Tadle

Tadle
DeFi
30,000 USDC
View results
Submission Details
Severity: high
Valid

Usage of memory instead of storage to change offer abort status

Summary

Vulnerability Details

https://github.com/Cyfrin/2024-08-tadle/blob/04fd8634701697184a3f3a5558b41c109866e5f8/src/core/PreMarkets.sol#L334-L342

As we can see here memory is used instead of storage and memory does not rewrite storage slots so that action is nullified and there is a check here https://github.com/Cyfrin/2024-08-tadle/blob/04fd8634701697184a3f3a5558b41c109866e5f8/src/core/PreMarkets.sol#L552-L557

which is supposed to revert but since it does not rewrite the storage slot it will not revert

And both functions only accept ask offers so the issue is valid

Impact

Tools Used

Manual Review

Recommendations

Use storage instead of memory

Updates

Lead Judging Commences

0xnevi Lead Judge 10 months ago
Submission Judgement Published
Validated
Assigned finding tags:

finding-PreMarkets-listOffer-originIOfferInfo-storage-memory

Valid high severity, because the `abortOfferStatus` of the offer is not updated and persist through `storage` when listing an offer for turbo mode within the `offerInfoMap` mapping, it allows premature abortion given the `abortOfferStatus` defaults to `Initialized`, allowing the bypass of this [check](https://github.com/Cyfrin/2024-08-tadle/blob/04fd8634701697184a3f3a5558b41c109866e5f8/src/core/PreMarkets.sol#L552-L557) here and allow complete refund of initial collateral + stealing of trade tax which can potentially be gamed for profits using multiple addresses

Support

FAQs

Can't find an answer? Chat with us on Discord, Twitter or Linkedin.