PT-2020-15452 · Cloudbees+1 · Jenkins

Wadeck Follonier · Published 2020-08-12 · Updated 2024-03-06 · CVE-2020-2231

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Jenkins versions 2.251 and earlier Jenkins LTS versions 2.235.3 and earlier

Description The issue results from the failure to escape the remote address of the host starting a build via 'Trigger builds remotely', leading to a stored cross-site scripting (XSS) vulnerability. This vulnerability can be exploited by users with Job/Configure permission or knowledge of the Authentication Token.

Recommendations For Jenkins versions 2.251 and earlier, update to a version later than 2.251 to resolve the issue. For Jenkins LTS versions 2.235.3 and earlier, update to a version later than 2.235.3 to resolve the issue. As a temporary workaround, consider restricting access to the 'Trigger builds remotely' feature to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JENKINS-2020-2231

CVE-2020-2231

GHSA-JPVQ-V729-7J2H

RHSA-2020:3808

RHSA-2020:3841

RHSA-2020:4223

Affected Products

Jenkins

References · 10

• 🔥 http://packetstormsecurity.com/files/160616/Jenkins-2.251-LTS-2.235.3-Cross-Site-Scripting.html · Exploit
• 🔥 https://exploit-db.com/exploits/49244 · Exploit
• https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-2231 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-2231 · Security Note
• https://osv.dev/vulnerability/BIT-jenkins-2020-2231 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-jpvq-v729-7j2h · Vendor Advisory
• https://github.com/jenkinsci/jenkins/commit/29c9a8fdeafe26fded955cfba188f50fd4f1786a · Note
• https://t.me/cvenotify/7407 · Telegram Post
• http://openwall.com/lists/oss-security/2020/08/12/4 · Note