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.
EPSS: 0.016 (73.1th percentile) — read the EPSS interpretation.
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.
Affected products
- Jenkins Cas
- Jenkins Project Cas Plugin — versions unspecified
Public proof-of-concept exploits
References
- jenkinsci-cert@googlegroups.com (x_refsource_CONFIRM, Vendor Advisory)
- jenkinsci-cert@googlegroups.com (mailing-list, x_refsource_MLIST, 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.