Merge branch 'master' of github.com:ConsenSys/mythril

pull/336/head
Nikhil Parasaram 6 years ago
commit 07ecc62aac
  1. 3
      .gitignore
  2. 4
      mythril/analysis/callgraph.py
  3. 2
      mythril/analysis/modules/integer.py
  4. 2
      mythril/analysis/modules/transaction_order_independence.py
  5. 4
      mythril/analysis/ops.py
  6. 6
      mythril/analysis/report.py
  7. 13
      mythril/analysis/solver.py
  8. 8
      mythril/analysis/traceexplore.py
  9. 38
      mythril/disassembler/disassembly.py
  10. 157
      mythril/ether/contractstorage.py
  11. 2
      mythril/ether/soliditycontract.py
  12. 40
      mythril/interfaces/cli.py
  13. 145
      mythril/laser/ethereum/call.py
  14. 65
      mythril/laser/ethereum/cfg.py
  15. 74
      mythril/laser/ethereum/gascost.py
  16. 994
      mythril/laser/ethereum/instructions.py
  17. 14
      mythril/laser/ethereum/natives.py
  18. 151
      mythril/laser/ethereum/state.py
  19. 0
      mythril/laser/ethereum/strategy/__init__.py
  20. 54
      mythril/laser/ethereum/strategy/basic.py
  21. 1238
      mythril/laser/ethereum/svm.py
  22. 3
      mythril/laser/ethereum/taint_analysis.py
  23. 0
      mythril/laser/ethereum/util.py
  24. 48
      mythril/leveldb/client.py
  25. 8
      mythril/leveldb/state.py
  26. 136
      mythril/mythril.py
  27. 242
      mythril/support/signatures.py
  28. 8
      mythril/support/truffle.py
  29. 8
      requirements.txt
  30. 47
      setup.py
  31. 12
      tests/analysis/test_delegatecall.py
  32. 32
      tests/contractstorage_test.py
  33. 18
      tests/native_test.py
  34. 12
      tests/svm_test.py
  35. 4
      tests/taint_result_test.py
  36. 17
      tests/taint_runner_test.py
  37. 202
      tests/testdata/outputs_expected/calls.sol.graph.html
  38. 4
      tests/testdata/outputs_expected/calls.sol.o.graph.html
  39. 87
      tests/testdata/outputs_expected/calls.sol.o.json
  40. 22
      tests/testdata/outputs_expected/calls.sol.o.markdown
  41. 22
      tests/testdata/outputs_expected/calls.sol.o.text
  42. 28
      tests/testdata/outputs_expected/ether_send.sol.json
  43. 4
      tests/testdata/outputs_expected/ether_send.sol.o.graph.html
  44. 23
      tests/testdata/outputs_expected/ether_send.sol.o.json
  45. 252
      tests/testdata/outputs_expected/exceptions.sol.graph.html
  46. 4
      tests/testdata/outputs_expected/exceptions.sol.o.graph.html
  47. 39
      tests/testdata/outputs_expected/exceptions.sol.o.json
  48. 178
      tests/testdata/outputs_expected/kinds_of_calls.sol.graph.html
  49. 4
      tests/testdata/outputs_expected/kinds_of_calls.sol.o.graph.html
  50. 23
      tests/testdata/outputs_expected/kinds_of_calls.sol.o.json
  51. 24
      tests/testdata/outputs_expected/kinds_of_calls.sol.o.markdown
  52. 18
      tests/testdata/outputs_expected/kinds_of_calls.sol.o.text
  53. 150
      tests/testdata/outputs_expected/metacoin.sol.graph.html
  54. 4
      tests/testdata/outputs_expected/metacoin.sol.o.graph.html
  55. 15
      tests/testdata/outputs_expected/metacoin.sol.o.json
  56. 134
      tests/testdata/outputs_expected/multi_contracts.sol.graph.html
  57. 17
      tests/testdata/outputs_expected/multi_contracts.sol.json
  58. 18
      tests/testdata/outputs_expected/multi_contracts.sol.markdown
  59. 4
      tests/testdata/outputs_expected/multi_contracts.sol.o.graph.html
  60. 15
      tests/testdata/outputs_expected/multi_contracts.sol.o.json
  61. 14
      tests/testdata/outputs_expected/multi_contracts.sol.text
  62. 4
      tests/testdata/outputs_expected/nonascii.sol.o.graph.html
  63. 4
      tests/testdata/outputs_expected/origin.sol.o.graph.html
  64. 15
      tests/testdata/outputs_expected/origin.sol.o.json
  65. 39
      tests/testdata/outputs_expected/overflow.sol.json
  66. 52
      tests/testdata/outputs_expected/overflow.sol.markdown
  67. 4
      tests/testdata/outputs_expected/overflow.sol.o.graph.html
  68. 31
      tests/testdata/outputs_expected/overflow.sol.o.json
  69. 42
      tests/testdata/outputs_expected/overflow.sol.text
  70. 146
      tests/testdata/outputs_expected/returnvalue.sol.graph.html
  71. 4
      tests/testdata/outputs_expected/returnvalue.sol.o.graph.html
  72. 31
      tests/testdata/outputs_expected/returnvalue.sol.o.json
  73. 2
      tests/testdata/outputs_expected/returnvalue.sol.o.markdown
  74. 2
      tests/testdata/outputs_expected/returnvalue.sol.o.text
  75. 166
      tests/testdata/outputs_expected/rubixi.sol.o.json
  76. 238
      tests/testdata/outputs_expected/rubixi.sol.o.markdown
  77. 177
      tests/testdata/outputs_expected/rubixi.sol.o.text
  78. 17
      tests/testdata/outputs_expected/suicide.sol.json
  79. 19
      tests/testdata/outputs_expected/suicide.sol.markdown
  80. 4
      tests/testdata/outputs_expected/suicide.sol.o.graph.html
  81. 15
      tests/testdata/outputs_expected/suicide.sol.o.json
  82. 15
      tests/testdata/outputs_expected/suicide.sol.text
  83. 168
      tests/testdata/outputs_expected/underflow.sol.graph.html
  84. 39
      tests/testdata/outputs_expected/underflow.sol.json
  85. 52
      tests/testdata/outputs_expected/underflow.sol.markdown
  86. 4
      tests/testdata/outputs_expected/underflow.sol.o.graph.html
  87. 31
      tests/testdata/outputs_expected/underflow.sol.o.json
  88. 42
      tests/testdata/outputs_expected/underflow.sol.text
  89. 46
      tests/testdata/outputs_expected/weak_random.sol.o.json
  90. 62
      tests/testdata/outputs_expected/weak_random.sol.o.markdown
  91. 46
      tests/testdata/outputs_expected/weak_random.sol.o.text

3
.gitignore vendored

@ -177,3 +177,6 @@ coverage_html_report/
tests/testdata/outputs_current/
tests/testdata/outputs_current_laser_result/
tests/mythril_dir/signatures.json
# VSCode
.vscode

@ -134,8 +134,8 @@ def extract_edges(statespace):
label = re.sub(r'([^_])([\d]{2}\d+)', lambda m: m.group(1) + hex(int(m.group(2))), label)
edges.append({
'from': str(edge.as_dict()['from']),
'to': str(edge.as_dict()['to']),
'from': str(edge.as_dict['from']),
'to': str(edge.as_dict['to']),
'arrows': 'to',
'label': label,
'smooth': {'type': 'cubicBezier'}

@ -85,7 +85,7 @@ 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(node.contract_name, node.function_name, instruction['address'], "Integer Overflow", "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(

@ -111,7 +111,7 @@ def _get_influencing_sstores(statespace, interesting_storages):
for sstore_state, node in _get_states_with_opcode(statespace, 'SSTORE'):
index, value = sstore_state.mstate.stack[-1], sstore_state.mstate.stack[-2]
try:
index = helper.get_concrete_int(index)
index = util.get_concrete_int(index)
except AttributeError:
index = str(index)
if "storage_{}".format(index) not in interesting_storages:

@ -1,6 +1,6 @@
from z3 import *
from enum import Enum
from mythril.laser.ethereum import helper
from mythril.laser.ethereum import util
class VarType(Enum):
@ -20,7 +20,7 @@ class Variable:
def get_variable(i):
try:
return Variable(helper.get_concrete_int(i), VarType.CONCRETE)
return Variable(util.get_concrete_int(i), VarType.CONCRETE)
except AttributeError:
return Variable(simplify(i), VarType.SYMBOLIC)

@ -18,9 +18,11 @@ class Issue:
self.code = None
self.lineno = None
@property
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:
issue['filename'] = self.filename
@ -47,7 +49,7 @@ class Report:
pass
def sorted_issues(self):
issue_list = [issue.as_dict() for key, issue in self.issues.items()]
issue_list = [issue.as_dict for key, issue in self.issues.items()]
return sorted(issue_list, key=operator.itemgetter('address', 'title'))
def append_issue(self, issue):

@ -1,6 +1,6 @@
from z3 import Solver, simplify, sat
from z3 import Solver, simplify, sat, unknown
from mythril.exceptions import UnsatError
import logging
def get_model(constraints):
s = Solver()
@ -8,12 +8,11 @@ def get_model(constraints):
for constraint in constraints:
s.add(constraint)
if (s.check() == sat):
result = s.check()
if result == sat:
return s.model()
else:
elif result == unknown:
logging.info("Timeout encountered while solving expression using z3")
raise UnsatError

@ -43,7 +43,7 @@ def get_serializable_statespace(statespace):
def get_state_accounts(state):
state_accounts = []
for key in state.accounts:
account = state.accounts[key].as_dict()
account = state.accounts[key].as_dict
account.pop('code', None)
account['balance'] = str(account['balance'])
@ -57,7 +57,7 @@ def get_serializable_statespace(statespace):
})
return state_accounts
states = [{'machine': x.mstate.as_dict(), 'accounts': get_state_accounts(x)} for x in node.states]
states = [{'machine': x.mstate.as_dict, 'accounts': get_state_accounts(x)} for x in node.states]
for state in states:
state['machine']['stack'] = [str(s) for s in state['machine']['stack']]
@ -94,8 +94,8 @@ def get_serializable_statespace(statespace):
code = re.sub("([0-9a-f]{8})[0-9a-f]+", lambda m: m.group(1) + "(...)", code)
s_edge = {
'from': str(edge.as_dict()['from']),
'to': str(edge.as_dict()['to']),
'from': str(edge.as_dict['from']),
'to': str(edge.as_dict['to']),
'arrows': 'to',
'label': label,
'smooth': { 'type': "cubicBezier" }

@ -1,32 +1,22 @@
from mythril.ether import asm,util
import os
import json
from mythril.support.signatures import SignatureDb
import logging
class Disassembly:
class Disassembly(object):
def __init__(self, code):
self.instruction_list = asm.disassemble(util.safe_decode(code))
self.xrefs = []
self.func_to_addr = {}
self.addr_to_func = {}
self.bytecode = code
signatures = SignatureDb(enable_online_lookup=True) # control if you want to have online sighash lookups
try:
mythril_dir = os.environ['MYTHRIL_DIR']
except KeyError:
mythril_dir = os.path.join(os.path.expanduser('~'), ".mythril")
# Load function signatures
signatures_file = os.path.join(mythril_dir, 'signatures.json')
if not os.path.exists(signatures_file):
logging.info("Missing function signature file. Resolving of function names disabled.")
signatures = {}
else:
with open(signatures_file) as f:
signatures = json.load(f)
signatures.open() # open from default locations
except FileNotFoundError:
logging.info("Missing function signature file. Resolving of function names from signature file disabled.")
# Parse jump table & resolve function names
@ -35,7 +25,15 @@ class Disassembly:
for i in jmptable_indices:
func_hash = self.instruction_list[i]['argument']
try:
func_name = signatures[func_hash]
# tries local cache, file and optional online lookup
# may return more than one function signature. since we cannot probe for the correct one we'll use the first
func_names = signatures.get(func_hash)
if len(func_names) > 1:
# ambigious result
func_name = "**ambiguous** %s" % func_names[0] # return first hit but note that result was ambiguous
else:
# only one item
func_name = func_names[0]
except KeyError:
func_name = "_function_" + func_hash
@ -48,8 +46,8 @@ class Disassembly:
except:
continue
signatures.write() # store resolved signatures (potentially resolved online)
def get_easm(self):
# todo: tintinweb - print funcsig resolved data from self.addr_to_func?
return asm.instruction_list_to_easm(self.instruction_list)

@ -1,157 +0,0 @@
import os
import hashlib
import persistent.list
import transaction
from BTrees.OOBTree import BTree
import ZODB
from ZODB import FileStorage
from multiprocessing import Pool
import logging
from mythril.ether.ethcontract import ETHContract, InstanceList
from mythril import ether
import time
BLOCKS_PER_THREAD = 256
NUM_THREADS = 8
def get_persistent_storage(db_dir=None):
if not db_dir:
db_dir = os.path.join(os.path.expanduser('~'), ".mythril")
if not os.path.exists(db_dir):
os.makedirs(db_dir)
db_path = os.path.join(db_dir, "contractstorage.fs")
storage = FileStorage.FileStorage(db_path)
db = ZODB.DB(storage)
connection = db.open()
storage_root = connection.root()
try:
contract_storage = storage_root['contractStorage']
except KeyError:
contract_storage = ContractStorage()
storage_root['contractStorage'] = contract_storage
return contract_storage, db
class SyncBlocks(object):
'''
Processes the block chunk
'''
def __init__(self, eth):
self.eth = eth
def __call__(self, startblock):
'''
Processesing method
'''
logging.info("SYNC_BLOCKS %d to %d" % (startblock, startblock + BLOCKS_PER_THREAD))
contracts = {}
for blockNum in range(startblock, startblock + BLOCKS_PER_THREAD):
block = self.eth.eth_getBlockByNumber(blockNum)
for tx in block['transactions']:
if not tx['to']:
receipt = self.eth.eth_getTransactionReceipt(tx['hash'])
if receipt is not None:
contract_address = receipt['contractAddress']
contract_code = self.eth.eth_getCode(contract_address)
contract_balance = self.eth.eth_getBalance(contract_address)
if not contract_balance:
continue
ethcontract = ETHContract(contract_code, tx['input'])
m = hashlib.md5()
m.update(contract_code.encode('UTF-8'))
contract_hash = m.digest()
contracts[contract_hash] = {'ethcontract': ethcontract, 'address': contract_address, 'balance': contract_balance}
blockNum -= 1
return contracts
class ContractStorage(persistent.Persistent):
def __init__(self):
self.contracts = BTree()
self.instance_lists = BTree()
self.last_block = 0
self.eth = None
def get_contract_by_hash(self, contract_hash):
return self.contracts[contract_hash]
def initialize(self, eth):
self.eth = eth
if self.last_block:
blockNum = self.last_block
print("Resuming synchronization from block " + str(blockNum))
else:
blockNum = eth.eth_blockNumber()
print("Starting synchronization from latest block: " + str(blockNum))
processed = 0
while (blockNum > 0):
numbers = []
for i in range(1, NUM_THREADS + 1):
numbers.append(max(0, blockNum - (i * BLOCKS_PER_THREAD)))
pool = Pool(NUM_THREADS, initargs=(self.eth))
results = pool.map(SyncBlocks(self.eth), numbers)
pool.close()
pool.join()
for result in results:
for (contract_hash, data) in result.items():
try:
self.contracts[contract_hash]
except KeyError:
self.contracts[contract_hash] = data['ethcontract']
m = InstanceList()
self.instance_lists[contract_hash] = m
self.instance_lists[contract_hash].add(data['address'], data['balance'])
blockNum -= NUM_THREADS * BLOCKS_PER_THREAD
processed += NUM_THREADS * BLOCKS_PER_THREAD
self.last_block = blockNum
transaction.commit()
cost_time = time.time() - ether.start_time
print("%d blocks processed (in %d seconds), %d unique contracts in database, next block: %d" % (processed, cost_time, len(self.contracts), max(0, blockNum)))
# If we've finished initializing the database, start over from the end of the chain if we want to initialize again
self.last_block = 0
print("Finished synchronization")
def search(self, expression, callback_func):
all_keys = list(self.contracts)
for k in all_keys:
if self.contracts[k].matches_expression(expression):
m = self.instance_lists[k]
callback_func(k.hex(), self.contracts[k], m.addresses, m.balances)

@ -1,4 +1,4 @@
import mythril.laser.ethereum.helper as helper
import mythril.laser.ethereum.util as helper
from mythril.ether.ethcontract import ETHContract
from mythril.ether.util import *
from mythril.exceptions import NoContractFoundError

@ -49,8 +49,9 @@ def main():
outputs.add_argument('--verbose-report', action='store_true', help='Include debugging information in report')
database = parser.add_argument_group('local contracts database')
database.add_argument('--init-db', action='store_true', help='initialize the contract database')
database.add_argument('-s', '--search', help='search the contract database', metavar='EXPRESSION')
database.add_argument('--leveldb-dir', help='specify leveldb directory for search or direct access operations', metavar='LEVELDB_PATH')
database.add_argument('--search-all', action='store_true', help='search all contracts instead of active (non-zero balance) only')
utilities = parser.add_argument_group('utilities')
utilities.add_argument('--hash', help='calculate function signature hash', metavar='SIGNATURE')
@ -67,13 +68,13 @@ def main():
options.add_argument('--phrack', action='store_true', help='Phrack-style call graph')
options.add_argument('--enable-physics', action='store_true', help='enable graph physics simulation')
options.add_argument('-v', type=int, help='log level (0-2)', metavar='LOG_LEVEL')
options.add_argument('--leveldb', help='enable direct leveldb access operations', metavar='LEVELDB_PATH')
rpc = parser.add_argument_group('RPC options')
rpc.add_argument('-i', action='store_true', help='Preset: Infura Node service (Mainnet)')
rpc.add_argument('--rpc', help='custom RPC settings', metavar='HOST:PORT / ganache / infura-[network_name]')
rpc.add_argument('--rpctls', type=bool, default=False, help='RPC connection over TLS')
rpc.add_argument('--ipc', action='store_true', help='Connect via local IPC')
rpc.add_argument('--leveldb', action='store_true', help='Enable direct leveldb access operations')
# Get config values
@ -87,7 +88,7 @@ def main():
# Parse cmdline args
if not (args.search or args.init_db or args.hash or args.disassemble or args.graph or args.fire_lasers
if not (args.search or args.hash or args.disassemble or args.graph or args.fire_lasers
or args.storage or args.truffle or args.statespace_json):
parser.print_help()
sys.exit()
@ -106,27 +107,31 @@ def main():
try:
# the mythril object should be our main interface
#init_db = None, infura = None, rpc = None, rpctls = None, ipc = None,
#infura = None, rpc = None, rpctls = None, ipc = None,
#solc_args = None, dynld = None, max_recursion_depth = 12):
mythril = Mythril(solv=args.solv, dynld=args.dynld,
solc_args=args.solc_args)
if args.leveldb:
# Open LevelDB if specified
mythril.set_db_leveldb(args.leveldb)
elif (args.address or args.init_db) and not args.leveldb:
if args.address and not args.leveldb:
# Establish RPC/IPC connection if necessary
if args.i:
mythril.set_db_rpc_infura()
mythril.set_api_rpc_infura()
elif args.rpc:
mythril.set_db_rpc(rpc=args.rpc, rpctls=args.rpctls)
mythril.set_api_rpc(rpc=args.rpc, rpctls=args.rpctls)
elif args.ipc:
mythril.set_db_ipc()
mythril.set_api_ipc()
else:
mythril.set_db_rpc_localhost()
mythril.set_api_rpc_localhost()
elif args.leveldb or args.search:
# Open LevelDB if necessary
mythril.set_api_leveldb(mythril.leveldb_dir if not args.leveldb_dir else args.leveldb_dir)
if args.search:
# Database search ops
mythril.search_db(args.search, args.search_all)
sys.exit()
if args.truffle:
try:
@ -137,15 +142,6 @@ def main():
"Build directory not found. Make sure that you start the analysis from the project root, and that 'truffle compile' has executed successfully.")
sys.exit()
elif args.search:
# Database search ops
mythril.search_db(args.search)
sys.exit()
elif args.init_db:
mythril.init_db()
sys.exit()
# Load / compile input contracts
address = None

