truffle-security

MythX Security Analysis Plugin for Truffle Framework

This plugin adds automated smart contract security analysis to the Truffle framework. It is based on MythX, the security analysis API for Ethereum smart contracts. The plugin is compatible with Truffle 5.0 or higher.

Installing the Plugin

To install the latest stable version from NPM:

$ npm install -g truffle-security

If you're feeling adventurous, you can also install the from the master branch:

$ npm install -g git+https://[e-mail]/ConsenSys/truffle-security.git

Configuration

Currently, the plugin must be activated on a per-project basis. Add the following to truffle.js in the root directory of your Truffle project:

module.exports = {
    plugins: [ "truffle-security" ]
};

By default, the plugin is configured with a MythX trial account that allows a limited number of requests. You can set up a free account on the MythX website to get full access.

After setting up an account, set the following enviromment variables to your ETH address and password (add this to your .bashrc or .bash_profile for added convenience):

export MYTHX_ETH_ADDRESS=0x1234567891235678900000000000000000000000
export MYTHX_PASSWORD='Put your password in here!'

Running Security Analyses

Once the plugin is installed the truffle run verify becomes available. You can either analyze a specific contract by running truffle run verify <contract-name> or the entire project leaving out the contract name.

Your project must compile successfully for the security analysis to work. Note that the verify command invokes truffle compile automatically if the build files are not up to date.

Here is the output of truffle verify for an example from the DevCon4 MythX Workshop:

$ truffle run verify

/Projects/mythx-playground/exercise2/contracts/Tokensale.sol
   1:0   warning  A floating pragma is set                SWC-103
  16:29  warning  The binary multiplication can overflow  SWC-101
  18:8   warning  The binary addition can overflow        SWC-101

✖ 4 problems (0 errors, 4 warnings)

Here is an example of analyzing a single contract and using the table report style:

$ truffle run verify --style table

/Projects/mythx-playground/exercise2/contracts/Tokensale.sol

║ Line     │ Column   │ Type     │ Message                                                │ Rule ID              ║
╟──────────┼──────────┼──────────┼────────────────────────────────────────────────────────┼──────────────────────╢
║ 1        │ 0        │ warning  │ A floating pragma is set.                              │ SWC-103              ║
║ 16       │ 29       │ warning  │ The binary multiplication can overflow.                │ SWC-101              ║
║ 18       │ 8        │ warning  │ The binary addition can overflow.                      │ SWC-101              ║

╔════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
║ 0 Errors                                                                                                       ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ 4 Warnings                                                                                                     ║
╚════════════════════════════════════════════════════════════════════════════════════════════════════════════════╝

Advanced Options

Run truffle run verify --help to show advanced configuration options.

$ truffle run verify --help

Usage: truffle run verify [options] [*contract-name1* [*contract-name2*] ...]

Runs MythX analyses on given Solidity contracts. If no contracts are
given, all are analyzed.

Options:
  --debug    Provide additional debug output. Use --debug=2 for more
             verbose output
  --uuid *UUID*
             Print in YAML results from a prior run having *UUID*
             Note: this is still a bit raw and will be improved.
  --mode { quick | full }
             Perform quick or in-depth (full) analysis.
  --style { stylish | unix | json | table | tap | ... },
             Output report in the given es-lint style style.
             See https://eslint.org/docs/user-guide/formatters/ for a full list.
  --timeout *seconds* ,
             Limit MythX analyses time to *s* seconds.
             The default is 120 seconds (two minutes).
  --limit *N*
             Have no more than *N* analysis requests pending at a time.
             As results come back, remaining contracts are submitted.
             The default is 10 contracts, the maximum value, but you can
             set this lower.
  --version  Show package and MythX version information.