CVE-2023-30521 Jenkins Assembla merge request builder Plugin missing authentication to access endpoint

Medium 5.3 Published Updated

Unauthenticated attackers can trigger builds for specified repositories due to a missing permission check in the Jenkins Assembla merge request builder plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-30521?

CVE-2023-30521 is a medium-severity missing authorization vulnerability in Jenkins Assembla merge request builder Plugin, published on 12 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A missing permission check in Jenkins Assembla merge request builder Plugin 1.1.13 and earlier allows unauthenticated attackers to trigger builds of jobs corresponding to the attacker-specified repository.

Weakness: CWE-862

Which versions are affected by CVE-2023-30521?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:assembla-merge-request-builder. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.plugins:assembla-merge-request-builder MavenAll versions to 1.1.13None
org.jenkins-ci.plugins:assembla-merge-request-builder MavenAll versions to 1.1.13None

Products include Jenkins Assembla Merge Request Builder.

How do I fix CVE-2023-30521?

No fix has been published for CVE-2023-30521 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2023-30521 being exploited?

There is no known exploitation of CVE-2023-30521 in the wild and no public exploit code.

Sources

Also known as GHSA-jr86-6j4j-mv45.

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