CVE-2022-34170 Cross-site Scripting vulnerability in Jenkins

Medium 5.4 Published Updated

Attackers with Job/Configure permission can execute arbitrary scripts via unescaped help tooltips, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-34170?

CVE-2022-34170 is a medium-severity cross-site scripting vulnerability in Jenkins Jenkins, published on 22 Jun 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In Jenkins 2.320 through 2.355 (both inclusive) and LTS 2.332.1 through LTS 2.332.3 (both inclusive) the help icon does not escape the feature name that is part of its tooltip, effectively undoing the fix for SECURITY-1955, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.

Weakness: CWE-79

Which versions are affected by CVE-2022-34170?

7 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core and jenkins. It affects 1 product.

PackageAffectedFixed in
org.jenkins-ci.main:jenkins-core MavenFrom 2.3202.332.4
org.jenkins-ci.main:jenkins-core MavenFrom 2.3202.332.4
org.jenkins-ci.main:jenkins-core MavenFrom 2.3462.346.1
org.jenkins-ci.main:jenkins-core MavenFrom 2.3462.346.1
org.jenkins-ci.main:jenkins-core MavenFrom 2.3502.356
org.jenkins-ci.main:jenkins-core MavenFrom 2.3502.356
1 more packages
jenkins BitnamiFrom 2.320.02.355.1

Products include Jenkins Jenkins.

How do I fix CVE-2022-34170?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.332.4, 2.346.1 or 2.356.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2022-34170 being exploited?

There is no known exploitation of CVE-2022-34170 in the wild and no public exploit code.

All Jenkins Jenkins vulnerabilities

Sources

Also known as BIT-jenkins-2022-34170, GHSA-62wf-24c4-8r76.

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