Nour Eldennour99.hashnode.dev·Jul 20, 2024Bypassing extcodesize(), Node Guardians CTFExplaining extcodesize() : extcodesize() is an opcode that retrieves the size of an account's code by checking the byte size of the address. It takes a 20-byte address and returns the byte size of the code. Example : InputOutput 0x43a61f3f4c73...DiscussSmart Contracts
WildFlower.Eth🌺wildflauwer.hashnode.dev·Jul 10, 2024Blockchain Glossary Every Smart Contract Developer Should KnowChatGPT Since the 2021 bull run, the blockchain industry has rapidly expanded with new technologies and solutions, each bringing its own terminology and concepts. As the industry evolves, it can be challenging to keep pace with everything that's happ...Discuss#blockchain #web3 #smartcontracts #blockchaindevelopment #layer1 #layer2 #zksync #rollups
Ashish Kumar Sahoogenashish.hashnode.dev·Jul 5, 2024Guide to Reentrancy Vulnerabilities in Solidity : Attack #02Introduction: A reentrancy attack is a type of vulnerability that can occur in a smart contract, where an attacker exploits the contract by repeatedly calling a function before the initial execution of that function is complete and the state of the c...DiscussSmart Contracts
Ashish Kumar Sahoogenashish.hashnode.dev·Jul 4, 2024Guide to Preventing Access Control Flaws in Solidity: Attack #01Introduction: What the heck is access control??? In software development, access control refers to the practice of granting users or administrators the ability to access certain functions or options and modify certain things based on predefined crite...Discuss·1 likeSolidity
Nour Eldennour99.hashnode.dev·Jun 26, 2024My Findings For First Flight #17: DussehraIntroduction: The First Flight #17: Dussehra contest on CodeHawks uncovered critical security vulnerabilities in the ChoosingRam contract. Our analysis revealed issues such as predictable randomness and lack of access control, which threaten the inte...DiscussSecurity
Yahia Khaleddaredevil.hashnode.dev·Jun 23, 2024My Findings for my First Flight: DussehraFirst Flights at CodeHawks it's like a real-life contests that has a boxed time to find Security Vulnerabilities for smart contracts protocols, and I contributed to First Flight#17: Dussehra, as I decided to make this simple write-up to explain the b...Discuss·120 readsWEB3-CTFsBlockchain
ABAabarbatei.xyz·Jun 5, 2024Reviewing Issues with Deez 🥜 404 CodeFrom the 23rd of April and up to the 3rd of May 2024 Guardian Audits was engaged in a security review of the DN404🥜 codebase. Five people were on the audit, myself included. A lot of interesting findings were discovered, interesting enough to be put...DiscussDN404
Lokesh Jhalokeshjha.hashnode.dev·May 26, 2024Smart Networks in BlockchainBlockchain technology has been a game-changer since its inception, introducing unparalleled security and transparency in various domains. One of the most promising advancements within this field is the development of smart networks. These networks le...DiscussWeb3
RivanorthProblog.rivanorth.com·May 8, 2024Security Roundup: May 2024 EditionDive into the most significant security incidents from last month, get key insights into what happened and stay ahead of the curve! April 2024 Hacks Grand Base - $2M - A DeFi market on Base that focuses on synthesising and tokenising real-world asset...Discuss·1 likeWeb3Blockchain
TutorialBoyforTUTORIALBOYtutorialboy24.hashnode.dev·Apr 28, 2024A Comprehensive Guide to Learning Smart Contract Security: From Scratch to AdvancedIntroduction Welcome to your journey into the world of smart contract security! This guide will take you through all the necessary steps to understand and master the art of building secure decentralized applications (dApps). We will explore various r...DiscussSmart Contracts
