Submission Details
Severity:
Unprocessed Protocol Fee Collection
Summary
The calculateLiquidityRate function computes protocol fees but fails to implement proper fee collection and distribution mechanisms, potentially resulting in lost protocol revenue.
Affected Code
function calculateLiquidityRate(uint256 utilizationRate, uint256 usageRate, uint256 protocolFeeRate, uint256 totalDebt) internal pure returns (uint256) {
if (totalDebt < 1) {
return 0;
}
uint256 grossLiquidityRate = utilizationRate.rayMul(usageRate);
uint256 protocolFeeAmount = grossLiquidityRate.rayMul(protocolFeeRate);
uint256 netLiquidityRate = grossLiquidityRate - protocolFeeAmount;
return netLiquidityRate;
}
Impact
Protocol fee revenue remains uncollected
Potential discrepancies in downstream calculations
Recommended
Implement state tracking for
protocolFeeAmountAdd fee distribution logic to designated recipient
Return both rate and fee values separately for proper handling
Updates
Lead Judging Commences
inallhonesty about 2 months ago
Submission Judgement Published Assigned finding tags:
Protocol fees are deducted from depositor returns in liquidity rate calculations but never collected/transferred to protocol treasury, causing value loss
inallhonesty about 2 months ago
Submission Judgement Published Assigned finding tags:
Protocol fees are deducted from depositor returns in liquidity rate calculations but never collected/transferred to protocol treasury, causing value loss
Prize pool breakdown
Total prize
77,280 USDC
nSLOC
3,86420 USDC / LOC
74,000
3,280
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