CVE-2017-1000504 Cross-Site Request Forgery in Jenkins

High 8.1 Published Updated

A race condition during Jenkins startup allows attackers to bypass CSRF protection within a short initialization window.

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

What is CVE-2017-1000504?

CVE-2017-1000504 is a high-severity vulnerability in Jenkins Jenkins, published on 24 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A race condition during Jenkins 2.94 and earlier; 2.89.1 and earlier startup could result in the wrong order of execution of commands during initialization. There is a very short window of time after startup during which Jenkins may no longer show the 'Please wait while Jenkins is getting ready to work' message but Cross-Site Request Forgery (CSRF) protection may not yet be effective.

Weakness: CWE-352

Which versions are affected by CVE-2017-1000504?

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

PackageAffectedFixed in
org.jenkins-ci.main:jenkins-core MavenFrom 2.812.89.2
org.jenkins-ci.main:jenkins-core MavenFrom 2.812.89.2
org.jenkins-ci.main:jenkins-core MavenFrom 2.902.95
org.jenkins-ci.main:jenkins-core MavenFrom 2.902.95

Products include Jenkins Jenkins.

How do I fix CVE-2017-1000504?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.89.2 or 2.95.

Is CVE-2017-1000504 being exploited?

There is no known exploitation of CVE-2017-1000504 in the wild and no public exploit code.

All Jenkins Jenkins vulnerabilities

Sources

Also known as GHSA-99hj-ppg3-2xwc.

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