Open redirect vulnerability in Jenkins CAS Plugin
Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins. This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication. Jenkins CAS Plugin 1.6.1 only redirects to relative (Jenkins) URLs.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-21673US | medium6.1 | — | ||
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. | ||||
02
references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/06/30/1WEB
- https://github.com/jenkinsci/cas-pluginPACKAGE
- https://github.com/jenkinsci/cas-plugin/commit/8ac536a953156160dbabb61bdb3b9bc75c3d0ef9WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-21673ADVISORY
- https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387WEB
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