Submission Details
Severity:
Fees contract swaps tokens on Uniswap with no slippage protection
Summary
Fees contract swaps tokens on Uniswap with no slippage protection.
Vulnerability Details
ISwapRouter.ExactInputSingleParams memory params = ISwapRouter
.ExactInputSingleParams({
tokenIn: _profits,
tokenOut: WETH,
fee: 3000,
recipient: address(this),
deadline: block.timestamp,
amountIn: amount,
amountOutMinimum: 0,
sqrtPriceLimitX96: 0
});
Above tokens are swapped and always use 0 for min out meaning the swapped tokens will be sandwiched and stolen.
Impact
Swapped tokens can be sandwiched and stolen.
Tools Used
Manual Review
Recommendations
Specify slippage parameters for all swapped tokens.
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628
USDC / LOC
18,000 USDC
2,000 USDC
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