Auth bypass in Jenkins Cloud Statistics
CVE-2021-21631
Jenkins Cloud Statistics Plugin 0.26 and earlier does not perform a permission check in an HTTP endpoint, allowing attackers with Overall/Read permission and knowledge of random activity IDs to view related provisioning exception error messages.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (54.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Jenkins Cloud Statistics
- Jenkins Project Cloud Statistics Plugin — versions unspecified
Weakness classification (CWE)
References
- www.jenkins.io/security/advisory/2021-03-30/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/03/30/1 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21631?
- CVE-2021-21631 is a medium-severity vulnerability in Jenkins Cloud Statistics, classified under Missing Authorization. CVSS score: 4.3/10. Published 2021-03-30.
- How severe is CVE-2021-21631?
- Medium severity. CVSS v3 base score is 4.3 out of 10.