CVE-2023-23940 (GCVE-0-2023-23940)
Vulnerability from cvelistv5
Published
2023-02-03 19:43
Modified
2025-03-10 21:16
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-345 - Insufficient Verification of Data Authenticity
Summary
OpenZeppelin Contracts for Cairo is a library for secure smart contract development written in Cairo for StarkNet, a decentralized ZK Rollup. `is_valid_eth_signature` is missing a call to `finalize_keccak` after calling `verify_eth_signature`. As a result, any contract using `is_valid_eth_signature` from the account library (such as the `EthAccount` preset) is vulnerable to a malicious sequencer. Specifically, the malicious sequencer would be able to bypass signature validation to impersonate an instance of these accounts. The issue has been patched in 0.6.1.
References
Impacted products
Vendor Product Version
OpenZeppelin cairo-contracts Version: >= 0.2.0, < 0.6.1
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