vulnerability

Jenkins Advisory 2021-06-30: CVE-2021-21673: Open redirect vulnerability in CAS Plugin

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Severity

CVSS

(AV:N/AC:M/Au:N/C:P/I:P/A:N)

Published

Jun 30, 2021

Added

Dec 2, 2021

Modified

Mar 27, 2026

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.

Solutions

jenkins-lts-upgrade-2_289_2jenkins-upgrade-2_300

References

CVE-2021-21673
https://attackerkb.com/topics/CVE-2021-21673
EUVD-EUVD-2022-2055
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-2055
https://jenkins.io/security/advisory/2021-06-30/

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