Decent - PUSH0's results

Decent enables one-click transactions using any token across chains.

General Information

Platform: Code4rena

Start Date: 19/01/2024

Pot Size: $36,500 USDC

Total HM: 9

Participants: 113

Period: 3 days

Judge: 0xsomeone

Id: 322

League: ETH

Decent

Findings Distribution

Researcher Performance

Rank: 96/113

Findings: 1

Award: $0.12

🌟 Selected for report: 0

🚀 Solo Findings: 0

Lines of code

https://github.com/decentxyz/decent-bridge/blob/7f90fd4489551b69c20d11eeecb17a3f564afb18/src/DcntEth.sol#L17-L22

Vulnerability details

Vulnerability details

The function DcntEth.setRouter() is currently as following:

function setRouter(address _router) public {
    router = _router;
}

https://github.com/decentxyz/decent-bridge/blob/7f90fd4489551b69c20d11eeecb17a3f564afb18/src/DcntEth.sol#L17-L22

There is no access control. Anyone can just call it and set the router as themselves.

Since router is able to mint tokens via function mint(), anyone can mint infinite DcntEth tokens as a result.

Impact

Anyone can set themselves as the router, and infinitely mint tokens.

Tools Used

Manual review

Add the onlyOwner modifier as well, to impose proper access control.

function setRouter(address _router) public onlyOwner {
    router = _router;
}

Assessed type

Access Control

#0 - c4-pre-sort

2024-01-23T21:29:42Z

raymondfam marked the issue as sufficient quality report

#1 - c4-pre-sort

2024-01-23T21:29:49Z

raymondfam marked the issue as duplicate of #14

#2 - c4-judge

2024-02-03T13:31:25Z

alex-ppg marked the issue as satisfactory

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