@ -0,0 +1,145 @@
import logging
from z3 import BitVec, simplify
import mythril.laser.ethereum.util as util
from mythril.laser.ethereum.state import Account
from mythril.laser.ethereum.svm import CalldataType
import re
"""
This module contains the business logic used by Instruction in instructions.py
to get the necessary elements from the stack and determine the parameters for the new global state.
"""
def get_call_parameters(global_state, dynamic_loader, with_value=False):
"""
Gets call parameters from global state
Pops the values from the stack and determines output parameters
:param global_state: state to look in
:param dynamic_loader: dynamic loader to use
:param with_value: whether to pop the value argument from the stack
:return: callee_account, call_data, value, call_data_type, gas
"""
state = global_state.mstate
instr = global_state.get_current_instruction()
if with_value:
gas, to, value, meminstart, meminsz, memory_out_offset, memory_out_size = \
state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop()
else:
gas, to, meminstart, meminsz, memory_out_offset, memory_out_size = \
state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop(), state.stack.pop()
value = None
callee_address = get_callee_address(global_state, dynamic_loader, to)
callee_account = None
call_data, call_data_type = get_call_data(global_state, meminstart, meminsz, False)
if int(callee_address, 16) >= 5 or int(callee_address, 16) == 0:
call_data, call_data_type = get_call_data(global_state, meminstart, meminsz)
callee_account = get_callee_account(global_state, callee_address, dynamic_loader)
return callee_address, callee_account, call_data, value, call_data_type, gas, memory_out_offset, memory_out_size
def get_callee_address(global_state, dynamic_loader, to):
"""
Gets the address of the callee
:param global_state: state to look in
:param dynamic_loader: dynamic loader to use
:return: Address of the callee
"""
environment = global_state.environment
try:
callee_address = hex(util.get_concrete_int(to))
except AttributeError:
logging.info("Symbolic call encountered")
match = re.search(r'storage_(\d+)', str(simplify(to)))
logging.debug("CALL to: " + str(simplify(to)))
if match is None or dynamic_loader is None:
raise ValueError()
index = int(match.group(1))
logging.info("Dynamic contract address at storage index {}".format(index))
# attempt to read the contract address from instance storage
# TODO: we need to do this correctly using multi transactional analysis
try:
callee_address = dynamic_loader.read_storage(environment.active_account.address, index)
except:
logging.debug("Error accessing contract storage.")
raise ValueError
# testrpc simply returns the address, geth response is more elaborate.
if not re.match(r"^0x[0-9a-f]{40}$", callee_address):
callee_address = "0x" + callee_address[26:]
return callee_address
def get_callee_account(global_state, callee_address, dynamic_loader):
"""
Gets the callees account from the global_state
:param global_state: state to look in
:param callee_address: address of the callee
:param dynamic_loader: dynamic loader to use
:return: Account belonging to callee
"""
environment = global_state.environment
accounts = global_state.accounts
try:
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.")
if dynamic_loader is None:
raise ValueError()
logging.info("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.")
raise ValueError()
if code is None:
logging.info("No code returned, not a contract account?")
raise ValueError()
logging.info("Dependency loaded: " + callee_address)
callee_account = Account(callee_address, code, callee_address)
accounts[callee_address] = callee_account
return callee_account
def get_call_data(global_state, memory_start, memory_size, pad=True):
"""
Gets call_data from the global_state
:param global_state: state to look in
:param memory_start: Start index
:param memory_size: Size
:return: Tuple containing: call_data array from memory or empty array if symbolic, type found
"""
state = global_state.mstate
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_type = CalldataType.CONCRETE
logging.debug("Calldata: " + str(call_data))
except AttributeError:
logging.info("Unsupported symbolic calldata offset")
call_data_type = CalldataType.SYMBOLIC
call_data = []
return call_data, call_data_type

@ -0,0 +1,65 @@
from flags import Flags
from enum import Enum
gbl_next_uid = 0 # node counter
class JumpType(Enum):
CONDITIONAL = 1
UNCONDITIONAL = 2
CALL = 3
RETURN = 4
class NodeFlags(Flags):
FUNC_ENTRY = 1
CALL_RETURN = 2
class Node:
def __init__(self, contract_name, start_addr=0, constraints=None):
constraints = constraints if constraints else []
self.contract_name = contract_name
self.start_addr = start_addr
self.states = []
self.constraints = constraints
self.function_name = "unknown"
self.flags = NodeFlags()
# Self-assign a unique ID
global gbl_next_uid
self.uid = gbl_next_uid
gbl_next_uid += 1
def get_cfg_dict(self):
code = ""
for state in self.states:
instruction = state.get_current_instruction()
code += str(instruction['address']) + " " + instruction['opcode']
if instruction['opcode'].startswith("PUSH"):
code += " " + instruction['argument']
code += "\\n"
return dict(contract_name=self.contract_name, start_addr=self.start_addr, function_name=self.function_name,
code=code)
class Edge:
def __init__(self, node_from, node_to, edge_type=JumpType.UNCONDITIONAL, condition=None):
self.node_from = node_from
self.node_to = node_to
self.type = edge_type
self.condition = condition
def __str__(self):
return str(self.as_dict)
@property
def as_dict(self):
return {"from": self.node_from, 'to': self.node_to}

@ -1,74 +0,0 @@
gascost = {
'PUSH': 3,
'DUP': 3,
'SWAP': 3,
'STOP': 0,
'ADD': 3,
'MUL': 5,
'SUB': 3,
'DIV': 5,
'SDIV': 5,
'MOD': 5,
'SMOD': 5,
'ADDMOD': 8,
'MULMOD': 8,
'EXP': 10,
'SIGNEXTEND': 5,
'LT': 3,
'GT': 3,
'SLT': 3,
'SGT': 3,
'EQ': 3,
'ISZERO': 3,
'AND': 3,
'OR': 3,
'XOR': 3,
'NOT': 3,
'BYTE': 3,
'SHA3': 30,
'ADDRESS': 2,
'BALANCE': 400,
'ORIGIN': 2,
'CALLER': 2,
'CALLVALUE': 2,
'CALLDATALOAD': 3,
'CALLDATASIZE': 2,
'CALLDATACOPY': 3,
'CODESIZE': 2,
'CODECOPY': 3,
'GASPRICE': 2,
'EXTCODESIZE': 700,
'EXTCODECOPY': 700,
'BLOCKHASH': 20,
'COINBASE': 2,
'TIMESTAMP': 2,
'NUMBER': 2,
'DIFFICULTY': 2,
'GASLIMIT': 2,
'POP': 2,
'MLOAD': 3,
'MSTORE': 3,
'MSTORE8': 3,
'SLOAD': 50,
'SSTORE': 0,
'JUMP': 8,
'JUMPI': 10,
'PC': 2,
'MSIZE': 2,
'GAS': 2,
'JUMPDEST': 1,
'LOG0': 375,
'LOG1': 750,
'LOG2': 1125,
'LOG3': 1500,
'LOG4': 1875,
'CREATE': 32000,
'CALL': 40,
'CALLCODE': 40,
'RETURN': 0,
'DELEGATECALL': 40,
'CALLBLACKBOX': 40,
'STATICCALL': 40,
'REVERT': 0,
'SUICIDE': 5000,
}

@ -0,0 +1,994 @@
import binascii
import logging
from copy import copy, deepcopy
import ethereum.opcodes as opcodes
from ethereum import utils
from z3 import BitVec, Extract, UDiv, simplify, Concat, ULT, UGT, BitVecNumRef, Not, \
is_false
from z3 import BitVecVal, If, BoolRef
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.state import GlobalState, MachineState, Environment, CalldataType
import mythril.laser.ethereum.natives as natives
TT256 = 2 ** 256
TT256M1 = 2 ** 256 - 1
class StackUnderflowException(Exception):
pass
class StopSignal(Exception):
pass
def instruction(func):
""" Wrapper that handles copy and original return """
def wrapper(self, global_state):
global_state_copy = copy(global_state)
new_global_states = func(self, global_state_copy)
for state in new_global_states:
state.mstate.pc += 1
return new_global_states
return wrapper
class Instruction:
"""
Instruction class is used to mutate a state according to the current instruction
"""
def __init__(self, op_code, dynamic_loader):
self.dynamic_loader = dynamic_loader
self.op_code = op_code
def evaluate(self, global_state):
""" Performs the mutation for this instruction """
# Generalize some ops
logging.debug("Evaluating {}".format(self.op_code))
op = self.op_code.lower()
if self.op_code.startswith("PUSH"):
op = "push"
elif self.op_code.startswith("DUP"):
op = "dup"
elif self.op_code.startswith("SWAP"):
op = "swap"
elif self.op_code.startswith("LOG"):
op = "log"
instruction_mutator = getattr(self, op + '_', None)
if instruction_mutator is None:
raise NotImplementedError
return instruction_mutator(global_state)
@instruction
def jumpdest_(self, global_state):
return [global_state]
@instruction
def push_(self, global_state):
value = BitVecVal(int(global_state.get_current_instruction()['argument'][2:], 16), 256)
global_state.mstate.stack.append(value)
return [global_state]
@instruction
def dup_(self, global_state):
value = int(global_state.get_current_instruction()['opcode'][3:], 10)
global_state.mstate.stack.append(global_state.mstate.stack[-value])
return [global_state]
@instruction
def swap_(self, global_state):
depth = int(self.op_code[4:])
try:
stack = global_state.mstate.stack
stack[-depth - 1], stack[-1] = stack[-1], stack[-depth - 1]
except IndexError:
raise StackUnderflowException()
return [global_state]
@instruction
def pop_(self, global_state):
try:
global_state.mstate.stack.pop()
except IndexError:
raise StackUnderflowException()
return [global_state]
@instruction
def and_(self, global_state):
try:
stack = global_state.mstate.stack
op1, op2 = stack.pop(), stack.pop()
if type(op1) == BoolRef:
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)
except IndexError:
raise StackUnderflowException()
return [global_state]
@instruction
def or_(self, global_state):
stack = global_state.mstate.stack
try:
op1, op2 = stack.pop(), stack.pop()
if type(op1) == BoolRef:
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)
except IndexError: # Stack underflow
raise StackUnderflowException()
return [global_state]
@instruction
def xor_(self, global_state):
mstate = global_state.mstate
mstate.stack.append(mstate.stack.pop() ^ mstate.stack.pop())
return [global_state]
@instruction
def not_(self, global_state: GlobalState):
mstate = global_state.mstate
mstate.stack.append(TT256M1 - mstate.stack.pop())
return [global_state]
@instruction
def byte_(self, global_state):
mstate = global_state.mstate
op0, op1 = mstate.stack.pop(), mstate.stack.pop()
try:
index = util.get_concrete_int(op0)
offset = (31 - index) * 8
result = Concat(BitVecVal(0, 248), Extract(offset + 7, offset, op1))
except AttributeError:
logging.debug("BYTE: Unsupported symbolic byte offset")
result = BitVec(str(simplify(op1)) + "[" + str(simplify(op0)) + "]", 256)
mstate.stack.append(simplify(result))
return [global_state]
# Arithmetic
@instruction
def add_(self, global_state):
global_state.mstate.stack.append(
(helper.pop_bitvec(global_state.mstate) + helper.pop_bitvec(global_state.mstate)))
return [global_state]
@instruction
def sub_(self, global_state):
global_state.mstate.stack.append(
(helper.pop_bitvec(global_state.mstate) - helper.pop_bitvec(global_state.mstate)))
return [global_state]
@instruction
def mul_(self, global_state):
global_state.mstate.stack.append(
(helper.pop_bitvec(global_state.mstate) * helper.pop_bitvec(global_state.mstate)))
return [global_state]
@instruction
def div_(self, global_state):
global_state.mstate.stack.append(
UDiv(util.pop_bitvec(global_state.mstate), util.pop_bitvec(global_state.mstate)))
return [global_state]
@instruction
def sdiv_(self, global_state):
s0, s1 = util.pop_bitvec(global_state.mstate), util.pop_bitvec(global_state.mstate)
global_state.mstate.stack.append(s0 / s1)
return [global_state]
@instruction
def smod_(self, global_state):
s0, s1 = util.pop_bitvec(global_state.mstate), util.pop_bitvec(global_state.mstate)
global_state.mstate.stack.append(0 if s1 == 0 else s0 % s1)
return [global_state]
@instruction
def addmod_(self, global_state):
s0, s1, s2 = util.pop_bitvec(global_state.mstate), util.pop_bitvec(global_state.mstate), util.pop_bitvec(
global_state.mstate)
global_state.mstate.stack.append((s0 + s1) % s2)
return [global_state]
@instruction
def mulmod_(self, global_state):
s0, s1, s2 = util.pop_bitvec(global_state.mstate), util.pop_bitvec(global_state.mstate), util.pop_bitvec(
global_state.mstate)
global_state.mstate.stack.append((s0 * s1) % s2 if s2 else 0)
@instruction
def exp_(self, global_state):
state = global_state.mstate
# we only implement 2 ** x
base, exponent = util.pop_bitvec(state), util.pop_bitvec(state)
if (type(base) != BitVecNumRef) or (type(exponent) != BitVecNumRef):
state.stack.append(BitVec("(" + str(simplify(base)) + ")^(" + str(simplify(exponent)) + ")", 256))
elif base.as_long() == 2:
if exponent.as_long() == 0:
state.stack.append(BitVecVal(1, 256))
else:
state.stack.append(base << (exponent - 1))
else:
state.stack.append(base)
return [global_state]
@instruction
def signextend_(self, global_state):
state = global_state.mstate
s0, s1 = state.stack.pop(), state.stack.pop()
try:
s0 = util.get_concrete_int(s0)
s1 = util.get_concrete_int(s1)
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))
else:
state.stack.append(s1)
# TODO: broad exception handler
except:
return []
return [global_state]
# Comparisons
@instruction
def lt_(self, global_state):
state = global_state.mstate
exp = ULT(util.pop_bitvec(state), util.pop_bitvec(state))
state.stack.append(exp)
return [global_state]
@instruction
def gt_(self, global_state):
state = global_state.mstate
exp = UGT(util.pop_bitvec(state), util.pop_bitvec(state))
state.stack.append(exp)
return [global_state]
@instruction
def slt_(self, global_state):
state = global_state.mstate
exp = util.pop_bitvec(state) < util.pop_bitvec(state)
state.stack.append(exp)
return [global_state]
@instruction
def sgt_(self, global_state):
state = global_state.mstate
exp = util.pop_bitvec(state) > util.pop_bitvec(state)
state.stack.append(exp)
return [global_state]
@instruction
def eq_(self, global_state):
state = global_state.mstate
op1 = state.stack.pop()
op2 = state.stack.pop()
if type(op1) == BoolRef:
op1 = If(op1, BitVecVal(1, 256), BitVecVal(0, 256))
if type(op2) == BoolRef:
op2 = If(op2, BitVecVal(1, 256), BitVecVal(0, 256))
exp = op1 == op2
state.stack.append(exp)
return [global_state]
@instruction
def iszero_(self, global_state):
state = global_state.mstate
val = state.stack.pop()
exp = val == False if type(val) == BoolRef else val == 0
state.stack.append(exp)
return [global_state]
# Call data
@instruction
def callvalue_(self, global_state):
state = global_state.mstate
environment = global_state.environment
state.stack.append(environment.callvalue)
return [global_state]
@instruction
def calldataload_(self, global_state):
state = global_state.mstate
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(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(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(BitVec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
else:
# symbolic variable
state.stack.append(BitVec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(simplify(op0)) + "]", 256))
return [global_state]
@instruction
def calldatasize_(self, global_state):
state = global_state.mstate
environment = global_state.environment
if environment.calldata_type == CalldataType.SYMBOLIC:
state.stack.append(BitVec("calldatasize_" + environment.active_account.contract_name, 256))
else:
state.stack.append(BitVecVal(len(environment.calldata), 256))
return [global_state]
@instruction
def calldatacopy_(self, global_state):
state = global_state.mstate
environment = global_state.environment
op0, op1, op2 = state.stack.pop(), state.stack.pop(), state.stack.pop()
try:
mstart = util.get_concrete_int(op0)
# FIXME: broad exception catch
except:
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:
logging.debug("Unsupported symbolic calldata offset in CALLDATACOPY")
dstart = simplify(op1)
dstart_sym = True
size_sym = False
try:
size = util.get_concrete_int(op2)
# FIXME: broad exception catch
except:
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.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state]
if size > 0:
try:
state.mem_extend(mstart, size)
# FIXME: broad exception catch
except:
logging.debug("Memory allocation error: mstart = " + str(mstart) + ", size = " + str(size))
state.mem_extend(mstart, 1)
state.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state]
try:
i_data = environment.calldata[dstart]
for i in range(mstart, mstart + size):
state.memory[i] = environment.calldata[i_data]
i_data += 1
except:
logging.debug("Exception copying calldata to memory")
state.memory[mstart] = BitVec(
"calldata_" + str(environment.active_account.contract_name) + "[" + str(dstart) + ": + " + str(
size) + "]", 256)
return [global_state]
# Environment
@instruction
def address_(self, global_state):
state = global_state.mstate
environment = global_state.environment
state.stack.append(environment.address)
return [global_state]
@instruction
def balance_(self, global_state):
state = global_state.mstate
address = state.stack.pop()
state.stack.append(BitVec("balance_at_" + str(address), 256))
return [global_state]
@instruction
def origin_(self, global_state):
state = global_state.mstate
environment = global_state.environment
state.stack.append(environment.origin)
return [global_state]
@instruction
def caller_(self, global_state):
state = global_state.mstate
environment = global_state.environment
state.stack.append(environment.sender)
return [global_state]
@instruction
def codesize_(self, global_state):
state = global_state.mstate
environment = global_state.environment
disassembly = environment.code
state.stack.append(len(disassembly.bytecode) // 2)
return [global_state]
@instruction
def sha3_(self, global_state):
state = global_state.mstate
environment = global_state.environment
op0, op1 = state.stack.pop(), state.stack.pop()
try:
index, length = util.get_concrete_int(op0), util.get_concrete_int(op1)
# FIXME: broad exception catch
except:
# Can't access symbolic memory offsets
state.stack.append(BitVec("KECCAC_mem[" + str(simplify(op0)) + "]", 256))
return [global_state]
try:
data = b''
for i in range(index, index + length):
data += util.get_concrete_int(state.memory[i]).to_bytes(1, byteorder='big')
i += 1
# FIXME: broad exception catch
except:
svar = str(state.memory[index])
svar = svar.replace(" ", "_")
state.stack.append(BitVec("keccac_" + svar, 256))
return [global_state]
keccac = utils.sha3(utils.bytearray_to_bytestr(data))
logging.debug("Computed SHA3 Hash: " + str(binascii.hexlify(keccac)))
state.stack.append(BitVecVal(util.concrete_int_from_bytes(keccac, 0), 256))
return [global_state]
@instruction
def gasprice_(self, global_state):
global_state.mstate.stack.append(BitVec("gasprice", 256))
return [global_state]
@instruction
def codecopy(self, global_state):
# FIXME: not implemented
state = global_state.mstate
start, s1, size = state.stack.pop(), state.stack.pop(), state.stack.pop()
return [global_state]
@instruction
def extcodesize_(self, global_state):
state = global_state.mstate
addr = state.stack.pop()
environment = global_state.environment
try:
addr = hex(helper.get_concrete_int(addr))
except AttributeError:
logging.info("unsupported symbolic address for EXTCODESIZE")
state.stack.append(BitVec("extcodesize_" + str(addr), 256))
return [global_state]
try:
code = self.dynamic_loader.dynld(environment.active_account.address, addr)
except Exception as e:
logging.info("error accessing contract storage due to: " + str(e))
state.stack.append(BitVec("extcodesize_" + str(addr), 256))
return [global_state]
if code is None:
state.stack.append(0)
else:
state.stack.append(len(code.bytecode) // 2)
return [global_state]
@instruction
def extcodecopy_(self, global_state):
# FIXME: not implemented
state = global_state.mstate
addr = state.stack.pop()
start, s2, size = state.stack.pop(), state.stack.pop(), state.stack.pop()
return [global_state]
@instruction
def returndatasize_(self, global_state):
global_state.mstate.stack.append(BitVec("returndatasize", 256))
return [global_state]
@instruction
def blockhash_(self, global_state):
state = global_state.mstate
blocknumber = state.stack.pop()
state.stack.append(BitVec("blockhash_block_" + str(blocknumber), 256))
return [global_state]
@instruction
def coinbase_(self, global_state):
global_state.mstate.stack.append(BitVec("coinbase", 256))
return [global_state]
@instruction
def timestamp_(self, global_state):
global_state.mstate.stack.append(BitVec("timestamp", 256))
return [global_state]
@instruction
def number_(self, global_state):
global_state.mstate.stack.append(BitVec("block_number", 256))
return [global_state]
@instruction
def difficulty_(self, global_state):
global_state.mstate.stack.append(BitVec("block_difficulty", 256))
return [global_state]
@instruction
def gaslimit_(self, global_state):
global_state.mstate.stack.append(BitVec("block_gaslimit", 256))
return [global_state]
# Memory operations
@instruction
def mload_(self, global_state):
state = global_state.mstate
op0 = state.stack.pop()
logging.debug("MLOAD[" + str(op0) + "]")
try:
offset = util.get_concrete_int(op0)
except AttributeError:
logging.debug("Can't MLOAD from symbolic index")
data = BitVec("mem[" + str(simplify(op0)) + "]", 256)
state.stack.append(data)
return [global_state]
try:
data = util.concrete_int_from_bytes(state.memory, offset)
except IndexError: # Memory slot not allocated
data = BitVec("mem[" + str(offset) + "]", 256)
except TypeError: # Symbolic memory
data = state.memory[offset]
logging.debug("Load from memory[" + str(offset) + "]: " + str(data))
state.stack.append(data)
return [global_state]
@instruction
def mstore_(self, global_state):
state = global_state.mstate
op0, value = state.stack.pop(), state.stack.pop()
try:
mstart = util.get_concrete_int(op0)
except AttributeError:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
try:
state.mem_extend(mstart, 32)
except Exception:
logging.debug("Error extending memory, mstart = " + str(mstart) + ", size = 32")
logging.debug("MSTORE to mem[" + str(mstart) + "]: " + str(value))
try:
# 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
except:
try:
state.memory[mstart] = value
except:
logging.debug("Invalid memory access")
return [global_state]
@instruction
def mstore8_(self, global_state):
state = global_state.mstate
op0, value = state.stack.pop(), state.stack.pop()
try:
offset = util.get_concrete_int(op0)
except AttributeError:
logging.debug("MSTORE to symbolic index. Not supported")
return [global_state]
state.mem_extend(offset, 1)
state.memory[offset] = value % 256
return [global_state]
@instruction
def sload_(self, global_state):
state = global_state.mstate
index = state.stack.pop()
logging.debug("Storage access at index " + str(index))
try:
index = util.get_concrete_int(index)
except AttributeError:
index = str(index)
try:
data = global_state.environment.active_account.storage[index]
except KeyError:
data = BitVec("storage_" + str(index), 256)
global_state.environment.active_account.storage[index] = data
state.stack.append(data)
return [global_state]
@instruction
def sstore_(self, global_state):
state = global_state.mstate
index, value = state.stack.pop(), state.stack.pop()
logging.debug("Write to storage[" + str(index) + "]")
try:
index = util.get_concrete_int(index)
except AttributeError:
index = str(index)
try:
# Create a fresh copy of the account object before modifying storage
for k in global_state.accounts:
if global_state.accounts[k] == global_state.environment.active_account:
global_state.accounts[k] = deepcopy(global_state.accounts[k])
global_state.environment.active_account = global_state.accounts[k]
break
global_state.environment.active_account.storage[index] = value
except KeyError:
logging.debug("Error writing to storage: Invalid index")
return [global_state]
@instruction
def jump_(self, global_state):
state = global_state.mstate
disassembly = global_state.environment.code
try:
jump_addr = util.get_concrete_int(state.stack.pop())
except AttributeError:
logging.debug("Invalid jump argument (symbolic address)")
return []
except IndexError: # Stack Underflow
return []
index = util.get_instruction_index(disassembly.instruction_list, jump_addr)
if index is None:
logging.debug("JUMP to invalid address")
return []
op_code = disassembly.instruction_list[index]['opcode']
if op_code != "JUMPDEST":
logging.debug("Skipping JUMP to invalid destination (not JUMPDEST): " + str(jump_addr))
return []
new_state = copy(global_state)
new_state.mstate.pc = index
new_state.mstate.depth += 1
return [new_state]
@instruction
def jumpi_(self, global_state):
state = global_state.mstate
disassembly = global_state.environment.code
states = []
op0, condition = state.stack.pop(), state.stack.pop()
try:
jump_addr = util.get_concrete_int(op0)
# FIXME: to broad exception handler
except:
logging.debug("Skipping JUMPI to invalid destination.")
return [global_state]
index = util.get_instruction_index(disassembly.instruction_list, jump_addr)
if not index:
logging.debug("Invalid jump destination: " + str(jump_addr))
return [global_state]
instr = disassembly.instruction_list[index]
# True case
condi = condition if type(condition) == BoolRef else condition != 0
if instr['opcode'] == "JUMPDEST":
if (type(condi) == bool and condi) or (type(condi) == BoolRef and not is_false(simplify(condi))):
new_state = copy(global_state)
new_state.mstate.pc = index
new_state.mstate.depth += 1
new_state.mstate.constraints.append(condi)
states.append(new_state)
else:
logging.debug("Pruned unreachable states.")
# False case
negated = Not(condition) if type(condition) == BoolRef else condition == 0
sat = not is_false(simplify(negated)) if type(condi) == BoolRef else not negated
if sat:
new_state = copy(global_state)
new_state.mstate.depth += 1
new_state.mstate.constraints.append(negated)
states.append(new_state)
else:
logging.debug("Pruned unreachable states.")
return states
@instruction
def pc_(self, global_state):
global_state.mstate.stack.append(global_state.mstate.pc - 1)
return [global_state]
@instruction
def msize_(self, global_state):
global_state.mstate.stack.append(BitVec("msize", 256))
return [global_state]
@instruction
def gas_(self, global_state):
global_state.mstate.stack.append(BitVec("gas", 256))
return [global_state]
@instruction
def log_(self, global_state):
# TODO: implement me
state = global_state.mstate
dpth = int(self.op_code[3:])
state.stack.pop(), state.stack.pop()
[state.stack.pop() for x in range(dpth)]
# Not supported
return [global_state]
@instruction
def create_(self, global_state):
# TODO: implement me
state = global_state.mstate
state.stack.pop(), state.stack.pop(), state.stack.pop()
# Not supported
state.stack.append(0)
return [global_state]
@instruction
def return_(self, global_state):
# TODO: memory
state = global_state.mstate
offset, length = state.stack.pop(), state.stack.pop()
try:
_ = 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")
#TODO: return 1
return_value = BitVec("retval_" + global_state.environment.active_function_name, 256)
state.stack.append(return_value)
if not global_state.call_stack:
return []
global_state.mstate.pc = global_state.call_stack.pop()
return [global_state]
@instruction
def suicide_(self, global_state):
return []
@instruction
def revert_(self, global_state):
return []
@instruction
def assert_fail_(self, global_state):
return []
@instruction
def invalid_(self, global_state):
return []
@instruction
def stop_(self, global_state):
state = global_state.mstate
state.stack.append(BitVecVal(0, 256))
if len(global_state.call_stack) is 0:
return []
global_state.mstate.pc = global_state.call_stack.pop()
return [global_state]
@instruction
def call_(self, global_state):
instr = global_state.get_current_instruction()
environment = global_state.environment
try:
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(
"Could not determine required parameters for call, putting fresh symbol on the stack. \n{}".format(e)
)
# TODO: decide what to do in this case
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
if 0 < int(callee_address, 16) < 5:
logging.info("Native contract called: " + callee_address)
if call_data == [] and call_data_type == CalldataType.SYMBOLIC:
logging.debug("CALL with symbolic data not supported")
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
data = natives.native_contracts(int(callee_address, 16), call_data)
try:
mem_out_start = helper.get_concrete_int(memory_out_offset)
mem_out_sz = memory_out_size.as_long()
except AttributeError:
logging.debug("CALL with symbolic start or offset not supported")
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
global_state.mstate.mem_extend(mem_out_start, mem_out_sz)
try:
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]
except:
global_state.mstate.memory[mem_out_start] = BitVec(data, 256)
# TODO: maybe use BitVec here constrained to 1
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
global_state.call_stack.append(instr['address'])
callee_environment = Environment(callee_account,
BitVecVal(int(environment.active_account.address, 16), 256),
call_data,
environment.gasprice,
value,
environment.origin,
calldata_type=call_data_type)
new_global_state = GlobalState(global_state.accounts, callee_environment, global_state.node, MachineState(gas))
new_global_state.mstate.depth = global_state.mstate.depth + 1
new_global_state.mstate.constraints = copy(global_state.mstate.constraints)
return [global_state]
@instruction
def callcode_(self, global_state):
instr = global_state.get_current_instruction()
environment = global_state.environment
try:
callee_address, callee_account, call_data, value, call_data_type, gas, _, _ = get_call_parameters(global_state, self.dynamic_loader, True)
except ValueError as e:
logging.info(
"Could not determine required parameters for call, putting fresh symbol on the stack. \n{}".format(e)
)
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
global_state.call_stack.append(instr['address'])
environment = deepcopy(environment)
environment.callvalue = value
environment.caller = environment.address
environment.calldata = call_data
new_global_state = GlobalState(global_state.accounts, environment, global_state.node, MachineState(gas))
new_global_state.mstate.depth = global_state.mstate.depth + 1
new_global_state.mstate.constraints = copy(global_state.mstate.constraints)
return [new_global_state]
@instruction
def delegatecall_(self, global_state):
instr = global_state.get_current_instruction()
environment = global_state.environment
try:
callee_address, callee_account, call_data, _, call_data_type, gas, _, _ = get_call_parameters(global_state, self.dynamic_loader)
except ValueError as e:
logging.info(
"Could not determine required parameters for call, putting fresh symbol on the stack. \n{}".format(e)
)
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]
global_state.call_stack.append(instr['address'])
environment = deepcopy(environment)
environment = deepcopy(environment)
environment.code = callee_account.code
environment.calldata = call_data
new_global_state = GlobalState(global_state.accounts, environment, global_state.node, MachineState(gas))
new_global_state.mstate.depth = global_state.mstate.depth + 1
new_global_state.mstate.constraints = copy(global_state.mstate.constraints)
return [new_global_state]
@instruction
def staticcall_(self, global_state):
# TODO: implement me
instr = global_state.get_current_instruction()
global_state.mstate.stack.append(BitVec("retval_" + str(instr['address']), 256))
return [global_state]

