PT-2020-15419 · Jenkins · Jenkins Vncrecorder Plugin+1

Wadeck Follonier · Published 2020-07-02 · Updated 2023-11-02 · CVE-2020-2205

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Jenkins VncRecorder Plugin versions 1.25 and earlier

Description The issue is related to a stored cross-site scripting (XSS) vulnerability. It occurs because the tool path in the checkVncServ form validation endpoint is not properly escaped. This vulnerability can be exploited by Jenkins administrators. The endpoint can be accessed via job configuration forms.

Recommendations For Jenkins VncRecorder Plugin versions 1.25 and earlier, update to version 1.35 or later to resolve the issue. As a temporary workaround, consider restricting access to the checkVncServ form validation endpoint until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-2205

GHSA-VQP8-H53H-3JFH

Affected Products

Jenkins

Jenkins Vncrecorder Plugin

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2020-2205 · Security Note
• https://osv.dev/vulnerability/GHSA-vqp8-h53h-3jfh · Vendor Advisory
• https://jenkins.io/security/advisory/2020-07-02/#SECURITY-1728%20%281%29 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-2205 · Vendor Advisory
• https://github.com/jenkinsci/vncrecorder-plugin · Note
• http://openwall.com/lists/oss-security/2020/07/02/7 · Note
• https://jenkins.io/security/advisory/2020-07-02/#SECURITY-1728%20(1) · Note
• https://t.me/cvenotify/4812 · Telegram Post