All our latest Blogpost and News about Blockchain security!
A Journey Into Fuzzing WebAssembly Virtual Machines [BlackHat USA 2022] Abstract Since the MVP release in 2017, WebAssembly evolve gradually, bringing new adepts and new VM implementations over time. It’s now possible to run WebAssembly modules over every modern browser, in some blockchain, or using a standalone VM. In the same way that multiple JavaScript…
Starknet/Cairo Contract Reverse Engineering, Disassembly & Analysis with Thoth In this video, I will show how to reverse, disassemble, decompile and analyze Cairo smart contracts deployed on Starknet using Thoth, our Fuzzinglabs’s Cairo/Starknet bytecode analyzer, disassembler & decompiler. https://youtu.be/T0KvG8Zps6I You will get access of the complete tutorial with source code, cheat sheet and or complete…
State of the Art of Ethereum Smart Contract Fuzzing in 2022 [EthCC5] Fuzzing is known as one of the most efficient techniques to find bugs in software. Sadly, when dealing with Ethereum smart contracts, the number of fuzzers and documentation available is really limited. During this talk, we will explain why fuzz testing EVM smart…
Solidity/Ethereum Smart Contract Audit using SlitherBlockchain Security In this video, I will show how to audit and find vulnerabilities inside an Ethereum smart contract written in Solidity using Slither, one of the best EVM smart contract analysis tools. https://youtu.be/s3FL5caAy5w You will get access of the complete tutorial with source code, cheat sheet and or complete…
Ethereum Smart Contract Reverse Engineering &EVM Disassembly Today I’m showing how EVM disassembly works and how to reconstruct the control flow graph (CFG) of an Ethereum smart contract when you only have access to the bytecode (closed-source). It’s really useful when you’re looking to analyze in-depth a contract at the EVM bytecode level. https://youtu.be/I6VDBvX9Pkw You…
Beaconfuzz – A Journey into Ethereum 2.0 Blockchain Fuzzing and Vulnerability Discovery @ OffensiveCon 2022 Abstract This talk is about our journey and step-by-step process into fuzzing Ethereum 2.0 implementations software. We will start with a brief introduction to Ethereum 2.0 specification and ecosystem. Then, we will explain the architecture of this type of software…
Ethereum Smart Contracts Analysis & Solidity Audit using Mythril Following last week’s video, I will show how to audit and find vulnerability inside an Ethereum smart contracts written in Solidity using Mythril, one of the best EVM smart contracts analysis tools. https://youtu.be/fhOMTYkw8FM NOTES etherstore.sol Running Mythril on `etherstore.sol` You will get access of the complete tutorial…
Fuzzing Ethereum Smart Contract using EchidnaBlockchain Security In this video about Blockchain Security, I will show how to find vulnerability inside an Ethereum smart contract written in Solidity using Echidna, one of the only Ethereum smart contract fuzzer. https://youtu.be/EA8_9x4D3Vk NOTES Get started with echidna: Echidna interface Get started with echidna: Echidna invariants Targeted Solidity Smart…
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