@ -1,11 +1,12 @@
# -*- coding: utf8 -*-
import copy
import hashlib
import coincurve
from py_ecc.secp256k1 import N as secp256k1n
from mythril.laser.ethereum.helper import ALL_BYTES, bytearray_to_int, concrete_int_to_bytes, sha3, zpad
from mythril.laser.ethereum.util import ALL_BYTES, 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
@ -40,7 +41,10 @@ def extract32(data, i):
def ecrecover(data):
try:
data = bytearray(data)
except TypeError:
return "ecrecover_"+str(data)
message = b''.join(map(lambda x: ALL_BYTES[x], data[0:32]))
v = extract32(data, 32)
r = extract32(data, 64)
@ -56,12 +60,18 @@ def ecrecover(data):
def sha256(data):
try:
data = bytes(data)
except TypeError:
return "sha256_"+str(data)
return hashlib.sha256(data).digest()
def ripemd160(data):
try:
data = bytes(data)
except TypeError:
return "ripemd160_"+str(data)
return 12*[0]+[i for i in hashlib.new('ripemd160', data).digest()]

@ -0,0 +1,151 @@
from z3 import BitVec, BitVecVal
from copy import copy, deepcopy
from enum import Enum
class CalldataType(Enum):
CONCRETE = 1
SYMBOLIC = 2
class Account:
"""
Account class representing ethereum accounts
"""
def __init__(self, address, code=None, contract_name="unknown", balance=None):
"""
Constructor for account
:param address: Address of the account
:param code: The contract code of the account
:param contract_name: The name associated with the account
:param balance: The balance for the account
"""
self.nonce = 0
self.code = code
self.balance = balance if balance else BitVec("balance", 256)
self.storage = {}
# Metadata
self.address = address
self.contract_name = contract_name
def __str__(self):
return str(self.as_dict)
def get_storage(self, index):
return self.storage[index] if index in self.storage.keys() else BitVec("storage_" + str(index), 256)
@property
def as_dict(self):
return {'nonce': self.nonce, 'code': self.code, 'balance': self.balance, 'storage': self.storage}
class Environment:
"""
The environment class represents the current execution environment for the symbolic executor
"""
def __init__(
self,
active_account,
sender,
calldata,
gasprice,
callvalue,
origin,
calldata_type=CalldataType.SYMBOLIC,
):
# Metadata
self.active_account = active_account
self.active_function_name = ""
self.address = BitVecVal(int(active_account.address, 16), 256)
self.code = active_account.code
self.sender = sender
self.calldata = calldata
self.calldata_type = calldata_type
self.gasprice = gasprice
self.origin = origin
self.callvalue = callvalue
def __str__(self):
return str(self.as_dict)
@property
def as_dict(self):
return dict(active_account=self.active_account, sender=self.sender, calldata=self.calldata,
gasprice=self.gasprice, callvalue=self.callvalue, origin=self.origin,
calldata_type=self.calldata_type)
class MachineState:
"""
MachineState represents current machine state also referenced to as \mu
"""
def __init__(self, gas):
""" Constructor for machineState """
self.pc = 0
self.stack = []
self.memory = []
self.memory_size = 0
self.gas = gas
self.constraints = []
self.depth = 0
def mem_extend(self, start, size):
"""
Extends the memory of this machine state
:param start: Start of memory extension
:param size: Size of memory extension
"""
if start < 4096 and size < 4096:
if size and start + size > len(self.memory):
n_append = start + size - len(self.memory)
while n_append > 0:
self.memory.append(0)
n_append -= 1
# FIXME: this does not seem right
self.memory_size = size
else:
# TODO: Specific exception
raise Exception
# TODO: Deduct gas for memory extension... not yet implemented
def __str__(self):
return str(self.as_dict)
@property
def as_dict(self):
return dict(pc=self.pc, stack=self.stack, memory=self.memory, memsize=self.memory_size, gas=self.gas)
class GlobalState:
"""
GlobalState represents the current globalstate
"""
def __init__(self, accounts, environment, node, machine_state=None, call_stack=None):
""" Constructor for GlobalState"""
self.node = node
self.accounts = accounts
self.environment = environment
self.mstate = machine_state if machine_state else MachineState(gas=10000000)
self.call_stack = call_stack if call_stack else []
self.op_code = ""
def __copy__(self):
accounts = copy(self.accounts)
environment = copy(self.environment)
mstate = deepcopy(self.mstate)
return GlobalState(accounts, environment, self.node, mstate)
#TODO: remove this, as two instructions are confusing
def get_current_instruction(self):
""" Gets the current instruction for this GlobalState"""
instructions = self.environment.code.instruction_list
return instructions[self.mstate.pc]

@ -0,0 +1,54 @@
"""
This module implements basic symbolic execution search strategies
"""
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
def __iter__(self):
return self
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()
if global_state.mstate.depth >= self.max_depth:
return self.__next__()
return global_state
except IndexError:
raise StopIteration()
class BreadthFirstSearchStrategy:
"""
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 __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()

File diff suppressed because it is too large Load Diff

@ -1,5 +1,5 @@
import logging, copy
import mythril.laser.ethereum.helper as helper
import mythril.laser.ethereum.util as helper
class TaintRecord:
@ -135,6 +135,7 @@ class TaintRunner:
# Apply Change
op = state.get_current_instruction()['opcode']
if op in TaintRunner.stack_taint_table.keys():
mutator = TaintRunner.stack_taint_table[op]
TaintRunner.mutate_stack(new_record, mutator)

@ -39,55 +39,27 @@ class EthLevelDB(object):
self.db = ETH_DB(path)
self.headBlockHeader = None
self.headState = None
self.all_contracts = None
self.active_contracts = None
self.instance_lists = None
def get_all_contracts(self):
def get_contracts(self, search_all):
'''
get all contracts
iterate through contracts with non-zero balance by default or all if search_all is set
'''
if not self.all_contracts:
self.all_contracts = []
self.active_contracts = []
self.instance_lists = []
state = self._get_head_state()
accounts = state.get_all_accounts()
for a in accounts:
if a.code is not None:
code = _encode_hex(a.code)
for account in self._get_head_state().get_all_accounts():
if account.code is not None and (search_all or account.balance != 0):
code = _encode_hex(account.code)
md5 = hashlib.md5()
md5.update(code.encode('UTF-8'))
contract_hash = md5.digest()
contract = ETHContract(code, name=contract_hash.hex())
self.all_contracts.append(contract)
if a.balance != 0:
md5 = InstanceList()
md5.add(_encode_hex(a.address), a.balance)
self.instance_lists.append(md5)
self.active_contracts.append(contract)
return self.all_contracts
def get_active_contracts(self):
'''
get all contracts with non-zero balance
'''
if not self.active_contracts:
self.get_all_contracts() # optimized
return self.active_contracts
yield contract, _encode_hex(account.address), account.balance
def search(self, expression, callback_func):
def search(self, expression, search_all, callback_func):
'''
searches through non-zero balance contracts
'''
contracts = self.get_active_contracts()
for i in range(0, len(contracts)):
if contracts[i].matches_expression(expression):
m = self.instance_lists[i]
callback_func(contracts[i].name, contracts[i], m.addresses, m.balances)
for contract, address, balance in self.get_contracts(search_all):
if contract.matches_expression(expression):
callback_func(contract.name, contract, [address], [balance])
def eth_getBlockHeaderByNumber(self, number):
'''

@ -121,10 +121,8 @@ class State():
def get_all_accounts(self):
'''
iterates through trie to get all items
iterates through trie to and yields non-blank leafs as accounts
'''
accounts = []
for addressHash, rlpdata in self.secureTrie.trie.to_dict().items():
for addressHash, rlpdata in self.secureTrie.trie.iter_branch():
if rlpdata != trie.BLANK_NODE:
accounts.append(rlp.decode(rlpdata, Account, db=self.db, address=addressHash))
return accounts
yield rlp.decode(rlpdata, Account, db=self.db, address=addressHash)

