Merge remote-tracking branch 'upstream/master' into features/hooks

pull/328/head
Joran Honig 6 years ago
commit 95dfd8fe56
  1. 2
      mythril/analysis/report.py
  2. 15
      mythril/analysis/solver.py
  3. 47
      mythril/laser/ethereum/instructions.py
  4. 3
      mythril/laser/ethereum/natives.py
  5. 14
      mythril/laser/ethereum/svm.py
  6. 5
      mythril/laser/ethereum/util.py
  7. 4
      requirements.txt
  8. 4
      setup.py
  9. 2
      tests/testdata/outputs_expected/calls.sol.o.json
  10. 23
      tests/testdata/outputs_expected/ether_send.sol.o.json
  11. 2
      tests/testdata/outputs_expected/exceptions.sol.o.json
  12. 2
      tests/testdata/outputs_expected/kinds_of_calls.sol.o.json
  13. 15
      tests/testdata/outputs_expected/metacoin.sol.o.json
  14. 2
      tests/testdata/outputs_expected/multi_contracts.sol.o.json
  15. 2
      tests/testdata/outputs_expected/origin.sol.o.json
  16. 31
      tests/testdata/outputs_expected/overflow.sol.o.json
  17. 2
      tests/testdata/outputs_expected/returnvalue.sol.o.json
  18. 2
      tests/testdata/outputs_expected/suicide.sol.o.json
  19. 31
      tests/testdata/outputs_expected/underflow.sol.o.json

@ -22,7 +22,7 @@ class Issue:
@property @property
def as_dict(self): def as_dict(self):
issue = {'title': self.title, 'description':self.description, 'function': self.function, 'type': self.type, 'address': self.address, 'debug': self.debug} issue = {'title': self.title, 'contract': self.contract, 'description': self.description, 'function': self.function, 'type': self.type, 'address': self.address, 'debug': self.debug}
if self.filename and self.lineno: if self.filename and self.lineno:
issue['filename'] = self.filename issue['filename'] = self.filename

@ -1,6 +1,6 @@
from z3 import Solver, simplify, sat from z3 import Solver, simplify, sat, unknown
from mythril.exceptions import UnsatError from mythril.exceptions import UnsatError
import logging
def get_model(constraints): def get_model(constraints):
s = Solver() s = Solver()
@ -8,13 +8,12 @@ def get_model(constraints):
for constraint in constraints: for constraint in constraints:
s.add(constraint) s.add(constraint)
result = s.check()
if (s.check() == sat): if result == sat:
return s.model() return s.model()
elif result == unknown:
else: logging.info("Timeout encountered while solving expression using z3")
raise UnsatError raise UnsatError
def pretty_print_model(model): def pretty_print_model(model):

