PT-2021-14684 · Jenkins · Jenkins Promoted Builds Plugin+1

Daniel Beck + 1 · Published 2021-04-07 · Updated 2023-11-30 · CVE-2021-21641

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 promoted builds Plugin versions 3.9 and earlier

Description A cross-site request forgery (CSRF) vulnerability allows attackers to promote builds. This issue arises because the plugin does not require POST requests for HTTP endpoints implementing promotion, resulting in CSRF vulnerabilities. A security hardening since Jenkins 2.287 and LTS 2.277.2 prevents exploitation of this vulnerability.

Recommendations For Jenkins promoted builds Plugin versions 3.9 and earlier, update to version 3.9.1 or later, which requires POST requests for the affected HTTP endpoints. As a temporary workaround, consider restricting access to the HTTP endpoints implementing promotion to minimize the risk of exploitation.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-21641

GHSA-5CXW-8V65-76VF

Affected Products

Jenkins

Jenkins Promoted Builds Plugin

References · 10

• https://osv.dev/vulnerability/GHSA-5cxw-8v65-76vf · Vendor Advisory
• https://jenkins.io/security/advisory/2021-04-07/#SECURITY-2293 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21641 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21641 · Vendor Advisory
• https://github.com/jenkinsci/promoted-builds-plugin/commit/46086a74891d620042c3d28a19cba3510c5dbf6a · Note
• https://github.com/jenkinsci/promoted-builds-plugin · Note
• https://t.me/cvenotify/61771 · Telegram Post
• http://openwall.com/lists/oss-security/2021/04/07/2 · Note
• https://t.me/cvenotify/13129 · Telegram Post
• https://t.me/cvenotify/12841 · Telegram Post