mediumBridge exploitEVM-Solidity
zkSync: L2SharedBridge l1LegacyBridge is not set
- Payout
- $0
- Protocol
- zkSync
- Disclosed
- May 29, 2024
- Source
- code4rena
zkSync's L2SharedBridge initialize() function validates the legacy L1 bridge address parameter but never stores it in the l1LegacyBridge storage slot, leaving it permanently address(0). Because finalizeDeposit() authorizes legacy-bridge-sourced messages agains …
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References
- https://github.com/code-423n4/2024-03-zksync-findings/issues/77
- https://github.com/code-423n4/2024-03-zksync-findings
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