mediumLogic errorEVM-Solidity
zkSync: EIP-155 is not enforced, allowing attackers/malicious operators to profit from replaying transactions
- Payout
- $0
- Protocol
- zkSync
- Disclosed
- Feb 29, 2024
- Source
- code4rena
zkSync Era's transaction validation in DefaultAccount.validateTransaction and the bootloader encoding omit the chain ID from the signed payload of legacy transactions whenever reserved[0] is zero, which happens automatically for legacy txs carrying a signature …
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References
- https://github.com/code-423n4/2023-10-zksync-findings/issues/882
- https://github.com/code-423n4/2023-10-zksync-findings
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