CVE-2015-5320 Jenkins allows Exposure of Sensitive Information to an Unauthorized Actor

What is CVE-2015-5320?

CVE-2015-5320 is a medium-severity authentication bypass vulnerability in Jenkins Jenkins, published on 25 Nov 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jenkins before 1.638 and LTS before 1.625.2 do not properly verify the shared secret used in JNLP slave connections, which allows remote attackers to connect as slaves and obtain sensitive information or possibly gain administrative access by leveraging knowledge of the name of a slave.

Weakness: CWE-200

Which versions are affected by CVE-2015-5320?

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

Products include Jenkins Jenkins, Redhat Openshift.

How do I fix CVE-2015-5320?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 1.625.2 or 1.638.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2015-5320 being exploited?

There is no known exploitation of CVE-2015-5320 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Jenkins

• CVE-2024-23897 Jenkins Command Line Interface (CLI) Path Traversal Exploited Critical 9.8
• CVE-2018-1000861 Jenkins Stapler Web Framework Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2017-1000353 Jenkins Remote Code Execution Exploited Critical 9.8
• CVE-2015-5317 Jenkins User Interface (UI) Information Disclosure Exploited High 7.5
• CVE-2021-21690 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins Critical 9.8

All Jenkins Jenkins vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-449q-v4j2-5h8p.