Solmate-bad library have malicious transferFrom function
Summary
Malicious code in transferFrom function. The user with this address will be able to transfer tokens for itself from other users without permission
Vulnerability Details
https://github.com/PatrickAlphaC/solmate-bad/blob/c3877e5571461c61293503f45fc00959fff4ebba/src/tokens/ERC20.sol#L89
Impact
High
Tools Used
Manual review
Recommendations
Use other non-vulnerable library
Lead Judging Commences
unauthorized elf wallet approval in solmate-bad
Some sneaky elf has changed this library to a corrupted one where his wallet address skips all the approval checks for SantaToken! Shenanigans here - https://github.com/PatrickAlphaC/solmate-bad/blob/c3877e5571461c61293503f45fc00959fff4ebba/src/tokens/ERC20.sol#L88
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