@ -11,11 +11,13 @@ import os
import re
from ethereum import utils
import codecs
from solc.exceptions import SolcError
import solc
from configparser import ConfigParser
import platform
from mythril.ether import util
from mythril.ether.contractstorage import get_persistent_storage
from mythril.ether.ethcontract import ETHContract
from mythril.ether.soliditycontract import SolidityContract
from mythril.rpc.client import EthJsonRpc
@ -46,17 +48,17 @@ class Mythril(object):
Example:
mythril = Mythril()
mythril.set_db_rpc_infura()
mythril.set_api_rpc_infura()
# (optional) other db adapters
mythril.set_db_rpc(args)
mythril.set_db_ipc()
mythril.set_db_rpc_localhost()
# (optional) other API adapters
mythril.set_api_rpc(args)
mythril.set_api_ipc()
mythril.set_api_rpc_localhost()
mythril.set_api_leveldb(path)
# (optional) other func
mythril.analyze_truffle_project(args)
mythril.search_db(args)
mythril.init_db()
# load contract
mythril.load_from_bytecode(bytecode)
@ -76,8 +78,6 @@ class Mythril(object):
mythril.get_state_variable_from_storage(args)
"""
def __init__(self, solv=None,
solc_args=None, dynld=False):
@ -86,12 +86,22 @@ class Mythril(object):
self.dynld = dynld
self.mythril_dir = self._init_mythril_dir()
self.signatures_file, self.sigs = self._init_signatures()
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:
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")
except json.JSONDecodeError as jde:
raise CriticalError("Invalid JSON in signatures file " + self.sigs.signatures_file + "\n" + str(jde))
self.solc_binary = self._init_solc_binary(solv)
self.leveldb_dir = self._init_config()
self.eth = None
self.ethDb = None
self.dbtype = None # track type of db (rpc,ipc,leveldb) used
self.eth = None # ethereum API client
self.ethDb = None # ethereum LevelDB client
self.contracts = [] # loaded contracts
@ -108,32 +118,40 @@ class Mythril(object):
os.mkdir(mythril_dir)
return mythril_dir
def _init_signatures(self):
# If no function signature file exists, create it. Function signatures from Solidity source code are added automatically.
signatures_file = os.path.join(self.mythril_dir, 'signatures.json')
sigs = {}
if not os.path.exists(signatures_file):
logging.info("No signature database found. Creating empty database: " + signatures_file + "\n" +
"Consider replacing it with the pre-initialized database at https://raw.githubusercontent.com/ConsenSys/mythril/master/signatures.json")
with open(signatures_file, 'a') as f:
json.dump({}, f)
with open(signatures_file) as f:
try:
sigs = json.load(f)
except json.JSONDecodeError as e:
raise CriticalError("Invalid JSON in signatures file " + signatures_file + "\n" + str(e))
return signatures_file, sigs
def _init_config(self):
def _update_signatures(self, jsonsigs):
# Save updated function signatures
with open(self.signatures_file, 'w') as f:
json.dump(jsonsigs, f)
# If no config file exists, create it. Default LevelDB path is specified based on OS
self.sigs = jsonsigs
config_path = os.path.join(self.mythril_dir, 'config.ini')
system = platform.system().lower()
fallback_dir = os.path.expanduser('~')
if system.startswith("darwin"):
fallback_dir = os.path.join(fallback_dir, "Library", "Ethereum")
elif system.startswith("windows"):
fallback_dir = os.path.join(fallback_dir, "AppData", "Roaming", "Ethereum")
else:
fallback_dir = os.path.join(fallback_dir, ".ethereum")
fallback_dir = os.path.join(fallback_dir, "geth", "chaindata")
if not os.path.exists(config_path):
logging.info("No config file found. Creating default: " + config_path)
config = ConfigParser(allow_no_value=True)
config.optionxform = str
config.add_section('defaults')
config.set('defaults', "#Default chaindata locations:")
config.set('defaults', "#– Mac: ~/Library/Ethereum/geth/chaindata")
config.set('defaults', "#– Linux: ~/.ethereum/geth/chaindata")
config.set('defaults', "#– Windows: %USERPROFILE%\\AppData\\Roaming\\Ethereum\\geth\\chaindata")
config.set('defaults', 'leveldb_dir', fallback_dir)
with codecs.open(config_path, 'w', 'utf-8') as fp:
config.write(fp)
config = ConfigParser(allow_no_value=True)
config.optionxform = str
config.read(config_path, 'utf-8')
leveldb_dir = config.get('defaults', 'leveldb_dir', fallback=fallback_dir)
return os.path.expanduser(leveldb_dir)
def analyze_truffle_project(self, *args, **kwargs):
return analyze_truffle_project(*args, **kwargs) # just passthru for now
@ -168,18 +186,16 @@ class Mythril(object):
solc_binary = 'solc'
return solc_binary
def set_db_leveldb(self, leveldb):
def set_api_leveldb(self, leveldb):
self.ethDb = EthLevelDB(leveldb)
self.eth = self.ethDb
self.dbtype = "leveldb"
return self.eth
def set_db_rpc_infura(self):
def set_api_rpc_infura(self):
self.eth = EthJsonRpc('mainnet.infura.io', 443, True)
logging.info("Using INFURA for RPC queries")
self.dbtype = "rpc"
def set_db_rpc(self, rpc=None, rpctls=False):
def set_api_rpc(self, rpc=None, rpctls=False):
if rpc == 'ganache':
rpcconfig = ('localhost', 7545, False)
else:
@ -195,26 +211,23 @@ class Mythril(object):
if rpcconfig:
self.eth = EthJsonRpc(rpcconfig[0], int(rpcconfig[1]), rpcconfig[2])
self.dbtype = "rpc"
logging.info("Using RPC settings: %s" % str(rpcconfig))
else:
raise CriticalError("Invalid RPC settings, check help for details.")
def set_db_ipc(self):
def set_api_ipc(self):
try:
self.eth = EthIpc()
self.dbtype = "ipc"
except Exception as e:
raise CriticalError(
"IPC initialization failed. Please verify that your local Ethereum node is running, or use the -i flag to connect to INFURA. \n" + str(
e))
def set_db_rpc_localhost(self):
def set_api_rpc_localhost(self):
self.eth = EthJsonRpc('localhost', 8545)
self.dbtype = "rpc"
logging.info("Using default RPC settings: http://localhost:8545")
def search_db(self, search):
def search_db(self, search, search_all):
def search_callback(code_hash, code, addresses, balances):
print("Matched contract with code hash " + code_hash)
@ -222,24 +235,11 @@ class Mythril(object):
print("Address: " + addresses[i] + ", balance: " + str(balances[i]))
try:
if self.dbtype=="leveldb":
self.ethDb.search(search, search_callback)
else:
contract_storage, _ = get_persistent_storage(self.mythril_dir)
contract_storage.search(search, search_callback)
self.ethDb.search(search, search_all, search_callback)
except SyntaxError:
raise CriticalError("Syntax error in search expression.")
def init_db(self):
contract_storage, _ = get_persistent_storage(self.mythril_dir)
try:
contract_storage.initialize(self.eth)
except FileNotFoundError as e:
raise CriticalError("Error syncing database over IPC: " + str(e))
except ConnectionError as e:
raise CriticalError("Could not connect to RPC server. Make sure that your node is running and that RPC parameters are set correctly.")
def load_from_bytecode(self, code):
address = util.get_indexed_address(0)
self.contracts.append(ETHContract(code, name="MAIN"))
@ -281,8 +281,10 @@ class Mythril(object):
file = os.path.expanduser(file)
try:
signatures.add_signatures_from_file(file, self.sigs)
self._update_signatures(self.sigs)
# import signatures from solidity source
with open(file, encoding="utf-8") as f:
self.sigs.import_from_solidity_source(f.read())
contract = SolidityContract(file, contract_name, solc_args=self.solc_args)
logging.info("Analyzing contract %s:%s" % (file, contract.name))
except FileNotFoundError:
@ -295,6 +297,9 @@ class Mythril(object):
self.contracts.append(contract)
contracts.append(contract)
# Save updated function signatures
self.sigs.write() # dump signatures to disk (previously opened file or default location)
return address, contracts
def dump_statespace(self, contract, address=None, max_depth=12):
@ -316,8 +321,9 @@ class Mythril(object):
verbose_report=False, max_depth=12):
all_issues = []
if self.dynld and self.eth is None:
self.set_api_rpc_infura()
for contract in (contracts or self.contracts):
sym = SymExecWrapper(contract, address,
dynloader=DynLoader(self.eth) if self.dynld else None,
max_depth=max_depth)

@ -1,36 +1,235 @@
#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
"""mythril.py: Function Signature Database
"""
import re
import os
import json
import time
import pathlib
import logging
from ethereum import utils
def add_signatures_from_file(file, sigs={}):
funcs = []
with open(file, encoding="utf-8") as f:
code = f.read()
funcs = re.findall(r'function[\s]+(\w+\([^\)]*\))', code, re.DOTALL)
# 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
import ethereum_input_decoder
from ethereum_input_decoder.decoder import FourByteDirectoryOnlineLookupError
except ImportError:
# fake it :)
ethereum_input_decoder = None
FourByteDirectoryOnlineLookupError = Exception
class SimpleFileLock(object):
# todo: replace with something more reliable. this is a quick shot on concurrency and might not work in all cases
def __init__(self, path):
self.path = path
self.lockfile = pathlib.Path("%s.lck" % path)
self.locked = False
def aquire(self, timeout=5):
if self.locked:
raise Exception("SimpleFileLock: lock already aquired")
t_end = time.time()+timeout
while time.time() < t_end:
# try to aquire lock
try:
self.lockfile.touch(mode=0o0000, exist_ok=False) # touch the lockfile
# lockfile does not exist. we have a lock now
self.locked = True
return
except FileExistsError as fee:
# check if lockfile date exceeds age and cleanup lock
if time.time() > self.lockfile.stat().st_mtime + 60 * 5:
self.release(force=True) # cleanup old lockfile > 5mins
time.sleep(0.5) # busywait is evil
continue
raise Exception("SimpleFileLock: timeout hit. failed to aquire lock: %s"% (time.time()-self.lockfile.stat().st_mtime))
def release(self, force=False):
if not force and not self.locked:
raise Exception("SimpleFileLock: aquire lock first")
try:
self.lockfile.unlink() # might throw if we force unlock and the file gets removed in the meantime. TOCTOU
except FileNotFoundError as fnfe:
logging.warning("SimpleFileLock: release(force=%s) on unavailable file. race? %r" % (force, fnfe))
self.locked = False
class SignatureDb(object):
def __init__(self, enable_online_lookup=True):
"""
Constr
:param enable_online_lookup: enable onlien signature hash lookup
"""
self.signatures = {} # signatures in-mem cache
self.signatures_file = None
self.signatures_file_lock = None
self.enable_online_lookup = enable_online_lookup # enable online funcsig resolving
self.online_lookup_miss = set() # temporarily track misses from onlinedb to avoid requesting the same non-existent sighash multiple times
self.online_directory_unavailable_until = 0 # flag the online directory as unavailable for some time
def open(self, path=None):
"""
Open a function signature db from json file
:param path: specific path to signatures.json; default mythril location if not specified
:return: self
"""
if not path:
# try default locations
try:
mythril_dir = os.environ['MYTHRIL_DIR']
except KeyError:
mythril_dir = os.path.join(os.path.expanduser('~'), ".mythril")
path = os.path.join(mythril_dir, 'signatures.json')
self.signatures_file = path # store early to allow error handling to access the place we tried to load the file
if not os.path.exists(path):
logging.debug("Signatures: file not found: %s" % path)
raise FileNotFoundError("Missing function signature file. Resolving of function names disabled.")
self.signatures_file_lock = self.signatures_file_lock or SimpleFileLock(self.signatures_file) # lock file to prevent concurrency issues
self.signatures_file_lock.aquire() # try to aquire it within the next 10s
with open(path, 'r') as f:
sigs = json.load(f)
self.signatures_file_lock.release() # release lock
# normalize it to {sighash:list(signatures,...)}
for sighash, funcsig in sigs.items():
if isinstance(funcsig, list):
self.signatures = sigs
break # already normalized
self.signatures.setdefault(sighash, [])
self.signatures[sighash].append(funcsig)
return self
def write(self, path=None, sync=True):
"""
Write signatures database as json to file
:param path: specify path otherwise update the file that was loaded with open()
:param sync: lock signature file, load contents and merge it into memcached sighash db, then save it
:return: self
"""
path = path or self.signatures_file
self.signatures_file_lock = self.signatures_file_lock or SimpleFileLock(path) # lock file to prevent concurrency issues
self.signatures_file_lock.aquire() # try to aquire it within the next 10s
if sync and os.path.exists(path):
# reload and save if file exists
with open(path, 'r') as f:
sigs = json.load(f)
sigs.update(self.signatures) # reload file and merge cached sigs into what we load from file
self.signatures = sigs
with open(path, 'w') as f:
json.dump(self.signatures, f)
self.signatures_file_lock.release()
return self
def get(self, sighash, timeout=2):
"""
get a function signature for a sighash
1) try local cache
2) try online lookup (if enabled; if not flagged as unavailable)
:param sighash: function signature hash as hexstr
:param timeout: online lookup timeout
:return: list of matching function signatures
"""
if not sighash.startswith("0x"):
sighash = "0x%s" % sighash # normalize sighash format
if self.enable_online_lookup and not self.signatures.get(sighash) and sighash not in self.online_lookup_miss and time.time() > self.online_directory_unavailable_until:
# online lookup enabled, and signature not in cache, sighash was not a miss earlier, and online directory not down
logging.debug("Signatures: performing online lookup for sighash %r" % sighash)
try:
funcsigs = SignatureDb.lookup_online(sighash, timeout=timeout) # might return multiple sigs
if funcsigs:
# only store if we get at least one result
self.signatures[sighash] = funcsigs
else:
# miss
self.online_lookup_miss.add(sighash)
except FourByteDirectoryOnlineLookupError as fbdole:
self.online_directory_unavailable_until = time.time() + 2 * 60 # wait at least 2 mins to try again
logging.warning("online function signature lookup not available. will not try to lookup hash for the next 2 minutes. exception: %r" % fbdole)
return self.signatures[sighash] # raise keyerror
def __getitem__(self, item):
"""
Provide dict interface Signatures()[sighash]
:param item: sighash
:return: list of matching signatures
"""
return self.get(sighash=item)
def import_from_solidity_source(self, code):
"""
Import Function Signatures from solidity source files
:param code: solidity source code
:return: self
"""
self.signatures.update(SignatureDb.parse_function_signatures_from_solidity_source(code))
return self
@staticmethod
def lookup_online(sighash, timeout=None, proxies=None):
"""
Lookup function signatures from 4byte.directory.
//tintinweb: the smart-contract-sanctuary project dumps contracts from etherscan.io and feeds them into
4bytes.directory.
https://github.com/tintinweb/smart-contract-sanctuary
:param sighash: function signature hash as hexstr
:param timeout: optional timeout for online lookup
:param proxies: optional proxy servers for online lookup
:return: a list of matching function signatures for this hash
"""
if not ethereum_input_decoder:
return None
return list(ethereum_input_decoder.decoder.FourByteDirectory.lookup_signatures(sighash,
timeout=timeout,
proxies=proxies))
@staticmethod
def parse_function_signatures_from_solidity_source(code):
"""
Parse solidity sourcecode for function signatures and return the signature hash and function signature
:param code: solidity source code
:return: dictionary {sighash: function_signature}
"""
sigs = {}
funcs = re.findall(r'function[\s]+(.*?\))', code, re.DOTALL)
for f in funcs:
f = re.sub(r'[\n]', '', f)
m = re.search(r'^([A-Za-z0-9_]+)', f)
if (m):
if m:
signature = m.group(1)
m = re.search(r'\((.*)\)', f)
_args = m.group(1).split(",")
types = []
for arg in _args:
_type = arg.lstrip().split(" ")[0]
if _type == "uint":
_type = "uint256"
@ -38,7 +237,8 @@ def add_signatures_from_file(file, sigs={}):
typelist = ",".join(types)
signature += "(" + typelist + ")"
signature = re.sub(r'\s', '', signature)
sigs["0x" + utils.sha3(signature)[:4].hex()] = signature
logging.debug("Signatures: parse soldiity found %d signatures" % len(sigs))
return sigs

@ -10,7 +10,7 @@ from mythril.analysis.symbolic import SymExecWrapper
from mythril.analysis.report import Report
from mythril.ether import util
from mythril.laser.ethereum import helper
from mythril.laser.ethereum.util import get_instruction_index
def analyze_truffle_project(args):
@ -41,7 +41,7 @@ def analyze_truffle_project(args):
ethcontract = ETHContract(bytecode, name=name)
address = util.get_indexed_address(0)
sym = SymExecWrapper(ethcontract, address, max_depth=10)
sym = SymExecWrapper(ethcontract, address, max_depth=args.max_depth)
issues = fire_lasers(sym)
if not len(issues):
@ -80,7 +80,7 @@ def analyze_truffle_project(args):
for issue in issues:
index = helper.get_instruction_index(disassembly.instruction_list, issue.address)
index = get_instruction_index(disassembly.instruction_list, issue.address)
if index:
try:
@ -97,7 +97,7 @@ def analyze_truffle_project(args):
if (args.outform == 'json'):
result = {'contract': name, 'result': {'success': True, 'error': None, 'issues': list(map(lambda x: x.as_dict(), issues))}}
result = {'contract': name, 'result': {'success': True, 'error': None, 'issues': list(map(lambda x: x.as_dict, issues))}}
print(json.dumps(result))
else:

@ -1,16 +1,17 @@
BTrees
configparser>=3.5.0
coverage
eth_abi>=1.0.0
eth-account>=0.1.0a2
ethereum>=2.3.0
ethereum==2.3.1
eth-hash>=0.1.0
eth-keyfile>=0.5.1
eth-keys>=0.2.0b3
eth-rlp>=0.1.0
eth-tester>=0.1.0b21
eth-utils>=1.0.1
jinja2
jinja2>=2.9
mock
persistent>=4.2.0
plyvel
py-flags
py-solc
@ -20,4 +21,3 @@ pytest_mock
requests
rlp<1.0.0
z3-solver>=4.5
ZODB>=5.3.0

