CVE-2022-27203 Arbitrary JSON and property file read vulnerability in Jenkins Extended Choice Parameter Plugin

Medium 6.5 Published 15 Mar 2022 Updated 3 Aug 2024

Attackers with configure permissions can read arbitrary JSON and Java properties files from the Jenkins controller via path traversal.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-27203?

CVE-2022-27203 is a medium-severity path traversal vulnerability in Jenkins Extended Choice Parameter Plugin, published on 15 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Jenkins Extended Choice Parameter Plugin 346.vd87693c5a_86c and earlier allows attackers with Item/Configure permission to read values from arbitrary JSON and Java properties files on the Jenkins controller.

Weakness: CWE-22

Which versions are affected by CVE-2022-27203?

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

Package	Affected	Fixed in
`org.jenkins-ci.plugins:extended-choice-parameter` Maven	All versions to `346.vd87693c5a`	None
`org.jenkins-ci.plugins:extended-choice-parameter` Maven	All versions to `346.vd87693c5a`	None

Products include Jenkins Extended Choice Parameter.

How do I fix CVE-2022-27203?

No fix has been published for CVE-2022-27203 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-27203 being exploited?

There is no known exploitation of CVE-2022-27203 in the wild and no public exploit code.

Sources

Also known as GHSA-ch63-6cmg-gwg2.