mediumBridge exploitEVM-Solidity
zkSync: `Mailbox.requestL2Transaction()` checks the deposit limit of `msg.sender` (`L1WethBridge`) instead of the real depositor of weth from L1, as a result, after certain time, nobody will be able to deposit weth anymore from L1
- Payout
- $0
- Protocol
- zkSync
- Disclosed
- Feb 29, 2024
- Source
- code4rena
zkSync's L1 WETH deposit flow routes through L1WethBridge and Mailbox.requestL2Transaction, which enforces a per-depositor deposit cap against msg.sender. Because msg.sender at that point is the L1WethBridge contract rather than the actual depositor, the cap i …
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References
- https://github.com/code-423n4/2023-10-zksync-findings/issues/246
- https://github.com/code-423n4/2023-10-zksync-findings
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