Jan 14Damn Vulnerable DeFi Challenge #12 Solution — ClimberDamn Vulnerable DeFi is the war game created by @tinchoabbate to learn offensive security of DeFi smart contracts. Throughout numerous challenges, you will build the skills to become a bug hunter or security auditor in the space. Challenge #12 — Climber There’s a secure vault contract guarding 10 million DVT tokens. …Ethereum10 min readEthereum10 min read
Jan 2Damn Vulnerable DeFi Challenge #11 Solution — BackdoorDamn Vulnerable DeFi is the war game created by @tinchoabbate to learn offensive security of DeFi smart contracts. Throughout numerous challenges, you will build the skills to become a bug hunter or security auditor in the space. Challenge #11 — Backdoor To incentivize the creation of more secure wallets in their team, someone has…Web 310 min readWeb 310 min read
Oct 6, 2022EthernautDAO CTF 9 Solution — EtherWalletΞthernautDAO is common goods DAO aimed at transforming developers into Ethereum developers. They started releasing CTF challenges on Twitter, so how couldn’t I start solving them? CTF 9: EtherWallet The challenge start from this Tweet: In this challenge, we need to exploit an ERC721 token called EtherWallet. …Ethereum6 min readEthereum6 min read
Sep 27, 2022EthernautDAO CTF 8 Solution — Vulnerable NFTΞthernautDAO is common goods DAO aimed at transforming developers into Ethereum developers. They started releasing CTF challenges on Twitter, so how couldn’t I start solving them? CTF 8: Vulnerable NFT The challenge start from this Tweet: In this challenge, we need to exploit an ERC721 token called VNFT (Vulnerable NFT). The goal of…Ethereum7 min readEthereum7 min read
Aug 19, 2022EthernautDAO CTF 7 Solution — SwitchΞthernautDAO is common goods DAO aimed at transforming developers into Ethereum developers. They started releasing CTF challenges on Twitter, so how couldn’t I start solving them? CTF 7: Switch The challenge start from this Tweet: For this challenge, we have to deal only with a single Smart Contract called Switch. The goal…Ethereum5 min readEthereum5 min read
Aug 18, 2022The Ethernaut Challenge #24 Solution — Double Entry PointThis is Part 23 of the “Let’s play OpenZeppelin Ethernaut CTF” series, where I will explain how to solve each challenge. The Ethernaut is a Web3/Solidity based wargame created by OpenZeppelin. Each level is a smart contract that needs to be ‘hacked’. The game acts both as a tool for…Ethereum9 min readEthereum9 min read
Aug 16, 2022The Ethernaut Challenge #23 Solution — Puzzle WalletThis is Part 23 of the “Let’s play OpenZeppelin Ethernaut CTF” series, where I will explain how to solve each challenge. The Ethernaut is a Web3/Solidity based wargame created by OpenZeppelin. Each level is a smart contract that needs to be ‘hacked’. The game acts both as a tool for…Ethereum10 min readEthereum10 min read
Aug 13, 2022Let’s play Damn Vulnerable DeFi CTF — learning Solidity security while playing!Damn Vulnerable DeFi is the war game created by @tinchoabbate to learn offensive security of DeFi smart contracts. Throughout numerous challenges, you will build the skills to become a bug hunter or security auditor in the space. Each challenge can be considered standalone. Depending on the challenge, you should either…Ethereum2 min readEthereum2 min read
Aug 12, 2022The Ethernaut Challenge #22 Solution — Dex TwoThis is Part 22 of the “Let’s play OpenZeppelin Ethernaut CTF” series, where I will explain how to solve each challenge. The Ethernaut is a Web3/Solidity based wargame created by OpenZeppelin. Each level is a smart contract that needs to be ‘hacked’. The game acts both as a tool for…Ethereum4 min readEthereum4 min read
Aug 11, 2022The Ethernaut Challenge #21 Solution — DexThis is Part 21 of the “Let’s play OpenZeppelin Ethernaut CTF” series, where I will explain how to solve each challenge. The Ethernaut is a Web3/Solidity based wargame created by OpenZeppelin. Each level is a smart contract that needs to be ‘hacked’. The game acts both as a tool for…Ethereum7 min readEthereum7 min read