PT-2024-1426 · Jenkins+1 · Jenkins Gitlab Branch Source Plugin+2

Yaroslav Afenkin · Published 2024-01-24 · Updated 2024-08-29 · CVE-2024-23903

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Jenkins GitLab Branch Source Plugin versions 684.vea fa 7c1e2fe3 and earlier

Description The issue is related to the use of a non-constant time comparison function when checking whether the provided and expected webhook token are equal. This potentially allows attackers to use statistical methods to obtain a valid webhook token, which could lead to unauthorized access to confidential information.

Recommendations For Jenkins GitLab Branch Source Plugin versions 684.vea fa 7c1e2fe3 and earlier, update to a version that uses a constant-time comparison function, such as version 688.v5fa 356ee8520, to prevent attackers from obtaining a valid webhook token using statistical methods.

Fix

Weakness Enumeration

CWE-697

Related Identifiers

BDU:2024-00900

CVE-2024-23903

GHSA-F67F-2J6R-M4C9

Affected Products

Jenkins

Jenkins Gitlab Branch Source Plugin

Red Os

References · 14

• https://osv.dev/vulnerability/GHSA-f67f-2j6r-m4c9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-23903 · Security Note
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://jenkins.io/security/advisory/2024-01-24/#SECURITY-2871 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00900 · Security Note
• https://osv.dev/vulnerability/CVE-2024-23903 · Vendor Advisory
• https://github.com/jenkinsci/gitlab-branch-source-plugin · Note
• https://github.com/jenkinsci/gitlab-branch-source-plugin/commit/8bfe1046cf342b99419457b9336addbbf346f89a · Note
• https://twitter.com/CVEnew/status/1750221650484773034 · Twitter Post
• http://openwall.com/lists/oss-security/2024/01/24/6 · Note
• https://t.me/cvenotify/69393 · Telegram Post
• https://vuldb.com/ru/?id.252003 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-jenkins-11-04-24 · Note
• https://openwall.com/lists/oss-security/2024/01/24/6 · Note