Exposing Hidden Backdoors in NFT Smart Contracts: a Static Security Analysis of Rug Pull Patterns

The explosive growth of Non-Fungible Tokens NFTs has revolutionized digital ownership by enabling the creation, exchange, and monetization of unique assets on blockchain networks. However, this surge in popularity has also given rise to a disturbing trend: the emergence of rug pulls - fraudulent...

Wrong assumption that NFT is not in contract when loan is active

Lines of code Vulnerability details Impact The lender might lose or be robbed of his supplied NFT. Proof of Concept A lender can withdraw the NFT in his lien if it is not currently on loan by calling withdrawNftWithInterest. This is checked by relying on IRC721.safeTransferFrom to revert if the N...