..7a5b2043
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm
@@ -0,0 +1,259 @@
+0 PUSH1 0x80
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH2 0x004c
+12 JUMPI
+13 PUSH1 0x00
+15 CALLDATALOAD
+16 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+46 SWAP1
+47 DIV
+48 PUSH4 0xffffffff
+53 AND
+54 DUP1
+55 PUSH4 0x06661abd
+60 EQ
+61 PUSH2 0x0051
+64 JUMPI
+65 DUP1
+66 PUSH4 0x83f12fec
+71 EQ
+72 PUSH2 0x007c
+75 JUMPI
+76 JUMPDEST
+77 PUSH1 0x00
+79 DUP1
+80 REVERT
+81 JUMPDEST
+82 CALLVALUE
+83 DUP1
+84 ISZERO
+85 PUSH2 0x005d
+88 JUMPI
+89 PUSH1 0x00
+91 DUP1
+92 REVERT
+93 JUMPDEST
+94 POP
+95 PUSH2 0x0066
+98 PUSH2 0x0104
+101 JUMP
+102 JUMPDEST
+103 PUSH1 0x40
+105 MLOAD
+106 DUP1
+107 DUP3
+108 DUP2
+109 MSTORE
+110 PUSH1 0x20
+112 ADD
+113 SWAP2
+114 POP
+115 POP
+116 PUSH1 0x40
+118 MLOAD
+119 DUP1
+120 SWAP2
+121 SUB
+122 SWAP1
+123 RETURN
+124 JUMPDEST
+125 CALLVALUE
+126 DUP1
+127 ISZERO
+128 PUSH2 0x0088
+131 JUMPI
+132 PUSH1 0x00
+134 DUP1
+135 REVERT
+136 JUMPDEST
+137 POP
+138 PUSH2 0x00ea
+141 PUSH1 0x04
+143 DUP1
+144 CALLDATASIZE
+145 SUB
+146 DUP2
+147 ADD
+148 SWAP1
+149 DUP1
+150 DUP1
+151 CALLDATALOAD
+152 SWAP1
+153 PUSH1 0x20
+155 ADD
+156 SWAP1
+157 DUP3
+158 ADD
+159 DUP1
+160 CALLDATALOAD
+161 SWAP1
+162 PUSH1 0x20
+164 ADD
+165 SWAP1
+166 DUP1
+167 DUP1
+168 PUSH1 0x20
+170 MUL
+171 PUSH1 0x20
+173 ADD
+174 PUSH1 0x40
+176 MLOAD
+177 SWAP1
+178 DUP2
+179 ADD
+180 PUSH1 0x40
+182 MSTORE
+183 DUP1
+184 SWAP4
+185 SWAP3
+186 SWAP2
+187 SWAP1
+188 DUP2
+189 DUP2
+190 MSTORE
+191 PUSH1 0x20
+193 ADD
+194 DUP4
+195 DUP4
+196 PUSH1 0x20
+198 MUL
+199 DUP1
+200 DUP3
+201 DUP5
+202 CALLDATACOPY
+203 DUP3
+204 ADD
+205 SWAP2
+206 POP
+207 POP
+208 POP
+209 POP
+210 POP
+211 POP
+212 SWAP2
+213 SWAP3
+214 SWAP2
+215 SWAP3
+216 SWAP1
+217 DUP1
+218 CALLDATALOAD
+219 SWAP1
+220 PUSH1 0x20
+222 ADD
+223 SWAP1
+224 SWAP3
+225 SWAP2
+226 SWAP1
+227 POP
+228 POP
+229 POP
+230 PUSH2 0x010a
+233 JUMP
+234 JUMPDEST
+235 PUSH1 0x40
+237 MLOAD
+238 DUP1
+239 DUP3
+240 ISZERO
+241 ISZERO
+242 ISZERO
+243 ISZERO
+244 DUP2
+245 MSTORE
+246 PUSH1 0x20
+248 ADD
+249 SWAP2
+250 POP
+251 POP
+252 PUSH1 0x40
+254 MLOAD
+255 DUP1
+256 SWAP2
+257 SUB
+258 SWAP1
+259 RETURN
+260 JUMPDEST
+261 PUSH1 0x00
+263 SLOAD
+264 DUP2
+265 JUMP
+266 JUMPDEST
+267 PUSH1 0x00
+269 DUP1
+270 PUSH1 0x00
+272 DUP5
+273 MLOAD
+274 SWAP2
+275 POP
+276 DUP4
+277 DUP3
+278 MUL
+279 SWAP1
+280 POP
+281 PUSH1 0x00
+283 DUP3
+284 GT
+285 DUP1
+286 ISZERO
+287 PUSH2 0x0129
+290 JUMPI
+291 POP
+292 PUSH1 0x14
+294 DUP3
+295 GT
+296 ISZERO
+297 JUMPDEST
+298 ISZERO
+299 ISZERO
+300 PUSH2 0x0134
+303 JUMPI
+304 PUSH1 0x00
+306 DUP1
+307 REVERT
+308 JUMPDEST
+309 DUP1
+310 PUSH1 0x01
+312 PUSH1 0x00
+314 CALLER
+315 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+336 AND
+337 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+358 AND
+359 DUP2
+360 MSTORE
+361 PUSH1 0x20
+363 ADD
+364 SWAP1
+365 DUP2
+366 MSTORE
+367 PUSH1 0x20
+369 ADD
+370 PUSH1 0x00
+372 SHA3
+373 PUSH1 0x00
+375 DUP3
+376 DUP3
+377 SLOAD
+378 SUB
+379 SWAP3
+380 POP
+381 POP
+382 DUP2
+383 SWAP1
+384 SSTORE
+385 POP
+386 PUSH1 0x01
+388 SWAP3
+389 POP
+390 POP
+391 POP
+392 SWAP3
+393 SWAP2
+394 POP
+395 POP
+396 JUMP
+397 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html
new file mode 100644
index 00000000..9dbc6800
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json
new file mode 100644
index 00000000..fb92acaf
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "The substraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "The substraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "The arithmetic operation can result in integer overflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown
