Auth bypass in Jenkins Matrix Authorization Strategy
CVE-2021-21623
An incorrect permission check in Jenkins Matrix Authorization Strategy Plugin 2.6.5 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Jenkins Matrix Authorization Strategy
- Jenkins Project Matrix Authorization Strategy Plugin — versions unspecified, 2.5.2, 2.6.3.1
Weakness classification (CWE)
References
- www.jenkins.io/security/advisory/2021-03-18/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/03/18/5 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21623?
- CVE-2021-21623 is a medium-severity vulnerability in Jenkins Matrix Authorization Strategy, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2021-03-18.
- How severe is CVE-2021-21623?
- Medium severity. CVSS v3 base score is 6.5 out of 10.