@ -157,7 +157,7 @@ class Instruction:
result = Concat(BitVecVal(0, 248), Extract(offset + 7, offset, op1)) result = Concat(BitVecVal(0, 248), Extract(offset + 7, offset, op1))
except AttributeError: except AttributeError:
logging.debug("BYTE: Unsupported symbolic byte offset") logging.debug("BYTE: Unsupported symbolic byte offset")
result = BitVec(str(simplify(op1)) + "_" + str(simplify(op0)), 256) result = BitVec(str(simplify(op1)) + "[" + str(simplify(op0)) + "]", 256)
mstate.stack.append(simplify(result)) mstate.stack.append(simplify(result))
return [global_state] return [global_state]
@ -219,7 +219,7 @@ class Instruction:
base, exponent = util.pop_bitvec(state), util.pop_bitvec(state) base, exponent = util.pop_bitvec(state), util.pop_bitvec(state)
if (type(base) != BitVecNumRef) or (type(exponent) != BitVecNumRef): if (type(base) != BitVecNumRef) or (type(exponent) != BitVecNumRef):
state.stack.append(BitVec(str(base) + "_EXP_" + str(exponent), 256)) state.stack.append(BitVec("(" + str(simplify(base)) + ")^(" + str(simplify(exponent)) + ")", 256))
elif base.as_long() == 2: elif base.as_long() == 2:
if exponent.as_long() == 0: if exponent.as_long() == 0:
state.stack.append(BitVecVal(1, 256)) state.stack.append(BitVecVal(1, 256))
@ -330,13 +330,13 @@ class Instruction:
b = environment.calldata[offset] b = environment.calldata[offset]
except AttributeError: except AttributeError:
logging.debug("CALLDATALOAD: Unsupported symbolic index") logging.debug("CALLDATALOAD: Unsupported symbolic index")
state.stack.append( state.stack.append(BitVec(
BitVec("calldata_" + str(environment.active_account.contract_name) + "_" + str(op0), 256)) "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
return [global_state] return [global_state]
except IndexError: except IndexError:
logging.debug("Calldata not set, using symbolic variable instead") logging.debug("Calldata not set, using symbolic variable instead")
state.stack.append( state.stack.append(BitVec(
BitVec("calldata_" + str(environment.active_account.contract_name) + "_" + str(op0), 256)) "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
return [global_state] return [global_state]
if type(b) == int: if type(b) == int:
@ -350,12 +350,12 @@ class Instruction:
state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256)) state.stack.append(BitVecVal(int.from_bytes(val, byteorder='big'), 256))
# FIXME: broad exception catch # FIXME: broad exception catch
except: except:
state.stack.append( state.stack.append(BitVec(
BitVec("calldata_" + str(environment.active_account.contract_name) + "_" + str(op0), 256)) "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
else: else:
# symbolic variable # symbolic variable
state.stack.append( state.stack.append(BitVec(
BitVec("calldata_" + str(environment.active_account.contract_name) + "_" + str(op0), 256)) "calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
return [global_state] return [global_state]
@ -382,24 +382,29 @@ class Instruction:
logging.debug("Unsupported symbolic memory offset in CALLDATACOPY") logging.debug("Unsupported symbolic memory offset in CALLDATACOPY")
return [global_state] return [global_state]
dstart_sym = False
try: try:
dstart = util.get_concrete_int(op1) dstart = util.get_concrete_int(op1)
# FIXME: broad exception catch # FIXME: broad exception catch
except: except:
logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY") logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY")
state.mem_extend(mstart, 1) dstart = simplify(op1)
state.memory[mstart] = BitVec("calldata_" + str(environment.active_account.contract_name) + "_cpy", dstart_sym = True
256)
return [global_state]
size_sym = False
try: try:
size = util.get_concrete_int(op2) size = util.get_concrete_int(op2)
# FIXME: broad exception catch # FIXME: broad exception catch
except: except:
logging.debug("Unsupported symbolic size in CALLDATACOPY") logging.debug("Unsupported symbolic size in CALLDATACOPY")
size = simplify(op2)
size_sym = True
if dstart_sym or size_sym:
state.mem_extend(mstart, 1) state.mem_extend(mstart, 1)
state.memory[mstart] = BitVec( state.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "_" + str(dstart), 256) "calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state] return [global_state]
if size > 0: if size > 0:
@ -410,7 +415,8 @@ class Instruction:
logging.debug("Memory allocation error: mstart = " + str(mstart) + ", size = " + str(size)) logging.debug("Memory allocation error: mstart = " + str(mstart) + ", size = " + str(size))
state.mem_extend(mstart, 1) state.mem_extend(mstart, 1)
state.memory[mstart] = BitVec( state.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "_" + str(dstart), 256) "calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state] return [global_state]
try: try:
@ -423,7 +429,8 @@ class Instruction:
logging.debug("Exception copying calldata to memory") logging.debug("Exception copying calldata to memory")
state.memory[mstart] = BitVec( state.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "_" + str(dstart), 256) "calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state] return [global_state]
# Environment # Environment
@ -474,7 +481,7 @@ class Instruction:
# FIXME: broad exception catch # FIXME: broad exception catch
except: except:
# Can't access symbolic memory offsets # Can't access symbolic memory offsets
state.stack.append(BitVec("KECCAC_mem_" + str(op0) + ")", 256)) state.stack.append(BitVec("KECCAC_mem[" + str(simplify(op0)) + "]", 256))
return [global_state] return [global_state]
try: try:
@ -594,14 +601,14 @@ class Instruction:
offset = util.get_concrete_int(op0) offset = util.get_concrete_int(op0)
except AttributeError: except AttributeError:
logging.debug("Can't MLOAD from symbolic index") logging.debug("Can't MLOAD from symbolic index")
data = BitVec("mem_" + str(op0), 256) data = BitVec("mem[" + str(simplify(op0)) + "]", 256)
state.stack.append(data) state.stack.append(data)
return [global_state] return [global_state]
try: try:
data = util.concrete_int_from_bytes(state.memory, offset) data = util.concrete_int_from_bytes(state.memory, offset)
except IndexError: # Memory slot not allocated except IndexError: # Memory slot not allocated
data = BitVec("mem_" + str(offset), 256) data = BitVec("mem[" + str(offset) + "]", 256)
except TypeError: # Symbolic memory except TypeError: # Symbolic memory
data = state.memory[offset] data = state.memory[offset]

@ -6,7 +6,8 @@ import hashlib
import coincurve import coincurve
from py_ecc.secp256k1 import N as secp256k1n from py_ecc.secp256k1 import N as secp256k1n
from mythril.laser.ethereum.util import ALL_BYTES, bytearray_to_int, concrete_int_to_bytes, sha3, zpad from rlp.utils import ALL_BYTES
from mythril.laser.ethereum.util import bytearray_to_int, concrete_int_to_bytes, sha3, zpad
def int_to_32bytes(i): #used because int can't fit as bytes function's input def int_to_32bytes(i): #used because int can't fit as bytes function's input