new file mode 100644
index 00000000..4f86063c
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown
@@ -0,0 +1,34 @@
+# Analysis results for test-filename.sol
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 567
+
+### Description
+
+The substraction can result in an integer underflow.
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 649
+
+### Description
+
+The substraction can result in an integer underflow.
+
+## Integer Overflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 725
+
+### Description
+
+The arithmetic operation can result in integer overflow.
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text
new file mode 100644
index 00000000..acdce40b
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text
@@ -0,0 +1,30 @@
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 567
+The substraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 649
+The substraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Overflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 725
+The arithmetic operation can result in integer overflow.
+
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm
new file mode 100644
index 00000000..13a426cc
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm
@@ -0,0 +1,129 @@
+0 PUSH1 0x60
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH2 0x004c
+12 JUMPI
+13 PUSH1 0x00
+15 CALLDATALOAD
+16 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+46 SWAP1
+47 DIV
+48 PUSH4 0xffffffff
+53 AND
+54 DUP1
+55 PUSH4 0x633ab5e0
+60 EQ
+61 PUSH2 0x0051
+64 JUMPI
+65 DUP1
+66 PUSH4 0xe3bea282
+71 EQ
+72 PUSH2 0x0066
+75 JUMPI
+76 JUMPDEST
+77 PUSH1 0x00
+79 DUP1
+80 REVERT
+81 JUMPDEST
+82 CALLVALUE
+83 ISZERO
+84 PUSH2 0x005c
+87 JUMPI
+88 PUSH1 0x00
+90 DUP1
+91 REVERT
+92 JUMPDEST
+93 PUSH2 0x0064
+96 PUSH2 0x007b
+99 JUMP
+100 JUMPDEST
+101 STOP
+102 JUMPDEST
+103 CALLVALUE
+104 ISZERO
+105 PUSH2 0x0071
+108 JUMPI
+109 PUSH1 0x00
+111 DUP1
+112 REVERT
+113 JUMPDEST
+114 PUSH2 0x0079
+117 PUSH2 0x00d4
+120 JUMP
+121 JUMPDEST
+122 STOP
+123 JUMPDEST
+124 PUSH1 0x00
+126 DUP1
+127 SWAP1
+128 SLOAD
+129 SWAP1
+130 PUSH2 0x0100
+133 EXP
+134 SWAP1
+135 DIV
+136 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+157 AND
+158 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+179 AND
+180 PUSH1 0x40
+182 MLOAD
+183 PUSH1 0x00
+185 PUSH1 0x40
+187 MLOAD
+188 DUP1
+189 DUP4
+190 SUB
+191 DUP2
+192 PUSH1 0x00
+194 DUP7
+195 GAS
+196 CALL
+197 SWAP2
+198 POP
+199 POP
+200 ISZERO
+201 ISZERO
+202 PUSH2 0x00d2
+205 JUMPI
+206 PUSH1 0x00
+208 DUP1
+209 REVERT
+210 JUMPDEST
+211 JUMP
+212 JUMPDEST
+213 PUSH1 0x00
+215 DUP1
+216 SWAP1
+217 SLOAD
+218 SWAP1
+219 PUSH2 0x0100
+222 EXP
+223 SWAP1
+224 DIV
+225 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+246 AND
+247 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+268 AND
+269 PUSH1 0x40
+271 MLOAD
+272 PUSH1 0x00
+274 PUSH1 0x40
+276 MLOAD
+277 DUP1
+278 DUP4
+279 SUB
+280 DUP2
+281 PUSH1 0x00
+283 DUP7
+284 GAS
+285 CALL
+286 SWAP2
+287 POP
+288 POP
+289 POP
+290 JUMP
+291 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html
new file mode 100644
index 00000000..a63a268a
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+
Mythril / Ethereum LASER Symbolic VM
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json
new file mode 100644
index 00000000..81ee3cb3
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 196, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x633ab5e0", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 285, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe3bea282", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 290, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe3bea282", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown
