The Standard

Summary

The current implementation sets amountOutMinimum to 0, indicating that no tokens are expected in return for a swap. This poses a significant risk, as it allows malicious actors to exploit the transaction by sandwiching it and taking all tokens from the swap.

Vulnerability Details

The function calculateMinimumAmountOut in SmartVaultV3.sol returns 0 when still in bounds, indicating a lack of expectation to receive anything for the swap.

Impact

Setting amountOutMinimum to 0 exposes the transaction to front-running attacks, where malicious actors can exploit the lack of a minimum requirement and take all tokens from the swap, resulting in a loss of all tokens for the original sender.

Tools Used

Manual review

Recommendations

It is highly recommended to set a meaningful and non-zero value for amountOutMinimum to prevent front-running attacks. By specifying a minimum acceptable amount, the vulnerability to sandwich attacks can be mitigated.