Submission Details
Severity:
Invalid sequencer check if the chain is Avalanche
Summary
In KeeperProxy::_validatePrice function, the sequencer check is not necessary if the network is `Avalanche.
Vulnerability Details
Impact
In case of Arbitrum sequencer downtime, transactions on Avalanche chain will revert unnecessarily, causing DoS.
Tools Used
Manual Review
Recommendations
Add an if block before executing the logic: if(block.chainid == 42161), the chain ID for Arbitrum mainnet, if true execute the tx as is, else, remove the sequencer check.
Prize pool breakdown
Total prize
50,000 USDC
nSLOC
1,91026
USDC / LOC
47,500
2,500
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