new file mode 100644
index 00000000..f3a058bd
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown
@@ -0,0 +1,34 @@
+# Analysis results for test-filename.sol
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x633ab5e0`
+- PC address: 196
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe3bea282`
+- PC address: 285
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe3bea282`
+- PC address: 290
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text
new file mode 100644
index 00000000..2a8b1470
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text
@@ -0,0 +1,27 @@
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0x633ab5e0
+PC address: 196
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe3bea282
+PC address: 285
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe3bea282
+PC address: 290
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm
new file mode 100644
index 00000000..892e7787
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm
@@ -0,0 +1,58 @@
+0 PUSH1 0x60
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH1 0x3f
+11 JUMPI
+12 PUSH1 0x00
+14 CALLDATALOAD
+15 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+45 SWAP1
+46 DIV
+47 PUSH4 0xffffffff
+52 AND
+53 DUP1
+54 PUSH4 0xcbf0b0c0
+59 EQ
+60 PUSH1 0x44
+62 JUMPI
+63 JUMPDEST
+64 PUSH1 0x00
+66 DUP1
+67 REVERT
+68 JUMPDEST
+69 CALLVALUE
+70 ISZERO
+71 PUSH1 0x4e
+73 JUMPI
+74 PUSH1 0x00
+76 DUP1
+77 REVERT
+78 JUMPDEST
+79 PUSH1 0x78
+81 PUSH1 0x04
+83 DUP1
+84 DUP1
+85 CALLDATALOAD
+86 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+107 AND
+108 SWAP1
+109 PUSH1 0x20
+111 ADD
+112 SWAP1
+113 SWAP2
+114 SWAP1
+115 POP
+116 POP
+117 PUSH1 0x7a
+119 JUMP
+120 JUMPDEST
+121 STOP
+122 JUMPDEST
+123 DUP1
+124 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+145 AND
+146 SUICIDE
+147 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html
new file mode 100644
index 00000000..e1797023
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.json b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.json
new file mode 100644
index 00000000..fb92acaf
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "The substraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "The substraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "The arithmetic operation can result in integer overflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.markdown
new file mode 100644
index 00000000..4f86063c
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.markdown
@@ -0,0 +1,34 @@
+# Analysis results for test-filename.sol
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 567
+
+### Description
+
+The substraction can result in an integer underflow.
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 649
+
+### Description
+
+The substraction can result in an integer underflow.
+
+## Integer Overflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 725
+
+### Description
+
+The arithmetic operation can result in integer overflow.
diff --git a/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.text b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.text
new file mode 100644
index 00000000..acdce40b
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/underflow.sol.o.text
@@ -0,0 +1,30 @@
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 567
+The substraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 649
+The substraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Overflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 725
+The arithmetic operation can result in integer overflow.
