mirror of https://github.com/ConsenSys/mythril
blockchainethereumsmart-contractssoliditysecurityprogram-analysissecurity-analysissymbolic-execution
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
345 lines
9.5 KiB
345 lines
9.5 KiB
from setuptools import setup, find_packages
|
|
from setuptools.command.install import install
|
|
import os
|
|
|
|
# Package version (vX.Y.Z). It must match git tag being used for CircleCI
|
|
# deployment; otherwise the build will failed.
|
|
|
|
VERSION = "v0.17.12"
|
|
|
|
class VerifyVersionCommand(install):
|
|
"""Custom command to verify that the git tag matches our version"""
|
|
description = 'verify that the git tag matches our version'
|
|
|
|
def run(self):
|
|
tag = os.getenv('CIRCLE_TAG')
|
|
|
|
if (tag != VERSION):
|
|
info = "Git tag: {0} does not match the version of this app: {1}".format(tag, VERSION)
|
|
sys.exit(info)
|
|
|
|
long_description = '''
|
|
Mythril is a security analysis tool for Ethereum smart contracts. It
|
|
uses concolic analysis to detect various types of issues. Use it to
|
|
analyze source code or as a nmap-style black-box blockchain scanner (an
|
|
"ethermap" if you will).
|
|
|
|
Installation and setup
|
|
----------------------
|
|
|
|
Install from Pypi:
|
|
|
|
.. code:: bash
|
|
|
|
$ pip install mythril
|
|
|
|
Or, clone the GitHub repo to install the newest master branch:
|
|
|
|
.. code:: bash
|
|
|
|
$ git clone https://github.com/b-mueller/mythril/
|
|
$ cd mythril
|
|
$ python setup.py install
|
|
|
|
Note that Mythril requires Python 3.5 to work.
|
|
|
|
Function signatures
|
|
~~~~~~~~~~~~~~~~~~~
|
|
|
|
Whenever you disassemble or analyze binary code, Mythril will try to
|
|
resolve function names using its local signature database. The database
|
|
must be provided at ``~/.mythril/signatures.json``. You can start out
|
|
with the `default file <signatures.json>`__ as follows:
|
|
|
|
::
|
|
|
|
$ cd ~/.mythril
|
|
$ wget https://raw.githubusercontent.com/b-mueller/mythril/master/signatures.json
|
|
|
|
When you analyze Solidity code, new function signatures are added to the
|
|
database automatically.
|
|
|
|
Security analysis
|
|
-----------------
|
|
|
|
Run ``myth -x`` with one of the input options described below to run the
|
|
analysis. This will run the Python modules in the
|
|
`/analysis/modules <https://github.com/b-mueller/mythril/tree/master/mythril/analysis/modules>`__
|
|
directory.
|
|
|
|
Mythril detects a range of `security issues <security_checks.md>`__,
|
|
including integer underflows, owner-overwrite-to-Ether-withdrawal, and
|
|
others. However, the analysis will not detect business logic issues and
|
|
is not equivalent to formal verification.
|
|
|
|
Analyzing Solidity code
|
|
~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
In order to work with Solidity source code files, the `solc command line
|
|
compiler <http://solidity.readthedocs.io/en/develop/using-the-compiler.html>`__
|
|
needs to be installed and in path. You can then provide the source
|
|
file(s) as positional arguments, e.g.:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -x myContract.sol
|
|
|
|
Alternatively, compile the code on `Remix <http://remix.ethereum.org>`__
|
|
and pass the runtime binary code to Mythril:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -x -c "0x5060(...)"
|
|
|
|
If you have multiple interdependent contracts, pass them to Mythril as
|
|
separate input files. Mythril will map the first contract to address
|
|
"0x0000(..)", the second one to "0x1111(...)", and so forth (make sure
|
|
that contract addresses are set accordingly in the source). The contract
|
|
passed in the first argument will be executed as the "main" contract.
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -x myContract.sol myLibrary.sol
|
|
|
|
Working with on-chain contracts
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
To analyze contracts on the blockchain you need an Ethereum node. By
|
|
default, Mythril will query a local node via RPC. Alternatively, you can
|
|
use `INFURA <https://infura.io>`__:
|
|
|
|
::
|
|
|
|
$ myth --infura-mainnet -x -a 0x5c436ff914c458983414019195e0f4ecbef9e6dd
|
|
|
|
If you are planning to do batch operations or use the contract search
|
|
features, running a
|
|
`go-ethereum <https://github.com/ethereum/go-ethereum>`__ node is
|
|
recommended. Start your local node as follows:
|
|
|
|
.. code:: bash
|
|
|
|
$ geth --rpc --rpcapi eth,debug --syncmode fast
|
|
|
|
Specify the target contract with the ``-a`` option:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -x -a 0x5c436ff914c458983414019195e0f4ecbef9e6dd -v1
|
|
|
|
Adding the ``-l`` flag will cause Mythril to automatically retrieve
|
|
dependencies, such as library contracts:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -x -a 0xEbFD99838cb0c132016B9E117563CB41f2B02264 -l -v1
|
|
|
|
Control flow graph
|
|
------------------
|
|
|
|
The ``-g FILENAME`` option generates an `interactive jsViz
|
|
graph <http://htmlpreview.github.io/?https://github.com/b-mueller/mythril/blob/master/static/mythril.html>`__:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -g ./graph.html -a 0xEbFD99838cb0c132016B9E117563CB41f2B02264 -l
|
|
|
|
.. figure:: https://raw.githubusercontent.com/b-mueller/mythril/master/static/callgraph7.png
|
|
:alt: Call graph
|
|
|
|
callgraph
|
|
|
|
[STRIKEOUT:The "bounce" effect, while awesome (and thus enabled by
|
|
default), sometimes messes up the graph layout.] Try adding the
|
|
``--enable-physics`` flag for a very entertaining "bounce" effect that
|
|
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.
