CVE-2023-23940 (GCVE-0-2023-23940)

Vulnerability from cvelistv5 – Published: 2023-02-03 19:43 – Updated: 2025-03-10 21:16
VLAI?
Title
OpenZeppelin Contracts for Cairo is vulnerable to signature validation bypass
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.
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
Assigner
References
Impacted products
Vendor Product Version
OpenZeppelin cairo-contracts Affected: >= 0.2.0, < 0.6.1
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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