CVE-2020-2302 Missing permission check in Jenkins Active Directory Plugin allows accessing domain health check page

What is CVE-2020-2302?

CVE-2020-2302 is a medium-severity missing authorization vulnerability in Jenkins Active Directory Plugin, published on 4 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A missing permission check in Jenkins Active Directory Plugin 2.19 and earlier allows attackers with Overall/Read permission to access the domain health check diagnostic page.

Weakness: CWE-862

Which versions are affected by CVE-2020-2302?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:active-directory. It affects 1 product.

Products include Jenkins Active Directory.

How do I fix CVE-2020-2302?

Upgrade org.jenkins-ci.plugins:active-directory to 2.20 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-2302 being exploited?

There is no known exploitation of CVE-2020-2302 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Active Directory Plugin

• CVE-2020-2299 Improper Authentication in Jenkins Active Directory Plugin Critical 9.8
• CVE-2020-2300 Improper Authentication (empty password) in Jenkins Active Directory Plugin Critical 9.8
• CVE-2020-2301 Authentication cache in Active Directory Jenkins Plugin allows logging in with any password Critical 9.8
• CVE-2017-2649 Jenkins Active Directory Plugin did not verify certificate of AD server High 8.1
• CVE-2019-1003009 Jenkins Active Directory Plugin Improper certificate validation with StartTLS High 7.4

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-q6rq-4whr-r879.