TempleGold
TempleDAO
Foundry
25,000 USDC
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Submission Details
Severity: low
Invalid

recoverToken Function in DaiGoldAuction Does Not Decrement _currentEpochId, Leading to Auction State Inconsistencies

0xCiphky

Vulnerability Details:

The recoverToken function in the DaiGoldAuction contract can be called to recover auction tokens from the current auction as long as it has not started yet. When the token being recovered is Temple Gold, the function also deletes the current auction by deleting epochs[epochId] and moving the leftover auction amount to nextAuctionGoldAmount to be used for the next auction. The problem is that the _currentEpochId state variable, which is incremented when an auction is enabled, is not decremented when the current auction is deleted.

function recoverToken(
address token,
address to,
uint256 amount
) external override onlyElevatedAccess {
...
// auction started but cooldown pending
uint256 epochId = _currentEpochId;
EpochInfo storage info = epochs[epochId];
...
uint256 _totalAuctionTokenAmount = info.totalAuctionTokenAmount;
if (amount > _totalAuctionTokenAmount) { revert CommonEventsAndErrors.InvalidAmount(token, amount); }
/// @dev Epoch data is deleted and leftover amount is addedd to nextAuctionGoldAmount.
/// so admin should recover total auction amount for epoch if that's the requirement
delete epochs[epochId];
/// @dev `nextAuctionGoldAmount` is set to 0 in `startAuction`.
/// `nextAuctionGoldAmount > 0` if there was a distribution after `auctionStart` called
/// epoch is deleted. so if amount < totalAuctionTokenAmount for epoch, add leftover to next auction amount
unchecked {
nextAuctionGoldAmount += _totalAuctionTokenAmount - amount;
}
...
templeGold.safeTransfer(to, amount);
}

Impact:

The _currentEpochId is not decremented when an auction is deleted, leading to inconsistencies in the auction state.

Tools Used:

Manual analysis

Recommendation:

To resolve this issue, ensure that the _currentEpochId is decremented when the current auction is deleted in the recoverToken function.

Updates

Lead Judging Commences

inallhonesty Lead Judge about 1 year ago
Submission Judgement Published
Invalidated
Reason: Incorrect statement

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