CVE-2020-2161: XSS
First published: Wed Mar 25 2020(Updated: )
Jenkins 2.227 and earlier, LTS 2.204.5 and earlier does not properly escape node labels that are shown in the form validation for label expressions on job configuration pages, resulting in a stored XSS vulnerability exploitable by users able to define node labels.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.jenkins-ci.main:jenkins-core | >2.222.1<=2.227 | 2.228 |
| maven/org.jenkins-ci.main:jenkins-core | <=2.204.5 | 2.204.6 |
| Jenkins | <=2.204.5 | |
| Jenkins | <=2.227 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://www.openwall.com/lists/oss-security/2020/03/25/2
- https://jenkins.io/security/advisory/2020-03-25/#SECURITY-1781
- https://nvd.nist.gov/vuln/detail/CVE-2020-2161
- https://github.com/jenkinsci/jenkins/commit/dbff6fdcf8c4bc00729ace66c33208ae7aa18ac0
- https://github.com/advisories/GHSA-g8pg-qrvm-wgh2 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2020-2161?
CVE-2020-2161 is classified as a medium severity stored XSS vulnerability.
How do I fix CVE-2020-2161?
To fix CVE-2020-2161, upgrade Jenkins to version 2.228 or later or LTS version 2.204.6 or later.
Who is affected by CVE-2020-2161?
CVE-2020-2161 affects Jenkins versions 2.227 and earlier, as well as LTS versions 2.204.5 and earlier.
What type of vulnerability is CVE-2020-2161?
CVE-2020-2161 is a stored Cross-Site Scripting (XSS) vulnerability.
Can CVE-2020-2161 be exploited remotely?
Yes, CVE-2020-2161 can be exploited remotely by users who have permission to define node labels.
- collector/github-advisory-latest
- alias/GHSA-g8pg-qrvm-wgh2
- alias/CVE-2020-2161
- collector/github-advisory
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/references
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/description
- agent/first-publish-date
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-cve
- collector/nvd-index
- package-manager/maven
- vendor/jenkins
- canonical/jenkins
- version/jenkins/2.204.5
- version/jenkins/2.227