|
|
|
|
.. code:: bash
|
|
|
|
$ myth --init-db
|
|
Starting synchronization from latest block: 4323706
|
|
Processing block 4323000, 3 individual contracts in database
|
|
(...)
|
|
|
|
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.
|
|
|
|
Searching from the command line
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
The search feature allows you to find contract instances that contain
|
|
specific function calls and opcode sequences. It supports simple boolean
|
|
expressions, such as:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth --search "func#changeMultisig(address)#"
|
|
$ myth --search "code#PUSH1 0x50,POP#"
|
|
$ myth --search "func#changeMultisig(address)# and code#PUSH1 0x50#"
|
|
|
|
Reading contract storage
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
You can read the contents of storage slots from a deployed contract as
|
|
follows.
|
|
|
|
.. code:: bash
|
|
|
|
./myth --storage 0 -a "0x76799f77587738bfeef09452df215b63d2cfb08a"
|
|
0x0000000000000000000000000000000000000000000000000000000000000003
|
|
|
|
Utilities
|
|
---------
|
|
|
|
Disassembler
|
|
~~~~~~~~~~~~
|
|
|
|
Use the ``-d`` flag to disassemble code. The disassembler accepts a
|
|
bytecode string or a contract address as its input.
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -d -c "0x6060"
|
|
0 PUSH1 0x60
|
|
|
|
Specifying an address via ``-a ADDRESS`` will download the contract code
|
|
from your node.
|
|
|
|
.. code:: bash
|
|
|
|
$ myth -d -a "0x2a0c0dbecc7e4d658f48e01e3fa353f44050c208"
|
|
0 PUSH1 0x60
|
|
2 PUSH1 0x40
|
|
4 MSTORE
|
|
(...)
|
|
1135 - FUNCTION safeAdd(uint256,uint256) -
|
|
1136 CALLVALUE
|
|
1137 ISZERO
|
|
|
|
Finding cross-references
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
It is often useful to find other contracts referenced by a particular
|
|
contract. E.g.:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth --search "code#DELEGATECALL#"
|
|
Matched contract with code hash 07459966443977122e639cbf7804c446
|
|
Address: 0x76799f77587738bfeef09452df215b63d2cfb08a, balance: 1000000000000000
|
|
$ myth --xrefs -a 0x76799f77587738bfeef09452df215b63d2cfb08a
|
|
5b9e8728e316bbeb692d22daaab74f6cbf2c4691
|
|
|
|
Calculating function hashes
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
To print the Keccak hash for a given function signature:
|
|
|
|
.. code:: bash
|
|
|
|
$ myth --hash "setOwner(address)"
|
|
0x13af4035
|
|
|
|
Credit
|
|
------
|
|
|
|
- JSON RPC library is adapted from
|
|
`ethjsonrpc <https://github.com/ConsenSys/ethjsonrpc>`__ (it doesn't
|
|
seem to be maintained anymore, and I needed to make some changes to
|
|
it).
|
|
|
|
- The signature data in ``signatures.json`` was initially obtained from
|
|
the `Ethereum Function Signature
|
|
Database <https://www.4byte.directory>`__.
|
|
'''
|
|
|
|
|
|
setup(
|
|
name='mythril',
|
|
|
|
version=VERSION[1:],
|
|
|
|
description='Security analysis tool for Ethereum smart contracts',
|
|
long_description=long_description,
|
|
|
|
url='https://github.com/b-mueller/mythril',
|
|
|
|
author='Bernhard Mueller',
|
|
author_email='bernhard.mueller11@gmail.com',
|
|
|
|
license='MIT',
|
|
|
|
classifiers=[
|
|
'Development Status :: 3 - Alpha',
|
|
|
|
'Intended Audience :: Science/Research',
|
|
'Topic :: Software Development :: Disassemblers',
|
|
|
|
'License :: OSI Approved :: MIT License',
|
|
|
|
'Programming Language :: Python :: 2',
|
|
'Programming Language :: Python :: 2.7',
|
|
'Programming Language :: Python :: 3',
|
|
'Programming Language :: Python :: 3.3',
|
|
'Programming Language :: Python :: 3.4',
|
|
'Programming Language :: Python :: 3.5',
|
|
],
|
|
|
|
keywords='hacking disassembler security ethereum',
|
|
|
|
packages=find_packages(exclude=['contrib', 'docs', 'tests']),
|
|
|
|
install_requires=[
|
|
'ethereum>=2.3.0',
|
|
'ZODB>=5.3.0',
|
|
'z3-solver>=4.5',
|
|
'laser-ethereum>=0.17.12',
|
|
'requests',
|
|
'BTrees',
|
|
'py-solc',
|
|
'plyvel',
|
|
'pytest',
|
|
'eth_abi>=1.0.0',
|
|
'eth-utils>=1.0.1',
|
|
'eth-account>=0.1.0a2',
|
|
'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',
|
|
'coverage',
|
|
'jinja2',
|
|
'rlp<1.0.0'
|
|
],
|
|
|
|
python_requires='>=3.5',
|
|
|
|
extras_require={
|
|
},
|
|
|
|
package_data={
|
|
'mythril.analysis': ['templates/*']
|
|
},
|
|
|
|
include_package_data=True,
|
|
|
|
scripts=['myth'],
|
|
|
|
cmdclass = {
|
|
'verify': VerifyVersionCommand,
|
|
}
|
|
)
|
|
|