+
+--------------------
+
diff --git a/tests/testdata/outputs_expected/overflow.sol.o.graph.html b/tests/testdata/outputs_expected/overflow.sol.o.graph.html
index 5d117d28..ed71dd6e 100644
--- a/tests/testdata/outputs_expected/overflow.sol.o.graph.html
+++ b/tests/testdata/outputs_expected/overflow.sol.o.graph.html
@@ -8,6 +8,7 @@
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
Mythril / Ethereum LASER Symbolic VM
-
+
+
+
+
+
+
+
+
+
+
Mythril / Ethereum LASER Symbolic VM
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json
new file mode 100644
index 00000000..d7b6f7e0
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x5a6814ec", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 666, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0x5a6814ec", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xd24b08cc", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 779, "contract": "Unknown", "debug": "", "description": "Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location", "function": "_function_0xd24b08cc", "swc_id": "114", "title": "Transaction order dependence", "type": "Warning"}, {"address": 784, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xd24b08cc", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 858, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 869, "contract": "Unknown", "debug": "", "description": "The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.", "function": "_function_0xe11f493e", "swc_id": "107", "title": "State change after external call", "type": "Warning"}, {"address": 871, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe11f493e", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}, {"address": 912, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.", "function": "_function_0xe1d10f79", "swc_id": "107", "title": "Message call to external contract", "type": "Warning"}, {"address": 918, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe1d10f79", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown
new file mode 100644
index 00000000..f19dbaef
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.markdown
@@ -0,0 +1,111 @@
+# Analysis results for test-filename.sol
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x5a6814ec`
+- PC address: 661
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x5a6814ec`
+- PC address: 666
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 779
+
+### Description
+
+This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+
+## Transaction order dependence
+- SWC ID: 114
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 779
+
+### Description
+
+Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xd24b08cc`
+- PC address: 784
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 858
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## State change after external call
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 869
+
+### Description
+
+The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe11f493e`
+- PC address: 871
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Warning
+- Contract: Unknown
+- Function name: `_function_0xe1d10f79`
+- PC address: 912
+
+### Description
+
+This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe1d10f79`
+- PC address: 918
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
diff --git a/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text
new file mode 100644
index 00000000..c65b9fc7
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/calls.sol.o.text
@@ -0,0 +1,90 @@
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0x5a6814ec
+PC address: 661
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0x5a6814ec
+PC address: 666
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 779
+This contract executes a message call to an address found at storage slot 1. This storage slot can be written to by calling the function `_function_0x2776b163`. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+--------------------
+
+==== Transaction order dependence ====
+SWC ID: 114
+Type: Warning
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 779
+Possible transaction order dependence vulnerability: The value or direction of the call statement is determined from a tainted storage location
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xd24b08cc
+PC address: 784
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 858
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== State change after external call ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 869
+The contract account state is changed after an external call. Consider that the called contract could re-enter the function before this state change takes place. This can lead to business logic vulnerabilities.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe11f493e
+PC address: 871
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Warning
+Contract: Unknown
+Function name: _function_0xe1d10f79
