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CVE-2022-35961

7.9 · HIGH

OpenZeppelin Contracts is a library for secure smart contract development.

Published Aug 15, 2022CWE-354EPSS 0.43%

Overview

CVE-2022-35961 is a high-severity vulnerability. It was published on August 15, 2022 and has a CVSS 3.1 base score of 7.9 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted, submit it again in a different form, and bypass this protection. The issue has been patched in 4.7.3.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/OpenZeppelin/openzeppelin-contracts/pull/3610GitHubgithub.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3GitHubgithub.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6hGitHubgithub.com/OpenZeppelin/openzeppelin-contracts/pull/3610GitHubgithub.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3GitHubgithub.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h

How CyberStrike helps

Frequently asked questions

What is CVE-2022-35961?

CVE-2022-35961 is a high-severity vulnerability. It was published on August 15, 2022 and has a CVSS 3.1 base score of 7.9 (HIGH).

How severe is CVE-2022-35961?

This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-35961?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-35961?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-35961 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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