CVE-2018-1000193 Injection in Jenkins

What is CVE-2018-1000193?

CVE-2018-1000193 is a medium-severity vulnerability in Jenkins Jenkins, published on 5 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A improper neutralization of control sequences vulnerability exists in Jenkins 2.120 and older, LTS 2.107.2 and older in HudsonPrivateSecurityRealm.java that allows users to sign up using user names containing control characters that can then appear to have the same name as other users, and cannot be deleted via the UI.

Weakness: CWE-74

Which versions are affected by CVE-2018-1000193?

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

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

How do I fix CVE-2018-1000193?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.107.3 or 2.121.

Is CVE-2018-1000193 being exploited?

There is no known exploitation of CVE-2018-1000193 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-7592-93rm-6gpx.