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A compromised or malicious owner of PairsContrat can manipulate chainlinkFeed price #311

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code423n4 opened this issue Dec 16, 2022 · 3 comments
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2 (Med Risk) Assets not at direct risk, but function/availability of the protocol could be impacted or leak value bug Something isn't working duplicate-377 satisfactory satisfies C4 submission criteria; eligible for awards

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@code423n4
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Lines of code

https://github.com/code-423n4/2022-12-tigris/blob/588c84b7bb354d20cbca6034544c4faa46e6a80e/contracts/PairsContract.sol#L33-L37

Vulnerability details

Impact

Detailed description of the impact of this finding.
A compromised or malicious owner of PairsContract can manipulate chainlinkFeed price

Proof of Concept

Provide direct links to all referenced code in GitHub. Add screenshots, logs, or any other relevant proof that illustrates the concept.
A compromised or malicious owner of PairsContract can manipulate chainlinkFeed price as follows:

  1. call setAssetChainlinkFeed(uint256 _asset, address _MalicousFeed), now the _maliciousFeed becomes the fake chainlinkFeed
  2. false price can be provided by the _maliciousFeed and used in the advantage of the attacker to gain profit in trading

Tools Used

Remix

Recommended Mitigation Steps

The owner should be not allowed to change the chainlinkFeed, all chainlinkFeeds should be defined as constants and explicit. Use proxy pattern to include new feeds when necessary.

@code423n4 code423n4 added 2 (Med Risk) Assets not at direct risk, but function/availability of the protocol could be impacted or leak value bug Something isn't working labels Dec 16, 2022
code423n4 added a commit that referenced this issue Dec 16, 2022
@c4-judge
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GalloDaSballo marked the issue as duplicate of #418

@c4-judge
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GalloDaSballo marked the issue as duplicate of #377

@c4-judge c4-judge added the satisfactory satisfies C4 submission criteria; eligible for awards label Jan 22, 2023
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GalloDaSballo marked the issue as satisfactory

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Labels
2 (Med Risk) Assets not at direct risk, but function/availability of the protocol could be impacted or leak value bug Something isn't working duplicate-377 satisfactory satisfies C4 submission criteria; eligible for awards
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