CVE-2021-21683

The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.

Published: Oct 7, 2021
Updated: Oct 26, 2023
CVE: CVE-2021-21683
GHSA: GHSA-4pw5-r58h-fv24
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 6.5
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v2:

Severity: Low
Score: 4
AV:N/AC:L/Au:S/C:P/I:N/A:N

CWEs:

CWE-22

OWASP TOP 10:

A5 - Broken Access Control

Affected Software
References

Software	From	Fixed in
jenkins / jenkins	-	2.303.1.x
jenkins / jenkins	-	2.314.x
org.jenkins-ci.main / jenkins-core	-	2.303.2
org.jenkins-ci.main / jenkins-core	2.304	2.315

http://www.openwall.com/lists/oss-security/2021/10/06/1
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481

Vulnerability Database

CVE-2021-21683

Deep Security Visibility Without the Complexity