CVE-2021-21673

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.

6.1

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.36%

Vendor Advisory jenkins.io

Affected: Jenkins project Jenkins CAS Plugin

References

Link	Tags
https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2387	vendor advisory
http://www.openwall.com/lists/oss-security/2021/06/30/1	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-21673?: CVE-2021-21673 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21673?: To fix CVE-2021-21673, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21673 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-21673 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21673?: CVE-2021-21673 affects Jenkins project Jenkins CAS Plugin.

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