+PC address: 912
+This contract executes a message call to an address provided as a function argument. Generally, it is not recommended to call user-supplied addresses using Solidity's call() construct. Note that attackers might leverage reentrancy attacks to exploit race conditions or manipulate this contract's state.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe1d10f79
+PC address: 918
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm
new file mode 100644
index 00000000..7a5b2043
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.easm
@@ -0,0 +1,259 @@
+0 PUSH1 0x80
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH2 0x004c
+12 JUMPI
+13 PUSH1 0x00
+15 CALLDATALOAD
+16 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+46 SWAP1
+47 DIV
+48 PUSH4 0xffffffff
+53 AND
+54 DUP1
+55 PUSH4 0x06661abd
+60 EQ
+61 PUSH2 0x0051
+64 JUMPI
+65 DUP1
+66 PUSH4 0x83f12fec
+71 EQ
+72 PUSH2 0x007c
+75 JUMPI
+76 JUMPDEST
+77 PUSH1 0x00
+79 DUP1
+80 REVERT
+81 JUMPDEST
+82 CALLVALUE
+83 DUP1
+84 ISZERO
+85 PUSH2 0x005d
+88 JUMPI
+89 PUSH1 0x00
+91 DUP1
+92 REVERT
+93 JUMPDEST
+94 POP
+95 PUSH2 0x0066
+98 PUSH2 0x0104
+101 JUMP
+102 JUMPDEST
+103 PUSH1 0x40
+105 MLOAD
+106 DUP1
+107 DUP3
+108 DUP2
+109 MSTORE
+110 PUSH1 0x20
+112 ADD
+113 SWAP2
+114 POP
+115 POP
+116 PUSH1 0x40
+118 MLOAD
+119 DUP1
+120 SWAP2
+121 SUB
+122 SWAP1
+123 RETURN
+124 JUMPDEST
+125 CALLVALUE
+126 DUP1
+127 ISZERO
+128 PUSH2 0x0088
+131 JUMPI
+132 PUSH1 0x00
+134 DUP1
+135 REVERT
+136 JUMPDEST
+137 POP
+138 PUSH2 0x00ea
+141 PUSH1 0x04
+143 DUP1
+144 CALLDATASIZE
+145 SUB
+146 DUP2
+147 ADD
+148 SWAP1
+149 DUP1
+150 DUP1
+151 CALLDATALOAD
+152 SWAP1
+153 PUSH1 0x20
+155 ADD
+156 SWAP1
+157 DUP3
+158 ADD
+159 DUP1
+160 CALLDATALOAD
+161 SWAP1
+162 PUSH1 0x20
+164 ADD
+165 SWAP1
+166 DUP1
+167 DUP1
+168 PUSH1 0x20
+170 MUL
+171 PUSH1 0x20
+173 ADD
+174 PUSH1 0x40
+176 MLOAD
+177 SWAP1
+178 DUP2
+179 ADD
+180 PUSH1 0x40
+182 MSTORE
+183 DUP1
+184 SWAP4
+185 SWAP3
+186 SWAP2
+187 SWAP1
+188 DUP2
+189 DUP2
+190 MSTORE
+191 PUSH1 0x20
+193 ADD
+194 DUP4
+195 DUP4
+196 PUSH1 0x20
+198 MUL
+199 DUP1
+200 DUP3
+201 DUP5
+202 CALLDATACOPY
+203 DUP3
+204 ADD
+205 SWAP2
+206 POP
+207 POP
+208 POP
+209 POP
+210 POP
+211 POP
+212 SWAP2
+213 SWAP3
+214 SWAP2
+215 SWAP3
+216 SWAP1
+217 DUP1
+218 CALLDATALOAD
+219 SWAP1
+220 PUSH1 0x20
+222 ADD
+223 SWAP1
+224 SWAP3
+225 SWAP2
+226 SWAP1
+227 POP
+228 POP
+229 POP
+230 PUSH2 0x010a
+233 JUMP
+234 JUMPDEST
+235 PUSH1 0x40
+237 MLOAD
+238 DUP1
+239 DUP3
+240 ISZERO
+241 ISZERO
+242 ISZERO
+243 ISZERO
+244 DUP2
+245 MSTORE
+246 PUSH1 0x20
+248 ADD
+249 SWAP2
+250 POP
+251 POP
+252 PUSH1 0x40
+254 MLOAD
+255 DUP1
+256 SWAP2
+257 SUB
+258 SWAP1
+259 RETURN
+260 JUMPDEST
+261 PUSH1 0x00
+263 SLOAD
+264 DUP2
+265 JUMP
+266 JUMPDEST
+267 PUSH1 0x00
+269 DUP1
+270 PUSH1 0x00
+272 DUP5
+273 MLOAD
+274 SWAP2
+275 POP
+276 DUP4
+277 DUP3
+278 MUL
+279 SWAP1
+280 POP
+281 PUSH1 0x00
+283 DUP3
+284 GT
+285 DUP1
+286 ISZERO
+287 PUSH2 0x0129
+290 JUMPI
+291 POP
+292 PUSH1 0x14
+294 DUP3
+295 GT
+296 ISZERO
+297 JUMPDEST
+298 ISZERO
+299 ISZERO
+300 PUSH2 0x0134
+303 JUMPI
+304 PUSH1 0x00
+306 DUP1
+307 REVERT
+308 JUMPDEST
+309 DUP1
+310 PUSH1 0x01
+312 PUSH1 0x00
+314 CALLER
+315 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+336 AND
+337 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+358 AND
+359 DUP2
+360 MSTORE
+361 PUSH1 0x20
+363 ADD
+364 SWAP1
+365 DUP2
+366 MSTORE
+367 PUSH1 0x20
+369 ADD
+370 PUSH1 0x00
+372 SHA3
+373 PUSH1 0x00
+375 DUP3
+376 DUP3
+377 SLOAD
+378 SUB
+379 SWAP3
+380 POP
+381 POP
+382 DUP2
+383 SWAP1
+384 SSTORE
+385 POP
+386 PUSH1 0x01
+388 SWAP3
+389 POP
+390 POP
+391 POP
+392 SWAP3
+393 SWAP2
+394 POP
+395 POP
+396 JUMP
+397 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html
new file mode 100644
index 00000000..bc273a9e
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/environments.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json
new file mode 100644
index 00000000..d651908c
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "", "description": "The subtraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 649, "contract": "Unknown", "debug": "", "description": "The subtraction can result in an integer underflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Underflow", "type": "Warning"}, {"address": 725, "contract": "Unknown", "debug": "", "description": "The arithmetic operation can result in integer overflow.\n", "function": "sendeth(address,uint256)", "swc_id": "101", "title": "Integer Overflow", "type": "Warning"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown
new file mode 100644
index 00000000..f042f183
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.markdown
@@ -0,0 +1,34 @@
+# Analysis results for test-filename.sol
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 567
+
+### Description
+
+The subtraction can result in an integer underflow.