@ -4,6 +4,7 @@ from mythril.laser.ethereum.state import GlobalState, Environment, CalldataType,
from mythril.laser.ethereum.instructions import Instruction from mythril.laser.ethereum.instructions import Instruction
from mythril.laser.ethereum.cfg import NodeFlags, Node, Edge, JumpType from mythril.laser.ethereum.cfg import NodeFlags, Node, Edge, JumpType
from mythril.laser.ethereum.strategy.basic import DepthFirstSearchStrategy from mythril.laser.ethereum.strategy.basic import DepthFirstSearchStrategy
from functools import reduce
TT256 = 2 ** 256 TT256 = 2 ** 256
TT256M1 = 2 ** 256 - 1 TT256M1 = 2 ** 256 - 1
@ -23,6 +24,7 @@ class LaserEVM:
Laser EVM class Laser EVM class
""" """
def __init__(self, accounts, dynamic_loader=None, max_depth=22): def __init__(self, accounts, dynamic_loader=None, max_depth=22):
self.instructions_covered = []
self.accounts = accounts self.accounts = accounts
self.nodes = {} self.nodes = {}
@ -54,7 +56,8 @@ class LaserEVM:
calldata_type=CalldataType.SYMBOLIC, calldata_type=CalldataType.SYMBOLIC,
) )
# TODO: contact name fix self.instructions_covered = [False for _ in environment.code.instruction_list]
initial_node = Node(environment.active_account.contract_name) initial_node = Node(environment.active_account.contract_name)
self.nodes[initial_node.uid] = initial_node self.nodes[initial_node.uid] = initial_node
@ -66,6 +69,7 @@ class LaserEVM:
self._sym_exec() self._sym_exec()
logging.info("Execution complete") logging.info("Execution complete")
logging.info("Achieved {0:.3g}% coverage".format(self.coverage))
logging.info("%d nodes, %d edges, %d total states", len(self.nodes), len(self.edges), self.total_states) logging.info("%d nodes, %d edges, %d total states", len(self.nodes), len(self.edges), self.total_states)
def _sym_exec(self): def _sym_exec(self):
@ -84,6 +88,7 @@ class LaserEVM:
def execute_state(self, global_state): def execute_state(self, global_state):
instructions = global_state.environment.code.instruction_list instructions = global_state.environment.code.instruction_list
op_code = instructions[global_state.mstate.pc]['opcode'] op_code = instructions[global_state.mstate.pc]['opcode']
self.instructions_covered[global_state.mstate.pc] = True
self._execute_pre_hook(op_code, global_state) self._execute_pre_hook(op_code, global_state)
new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(global_state) new_global_states = Instruction(op_code, self.dynamic_loader).evaluate(global_state)
@ -136,9 +141,16 @@ class LaserEVM:
new_node.flags |= NodeFlags.FUNC_ENTRY new_node.flags |= NodeFlags.FUNC_ENTRY
logging.info("- Entering function " + environment.active_account.contract_name + ":" + new_node.function_name) logging.info("- Entering function " + environment.active_account.contract_name + ":" + new_node.function_name)
elif address == 0:
environment.active_function_name = "fallback"
new_node.function_name = environment.active_function_name new_node.function_name = environment.active_function_name
@property
def coverage(self):
return reduce(lambda sum_, val: sum_ + 1 if val else sum_, self.instructions_covered) / float(
len(self.instructions_covered)) * 100
def _execute_pre_hook(self, op_code, global_state): def _execute_pre_hook(self, op_code, global_state):
if op_code not in self.pre_hooks.keys(): if op_code not in self.pre_hooks.keys():
return return

@ -10,11 +10,6 @@ TT256M1 = 2 ** 256 - 1
TT255 = 2 ** 255 TT255 = 2 ** 255
ALL_BYTES = tuple(
struct.pack('B', i)
for i in range(256)
)
def zpad(x, l): def zpad(x, l):

@ -2,7 +2,7 @@ configparser>=3.5.0
coverage coverage
eth_abi>=1.0.0 eth_abi>=1.0.0
eth-account>=0.1.0a2 eth-account>=0.1.0a2
ethereum==2.3.1 ethereum>=2.3.2
eth-hash>=0.1.0 eth-hash>=0.1.0
eth-keyfile>=0.5.1 eth-keyfile>=0.5.1
eth-keys>=0.2.0b3 eth-keys>=0.2.0b3
@ -19,5 +19,5 @@ pytest>=3.6.0
pytest-cov pytest-cov
pytest_mock pytest_mock
requests requests
rlp<1.0.0 rlp>=1.0.1
z3-solver>=4.5 z3-solver>=4.5

