PT-2020-15437 · Cloudbees+1 · Jenkins

Wadeck Follonier · Published 2020-07-15 · Updated 2024-03-06 · CVE-2020-2221

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Jenkins versions 2.244 and earlier Jenkins LTS versions 2.235.1 and earlier

Description The issue results from the failure to escape the upstream job's display name shown as part of a build cause, leading to a stored cross-site scripting issue.

Recommendations For Jenkins versions 2.244 and earlier, update to version 2.245 or later. For Jenkins LTS versions 2.235.1 and earlier, update to version 2.235.2 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-JENKINS-2020-2221

CVE-2020-2221

GHSA-G4J6-M3M3-CRW8

RHSA-2020:3519

RHSA-2020:3541

RHSA-2020:3808

Affected Products

Jenkins

References · 9

• https://jenkins.io/security/advisory/2020-07-15/#SECURITY-1901 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-2221 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-g4j6-m3m3-crw8 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-jenkins-2020-2221 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-2221 · Security Note
• https://github.com/jenkinsci/jenkins · Note
• https://github.com/jenkinsci/jenkins/commit/f6e575381bdba85afaf27c529d7298091f226e49 · Note
• http://openwall.com/lists/oss-security/2020/07/15/5 · Note
• https://t.me/cvenotify/5047 · Telegram Post