CVE-2014-2064 Jenkins allows attackers to determine whether a user exists

What is CVE-2014-2064?

CVE-2014-2064 is a medium-severity vulnerability in Jenkins Jenkins, published on 17 Oct 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The loadUserByUsername function in hudson/security/HudsonPrivateSecurityRealm.java in Jenkins before 1.551 and LTS before 1.532.2 allows remote attackers to determine whether a user exists via vectors related to failed login attempts.

Weakness: CWE-200

Which versions are affected by CVE-2014-2064?

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

Products include Jenkins Jenkins.

How do I fix CVE-2014-2064?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 1.532.2 or 1.551.

Is CVE-2014-2064 being exploited?

There is no known exploitation of CVE-2014-2064 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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-9vg9-x38g-9hfx.