@ -6,7 +6,7 @@ import os
# Package version (vX.Y.Z). It must match git tag being used for CircleCI
# deployment; otherwise the build will failed.
VERSION = "v0.18.5"
VERSION = "v0.18.7"
class VerifyVersionCommand(install):
@ -159,26 +159,24 @@ unfortunately completely destroys usability.
Blockchain exploration
----------------------
Mythril builds its own contract database to enable fast search
operations. This enables operations like those described in the
`legendary "Mitch Brenner" blog
post <https://medium.com/@rtaylor30/how-i-snatched-your-153-037-eth-after-a-bad-tinder-date-d1d84422a50b>`__
in [STRIKEOUT:seconds] minutes instead of days. Unfortunately, the
initial sync process is slow. You don't need to sync the whole
blockchain right away though: If you abort the syncing process with
``ctrl+c``, it will be auto-resumed the next time you run the
``--init-db`` command.
Mythril allows to search geth contract database directly as well as
perform other operations targetting local geth database instead of
exposed RPC/IPC API. This enables operations like those described
in the `legendary "Mitch Brenner" blog post
<https://medium.com/@rtaylor30/how-i-snatched-your-153-037-eth-after-a-bad-tinder-date-d1d84422a50b>`__
in [STRIKEOUT:seconds] minutes instead of days.
.. code:: bash
The default behavior is to search contracts with a non-zero balance.
You can disable this behavior with the ``--search-all`` flag.
$ myth --init-db
Starting synchronization from latest block: 4323706
Processing block 4323000, 3 individual contracts in database
(...)
You may also use geth database directly for fetching contracts instead of
using IPC/RPC APIs by specifying ``--leveldb`` flag. This is useful
because search will return hashed addresses which will not be accepted by
IPC/RPC APIs.
The default behavior is to only sync contracts with a non-zero balance.
You can disable this behavior with the ``--sync-all`` flag, but be aware
that this will result in a huge (as in: dozens of GB) database.
By default database operations will target default geth data directory on
your system. You may edit the generated configuration at ``~/.mythril/config.ini``
or you may supply ``--leveldb-dir <PATH>`` parameter in command line.
Searching from the command line
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@ -190,8 +188,9 @@ expressions, such as:
.. code:: bash
$ myth --search "func#changeMultisig(address)#"
$ myth --search "code#PUSH1 0x50,POP#"
$ myth --search "code#PUSH1 0x50,POP#" --search-all
$ myth --search "func#changeMultisig(address)# and code#PUSH1 0x50#"
$ myth -s "code#PUSH#" --leveldb-dir /Volumes/MyPassport/Ether/Rinkeby/geth/chaindata
Reading contract storage
~~~~~~~~~~~~~~~~~~~~~~~~
@ -306,11 +305,9 @@ setup(
packages=find_packages(exclude=['contrib', 'docs', 'tests']),
install_requires=[
'ethereum>=2.3.0',
'ZODB>=5.3.0',
'ethereum==2.3.1',
'z3-solver>=4.5',
'requests',
'BTrees',
'py-solc',
'plyvel',
'eth_abi>=1.0.0',
@ -322,10 +319,12 @@ setup(
'eth-rlp>=0.1.0',
'eth-tester>=0.1.0b21',
'coverage',
'jinja2',
'jinja2>=2.9',
'rlp<1.0.0',
'py-flags',
'mock'
'mock',
'configparser>=3.5.0',
'persistent>=4.2.0'
],
tests_require=[

@ -11,7 +11,7 @@ def test_concrete_call():
# arrange
address = "0x10"
state = GlobalState(None, None)
state = GlobalState(None, None, None)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
node = Node("example")
@ -42,7 +42,7 @@ def test_concrete_call_symbolic_to():
# arrange
address = "0x10"
state = GlobalState(None, None)
state = GlobalState(None, None, None)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
node = Node("example")
@ -71,7 +71,7 @@ def test_concrete_call_symbolic_to():
def test_concrete_call_not_calldata():
# arrange
state = GlobalState(None, None)
state = GlobalState(None, None, None)
state.mstate.memory = ["placeholder", "not_calldata"]
meminstart = Variable(1, VarType.CONCRETE)
@ -88,7 +88,7 @@ def test_symbolic_call_storage_to(mocker):
active_account = Account(address)
environment = Environment(active_account, None, None, None, None, None)
state = GlobalState(None, environment)
state = GlobalState(None, environment, None)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
@ -126,7 +126,7 @@ def test_symbolic_call_calldata_to(mocker):
# arrange
address = "0x10"
state = GlobalState(None, None)
state = GlobalState(None, None, None)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
@ -172,7 +172,7 @@ def test_delegate_call(sym_mock, concrete_mock, curr_instruction):
active_account = Account('0x10')
environment = Environment(active_account, None, None, None, None, None)
state = GlobalState(None, environment)
state = GlobalState(None, environment, Node)
state.mstate.memory = ["placeholder", "calldata_bling_0"]
state.mstate.stack = [1, 2, 3]
assert state.get_current_instruction() == {'address': '0x10'}

@ -1,32 +0,0 @@
from mythril.ether.contractstorage import get_persistent_storage
import os
from tests import BaseTestCase
class GetAndSearchContractTestCase(BaseTestCase):
def setUp(self):
super(GetAndSearchContractTestCase, self).setUp()
script_path = os.path.dirname(os.path.realpath(__file__))
storage_dir = os.path.join(script_path, 'teststorage')
self.storage, self.db = get_persistent_storage(storage_dir)
def tearDown(self):
self.db.close()
super(GetAndSearchContractTestCase, self).tearDown()
def mockCallback(self, code_hash, code, addresses, balances):
self.code_hash = code_hash
self.isFound = True
pass
def runTest(self):
contract = self.storage.get_contract_by_hash(bytes.fromhex("ea061445eacbe86b7ffed2bb9e52075e"))
self.assertTrue("0x60606040" in contract.code, 'error reading contract code from database')
self.isFound = False
self.storage.search("code#PUSH1#", self.mockCallback)
self.assertTrue(self.isFound, 'storage search error')
self.assertEqual(self.code_hash, 'ea061445eacbe86b7ffed2bb9e52075e', 'storage search error')

@ -1,7 +1,7 @@
import json
from mythril.ether.soliditycontract import SolidityContract
from mythril.laser.ethereum.svm import GlobalState, MachineState
from mythril.laser.ethereum.state import GlobalState, MachineState
from mythril.laser.ethereum import svm
from tests import *
@ -48,7 +48,7 @@ IDENTITY_TEST[3] = (83269476937987, False)
def _all_info(laser):
accounts = {}
for address, _account in laser.accounts.items():
account = _account.as_dict()
account = _account.as_dict
account["code"] = account["code"].instruction_list
account['balance'] = str(account['balance'])
accounts[address] = account
@ -58,14 +58,14 @@ def _all_info(laser):
states = []
for state in node.states:
if isinstance(state, MachineState):
states.append(state.as_dict())
states.append(state.as_dict)
elif isinstance(state, GlobalState):
environment = state.environment.as_dict()
environment = state.environment.as_dict
environment["active_account"] = environment["active_account"].address
states.append({
'accounts': state.accounts.keys(),
'environment': environment,
'mstate': state.mstate.as_dict()
'mstate': state.mstate.as_dict
})
nodes[uid] = {
@ -78,7 +78,7 @@ def _all_info(laser):
'flags': str(node.flags)
}
edges = [edge.as_dict() for edge in laser.edges]
edges = [edge.as_dict for edge in laser.edges]
return {
'accounts': accounts,
@ -90,11 +90,11 @@ def _all_info(laser):
def _test_natives(laser_info, test_list, test_name):
success = 0
for i,j in test_list:
for i, j in test_list:
if (str(i) in laser_info) == j:
success+=1
success += 1
else:
print ("Failed: "+str(i)+" "+str(j))
print("Failed: "+str(i)+" "+str(j))
assert(success == len(test_list))

@ -4,7 +4,7 @@ from mythril.analysis.callgraph import generate_graph
from mythril.ether.ethcontract import ETHContract
from mythril.ether.soliditycontract import SolidityContract
from mythril.laser.ethereum.svm import GlobalState, MachineState
from mythril.laser.ethereum.state import GlobalState, MachineState
from mythril.laser.ethereum import svm
from tests import *
@ -19,7 +19,7 @@ class LaserEncoder(json.JSONEncoder):
def _all_info(laser):
accounts = {}
for address, _account in laser.accounts.items():
account = _account.as_dict()
account = _account.as_dict
account["code"] = account["code"].instruction_list
account['balance'] = str(account['balance'])
accounts[address] = account
@ -29,14 +29,14 @@ def _all_info(laser):
states = []
for state in node.states:
if isinstance(state, MachineState):
states.append(state.as_dict())
states.append(state.as_dict)
elif isinstance(state, GlobalState):
environment = state.environment.as_dict()
environment = state.environment.as_dict
environment["active_account"] = environment["active_account"].address
states.append({
'accounts': state.accounts.keys(),
'environment': environment,
'mstate': state.mstate.as_dict()
'mstate': state.mstate.as_dict
})
nodes[uid] = {
@ -49,7 +49,7 @@ def _all_info(laser):
'flags': str(node.flags)
}
edges = [edge.as_dict() for edge in laser.edges]
edges = [edge.as_dict for edge in laser.edges]
return {
'accounts': accounts,

@ -6,7 +6,7 @@ def test_result_state():
# arrange
taint_result = TaintResult()
record = TaintRecord()
state = GlobalState(2, None)
state = GlobalState(2, None, None)
state.mstate.stack = [1,2,3]
record.add_state(state)
record.stack = [False, False, False]
@ -23,7 +23,7 @@ def test_result_no_state():
# arrange
taint_result = TaintResult()
record = TaintRecord()
state = GlobalState(2, None)
state = GlobalState(2, None, None)
state.mstate.stack = [1,2,3]

@ -2,14 +2,15 @@ import mock
import pytest
from pytest_mock import mocker
from mythril.laser.ethereum.taint_analysis import *
from mythril.laser.ethereum.svm import GlobalState, Node, Edge, LaserEVM, MachineState
from mythril.laser.ethereum.svm import GlobalState, Node, Edge, LaserEVM
from mythril.laser.ethereum.state import MachineState
def test_execute_state(mocker):
record = TaintRecord()
record.stack = [True, False, True]
state = GlobalState(None, None)
state = GlobalState(None, None, None)
state.mstate.stack = [1, 2, 3]
mocker.patch.object(state, 'get_current_instruction')
state.get_current_instruction.return_value = {"opcode": "ADD"}
@ -26,13 +27,13 @@ def test_execute_node(mocker):
record = TaintRecord()
record.stack = [True, True, False, False]
state_1 = GlobalState(None, None)
state_1.mstate.stack = [1, 2, 3]
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')
state_1.get_current_instruction.return_value = {"opcode": "SWAP1"}
state_2 = GlobalState(None, 1)
state_2 = GlobalState(None, 1, None)
state_2.mstate.stack = [1, 2, 4, 1]
mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
@ -56,12 +57,12 @@ def test_execute_node(mocker):
def test_execute(mocker):
state_1 = GlobalState(None, None, MachineState(gas=10000000))
state_1 = GlobalState(None, None, None, MachineState(gas=10000000))
state_1.mstate.stack = [1, 2]
mocker.patch.object(state_1, 'get_current_instruction')
state_1.get_current_instruction.return_value = {"opcode": "PUSH"}
state_2 = GlobalState(None, None, MachineState(gas=10000000))
state_2 = GlobalState(None, None, None, MachineState(gas=10000000))
state_2.mstate.stack = [1, 2, 3]
mocker.patch.object(state_2, 'get_current_instruction')
state_2.get_current_instruction.return_value = {"opcode": "ADD"}
@ -69,7 +70,7 @@ def test_execute(mocker):
node_1 = Node("Test contract")
node_1.states = [state_1, state_2]
state_3 = GlobalState(None, None, MachineState(gas=10000000))
state_3 = GlobalState(None, None, None, MachineState(gas=10000000))
state_3.mstate.stack = [1, 2]
mocker.patch.object(state_3, 'get_current_instruction')
state_3.get_current_instruction.return_value = {"opcode": "ADD"}

@ -1,202 +0,0 @@
<html>
<head>
<style type="text/css">
#mynetwork {
background-color: #232625;
}
body {
background-color: #232625;
color: #ffffff;
font-size: 10px;
}
</style>
<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
<script>
var options = {
autoResize: true,
height: '100%',
width: '100%',
manipulation: false,
height: '90%',
layout: {
randomSeed: undefined,
improvedLayout:true,
hierarchical: {
enabled:true,
levelSeparation: 450,
nodeSpacing: 200,
treeSpacing: 100,
blockShifting: true,
edgeMinimization: true,
parentCentralization: false,
direction: 'LR', // UD, DU, LR, RL
sortMethod: 'directed' // hubsize, directed
}
},
nodes:{
borderWidth: 1,
borderWidthSelected: 2,
chosen: true,
shape: 'box',
font: {
align: 'left',
color: '#FFFFFF',
},
},
edges:{
font: {
color: '#ffffff',
size: 12, // px
face: 'arial',
background: 'none',
strokeWidth: 0, // px
strokeColor: '#ffffff',
align: 'horizontal',
multi: false,
vadjust: 0,
}
},
physics:{
enabled: false,
}
}
var nodes = [
{id: '672', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '131 JUMPDEST\n132 PUSH1 0x00\n134 DUP1\n135 REVERT\n', 'fullLabel': '131 JUMPDEST\n132 PUSH1 0x00\n134 DUP1\n135 REVERT\n', 'truncLabel': '131 JUMPDEST\n132 PUSH1 0x00\n134 DUP1\n135 REVERT\n', 'isExpanded': false},
{id: '677', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '191 JUMPDEST\n192 STOP\n', 'fullLabel': '191 JUMPDEST\n192 STOP\n', 'truncLabel': '191 JUMPDEST\n192 STOP\n', 'isExpanded': false},
{id: '676', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '483 JUMPDEST\n484 DUP1\n485 PUSH1 0x01\n487 PUSH1 0x00\n489 PUSH2 0x0100\n492 EXP\n(click to expand +)', 'fullLabel': '483 JUMPDEST\n484 DUP1\n485 PUSH1 0x01\n487 PUSH1 0x00\n489 PUSH2 0x0100\n492 EXP\n493 DUP2\n494 SLOAD\n495 DUP2\n496 PUSH20 0xffffffff(...)\n517 MUL\n518 NOT\n519 AND\n520 SWAP1\n521 DUP4\n522 PUSH20 0xffffffff(...)\n543 AND\n544 MUL\n545 OR\n546 SWAP1\n547 SSTORE\n548 POP\n549 POP\n550 JUMP\n', 'truncLabel': '483 JUMPDEST\n484 DUP1\n485 PUSH1 0x01\n487 PUSH1 0x00\n489 PUSH2 0x0100\n492 EXP\n(click to expand +)', 'isExpanded': false},
{id: '675', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '147 JUMPDEST\n148 PUSH2 0x00bf\n151 PUSH1 0x04\n153 DUP1\n154 DUP1\n155 CALLDATALOAD\n(click to expand +)', 'fullLabel': '147 JUMPDEST\n148 PUSH2 0x00bf\n151 PUSH1 0x04\n153 DUP1\n154 DUP1\n155 CALLDATALOAD\n156 PUSH20 0xffffffff(...)\n177 AND\n178 SWAP1\n179 PUSH1 0x20\n181 ADD\n182 SWAP1\n183 SWAP2\n184 SWAP1\n185 POP\n186 POP\n187 PUSH2 0x01e3\n190 JUMP\n', 'truncLabel': '147 JUMPDEST\n148 PUSH2 0x00bf\n151 PUSH1 0x04\n153 DUP1\n154 DUP1\n155 CALLDATALOAD\n(click to expand +)', 'isExpanded': false},
{id: '678', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '143 PUSH1 0x00\n145 DUP1\n146 REVERT\n', 'fullLabel': '143 PUSH1 0x00\n145 DUP1\n146 REVERT\n', 'truncLabel': '143 PUSH1 0x00\n145 DUP1\n146 REVERT\n', 'isExpanded': false},
{id: '674', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '136 _function_0x2776b163\n137 CALLVALUE\n138 ISZERO\n139 PUSH2 0x0093\n142 JUMPI\n', 'fullLabel': '136 _function_0x2776b163\n137 CALLVALUE\n138 ISZERO\n139 PUSH2 0x0093\n142 JUMPI\n', 'truncLabel': '136 _function_0x2776b163\n137 CALLVALUE\n138 ISZERO\n139 PUSH2 0x0093\n142 JUMPI\n', 'isExpanded': false},
{id: '683', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '212 JUMPDEST\n213 PUSH1 0x40\n215 MLOAD\n216 DUP1\n217 DUP3\n218 PUSH20 0xffffffff(...)\n(click to expand +)', 'fullLabel': '212 JUMPDEST\n213 PUSH1 0x40\n215 MLOAD\n216 DUP1\n217 DUP3\n218 PUSH20 0xffffffff(...)\n239 AND\n240 PUSH20 0xffffffff(...)\n261 AND\n262 DUP2\n263 MSTORE\n264 PUSH1 0x20\n266 ADD\n267 SWAP2\n268 POP\n269 POP\n270 PUSH1 0x40\n272 MLOAD\n273 DUP1\n274 SWAP2\n275 SUB\n276 SWAP1\n277 RETURN\n', 'truncLabel': '212 JUMPDEST\n213 PUSH1 0x40\n215 MLOAD\n216 DUP1\n217 DUP3\n218 PUSH20 0xffffffff(...)\n(click to expand +)', 'isExpanded': false},
{id: '682', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '551 JUMPDEST\n552 PUSH1 0x00\n554 DUP1\n555 SWAP1\n556 SLOAD\n557 SWAP1\n(click to expand +)', 'fullLabel': '551 JUMPDEST\n552 PUSH1 0x00\n554 DUP1\n555 SWAP1\n556 SLOAD\n557 SWAP1\n558 PUSH2 0x0100\n561 EXP\n562 SWAP1\n563 DIV\n564 PUSH20 0xffffffff(...)\n585 AND\n586 DUP2\n587 JUMP\n', 'truncLabel': '551 JUMPDEST\n552 PUSH1 0x00\n554 DUP1\n555 SWAP1\n556 SLOAD\n557 SWAP1\n(click to expand +)', 'isExpanded': false},
{id: '681', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '204 JUMPDEST\n205 PUSH2 0x00d4\n208 PUSH2 0x0227\n211 JUMP\n', 'fullLabel': '204 JUMPDEST\n205 PUSH2 0x00d4\n208 PUSH2 0x0227\n211 JUMP\n', 'truncLabel': '204 JUMPDEST\n205 PUSH2 0x00d4\n208 PUSH2 0x0227\n211 JUMP\n', 'isExpanded': false},
{id: '684', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '200 PUSH1 0x00\n202 DUP1\n203 REVERT\n', 'fullLabel': '200 PUSH1 0x00\n202 DUP1\n203 REVERT\n', 'truncLabel': '200 PUSH1 0x00\n202 DUP1\n203 REVERT\n', 'isExpanded': false},
{id: '680', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '193 _function_0x379bf63c\n194 CALLVALUE\n195 ISZERO\n196 PUSH2 0x00cc\n199 JUMPI\n', 'fullLabel': '193 _function_0x379bf63c\n194 CALLVALUE\n195 ISZERO\n196 PUSH2 0x00cc\n199 JUMPI\n', 'truncLabel': '193 _function_0x379bf63c\n194 CALLVALUE\n195 ISZERO\n196 PUSH2 0x00cc\n199 JUMPI\n', 'isExpanded': false},
{id: '689', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '297 JUMPDEST\n298 STOP\n', 'fullLabel': '297 JUMPDEST\n298 STOP\n', 'truncLabel': '297 JUMPDEST\n298 STOP\n', 'isExpanded': false},
{id: '688', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '588 JUMPDEST\n589 PUSH1 0x00\n591 DUP1\n592 SWAP1\n593 SLOAD\n594 SWAP1\n(click to expand +)', 'fullLabel': '588 JUMPDEST\n589 PUSH1 0x00\n591 DUP1\n592 SWAP1\n593 SLOAD\n594 SWAP1\n595 PUSH2 0x0100\n598 EXP\n599 SWAP1\n600 DIV\n601 PUSH20 0xffffffff(...)\n622 AND\n623 PUSH20 0xffffffff(...)\n644 AND\n645 PUSH1 0x40\n647 MLOAD\n648 PUSH1 0x00\n650 PUSH1 0x40\n652 MLOAD\n653 DUP1\n654 DUP4\n655 SUB\n656 DUP2\n657 PUSH1 0x00\n659 DUP7\n660 GAS\n661 CALL\n662 SWAP2\n663 POP\n664 POP\n665 POP\n666 JUMP\n', 'truncLabel': '588 JUMPDEST\n589 PUSH1 0x00\n591 DUP1\n592 SWAP1\n593 SLOAD\n594 SWAP1\n(click to expand +)', 'isExpanded': false},
{id: '687', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '289 JUMPDEST\n290 PUSH2 0x0129\n293 PUSH2 0x024c\n296 JUMP\n', 'fullLabel': '289 JUMPDEST\n290 PUSH2 0x0129\n293 PUSH2 0x024c\n296 JUMP\n', 'truncLabel': '289 JUMPDEST\n290 PUSH2 0x0129\n293 PUSH2 0x024c\n296 JUMP\n', 'isExpanded': false},
{id: '690', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '285 PUSH1 0x00\n287 DUP1\n288 REVERT\n', 'fullLabel': '285 PUSH1 0x00\n287 DUP1\n288 REVERT\n', 'truncLabel': '285 PUSH1 0x00\n287 DUP1\n288 REVERT\n', 'isExpanded': false},
{id: '686', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '278 _function_0x5a6814ec\n279 CALLVALUE\n280 ISZERO\n281 PUSH2 0x0121\n284 JUMPI\n', 'fullLabel': '278 _function_0x5a6814ec\n279 CALLVALUE\n280 ISZERO\n281 PUSH2 0x0121\n284 JUMPI\n', 'truncLabel': '278 _function_0x5a6814ec\n279 CALLVALUE\n280 ISZERO\n281 PUSH2 0x0121\n284 JUMPI\n', 'isExpanded': false},
