WhoAmI?
may be auditor
Block: 22
Author: Anonymous
AuditProfile
Security blog
Cancel on hold transfers
#cancel
#order
#memory
Hint
How can you fix in the contract that the action was canceled?
Answer
There is no check to see if the transaction has been cancelled before. In other words, an attacker can ‘pour’ one and the same transaction into the array several times, it will run through a loop and withdraw money from the contract.
CTF
Capture the Ether The Ethernaut Damn Vulnerable DeFi CryptoZombies Speedrun Ethereum CipherShastra Mr Steal Yo Crypto Cryptohack DeFi Hack Ether Hack CTF protocol CTF Blockchain ChallengesAwesome Books
Uniswap V2 Book
by RareSkills
Uniswap V3 Book
by Jeiwan
Compound Book
by RareSkills
ZK Book
by RareSkills
Ethereum Book
by Andreas M. Antonopoulos, Gavin Wood
Beigepaper
by Micah Dameron
Useful tools
EVM diff
Compare execution layer differences between chains
EVM storage
Dive deep into the storage of any contract