+
+## Integer Underflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 649
+
+### Description
+
+The subtraction can result in an integer underflow.
+
+## Integer Overflow
+- SWC ID: 101
+- Type: Warning
+- Contract: Unknown
+- Function name: `sendeth(address,uint256)`
+- PC address: 725
+
+### Description
+
+The arithmetic operation can result in integer overflow.
diff --git a/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text
new file mode 100644
index 00000000..ad480ffd
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/overflow.sol.o.text
@@ -0,0 +1,30 @@
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 567
+The subtraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Underflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 649
+The subtraction can result in an integer underflow.
+
+--------------------
+
+==== Integer Overflow ====
+SWC ID: 101
+Type: Warning
+Contract: Unknown
+Function name: sendeth(address,uint256)
+PC address: 725
+The arithmetic operation can result in integer overflow.
+
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm
new file mode 100644
index 00000000..13a426cc
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.easm
@@ -0,0 +1,129 @@
+0 PUSH1 0x60
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH2 0x004c
+12 JUMPI
+13 PUSH1 0x00
+15 CALLDATALOAD
+16 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+46 SWAP1
+47 DIV
+48 PUSH4 0xffffffff
+53 AND
+54 DUP1
+55 PUSH4 0x633ab5e0
+60 EQ
+61 PUSH2 0x0051
+64 JUMPI
+65 DUP1
+66 PUSH4 0xe3bea282
+71 EQ
+72 PUSH2 0x0066
+75 JUMPI
+76 JUMPDEST
+77 PUSH1 0x00
+79 DUP1
+80 REVERT
+81 JUMPDEST
+82 CALLVALUE
+83 ISZERO
+84 PUSH2 0x005c
+87 JUMPI
+88 PUSH1 0x00
+90 DUP1
+91 REVERT
+92 JUMPDEST
+93 PUSH2 0x0064
+96 PUSH2 0x007b
+99 JUMP
+100 JUMPDEST
+101 STOP
+102 JUMPDEST
+103 CALLVALUE
+104 ISZERO
+105 PUSH2 0x0071
+108 JUMPI
+109 PUSH1 0x00
+111 DUP1
+112 REVERT
+113 JUMPDEST
+114 PUSH2 0x0079
+117 PUSH2 0x00d4
+120 JUMP
+121 JUMPDEST
+122 STOP
+123 JUMPDEST
+124 PUSH1 0x00
+126 DUP1
+127 SWAP1
+128 SLOAD
+129 SWAP1
+130 PUSH2 0x0100
+133 EXP
+134 SWAP1
+135 DIV
+136 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+157 AND
+158 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+179 AND
+180 PUSH1 0x40
+182 MLOAD
+183 PUSH1 0x00
+185 PUSH1 0x40
+187 MLOAD
+188 DUP1
+189 DUP4
+190 SUB
+191 DUP2
+192 PUSH1 0x00
+194 DUP7
+195 GAS
+196 CALL
+197 SWAP2
+198 POP
+199 POP
+200 ISZERO
+201 ISZERO
+202 PUSH2 0x00d2
+205 JUMPI
+206 PUSH1 0x00
+208 DUP1
+209 REVERT
+210 JUMPDEST
+211 JUMP
+212 JUMPDEST
+213 PUSH1 0x00
+215 DUP1
+216 SWAP1
+217 SLOAD
+218 SWAP1
+219 PUSH2 0x0100
+222 EXP
+223 SWAP1
+224 DIV
+225 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+246 AND
+247 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+268 AND
+269 PUSH1 0x40
+271 MLOAD
+272 PUSH1 0x00
+274 PUSH1 0x40
+276 MLOAD
+277 DUP1
+278 DUP4
+279 SUB
+280 DUP2
+281 PUSH1 0x00
+283 DUP7
+284 GAS
+285 CALL
+286 SWAP2
+287 POP
+288 POP
+289 POP
+290 JUMP
+291 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html
new file mode 100644
index 00000000..759f6b55
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+
Mythril / Ethereum LASER Symbolic VM
+
+
+
+
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json
new file mode 100644
index 00000000..81ee3cb3
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.json
@@ -0,0 +1 @@
