CVE-2018-1000068 Exposure of Sensitive Information to an Unauthorized Actor in Jenkins

Medium 5.3 Published Updated

Attackers can access restricted plugin resource files in Jenkins if the home directory uses a case-insensitive file system.

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

What is CVE-2018-1000068?

CVE-2018-1000068 is a medium-severity path traversal vulnerability in Jenkins Jenkins, published on 16 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An improper input validation vulnerability exists in Jenkins versions 2.106 and earlier, and LTS 2.89.3 and earlier, that allows an attacker to access plugin resource files in the META-INF and WEB-INF directories that should not be accessible, if the Jenkins home directory is on a case-insensitive file system.

Weakness: CWE-200

Which versions are affected by CVE-2018-1000068?

4 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core. It affects 2 products.

PackageAffectedFixed in
org.jenkins-ci.main:jenkins-core MavenAll versions2.89.4
org.jenkins-ci.main:jenkins-core MavenAll versions2.89.4
org.jenkins-ci.main:jenkins-core MavenFrom 2.902.107
org.jenkins-ci.main:jenkins-core MavenFrom 2.902.107

Products include Jenkins Jenkins, Oracle Communications Cloud Native Core Automated Test Suite.

How do I fix CVE-2018-1000068?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.89.4 or 2.107.

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

Is CVE-2018-1000068 being exploited?

There is no known exploitation of CVE-2018-1000068 in the wild and no public exploit code.

All Jenkins Jenkins vulnerabilities

Sources

Also known as CVE-2018-1000103, GHSA-x6jw-2f23-mc5j.

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