CVE-2023-41936 Jenkins Google Login Plugin non-constant time token comparison

High 7.5 Published Updated

Attackers can bypass authentication in the Jenkins Google Login Plugin by exploiting a timing side-channel 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-2023-41936?

CVE-2023-41936 is a high-severity vulnerability in Jenkins Google Login Plugin, published on 6 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jenkins Google Login Plugin 1.7 and earlier uses a non-constant time comparison function when checking whether the provided and expected token are equal, potentially allowing attackers to use statistical methods to obtain a valid token.

Weakness: CWE-697

Which versions are affected by CVE-2023-41936?

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

PackageAffectedFixed in
org.jenkins-ci.plugins:google-login MavenAll versions1.8
org.jenkins-ci.plugins:google-login MavenAll versions1.8

Products include Jenkins Google Login.

How do I fix CVE-2023-41936?

Upgrade org.jenkins-ci.plugins:google-login to 1.8 or later.

Is CVE-2023-41936 being exploited?

There is no known exploitation of CVE-2023-41936 in the wild and no public exploit code.

Sources

Also known as GHSA-g58x-57fv-86jh.

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