{id: '695', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '318 JUMPDEST\n319 PUSH1 0x40\n321 MLOAD\n322 DUP1\n323 DUP3\n324 PUSH20 0xffffffff(...)\n(click to expand +)', 'fullLabel': '318 JUMPDEST\n319 PUSH1 0x40\n321 MLOAD\n322 DUP1\n323 DUP3\n324 PUSH20 0xffffffff(...)\n345 AND\n346 PUSH20 0xffffffff(...)\n367 AND\n368 DUP2\n369 MSTORE\n370 PUSH1 0x20\n372 ADD\n373 SWAP2\n374 POP\n375 POP\n376 PUSH1 0x40\n378 MLOAD\n379 DUP1\n380 SWAP2\n381 SUB\n382 SWAP1\n383 RETURN\n', 'truncLabel': '318 JUMPDEST\n319 PUSH1 0x40\n321 MLOAD\n322 DUP1\n323 DUP3\n324 PUSH20 0xffffffff(...)\n(click to expand +)', 'isExpanded': false},
{id: '694', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '667 JUMPDEST\n668 PUSH1 0x01\n670 PUSH1 0x00\n672 SWAP1\n673 SLOAD\n674 SWAP1\n(click to expand +)', 'fullLabel': '667 JUMPDEST\n668 PUSH1 0x01\n670 PUSH1 0x00\n672 SWAP1\n673 SLOAD\n674 SWAP1\n675 PUSH2 0x0100\n678 EXP\n679 SWAP1\n680 DIV\n681 PUSH20 0xffffffff(...)\n702 AND\n703 DUP2\n704 JUMP\n', 'truncLabel': '667 JUMPDEST\n668 PUSH1 0x01\n670 PUSH1 0x00\n672 SWAP1\n673 SLOAD\n674 SWAP1\n(click to expand +)', 'isExpanded': false},
{id: '693', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '310 JUMPDEST\n311 PUSH2 0x013e\n314 PUSH2 0x029b\n317 JUMP\n', 'fullLabel': '310 JUMPDEST\n311 PUSH2 0x013e\n314 PUSH2 0x029b\n317 JUMP\n', 'truncLabel': '310 JUMPDEST\n311 PUSH2 0x013e\n314 PUSH2 0x029b\n317 JUMP\n', 'isExpanded': false},
{id: '696', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '306 PUSH1 0x00\n308 DUP1\n309 REVERT\n', 'fullLabel': '306 PUSH1 0x00\n308 DUP1\n309 REVERT\n', 'truncLabel': '306 PUSH1 0x00\n308 DUP1\n309 REVERT\n', 'isExpanded': false},
{id: '692', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '299 _function_0xb5d02c8a\n300 CALLVALUE\n301 ISZERO\n302 PUSH2 0x0136\n305 JUMPI\n', 'fullLabel': '299 _function_0xb5d02c8a\n300 CALLVALUE\n301 ISZERO\n302 PUSH2 0x0136\n305 JUMPI\n', 'truncLabel': '299 _function_0xb5d02c8a\n300 CALLVALUE\n301 ISZERO\n302 PUSH2 0x0136\n305 JUMPI\n', 'isExpanded': false},
{id: '701', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '403 JUMPDEST\n404 STOP\n', 'fullLabel': '403 JUMPDEST\n404 STOP\n', 'truncLabel': '403 JUMPDEST\n404 STOP\n', 'isExpanded': false},
{id: '700', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '705 JUMPDEST\n706 PUSH1 0x01\n708 PUSH1 0x00\n710 SWAP1\n711 SLOAD\n712 SWAP1\n(click to expand +)', 'fullLabel': '705 JUMPDEST\n706 PUSH1 0x01\n708 PUSH1 0x00\n710 SWAP1\n711 SLOAD\n712 SWAP1\n713 PUSH2 0x0100\n716 EXP\n717 SWAP1\n718 DIV\n719 PUSH20 0xffffffff(...)\n740 AND\n741 PUSH20 0xffffffff(...)\n762 AND\n763 PUSH1 0x40\n765 MLOAD\n766 PUSH1 0x00\n768 PUSH1 0x40\n770 MLOAD\n771 DUP1\n772 DUP4\n773 SUB\n774 DUP2\n775 PUSH1 0x00\n777 DUP7\n778 GAS\n779 CALL\n780 SWAP2\n781 POP\n782 POP\n783 POP\n784 JUMP\n', 'truncLabel': '705 JUMPDEST\n706 PUSH1 0x01\n708 PUSH1 0x00\n710 SWAP1\n711 SLOAD\n712 SWAP1\n(click to expand +)', 'isExpanded': false},
{id: '699', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '395 JUMPDEST\n396 PUSH2 0x0193\n399 PUSH2 0x02c1\n402 JUMP\n', 'fullLabel': '395 JUMPDEST\n396 PUSH2 0x0193\n399 PUSH2 0x02c1\n402 JUMP\n', 'truncLabel': '395 JUMPDEST\n396 PUSH2 0x0193\n399 PUSH2 0x02c1\n402 JUMP\n', 'isExpanded': false},
{id: '702', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '391 PUSH1 0x00\n393 DUP1\n394 REVERT\n', 'fullLabel': '391 PUSH1 0x00\n393 DUP1\n394 REVERT\n', 'truncLabel': '391 PUSH1 0x00\n393 DUP1\n394 REVERT\n', 'isExpanded': false},
{id: '698', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '384 _function_0xd24b08cc\n385 CALLVALUE\n386 ISZERO\n387 PUSH2 0x018b\n390 JUMPI\n', 'fullLabel': '384 _function_0xd24b08cc\n385 CALLVALUE\n386 ISZERO\n387 PUSH2 0x018b\n390 JUMPI\n', 'truncLabel': '384 _function_0xd24b08cc\n385 CALLVALUE\n386 ISZERO\n387 PUSH2 0x018b\n390 JUMPI\n', 'isExpanded': false},
{id: '707', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '424 JUMPDEST\n425 STOP\n', 'fullLabel': '424 JUMPDEST\n425 STOP\n', 'truncLabel': '424 JUMPDEST\n425 STOP\n', 'isExpanded': false},
{id: '706', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '785 JUMPDEST\n786 PUSH1 0x00\n788 DUP1\n789 SWAP1\n790 SLOAD\n791 SWAP1\n(click to expand +)', 'fullLabel': '785 JUMPDEST\n786 PUSH1 0x00\n788 DUP1\n789 SWAP1\n790 SLOAD\n791 SWAP1\n792 PUSH2 0x0100\n795 EXP\n796 SWAP1\n797 DIV\n798 PUSH20 0xffffffff(...)\n819 AND\n820 PUSH20 0xffffffff(...)\n841 AND\n842 PUSH1 0x40\n844 MLOAD\n845 PUSH1 0x00\n847 PUSH1 0x40\n849 MLOAD\n850 DUP1\n851 DUP4\n852 SUB\n853 DUP2\n854 PUSH1 0x00\n856 DUP7\n857 GAS\n858 CALL\n859 SWAP2\n860 POP\n861 POP\n862 POP\n863 PUSH1 0x00\n865 PUSH1 0x02\n867 DUP2\n868 SWAP1\n869 SSTORE\n870 POP\n871 JUMP\n', 'truncLabel': '785 JUMPDEST\n786 PUSH1 0x00\n788 DUP1\n789 SWAP1\n790 SLOAD\n791 SWAP1\n(click to expand +)', 'isExpanded': false},
{id: '705', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '416 JUMPDEST\n417 PUSH2 0x01a8\n420 PUSH2 0x0311\n423 JUMP\n', 'fullLabel': '416 JUMPDEST\n417 PUSH2 0x01a8\n420 PUSH2 0x0311\n423 JUMP\n', 'truncLabel': '416 JUMPDEST\n417 PUSH2 0x01a8\n420 PUSH2 0x0311\n423 JUMP\n', 'isExpanded': false},
{id: '708', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '412 PUSH1 0x00\n414 DUP1\n415 REVERT\n', 'fullLabel': '412 PUSH1 0x00\n414 DUP1\n415 REVERT\n', 'truncLabel': '412 PUSH1 0x00\n414 DUP1\n415 REVERT\n', 'isExpanded': false},
{id: '704', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '405 _function_0xe11f493e\n406 CALLVALUE\n407 ISZERO\n408 PUSH2 0x01a0\n411 JUMPI\n', 'fullLabel': '405 _function_0xe11f493e\n406 CALLVALUE\n407 ISZERO\n408 PUSH2 0x01a0\n411 JUMPI\n', 'truncLabel': '405 _function_0xe11f493e\n406 CALLVALUE\n407 ISZERO\n408 PUSH2 0x01a0\n411 JUMPI\n', 'isExpanded': false},
{id: '713', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '481 JUMPDEST\n482 STOP\n', 'fullLabel': '481 JUMPDEST\n482 STOP\n', 'truncLabel': '481 JUMPDEST\n482 STOP\n', 'isExpanded': false},
{id: '712', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '872 JUMPDEST\n873 DUP1\n874 PUSH20 0xffffffff(...)\n895 AND\n896 PUSH1 0x40\n898 MLOAD\n(click to expand +)', 'fullLabel': '872 JUMPDEST\n873 DUP1\n874 PUSH20 0xffffffff(...)\n895 AND\n896 PUSH1 0x40\n898 MLOAD\n899 PUSH1 0x00\n901 PUSH1 0x40\n903 MLOAD\n904 DUP1\n905 DUP4\n906 SUB\n907 DUP2\n908 PUSH1 0x00\n910 DUP7\n911 GAS\n912 CALL\n913 SWAP2\n914 POP\n915 POP\n916 POP\n917 POP\n918 JUMP\n', 'truncLabel': '872 JUMPDEST\n873 DUP1\n874 PUSH20 0xffffffff(...)\n895 AND\n896 PUSH1 0x40\n898 MLOAD\n(click to expand +)', 'isExpanded': false},
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<p>Mythril / LASER Symbolic VM</p>
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@ -1,86 +1 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Message call to external contract",
"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",
"type": "Informational",
"address": 661,
"debug": "<DEBUG-DATA>"
},
{
"title": "Message call to external contract",
"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",
"type": "Warning",
"address": 779,
"debug": "<DEBUG-DATA>"
},
{
"title": "Message call to external contract",
"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",
"type": "Informational",
"address": 858,
"debug": "<DEBUG-DATA>"
},
{
"title": "State change after external call",
"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",
"type": "Warning",
"address": 869,
"debug": "<DEBUG-DATA>"
},
{
"title": "Message call to external contract",
"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",
"type": "Warning",
"address": 912,
"debug": "<DEBUG-DATA>"
},
{
"title": "Transaction order dependence",
"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",
"type": "Warning",
"address": 779,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0x5a6814ec",
"type": "Informational",
"address": 661,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
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"function": "_function_0xd24b08cc",
"type": "Informational",
"address": 779,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xe11f493e",
"type": "Informational",
"address": 858,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xe1d10f79",
"type": "Informational",
"address": 912,
"debug": "<DEBUG-DATA>"
}
]
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@ -16,7 +16,7 @@ This contract executes a message call to to another contract. Make sure that the
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x5a6814ec`
- PC address: 661
- PC address: 666
### Description
@ -49,7 +49,7 @@ A possible transaction order independence vulnerability exists in function _func
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xd24b08cc`
- PC address: 779
- PC address: 784
### Description
@ -66,27 +66,27 @@ 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.
## Unchecked CALL return value
## State change after external call
- Type: Informational
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe11f493e`
- PC address: 858
- PC address: 869
### Description
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
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.
## State change after external call
## Unchecked CALL return value
- Type: Warning
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe11f493e`
- PC address: 869
- PC address: 871
### 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.
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
@ -104,7 +104,7 @@ This contract executes a message call to an address provided as a function argum
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe1d10f79`
- PC address: 912
- PC address: 918
### Description

@ -10,7 +10,7 @@ This contract executes a message call to to another contract. Make sure that the
Type: Informational
Contract: Unknown
Function name: _function_0x5a6814ec
PC address: 661
PC address: 666
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
@ -34,7 +34,7 @@ A possible transaction order independence vulnerability exists in function _func
Type: Informational
Contract: Unknown
Function name: _function_0xd24b08cc
PC address: 779
PC address: 784
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
@ -46,14 +46,6 @@ 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.
--------------------
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0xe11f493e
PC address: 858
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
==== State change after external call ====
Type: Warning
Contract: Unknown
@ -62,6 +54,14 @@ 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 ====
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 ====
Type: Warning
Contract: Unknown
@ -74,7 +74,7 @@ This contract executes a message call to an address provided as a function argum
Type: Informational
Contract: Unknown
Function name: _function_0xe1d10f79
PC address: 912
PC address: 918
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------

@ -1,28 +0,0 @@
{
"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": 816,
"debug": "<DEBUG-DATA>",
"filename": "<TESTDATA>/inputs/ether_send.sol",
"lineno": 18,
"code": "msg.sender.transfer(this.balance)"
},
{
"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": 483,
"debug": "<DEBUG-DATA>",
"filename": "<TESTDATA>/inputs/ether_send.sol",
"lineno": 24,
"code": "balances[msg.sender] += msg.value"
}
]
}

File diff suppressed because one or more lines are too long

@ -1,22 +1 @@
{
"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>"
}
]
}
{"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}

@ -1,252 +0,0 @@
<html>
<head>
<style type="text/css">
#mynetwork {
background-color: #232625;
}
body {
background-color: #232625;
color: #ffffff;
font-size: 10px;
}
</style>
<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
<script>
var options = {
autoResize: true,
height: '100%',
width: '100%',
manipulation: false,
height: '90%',
layout: {
randomSeed: undefined,
improvedLayout:true,
hierarchical: {
enabled:true,
levelSeparation: 450,
nodeSpacing: 200,
treeSpacing: 100,
blockShifting: true,
edgeMinimization: true,
parentCentralization: false,
direction: 'LR', // UD, DU, LR, RL
sortMethod: 'directed' // hubsize, directed
}
},
nodes:{
borderWidth: 1,
borderWidthSelected: 2,
chosen: true,
shape: 'box',
font: {
align: 'left',
color: '#FFFFFF',
},
},
edges:{
font: {
color: '#ffffff',
size: 12, // px
face: 'arial',
background: 'none',
strokeWidth: 0, // px
strokeColor: '#ffffff',
align: 'horizontal',
multi: false,
vadjust: 0,
}
},
physics:{
enabled: false,
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{id: '1111', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '446 ASSERT_FAIL\n', 'fullLabel': '446 ASSERT_FAIL\n', 'truncLabel': '446 ASSERT_FAIL\n', 'isExpanded': false},
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{id: '1118', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '250 JUMPDEST\n251 STOP\n', 'fullLabel': '250 JUMPDEST\n251 STOP\n', 'truncLabel': '250 JUMPDEST\n251 STOP\n', 'isExpanded': false},
{id: '1117', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '466 JUMPDEST\n467 POP\n468 JUMP\n', 'fullLabel': '466 JUMPDEST\n467 POP\n468 JUMP\n', 'truncLabel': '466 JUMPDEST\n467 POP\n468 JUMP\n', 'isExpanded': false},
{id: '1119', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '462 PUSH1 0x00\n464 DUP1\n465 REVERT\n', 'fullLabel': '462 PUSH1 0x00\n464 DUP1\n465 REVERT\n', 'truncLabel': '462 PUSH1 0x00\n464 DUP1\n465 REVERT\n', 'isExpanded': false},
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{id: '1122', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '252 _function_0x92dd38ea\n253 CALLVALUE\n254 ISZERO\n255 PUSH2 0x0107\n258 JUMPI\n', 'fullLabel': '252 _function_0x92dd38ea\n253 CALLVALUE\n254 ISZERO\n255 PUSH2 0x0107\n258 JUMPI\n', 'truncLabel': '252 _function_0x92dd38ea\n253 CALLVALUE\n254 ISZERO\n255 PUSH2 0x0107\n258 JUMPI\n', 'isExpanded': false},
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<p>Mythril / LASER Symbolic VM</p>
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{id: '1217', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '313 PUSH1 0x00\n315 DUP1\n316 REVERT\n', 'fullLabel': '313 PUSH1 0x00\n315 DUP1\n316 REVERT\n', 'truncLabel': '313 PUSH1 0x00\n315 DUP1\n316 REVERT\n', 'isExpanded': false},
{id: '1213', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '306 _function_0x9b58bc26\n307 CALLVALUE\n308 ISZERO\n309 PUSH2 0x013d\n312 JUMPI\n', 'fullLabel': '306 _function_0x9b58bc26\n307 CALLVALUE\n308 ISZERO\n309 PUSH2 0x013d\n312 JUMPI\n', 'truncLabel': '306 _function_0x9b58bc26\n307 CALLVALUE\n308 ISZERO\n309 PUSH2 0x013d\n312 JUMPI\n', 'isExpanded': false},
{id: '1222', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '436 JUMPDEST\n437 STOP\n', 'fullLabel': '436 JUMPDEST\n437 STOP\n', 'truncLabel': '436 JUMPDEST\n437 STOP\n', 'isExpanded': false},
{id: '1221', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '858 JUMPDEST\n859 DUP2\n860 PUSH20 0xffffffff(...)\n881 AND\n882 PUSH1 0x40\n884 MLOAD\n(click to expand +)', 'fullLabel': '858 JUMPDEST\n859 DUP2\n860 PUSH20 0xffffffff(...)\n881 AND\n882 PUSH1 0x40\n884 MLOAD\n885 DUP1\n886 DUP1\n887 PUSH32 0x7365744e(...)\n920 DUP2\n921 MSTORE\n922 POP\n923 PUSH1 0x0d\n925 ADD\n926 SWAP1\n927 POP\n928 PUSH1 0x40\n930 MLOAD\n931 DUP1\n932 SWAP2\n933 SUB\n934 SWAP1\n935 SHA3\n936 PUSH29 0x01000000(...)\n966 SWAP1\n967 DIV\n968 DUP3\n969 PUSH1 0x40\n971 MLOAD\n972 DUP3\n973 PUSH4 0xffffffff\n978 AND\n979 PUSH29 0x01000000(...)\n1009 MUL\n1010 DUP2\n1011 MSTORE\n1012 PUSH1 0x04\n1014 ADD\n1015 DUP1\n1016 DUP3\n1017 DUP2\n1018 MSTORE\n1019 PUSH1 0x20\n1021 ADD\n1022 SWAP2\n1023 POP\n1024 POP\n1025 PUSH1 0x00\n1027 PUSH1 0x40\n1029 MLOAD\n1030 DUP1\n1031 DUP4\n1032 SUB\n1033 DUP2\n1034 PUSH1 0x00\n1036 DUP8\n1037 GAS\n1038 CALL\n1039 SWAP3\n1040 POP\n1041 POP\n1042 POP\n1043 POP\n1044 POP\n1045 POP\n1046 JUMP\n', 'truncLabel': '858 JUMPDEST\n859 DUP2\n860 PUSH20 0xffffffff(...)\n881 AND\n882 PUSH1 0x40\n884 MLOAD\n(click to expand +)', 'isExpanded': false},
{id: '1220', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '383 JUMPDEST\n384 PUSH2 0x01b4\n387 PUSH1 0x04\n389 DUP1\n390 DUP1\n391 CALLDATALOAD\n(click to expand +)', 'fullLabel': '383 JUMPDEST\n384 PUSH2 0x01b4\n387 PUSH1 0x04\n389 DUP1\n390 DUP1\n391 CALLDATALOAD\n392 PUSH20 0xffffffff(...)\n413 AND\n414 SWAP1\n415 PUSH1 0x20\n417 ADD\n418 SWAP1\n419 SWAP2\n420 SWAP1\n421 DUP1\n422 CALLDATALOAD\n423 SWAP1\n424 PUSH1 0x20\n426 ADD\n427 SWAP1\n428 SWAP2\n429 SWAP1\n430 POP\n431 POP\n432 PUSH2 0x035a\n435 JUMP\n', 'truncLabel': '383 JUMPDEST\n384 PUSH2 0x01b4\n387 PUSH1 0x04\n389 DUP1\n390 DUP1\n391 CALLDATALOAD\n(click to expand +)', 'isExpanded': false},
{id: '1223', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '379 PUSH1 0x00\n381 DUP1\n382 REVERT\n', 'fullLabel': '379 PUSH1 0x00\n381 DUP1\n382 REVERT\n', 'truncLabel': '379 PUSH1 0x00\n381 DUP1\n382 REVERT\n', 'isExpanded': false},
{id: '1219', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '372 _function_0xeea4c864\n373 CALLVALUE\n374 ISZERO\n375 PUSH2 0x017f\n378 JUMPI\n', 'fullLabel': '372 _function_0xeea4c864\n373 CALLVALUE\n374 ISZERO\n375 PUSH2 0x017f\n378 JUMPI\n', 'truncLabel': '372 _function_0xeea4c864\n373 CALLVALUE\n374 ISZERO\n375 PUSH2 0x017f\n378 JUMPI\n', 'isExpanded': false},
{id: '1224', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '109 JUMPDEST\n110 PUSH1 0x00\n112 DUP1\n113 REVERT\n', 'fullLabel': '109 JUMPDEST\n110 PUSH1 0x00\n112 DUP1\n113 REVERT\n', 'truncLabel': '109 JUMPDEST\n110 PUSH1 0x00\n112 DUP1\n113 REVERT\n', 'isExpanded': false},
{id: '1218', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '98 DUP1\n99 PUSH4 0xeea4c864\n104 EQ\n105 PUSH2 0x0174\n108 JUMPI\n', 'fullLabel': '98 DUP1\n99 PUSH4 0xeea4c864\n104 EQ\n105 PUSH2 0x0174\n108 JUMPI\n', 'truncLabel': '98 DUP1\n99 PUSH4 0xeea4c864\n104 EQ\n105 PUSH2 0x0174\n108 JUMPI\n', 'isExpanded': false},
{id: '1212', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '87 DUP1\n88 PUSH4 0x9b58bc26\n93 EQ\n94 PUSH2 0x0132\n97 JUMPI\n', 'fullLabel': '87 DUP1\n88 PUSH4 0x9b58bc26\n93 EQ\n94 PUSH2 0x0132\n97 JUMPI\n', 'truncLabel': '87 DUP1\n88 PUSH4 0x9b58bc26\n93 EQ\n94 PUSH2 0x0132\n97 JUMPI\n', 'isExpanded': false},
{id: '1206', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '76 DUP1\n77 PUSH4 0x67e404ce\n82 EQ\n83 PUSH2 0x00dd\n86 JUMPI\n', 'fullLabel': '76 DUP1\n77 PUSH4 0x67e404ce\n82 EQ\n83 PUSH2 0x00dd\n86 JUMPI\n', 'truncLabel': '76 DUP1\n77 PUSH4 0x67e404ce\n82 EQ\n83 PUSH2 0x00dd\n86 JUMPI\n', 'isExpanded': false},
{id: '1200', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '65 DUP1\n66 PUSH4 0x2e52d606\n71 EQ\n72 PUSH2 0x00b4\n75 JUMPI\n', 'fullLabel': '65 DUP1\n66 PUSH4 0x2e52d606\n71 EQ\n72 PUSH2 0x00b4\n75 JUMPI\n', 'truncLabel': '65 DUP1\n66 PUSH4 0x2e52d606\n71 EQ\n72 PUSH2 0x00b4\n75 JUMPI\n', 'isExpanded': false},
