CVE-2022-23106 Observable Discrepancy and Observable Timing Discrepancy in Jenkins Configuration as Code Plugin

Medium 5.3 Published Updated

Attackers can bypass authentication token validation in the Jenkins Configuration as Code Plugin using timing attacks to obtain valid tokens.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2022-23106?

CVE-2022-23106 is a medium-severity vulnerability in Jenkins Configuration as Code Plugin, published on 12 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jenkins Configuration as Code Plugin 1.55 and earlier used a non-constant time comparison function when validating an authentication token allowing attackers to use statistical methods to obtain a valid authentication token.

Weakness: CWE-203

Which versions are affected by CVE-2022-23106?

8 open source packages ship an affected version, including io.jenkins:configuration-as-code. It affects 1 product.

PackageAffectedFixed in
io.jenkins:configuration-as-code MavenAll versions1.47.1
io.jenkins:configuration-as-code MavenAll versions1.47.1
io.jenkins:configuration-as-code MavenFrom 1.481.53.1
io.jenkins:configuration-as-code MavenFrom 1.481.53.1
io.jenkins:configuration-as-code MavenFrom 1.541.54.1
io.jenkins:configuration-as-code MavenFrom 1.541.54.1
2 more packages
io.jenkins:configuration-as-code MavenFrom 1.551.55.1
io.jenkins:configuration-as-code MavenFrom 1.551.55.1

Products include Jenkins Configuration as Code.

How do I fix CVE-2022-23106?

Upgrade io.jenkins:configuration-as-code to a fixed version for your release line: 1.47.1, 1.53.1, 1.54.1 or 1.55.1.

Is CVE-2022-23106 being exploited?

There is no known exploitation of CVE-2022-23106 in the wild and no public exploit code.

Sources

Also known as GHSA-fpj7-9xm6-8hgr.

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