Path Equivalence in Jenkins and Jenkins LTS - CVE-2021-21682
Published: October 8, 2021
Vulnerability identifier: #VU57147
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21682
CWE-ID: CWE-42
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper handling of equivalent directory names on Windows. A remote authenticated attacker can change or replace configurations of jobs and other entities.
Affected software
Jenkins
Jenkins LTS
Jenkins LTS
How to mitigate CVE-2021-21682
Install updates from vendor's website.
Jenkins - update to 2.315
Jenkins LTS - update to 2.303.2
Jenkins LTS - update to 2.303.2