Cross-Contract Ricochet Attacks & Off-Chain-On-Chain Manipulation of Billion Dollar NFT Collections

The enticing narrative promised by the Ethereum blockchain is to be a decentralized world-computer within which utility based NFTs are an integral piece of the story. In this presentation, we will look at a crafty new technique that ricochets a utility based NFT across smart contracts to circumvent staking safeguards, and also how easy it is to exploit off-chain marketplace logic relied upon to implement ERC-721 and ERC-1155 standards...

By: Nitesh Dhanjani

Full Abstract and Presentation Materials:
https://www.blackhat.com/eu-22/briefings/schedule/#cross-contract-ricochet-attacks--off-chain-on-chain-manipulation-of-billion-dollar-nft-collections-29327

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