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What is Solidity Fuzzing Boilerplate?

The Solidity Fuzzing Boilerplate acts as a crucial starting point, aimed at streamlining the fuzzing procedure for diverse aspects of Solidity projects, especially libraries. Developers can write their tests once and seamlessly run them with the fuzzing tools provided by both Echidna and Foundry. When different Solidity versions are needed for certain components, these can be easily deployed within a Ganache instance using Etheno. For generating complex fuzzing inputs or performing differential fuzzing by comparing results with non-EVM executables, HEVM's FFI cheat code is a highly effective tool. Furthermore, results from fuzzing experiments can be shared without worrying about licensing implications by adjusting the shell script to pull specific files. If your Solidity contracts will not utilize shell commands, it is wise to disable FFI, as it can slow down processes and should mainly be seen as a workaround. This feature is particularly advantageous when testing intricate implementations that are hard to reproduce in Solidity but can be found in other programming languages. It is crucial to carefully examine the commands executed before initiating tests in projects with FFI enabled, to ensure a thorough understanding of the actions being performed. Maintaining clarity in your testing methodology is vital for upholding the integrity and effectiveness of your fuzzing initiatives, and it ultimately enhances the overall reliability of the project.

What is LibFuzzer?

LibFuzzer is an in-process engine that employs coverage-guided techniques for evolutionary fuzzing. By integrating directly with the library being tested, it injects generated fuzzed inputs into a specific entry point or target function, allowing it to track executed code paths while modifying the input data to improve code coverage. The coverage information is gathered through LLVM’s SanitizerCoverage instrumentation, which provides users with comprehensive insights into the testing process. Importantly, LibFuzzer is continuously maintained, with critical bugs being resolved as they are identified. To use LibFuzzer with a particular library, the first step is to develop a fuzz target; this function takes a byte array and interacts meaningfully with the API under scrutiny. Notably, this fuzz target functions independently of LibFuzzer, making it compatible with other fuzzing tools like AFL or Radamsa, which adds flexibility to testing approaches. Moreover, combining various fuzzing engines can yield more thorough testing results and deeper understanding of the library's security flaws, ultimately enhancing the overall quality of the code. The ongoing evolution of fuzzing techniques ensures that developers are better equipped to identify and address potential vulnerabilities effectively.

Media

Media

Integrations Supported

Echidna Finance
Etheno
Foundry
Solidity

Integrations Supported

Atheris
C
C++
ClusterFuzz
Fuzzbuzz
Google ClusterFuzz
Jazzer

API Availability

API Availability

Has API

Pricing Information

Free
Free Version

Pricing Information

Free
Free Version

Supported Platforms

Windows
Mac
Linux

Supported Platforms

Windows
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

patrickd

Company Website

github.com/patrickd-/solidity-fuzzing-boilerplate

Company Facts

Organization Name

LLVM Project

Date Founded

2003

Company Website

llvm.org/docs/LibFuzzer.html

Categories and Features

Fuzz Testing

Not specified

SaaS Boilerplates

Not specified

Categories and Features

Fuzz Testing

Not specified

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