Vulnerability in Jenkins Cas
CVE-2021-21673
Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.016 (74.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Jenkins Cas
- Jenkins Project Cas Plugin — versions unspecified
Public proof-of-concept exploits
References
- www.jenkins.io/security/advisory/2021-06-30/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/06/30/1 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21673?
- CVE-2021-21673 is a medium-severity vulnerability in Jenkins Cas. CVSS score: 6.1/10. Published 2021-06-30.
- How severe is CVE-2021-21673?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-21673 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.