Missing Authorization in Jenkins and Jenkins LTS - CVE-2021-21692
Published: November 8, 2021
Vulnerability identifier: #VU57985
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-21692
CWE-ID: CWE-862
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 bypass authorization checks.
The vulnerability exists due to the operations FilePath#renameTo and FilePath#moveAllChildrenTo only check read permission on the source path. A remote attacker can compromise the target system.
How to mitigate CVE-2021-21692
Install updates from vendor's website.