Trader Joe contest - saian's results

Handle

saian

Vulnerability details

Impact

transferFrom might return false in some implementation that will go unchecked, use a require() or openzeppelin's safeTransferFrom

Proof of Concept

https://github.com/code-423n4/2022-01-trader-joe/blob/a1579f6453bc4bf9fb0db9c627beaa41135438ed/contracts/RocketJoeFactory.sol#L133

Tools Used

Manual Analysis

Recommended Mitigation Steps

Use a require statement to check return value or use safeTransferFrom