Jenkins Zanata Plugin 0.6 and earlier does not use a constant-time comparison when checking whether the provided and expected webhook token hashes are equal.

This could potentially allow attackers to use statistical methods to obtain a valid webhook token.

As of publication of this advisory, there is no fix.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-46660
• https://www.jenkins.io/security/advisory/2023-10-25/#SECURITY-2879
• http://www.openwall.com/lists/oss-security/2023/10/25/2