PT-2023-27401 · Jenkins · Jenkins Tuleap Authentication Plugin+1

Kevin Guerroudj + 1 · Published 2023-08-16 · Updated 2023-08-18 · CVE-2023-40343

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Jenkins Tuleap Authentication Plugin versions 1.1.20 and earlier

Description The issue concerns a non-constant time comparison function used when validating an authentication token, allowing attackers to potentially use statistical methods to obtain a valid authentication token. This could enable attackers to gain unauthorized access.

Recommendations For Jenkins Tuleap Authentication Plugin versions 1.1.20 and earlier, update to version 1.1.21 or later, which uses a constant-time comparison when validating authentication tokens.

Fix

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2023-40343

GHSA-5R33-MGJF-6656

Affected Products

Jenkins

Jenkins Tuleap Authentication Plugin

References · 11

• https://osv.dev/vulnerability/GHSA-5r33-mgjf-6656 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-40343 · Security Note
• https://jenkins.io/security/advisory/2023-08-16/#SECURITY-3229 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-40343 · Vendor Advisory
• https://twitter.com/CVEnew/status/1691822022043537873 · Twitter Post
• https://t.me/cvenotify/56800 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1691853202260459611 · Twitter Post
• http://openwall.com/lists/oss-security/2023/08/16/3 · Note
• https://t.me/cvenotify/56885 · Telegram Post
• https://t.me/cvenotify/56606 · Telegram Post
• https://t.me/cibsecurity/68667 · Telegram Post