Generic Webhook Trigger Plugin 1.84.1 and earlier does not use a constant-time comparison when checking whether the provided and expected webhook token are equal.

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

Generic Webhook Trigger Plugin 1.84.2 uses a constant-time comparison when validating the webhook token.

• https://nvd.nist.gov/vuln/detail/CVE-2022-43412
• https://www.jenkins.io/security/advisory/2022-10-19/#SECURITY-2874
• http://www.openwall.com/lists/oss-security/2022/10/19/3
• https://github.com/advisories/GHSA-2jxx-2x93-2q2f