CVE-2018-1000997 Improper Limitation of a Pathname to a Restricted Directory in Jenkins
Attackers can exploit a path traversal flaw in Jenkins to render internal objects and expose sensitive information via unintended views.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1000997?
CVE-2018-1000997 is a medium-severity path traversal vulnerability in Jenkins Jenkins, published on 23 Jan 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A path traversal vulnerability exists in the Stapler web framework used by Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/org/kohsuke/stapler/Facet.java, groovy/src/main/java/org/kohsuke/stapler/jelly/groovy/GroovyFacet.java, jelly/src/main/java/org/kohsuke/stapler/jelly/JellyFacet.java, jruby/src/main/java/org/kohsuke/stapler/jelly/jruby/JRubyFacet.java, jsp/src/main/java/org/kohsuke/stapler/jsp/JSPFacet.java that allows attackers to render routable objects using any view in Jenkins, exposing internal information about those objects not intended to be viewed, such as their toString() representation.
Weakness: CWE-22
Which versions are affected by CVE-2018-1000997?
6 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core and org.kohsuke.stapler:stapler-parent. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.jenkins-ci.main:jenkins-core Maven | All versions | 2.138.2 |
org.jenkins-ci.main:jenkins-core Maven | All versions | 2.138.2 |
org.jenkins-ci.main:jenkins-core Maven | From 2.140 | 2.146 |
org.jenkins-ci.main:jenkins-core Maven | From 2.140 | 2.146 |
org.kohsuke.stapler:stapler-parent Maven | All versions | 1.250.2 |
org.kohsuke.stapler:stapler-parent Maven | All versions | 1.250.2 |
Products include Jenkins Jenkins.
How do I fix CVE-2018-1000997?
Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.138.2 or 2.146.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-1000997 being exploited?
There is no known exploitation of CVE-2018-1000997 in the wild and no public exploit code.
Other vulnerabilities in Jenkins Jenkins
- CVE-2024-23897 Jenkins Command Line Interface (CLI) Path Traversal
- CVE-2018-1000861 Jenkins Stapler Web Framework Deserialization of Untrusted Data
- CVE-2017-1000353 Jenkins Remote Code Execution
- CVE-2015-5317 Jenkins User Interface (UI) Information Disclosure
- CVE-2021-21690 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
Sources
Also known as GHSA-5hfp-964w-5vgm.