+{"error": null, "issues": [{"address": 196, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0x633ab5e0", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 285, "contract": "Unknown", "debug": "", "description": "This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.", "function": "_function_0xe3bea282", "swc_id": "107", "title": "Message call to external contract", "type": "Informational"}, {"address": 290, "contract": "Unknown", "debug": "", "description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.", "function": "_function_0xe3bea282", "swc_id": "104", "title": "Unchecked CALL return value", "type": "Informational"}], "success": true}
\ No newline at end of file
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown
new file mode 100644
index 00000000..f3a058bd
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.markdown
@@ -0,0 +1,34 @@
+# Analysis results for test-filename.sol
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0x633ab5e0`
+- PC address: 196
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Message call to external contract
+- SWC ID: 107
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe3bea282`
+- PC address: 285
+
+### Description
+
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+
+## Unchecked CALL return value
+- SWC ID: 104
+- Type: Informational
+- Contract: Unknown
+- Function name: `_function_0xe3bea282`
+- PC address: 290
+
+### Description
+
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
diff --git a/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text
new file mode 100644
index 00000000..2a8b1470
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/returnvalue.sol.o.text
@@ -0,0 +1,27 @@
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0x633ab5e0
+PC address: 196
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Message call to external contract ====
+SWC ID: 107
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe3bea282
+PC address: 285
+This contract executes a message call to to another contract. Make sure that the called contract is trusted and does not execute user-supplied code.
+--------------------
+
+==== Unchecked CALL return value ====
+SWC ID: 104
+Type: Informational
+Contract: Unknown
+Function name: _function_0xe3bea282
+PC address: 290
+The return value of an external call is not checked. Note that execution continue even if the called contract throws.
+--------------------
+
diff --git a/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm
new file mode 100644
index 00000000..892e7787
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.easm
@@ -0,0 +1,58 @@
+0 PUSH1 0x60
+2 PUSH1 0x40
+4 MSTORE
+5 PUSH1 0x04
+7 CALLDATASIZE
+8 LT
+9 PUSH1 0x3f
+11 JUMPI
+12 PUSH1 0x00
+14 CALLDATALOAD
+15 PUSH29 0x0100000000000000000000000000000000000000000000000000000000
+45 SWAP1
+46 DIV
+47 PUSH4 0xffffffff
+52 AND
+53 DUP1
+54 PUSH4 0xcbf0b0c0
+59 EQ
+60 PUSH1 0x44
+62 JUMPI
+63 JUMPDEST
+64 PUSH1 0x00
+66 DUP1
+67 REVERT
+68 JUMPDEST
+69 CALLVALUE
+70 ISZERO
+71 PUSH1 0x4e
+73 JUMPI
+74 PUSH1 0x00
+76 DUP1
+77 REVERT
+78 JUMPDEST
+79 PUSH1 0x78
+81 PUSH1 0x04
+83 DUP1
+84 DUP1
+85 CALLDATALOAD
+86 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+107 AND
+108 SWAP1
+109 PUSH1 0x20
+111 ADD
+112 SWAP1
+113 SWAP2
+114 SWAP1
+115 POP
+116 POP
+117 PUSH1 0x7a
+119 JUMP
+120 JUMPDEST
+121 STOP
+122 JUMPDEST
+123 DUP1
+124 PUSH20 0xffffffffffffffffffffffffffffffffffffffff
+145 AND
+146 SUICIDE
+147 STOP
diff --git a/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html
new file mode 100644
index 00000000..173d77ea
--- /dev/null
+++ b/tests/testdata/outputs_expected/outputs_current/suicide.sol.o.graph.html
@@ -0,0 +1,62 @@
+
+
+
+ Call Graph
+
+
+
+
+
+
+
+
+
+
+