Vulnerability Description
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.
CVSS Score
6.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Jenkins | Cas | <= 1.6.0 |
References
- http://www.openwall.com/lists/oss-security/2021/06/30/1Mailing ListThird Party Advisory
- https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/06/30/1Mailing ListThird Party Advisory
- https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387Vendor Advisory
FAQ
What is CVE-2021-21673?
CVE-2021-21673 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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.
How severe is CVE-2021-21673?
CVE-2021-21673 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21673?
Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Cas.