PT-2021-14663 · Jenkins · Jenkins Claim Plugin+1

Wadeck Follonier · Published 2021-02-24 · Updated 2023-11-03 · CVE-2021-21620

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Jenkins Claim Plugin versions 2.18.1 and earlier

Description A cross-site request forgery (CSRF) vulnerability allows attackers to change claims. This issue arises because the form submission endpoint for assigning claims does not require POST requests, making it vulnerable to CSRF attacks.

Recommendations For Jenkins Claim Plugin versions 2.18.1 and earlier, update to version 2.18.2 or later, which requires POST requests for the affected HTTP endpoint, mitigating the CSRF vulnerability.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-21620

GHSA-4FFQ-6G62-J4V4

Affected Products

Jenkins

Jenkins Claim Plugin

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-21620 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21620 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4ffq-6g62-j4v4 · Vendor Advisory
• https://jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20%282%29 · Vendor Advisory
• https://github.com/jenkinsci/claim-plugin · Note
• https://t.me/cibsecurity/24073 · Telegram Post
• https://jenkins.io/security/advisory/2021-02-24/#SECURITY-2188%20(2) · Note
• https://t.me/cvenotify/10440 · Telegram Post