Information disclosure in Jenkins and Jenkins LTS - CVE-2021-21602
Published: January 13, 2021 / Updated: January 14, 2021
Vulnerability identifier: #VU49527
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-21602
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
Jenkins
Jenkins LTS
Jenkins
Jenkins LTS
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in workspace browsers. A remote authenticated attacker can create symbolic links that allow them to access files outside workspaces using the workspace browser.
How to mitigate CVE-2021-21602
Install updates from vendor's website.