{id: '1194', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '13 PUSH1 0x00\n15 CALLDATALOAD\n16 PUSH29 0x01000000(...)\n46 SWAP1\n47 DIV\n48 PUSH4 0xffffffff\n(click to expand +)', 'fullLabel': '13 PUSH1 0x00\n15 CALLDATALOAD\n16 PUSH29 0x01000000(...)\n46 SWAP1\n47 DIV\n48 PUSH4 0xffffffff\n53 AND\n54 DUP1\n55 PUSH4 0x141f32ff\n60 EQ\n61 PUSH2 0x0072\n64 JUMPI\n', 'truncLabel': '13 PUSH1 0x00\n15 CALLDATALOAD\n16 PUSH29 0x01000000(...)\n46 SWAP1\n47 DIV\n48 PUSH4 0xffffffff\n(click to expand +)', 'isExpanded': false},
{id: '1192', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '0 PUSH1 0x60\n2 PUSH1 0x40\n4 MSTORE\n5 PUSH1 0x04\n7 CALLDATASIZE\n8 LT\n(click to expand +)', 'fullLabel': '0 PUSH1 0x60\n2 PUSH1 0x40\n4 MSTORE\n5 PUSH1 0x04\n7 CALLDATASIZE\n8 LT\n9 PUSH2 0x006d\n12 JUMPI\n', 'truncLabel': '0 PUSH1 0x60\n2 PUSH1 0x40\n4 MSTORE\n5 PUSH1 0x04\n7 CALLDATASIZE\n8 LT\n(click to expand +)', 'isExpanded': false}
];
var edges = [
{from: '1192', to: '1193', 'arrows': 'to', 'label': 'Not(ULE(4, calldatasize_D))', 'smooth': {'type': 'cubicBezier'}},
{from: '1197', to: '1198', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1196', to: '1197', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1195', to: '1196', 'arrows': 'to', 'label': 'callvalue == 0', 'smooth': {'type': 'cubicBezier'}},
{from: '1195', to: '1199', 'arrows': 'to', 'label': 'Not(callvalue == 0)', 'smooth': {'type': 'cubicBezier'}},
{from: '1194', to: '1195', 'arrows': 'to', 'label': 'Extract(0xff, 0xe0, calldata_D_0) == 0x141f32ff', 'smooth': {'type': 'cubicBezier'}},
{from: '1203', to: '1204', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1202', to: '1203', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1201', to: '1202', 'arrows': 'to', 'label': 'callvalue == 0', 'smooth': {'type': 'cubicBezier'}},
{from: '1201', to: '1205', 'arrows': 'to', 'label': 'Not(callvalue == 0)', 'smooth': {'type': 'cubicBezier'}},
{from: '1200', to: '1201', 'arrows': 'to', 'label': 'Extract(0xff, 0xe0, calldata_D_0) == 0x2e52d606', 'smooth': {'type': 'cubicBezier'}},
{from: '1209', to: '1210', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1208', to: '1209', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1207', to: '1208', 'arrows': 'to', 'label': 'callvalue == 0', 'smooth': {'type': 'cubicBezier'}},
{from: '1207', to: '1211', 'arrows': 'to', 'label': 'Not(callvalue == 0)', 'smooth': {'type': 'cubicBezier'}},
{from: '1206', to: '1207', 'arrows': 'to', 'label': 'Extract(0xff, 0xe0, calldata_D_0) == 0x67e404ce', 'smooth': {'type': 'cubicBezier'}},
{from: '1215', to: '1216', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1214', to: '1215', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1213', to: '1214', 'arrows': 'to', 'label': 'callvalue == 0', 'smooth': {'type': 'cubicBezier'}},
{from: '1213', to: '1217', 'arrows': 'to', 'label': 'Not(callvalue == 0)', 'smooth': {'type': 'cubicBezier'}},
{from: '1212', to: '1213', 'arrows': 'to', 'label': 'Extract(0xff, 0xe0, calldata_D_0) == 0x9b58bc26', 'smooth': {'type': 'cubicBezier'}},
{from: '1221', to: '1222', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1220', to: '1221', 'arrows': 'to', 'label': '', 'smooth': {'type': 'cubicBezier'}},
{from: '1219', to: '1220', 'arrows': 'to', 'label': 'callvalue == 0', 'smooth': {'type': 'cubicBezier'}},
{from: '1219', to: '1223', 'arrows': 'to', 'label': 'Not(callvalue == 0)', 'smooth': {'type': 'cubicBezier'}},
{from: '1218', to: '1219', 'arrows': 'to', 'label': 'Extract(0xff, 0xe0, calldata_D_0) == 0xeea4c864', 'smooth': {'type': 'cubicBezier'}},
{from: '1218', to: '1224', 'arrows': 'to', 'label': 'Not(Extract(0xff, 0xe0, calldata_D_0) == 0xeea4c864)', 'smooth': {'type': 'cubicBezier'}},
{from: '1212', to: '1218', 'arrows': 'to', 'label': 'Not(Extract(0xff, 0xe0, calldata_D_0) == 0x9b58bc26)', 'smooth': {'type': 'cubicBezier'}},
{from: '1206', to: '1212', 'arrows': 'to', 'label': 'Not(Extract(0xff, 0xe0, calldata_D_0) == 0x67e404ce)', 'smooth': {'type': 'cubicBezier'}},
{from: '1200', to: '1206', 'arrows': 'to', 'label': 'Not(Extract(0xff, 0xe0, calldata_D_0) == 0x2e52d606)', 'smooth': {'type': 'cubicBezier'}},
{from: '1194', to: '1200', 'arrows': 'to', 'label': 'Not(Extract(0xff, 0xe0, calldata_D_0) == 0x141f32ff)', 'smooth': {'type': 'cubicBezier'}},
{from: '1192', to: '1194', 'arrows': 'to', 'label': 'ULE(4, calldatasize_D)', 'smooth': {'type': 'cubicBezier'}}
];
</script>
</head>
<body>
<p>Mythril / LASER Symbolic VM</p>
<p><div id="mynetwork"></div><br/></p>
<script type="text/javascript">
var container = document.getElementById('mynetwork');
var nodesSet = new vis.DataSet(nodes);
var edgesSet = new vis.DataSet(edges);
var data = {'nodes': nodesSet, 'edges': edgesSet}
var gph = new vis.Network(container, data, options);
gph.on("click", function (params) {
// parse node id
var nodeID = params['nodes']['0'];
if (nodeID) {
var clickedNode = nodesSet.get(nodeID);
if(clickedNode.isExpanded) {
clickedNode.label = clickedNode.truncLabel;
}
else {
clickedNode.label = clickedNode.fullLabel;
}
clickedNode.isExpanded = !clickedNode.isExpanded;
nodesSet.update(clickedNode);
}
});
</script>
</body>
</html>

File diff suppressed because one or more lines are too long

@ -1,22 +1 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Message call to external contract",
"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",
"type": "Warning",
"address": 1038,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xeea4c864",
"type": "Informational",
"address": 1038,
"debug": "<DEBUG-DATA>"
}
]
}
{"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}

@ -1,5 +1,27 @@
# Analysis results for test-filename.sol
## Unchecked CALL return value
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x141f32ff`
- PC address: 626
### Description
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Unchecked CALL return value
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x9b58bc26`
- PC address: 857
### 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
- Type: Warning
@ -16,7 +38,7 @@ This contract executes a message call to an address provided as a function argum
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xeea4c864`
- PC address: 1038
- PC address: 1046
### Description

@ -1,3 +1,19 @@
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0x141f32ff
PC address: 626
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0x9b58bc26
PC address: 857
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 ====
Type: Warning
Contract: Unknown
@ -10,7 +26,7 @@ This contract executes a message call to an address provided as a function argum
Type: Informational
Contract: Unknown
Function name: _function_0xeea4c864
PC address: 1038
PC address: 1046
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------

@ -1,150 +0,0 @@
<html>
<head>
<style type="text/css">
#mynetwork {
background-color: #232625;
}
body {
background-color: #232625;
color: #ffffff;
font-size: 10px;
}
</style>
<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
<script>
var options = {
autoResize: true,
height: '100%',
width: '100%',
manipulation: false,
height: '90%',
layout: {
randomSeed: undefined,
improvedLayout:true,
hierarchical: {
enabled:true,
levelSeparation: 450,
nodeSpacing: 200,
treeSpacing: 100,
blockShifting: true,
edgeMinimization: true,
parentCentralization: false,
direction: 'LR', // UD, DU, LR, RL
sortMethod: 'directed' // hubsize, directed
}
},
nodes:{
borderWidth: 1,
borderWidthSelected: 2,
chosen: true,
shape: 'box',
font: {
align: 'left',
color: '#FFFFFF',
},
},
edges:{
font: {
color: '#ffffff',
size: 12, // px
face: 'arial',
background: 'none',
strokeWidth: 0, // px
strokeColor: '#ffffff',
align: 'horizontal',
multi: false,
vadjust: 0,
}
},
physics:{
enabled: false,
}
}
var nodes = [
{id: '1174', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '76 JUMPDEST\n77 PUSH1 0x00\n79 DUP1\n80 REVERT\n', 'fullLabel': '76 JUMPDEST\n77 PUSH1 0x00\n79 DUP1\n80 REVERT\n', 'truncLabel': '76 JUMPDEST\n77 PUSH1 0x00\n79 DUP1\n80 REVERT\n', 'isExpanded': false},
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{id: '1180', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '88 PUSH1 0x00\n90 DUP1\n91 REVERT\n', 'fullLabel': '88 PUSH1 0x00\n90 DUP1\n91 REVERT\n', 'truncLabel': '88 PUSH1 0x00\n90 DUP1\n91 REVERT\n', 'isExpanded': false},
{id: '1176', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '81 _function_0x27e235e3\n82 CALLVALUE\n83 ISZERO\n84 PUSH2 0x005c\n87 JUMPI\n', 'fullLabel': '81 _function_0x27e235e3\n82 CALLVALUE\n83 ISZERO\n84 PUSH2 0x005c\n87 JUMPI\n', 'truncLabel': '81 _function_0x27e235e3\n82 CALLVALUE\n83 ISZERO\n84 PUSH2 0x005c\n87 JUMPI\n', 'isExpanded': false},
{id: '1186', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '222 JUMPDEST\n223 PUSH1 0x40\n225 MLOAD\n226 DUP1\n227 DUP3\n228 ISZERO\n(click to expand +)', 'fullLabel': '222 JUMPDEST\n223 PUSH1 0x40\n225 MLOAD\n226 DUP1\n227 DUP3\n228 ISZERO\n229 ISZERO\n230 ISZERO\n231 ISZERO\n232 DUP2\n233 MSTORE\n234 PUSH1 0x20\n236 ADD\n237 SWAP2\n238 POP\n239 POP\n240 PUSH1 0x40\n242 MLOAD\n243 DUP1\n244 SWAP2\n245 SUB\n246 SWAP1\n247 RETURN\n', 'truncLabel': '222 JUMPDEST\n223 PUSH1 0x40\n225 MLOAD\n226 DUP1\n227 DUP3\n228 ISZERO\n(click to expand +)', 'isExpanded': false},
{id: '1185', color: {border: '#26996f', background: '#2f7e5b', highlight: {border: '#26996f', background: '#28a16f'}}, size: 150, 'label': '353 JUMPDEST\n354 DUP2\n355 PUSH1 0x00\n357 DUP1\n358 CALLER\n359 PUSH20 0xffffffff(...)\n(click to expand +)', 'fullLabel': '353 JUMPDEST\n354 DUP2\n355 PUSH1 0x00\n357 DUP1\n358 CALLER\n359 PUSH20 0xffffffff(...)\n380 AND\n381 PUSH20 0xffffffff(...)\n402 AND\n403 DUP2\n404 MSTORE\n405 PUSH1 0x20\n407 ADD\n408 SWAP1\n409 DUP2\n410 MSTORE\n411 PUSH1 0x20\n413 ADD\n414 PUSH1 0x00\n416 SHA3\n417 PUSH1 0x00\n419 DUP3\n420 DUP3\n421 SLOAD\n422 SUB\n423 SWAP3\n424 POP\n425 POP\n426 DUP2\n427 SWAP1\n428 SSTORE\n429 POP\n430 DUP2\n431 PUSH1 0x00\n433 DUP1\n434 DUP6\n435 PUSH20 0xffffffff(...)\n456 AND\n457 PUSH20 0xffffffff(...)\n478 AND\n479 DUP2\n480 MSTORE\n481 PUSH1 0x20\n483 ADD\n484 SWAP1\n485 DUP2\n486 MSTORE\n487 PUSH1 0x20\n489 ADD\n490 PUSH1 0x00\n492 SHA3\n493 PUSH1 0x00\n495 DUP3\n496 DUP3\n497 SLOAD\n498 ADD\n499 SWAP3\n500 POP\n501 POP\n502 DUP2\n503 SWAP1\n504 SSTORE\n505 POP\n506 PUSH1 0x00\n508 SWAP1\n509 POP\n510 JUMPDEST\n511 SWAP3\n512 SWAP2\n513 POP\n514 POP\n515 JUMP\n', 'truncLabel': '353 JUMPDEST\n354 DUP2\n355 PUSH1 0x00\n357 DUP1\n358 CALLER\n359 PUSH20 0xffffffff(...)\n(click to expand +)', 'isExpanded': false},
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</script>
</head>
<body>
<p>Mythril / LASER Symbolic VM</p>
<p><div id="mynetwork"></div><br/></p>
<script type="text/javascript">
var container = document.getElementById('mynetwork');
var nodesSet = new vis.DataSet(nodes);
var edgesSet = new vis.DataSet(edges);
var data = {'nodes': nodesSet, 'edges': edgesSet}
var gph = new vis.Network(container, data, options);
gph.on("click", function (params) {
// parse node id
var nodeID = params['nodes']['0'];
if (nodeID) {
var clickedNode = nodesSet.get(nodeID);
if(clickedNode.isExpanded) {
clickedNode.label = clickedNode.truncLabel;
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clickedNode.label = clickedNode.fullLabel;
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File diff suppressed because one or more lines are too long

@ -1,14 +1 @@
{
"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>"
}
]
}
{"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}

@ -1,134 +0,0 @@
<html>
<head>
<style type="text/css">
#mynetwork {
background-color: #232625;
}
body {
background-color: #232625;
color: #ffffff;
font-size: 10px;
}
</style>
<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
<script>
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autoResize: true,
height: '100%',
width: '100%',
manipulation: false,
height: '90%',
layout: {
randomSeed: undefined,
improvedLayout:true,
hierarchical: {
enabled:true,
levelSeparation: 450,
nodeSpacing: 200,
treeSpacing: 100,
blockShifting: true,
edgeMinimization: true,
parentCentralization: false,
direction: 'LR', // UD, DU, LR, RL
sortMethod: 'directed' // hubsize, directed
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},
nodes:{
borderWidth: 1,
borderWidthSelected: 2,
chosen: true,
shape: 'box',
font: {
align: 'left',
color: '#FFFFFF',
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edges:{
font: {
color: '#ffffff',
size: 12, // px
face: 'arial',
background: 'none',
strokeWidth: 0, // px
strokeColor: '#ffffff',
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vadjust: 0,
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<p>Mythril / LASER Symbolic VM</p>
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@ -1,17 +0,0 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Ether send",
"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",
"type": "Warning",
"address": 142,
"debug": "<DEBUG-DATA>",
"filename": "<TESTDATA>/inputs/multi_contracts.sol",
"lineno": 14,
"code": "msg.sender.transfer(2 ether)"
}
]
}

@ -1,18 +0,0 @@
# Analysis results for <TESTDATA>/inputs/multi_contracts.sol
## Ether send
- Type: Warning
- Contract: Transfer2
- Function name: `_function_0x8a4068dd`
- PC address: 142
### Description
In the function `_function_0x8a4068dd` a non-zero amount of Ether is sent to msg.sender.
It seems that this function can be called without restrictions.
In *<TESTDATA>/inputs/multi_contracts.sol:14*
```
msg.sender.transfer(2 ether)
```

File diff suppressed because one or more lines are too long

@ -1,14 +1 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Ether send",
"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",
"type": "Warning",
"address": 142,
"debug": "<DEBUG-DATA>"
}
]
}
{"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}

@ -1,14 +0,0 @@
==== Ether send ====
Type: Warning
Contract: Transfer2
Function name: _function_0x8a4068dd
PC address: 142
In the function `_function_0x8a4068dd` a non-zero amount of Ether is sent to msg.sender.
It seems that this function can be called without restrictions.
--------------------
In file: <TESTDATA>/inputs/multi_contracts.sol:14
msg.sender.transfer(2 ether)
--------------------

File diff suppressed because one or more lines are too long

File diff suppressed because one or more lines are too long

@ -1,14 +1 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Use of tx.origin",
"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)",
"type": "Warning",
"address": 317,
"debug": "<DEBUG-DATA>"
}
]
}
{"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}

@ -1,39 +0,0 @@
{
"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>",
"filename": "<TESTDATA>/inputs/overflow.sol",
"lineno": 12,
"code": "balances[msg.sender] -= _value"
},
{
"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>",
"filename": "<TESTDATA>/inputs/overflow.sol",
"lineno": 13,
"code": "balances[_to] += _value"
},
{
"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>",
"filename": "<TESTDATA>/inputs/overflow.sol",
"lineno": 11,
"code": "balances[msg.sender] - _value"
}
]
}

@ -1,52 +0,0 @@
# Analysis results for <TESTDATA>/inputs/overflow.sol
## Integer Underflow
- Type: Warning
- Contract: Over
- Function name: `sendeth(address,uint256)`
- PC address: 649
### Description
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
In *<TESTDATA>/inputs/overflow.sol:12*
```
balances[msg.sender] -= _value
```
## Integer Overflow
- Type: Warning
- Contract: Over
- Function name: `sendeth(address,uint256)`
- PC address: 725
### Description
A possible integer overflow exists in the function `sendeth(address,uint256)`.
The addition or multiplication may result in a value higher than the maximum representable integer.
In *<TESTDATA>/inputs/overflow.sol:13*
```
balances[_to] += _value
```
## Integer Underflow
- Type: Warning
- Contract: Over
- Function name: `sendeth(address,uint256)`
- PC address: 567
### Description
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
In *<TESTDATA>/inputs/overflow.sol:11*
```
balances[msg.sender] - _value
```

File diff suppressed because one or more lines are too long

@ -1,30 +1 @@
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"success": true,
"error": null,
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"title": "Integer Underflow",
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"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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}
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@ -1,42 +0,0 @@
==== Integer Underflow ====
Type: Warning
Contract: Over
Function name: sendeth(address,uint256)
PC address: 649
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
--------------------
In file: <TESTDATA>/inputs/overflow.sol:12
balances[msg.sender] -= _value
--------------------
==== Integer Overflow ====
Type: Warning
Contract: Over
Function name: sendeth(address,uint256)
PC address: 725
A possible integer overflow exists in the function `sendeth(address,uint256)`.
The addition or multiplication may result in a value higher than the maximum representable integer.
--------------------
In file: <TESTDATA>/inputs/overflow.sol:13
balances[_to] += _value
--------------------
==== Integer Underflow ====
Type: Warning
Contract: Over
Function name: sendeth(address,uint256)
PC address: 567
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
--------------------
In file: <TESTDATA>/inputs/overflow.sol:11
balances[msg.sender] - _value
--------------------

@ -1,146 +0,0 @@
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<body>
<p>Mythril / LASER Symbolic VM</p>
<p><div id="mynetwork"></div><br/></p>
<script type="text/javascript">
var container = document.getElementById('mynetwork');
var nodesSet = new vis.DataSet(nodes);
var edgesSet = new vis.DataSet(edges);
var data = {'nodes': nodesSet, 'edges': edgesSet}
var gph = new vis.Network(container, data, options);
gph.on("click", function (params) {
// parse node id
var nodeID = params['nodes']['0'];
if (nodeID) {
var clickedNode = nodesSet.get(nodeID);
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clickedNode.label = clickedNode.truncLabel;
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File diff suppressed because one or more lines are too long

@ -1,30 +1 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Message call to external contract",
"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",
"type": "Informational",
"address": 196,
"debug": "<DEBUG-DATA>"
},
{
"title": "Message call to external contract",
"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",
"type": "Informational",
"address": 285,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xe3bea282",