@ -305,7 +305,7 @@ setup(
packages=find_packages(exclude=['contrib', 'docs', 'tests']), packages=find_packages(exclude=['contrib', 'docs', 'tests']),
install_requires=[ install_requires=[
'ethereum==2.3.1', 'ethereum>=2.3.2',
'z3-solver>=4.5', 'z3-solver>=4.5',
'requests', 'requests',
'py-solc', 'py-solc',
@ -320,7 +320,7 @@ setup(
'eth-tester>=0.1.0b21', 'eth-tester>=0.1.0b21',
'coverage', 'coverage',
'jinja2>=2.9', 'jinja2>=2.9',
'rlp<1.0.0', 'rlp>=1.0.1',
'py-flags', 'py-flags',
'mock', 'mock',
'configparser>=3.5.0', 'configparser>=3.5.0',

@ -1 +1 @@
{"error": null, "issues": [{"address": 661, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 661, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}

@ -1,22 +1 @@
{ {"error": null, "issues": [{"address": 722, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}
"success": true,
"error": null,
"issues": [
{
"title": "Ether send",
"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()",
"type": "Warning",
"address": 722,
"debug": "<DEBUG-DATA>"
},
{
"title": "Integer Overflow",
"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()",
"type": "Warning",
"address": 883,
"debug": "<DEBUG-DATA>"
}
]
}

@ -1 +1 @@
{"error": null, "issues": [{"address": 446, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 446, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}

@ -1 +1 @@
{"error": null, "issues": [{"address": 626, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 626, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}

@ -1,14 +1 @@
{ {"error": null, "issues": [{"address": 498, "contract": "Unknown", "debug": "<DEBUG-DATA>", "description": "A possible integer overflow exists in the function `sendToken(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.", "function": "sendToken(address,uint256)", "title": "Integer Overflow", "type": "Warning"}], "success": true}
"success": true,
"error": null,
"issues": [
{
"title": "Integer Overflow",
"description": "A possible integer overflow exists in the function `sendToken(address,uint256)`.\nThe addition or multiplication may result in a value higher than the maximum representable integer.",
"function": "sendToken(address,uint256)",
"type": "Warning",
"address": 498,
"debug": "<DEBUG-DATA>"
}
]
}

@ -1 +1 @@
{"error": null, "issues": [{"address": 142, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 142, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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}

@ -1 +1 @@
{"error": null, "issues": [{"address": 317, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 317, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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}

@ -1,30 +1 @@
{ {"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}
"success": true,
"error": null,
"issues": [
{
"title": "Integer Underflow",
"description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.",
"function": "sendeth(address,uint256)",
"type": "Warning",
"address": 649,
"debug": "<DEBUG-DATA>"
},
{
"title": "Integer Overflow",
"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)",
"type": "Warning",
"address": 725,
"debug": "<DEBUG-DATA>"
},
{
"title": "Integer Underflow",
"description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.",
"function": "sendeth(address,uint256)",
"type": "Warning",
"address": 567,
"debug": "<DEBUG-DATA>"
}
]
}

@ -1 +1 @@
{"error": null, "issues": [{"address": 196, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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, "debug": "<DEBUG-DATA>", "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} {"error": null, "issues": [{"address": 196, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}

@ -1 +1 @@
{"error": null, "issues": [{"address": 146, "debug": "<DEBUG-DATA>", "description": "The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.\n\nIt seems that this function can be called without restrictions.", "function": "_function_0xcbf0b0c0", "title": "Unchecked SUICIDE", "type": "Warning"}], "success": true} {"error": null, "issues": [{"address": 146, "contract": "Unknown", "debug": "<DEBUG-DATA>", "description": "The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.\n\nIt seems that this function can be called without restrictions.", "function": "_function_0xcbf0b0c0", "title": "Unchecked SUICIDE", "type": "Warning"}], "success": true}

@ -1,30 +1 @@
{ {"error": null, "issues": [{"address": 567, "contract": "Unknown", "debug": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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": "<DEBUG-DATA>", "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}
"success": true,
"error": null,
"issues": [
{
"title": "Integer Underflow",
"description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.",
"function": "sendeth(address,uint256)",
"type": "Warning",
"address": 649,
"debug": "<DEBUG-DATA>"
},
{
"title": "Integer Overflow",
"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)",
"type": "Warning",
"address": 725,
"debug": "<DEBUG-DATA>"
},
{
"title": "Integer Underflow",
"description": "A possible integer underflow exists in the function `sendeth(address,uint256)`.\nThe subtraction may result in a value < 0.",
"function": "sendeth(address,uint256)",
"type": "Warning",
"address": 567,
"debug": "<DEBUG-DATA>"
}
]
}
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