"type": "Informational",
"address": 285,
"debug": "<DEBUG-DATA>"
}
]
}
{"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}

@ -27,7 +27,7 @@ This contract executes a message call to to another contract. Make sure that the
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe3bea282`
- PC address: 285
- PC address: 290
### Description

@ -18,7 +18,7 @@ This contract executes a message call to to another contract. Make sure that the
Type: Informational
Contract: Unknown
Function name: _function_0xe3bea282
PC address: 285
PC address: 290
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------

@ -0,0 +1,166 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Ether send",
"description": "In the function `_function_0x4229616d` a non-zero amount of Ether is sent to an address taken from storage slot 5.\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\n\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.",
"function": "_function_0x4229616d",
"type": "Warning",
"address": 1599,
"debug": "<DEBUG-DATA>"
},
{
"title": "Ether send",
"description": "In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\n\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.",
"function": "_function_0xb4022950",
"type": "Warning",
"address": 1940,
"debug": "<DEBUG-DATA>"
},
{
"title": "Ether send",
"description": "In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\n\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.\nThere is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.",
"function": "_function_0xb4022950",
"type": "Warning",
"address": 2582,
"debug": "<DEBUG-DATA>"
},
{
"title": "Exception state",
"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_0x57d4021b",
"type": "Informational",
"address": 1653,
"debug": "<DEBUG-DATA>"
},
{
"title": "Exception state",
"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_0x9dbc4f9b",
"type": "Informational",
"address": 2085,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "fallback",
"type": "Informational",
"address": 3111,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "fallback",
"type": "Informational",
"address": 3140,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "fallback",
"type": "Informational",
"address": 2950,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "fallback",
"type": "Informational",
"address": 1268,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x09dfdc71",
"type": "Informational",
"address": 310,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x09dfdc71",
"type": "Informational",
"address": 1316,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x253459e3",
"type": "Informational",
"address": 1375,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x4229616d",
"type": "Informational",
"address": 1511,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x57d4021b",
"type": "Informational",
"address": 1679,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x6fbaaa1e",
"type": "Informational",
"address": 618,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x8a5fb3ca",
"type": "Informational",
"address": 805,
"debug": "<DEBUG-DATA>"
},
{
"title": "Invariant branch condition",
"description": "Found a conditional jump which always follows the same branch",
"function": "_function_0x9dbc4f9b",
"type": "Informational",
"address": 2187,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0x4229616d",
"type": "Informational",
"address": 1599,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xb4022950",
"type": "Informational",
"address": 1940,
"debug": "<DEBUG-DATA>"
},
{
"title": "Unchecked CALL return value",
"description": "The return value of an external call is not checked. Note that execution continue even if the called contract throws.",
"function": "_function_0xb4022950",
"type": "Informational",
"address": 2582,
"debug": "<DEBUG-DATA>"
}
]
}

@ -0,0 +1,238 @@
# Analysis results for test-filename.sol
## Ether send
- Type: Warning
- Contract: Unknown
- Function name: `_function_0x4229616d`
- PC address: 1599
### Description
In the function `_function_0x4229616d` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
## Ether send
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xb4022950`
- PC address: 1940
### Description
In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
## Ether send
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xb4022950`
- PC address: 2582
### Description
In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
## Exception state
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x57d4021b`
- PC address: 1653
### 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.
## Exception state
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x9dbc4f9b`
- PC address: 2085
### 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.
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `fallback`
- PC address: 3111
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `fallback`
- PC address: 3140
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `fallback`
- PC address: 2950
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `fallback`
- PC address: 1268
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x09dfdc71`
- PC address: 310
### Description
Found a conditional jump which always follows the same branch, value: False
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x09dfdc71`
- PC address: 1316
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x253459e3`
- PC address: 1375
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x4229616d`
- PC address: 1511
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x57d4021b`
- PC address: 1679
### Description
Found a conditional jump which always follows the same branch, value: True
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x6fbaaa1e`
- PC address: 618
### Description
Found a conditional jump which always follows the same branch, value: False
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x8a5fb3ca`
- PC address: 805
### Description
Found a conditional jump which always follows the same branch, value: False
## Tautology
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x9dbc4f9b`
- PC address: 2187
### Description
Found a conditional jump which always follows the same branch, value: True
## Unchecked CALL return value
- Type: Informational
- Contract: Unknown
- Function name: `_function_0x4229616d`
- PC address: 1599
### Description
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Unchecked CALL return value
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xb4022950`
- PC address: 1940
### Description
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
## Unchecked CALL return value
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xb4022950`
- PC address: 2582
### Description
The return value of an external call is not checked. Note that execution continue even if the called contract throws.

@ -0,0 +1,177 @@
==== Ether send ====
Type: Warning
Contract: Unknown
Function name: _function_0x4229616d
PC address: 1599
In the function `_function_0x4229616d` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
--------------------
==== Ether send ====
Type: Warning
Contract: Unknown
Function name: _function_0xb4022950
PC address: 1940
In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
--------------------
==== Ether send ====
Type: Warning
Contract: Unknown
Function name: _function_0xb4022950
PC address: 2582
In the function `_function_0xb4022950` a non-zero amount of Ether is sent to an address taken from storage slot 5.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 5. This storage slot can be written to by calling the function `_function_0x67f809e9`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
--------------------
==== Exception state ====
Type: Informational
Contract: Unknown
Function name: _function_0x57d4021b
PC address: 1653
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 ====
Type: Informational
Contract: Unknown
Function name: _function_0x9dbc4f9b
PC address: 2085
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.
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: fallback
PC address: 3111
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: fallback
PC address: 3140
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: fallback
PC address: 2950
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: fallback
PC address: 1268
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x09dfdc71
PC address: 310
Found a conditional jump which always follows the same branch, value: False
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x09dfdc71
PC address: 1316
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x253459e3
PC address: 1375
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x4229616d
PC address: 1511
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x57d4021b
PC address: 1679
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x6fbaaa1e
PC address: 618
Found a conditional jump which always follows the same branch, value: False
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x8a5fb3ca
PC address: 805
Found a conditional jump which always follows the same branch, value: False
--------------------
==== Tautology ====
Type: Informational
Contract: Unknown
Function name: _function_0x9dbc4f9b
PC address: 2187
Found a conditional jump which always follows the same branch, value: True
--------------------
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0x4229616d
PC address: 1599
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0xb4022950
PC address: 1940
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------
==== Unchecked CALL return value ====
Type: Informational
Contract: Unknown
Function name: _function_0xb4022950
PC address: 2582
The return value of an external call is not checked. Note that execution continue even if the called contract throws.
--------------------

@ -1,17 +0,0 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Unchecked SUICIDE",
"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",
"type": "Warning",
"address": 146,
"debug": "<DEBUG-DATA>",
"filename": "<TESTDATA>/inputs/suicide.sol",
"lineno": 4,
"code": "selfdestruct(addr)"
}
]
}

@ -1,19 +0,0 @@
# Analysis results for <TESTDATA>/inputs/suicide.sol
## Unchecked SUICIDE
- Type: Warning
- Contract: Suicide
- Function name: `_function_0xcbf0b0c0`
- PC address: 146
### Description
The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.
It seems that this function can be called without restrictions.
In *<TESTDATA>/inputs/suicide.sol:4*
```
selfdestruct(addr)
```

@ -18,8 +18,8 @@
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{
"success": true,
"error": null,
"issues": [
{
"title": "Unchecked SUICIDE",
"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",
"type": "Warning",
"address": 146,
"debug": "<DEBUG-DATA>"
}
]
}
{"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}

@ -1,15 +0,0 @@
==== Unchecked SUICIDE ====
Type: Warning
Contract: Suicide
Function name: _function_0xcbf0b0c0
PC address: 146
The function `_function_0xcbf0b0c0` executes the SUICIDE instruction. The remaining Ether is sent to an address provided as a function argument.
It seems that this function can be called without restrictions.
--------------------
In file: <TESTDATA>/inputs/suicide.sol:4
selfdestruct(addr)
--------------------

@ -1,168 +0,0 @@
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<p>Mythril / LASER Symbolic VM</p>
<p><div id="mynetwork"></div><br/></p>
<script type="text/javascript">
var container = document.getElementById('mynetwork');
var nodesSet = new vis.DataSet(nodes);
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@ -1,39 +0,0 @@
{
"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>",
"filename": "<TESTDATA>/inputs/underflow.sol",
"lineno": 12,
"code": "balances[msg.sender] -= _value"
},
{
"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>",
"filename": "<TESTDATA>/inputs/underflow.sol",
"lineno": 13,
"code": "balances[_to] += _value"
},
{
"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>",
"filename": "<TESTDATA>/inputs/underflow.sol",
"lineno": 11,
"code": "balances[msg.sender] - _value"
}
]
}

@ -1,52 +0,0 @@
# Analysis results for <TESTDATA>/inputs/underflow.sol
## Integer Underflow
- Type: Warning
- Contract: Under
- Function name: `sendeth(address,uint256)`
- PC address: 649
### Description
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
In *<TESTDATA>/inputs/underflow.sol:12*
```
balances[msg.sender] -= _value
```
## Integer Overflow
- Type: Warning
- Contract: Under
- Function name: `sendeth(address,uint256)`
- PC address: 725
### Description
A possible integer overflow exists in the function `sendeth(address,uint256)`.
The addition or multiplication may result in a value higher than the maximum representable integer.
In *<TESTDATA>/inputs/underflow.sol:13*
```
balances[_to] += _value
```
## Integer Underflow
- Type: Warning
- Contract: Under
- Function name: `sendeth(address,uint256)`
- PC address: 567
### Description
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
In *<TESTDATA>/inputs/underflow.sol:11*
```
balances[msg.sender] - _value
```

File diff suppressed because one or more lines are too long

@ -1,30 +1 @@
{
"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>"
}
]
}
{"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}

@ -1,42 +0,0 @@
==== Integer Underflow ====
Type: Warning
Contract: Under
Function name: sendeth(address,uint256)
PC address: 649
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
--------------------
In file: <TESTDATA>/inputs/underflow.sol:12
balances[msg.sender] -= _value
--------------------
==== Integer Overflow ====
Type: Warning
Contract: Under
Function name: sendeth(address,uint256)
PC address: 725
A possible integer overflow exists in the function `sendeth(address,uint256)`.
The addition or multiplication may result in a value higher than the maximum representable integer.
--------------------
In file: <TESTDATA>/inputs/underflow.sol:13
balances[_to] += _value
--------------------
==== Integer Underflow ====
Type: Warning
Contract: Under
Function name: sendeth(address,uint256)
PC address: 567
A possible integer underflow exists in the function `sendeth(address,uint256)`.
The subtraction may result in a value < 0.
--------------------
In file: <TESTDATA>/inputs/underflow.sol:11
balances[msg.sender] - _value
--------------------

@ -0,0 +1,46 @@
{
"success": true,
"error": null,
"issues": [
{
"title": "Dependence on predictable environment variable",
"description": "In the function `_function_0xe9874106` the following predictable state variables are used to determine Ether recipient:\n- block.coinbase\n",
"function": "_function_0xe9874106",
"type": "Warning",
"address": 1285,
"debug": "<DEBUG-DATA>"
},
{
"title": "Ether send",
"description": "In the function `_function_0xe9874106` a non-zero amount of Ether is sent to an address taken from storage slot 0.\nThere is a check on storage index 0. This storage slot can be written to by calling the function `fallback`.\n\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.\nThere is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.",
"function": "_function_0xe9874106",
"type": "Warning",
"address": 1285,
"debug": "<DEBUG-DATA>"
},
{
"title": "Exception state",
"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": "fallback",
"type": "Informational",
"address": 356,
"debug": "<DEBUG-DATA>"
},
{
"title": "Exception state",
"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_0xe9874106",
"type": "Informational",
"address": 146,
"debug": "<DEBUG-DATA>"
},
{
"title": "Transaction order dependence",
"description": "A possible transaction order independence vulnerability exists in function _function_0xe9874106. The value or direction of the call statement is determined from a tainted storage location",
"function": "_function_0xe9874106",
"type": "Warning",
"address": 1285,
"debug": "<DEBUG-DATA>"
}
]
}

@ -0,0 +1,62 @@
# Analysis results for test-filename.sol
## Dependence on predictable environment variable
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe9874106`
- PC address: 1285
### Description
In the function `_function_0xe9874106` the following predictable state variables are used to determine Ether recipient:
- block.coinbase
## Ether send
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe9874106`
- PC address: 1285
### Description
In the function `_function_0xe9874106` a non-zero amount of Ether is sent to an address taken from storage slot 0.
There is a check on storage index 0. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
## Exception state
- Type: Informational
- Contract: Unknown
- Function name: `fallback`
- PC address: 356
### 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.
## Exception state
- Type: Informational
- Contract: Unknown
- Function name: `_function_0xe9874106`
- PC address: 146
### 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.
## Transaction order dependence
- Type: Warning
- Contract: Unknown
- Function name: `_function_0xe9874106`
- PC address: 1285
### Description
A possible transaction order independence vulnerability exists in function _function_0xe9874106. The value or direction of the call statement is determined from a tainted storage location

@ -0,0 +1,46 @@
==== Dependence on predictable environment variable ====
Type: Warning
Contract: Unknown
Function name: _function_0xe9874106
PC address: 1285
In the function `_function_0xe9874106` the following predictable state variables are used to determine Ether recipient:
- block.coinbase
--------------------
==== Ether send ====
Type: Warning
Contract: Unknown
Function name: _function_0xe9874106
PC address: 1285
In the function `_function_0xe9874106` a non-zero amount of Ether is sent to an address taken from storage slot 0.
There is a check on storage index 0. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
There is a check on storage index 1. This storage slot can be written to by calling the function `fallback`.
--------------------
==== Exception state ====
Type: Informational
Contract: Unknown
Function name: fallback
PC address: 356
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 ====
Type: Informational
Contract: Unknown
Function name: _function_0xe9874106
PC address: 146
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.
--------------------
==== Transaction order dependence ====
Type: Warning
Contract: Unknown
Function name: _function_0xe9874106
PC address: 1285
A possible transaction order independence vulnerability exists in function _function_0xe9874106. The value or direction of the call statement is determined from a tainted storage location
--------------------
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