CVE-2020-2109: Input Validation
First published: Wed Feb 12 2020(Updated: )
Sandbox protection in Jenkins Pipeline: Groovy Plugin 2.78 and earlier can be circumvented through default parameter expressions in CPS-transformed methods.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jenkins Pipeline\ | <=2.78 | |
| maven/org.jenkins-ci.plugins.workflow:workflow-cps | <=2.78 | 2.79 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-2109
- https://jenkins.io/security/advisory/2020-02-12/#SECURITY-1710
- http://www.openwall.com/lists/oss-security/2020/02/12/3
- https://github.com/jenkinsci/workflow-cps-plugin/commit/41cb4e05eed6a901d0c8a8b0a460111a64c5e179
- https://github.com/jenkinsci/workflow-cps-plugin/commit/90b7f403882e1cab1dec49a011e377f440f8e003
- https://github.com/advisories/GHSA-99mf-f3qh-wqrp (Advisory)
Frequently Asked Questions
What is the severity of CVE-2020-2109?
CVE-2020-2109 is classified as a medium severity vulnerability.
How do I fix CVE-2020-2109?
To fix CVE-2020-2109, upgrade the Groovy Plugin in Jenkins Pipeline to version 2.79 or later.
What impact does CVE-2020-2109 have on Jenkins users?
CVE-2020-2109 allows circumvention of sandbox protection in Jenkins Pipeline, potentially leading to unauthorized code execution.
Which versions of Jenkins are affected by CVE-2020-2109?
Jenkins Pipeline: Groovy Plugin versions up to and including 2.78 are affected by CVE-2020-2109.
Why is it important to address CVE-2020-2109?
Addressing CVE-2020-2109 is important to maintain security and prevent attackers from exploiting the sandbox bypass.
- collector/nvd-index
- collector/nvd-api
- collector/github-advisory-latest
- alias/GHSA-99mf-f3qh-wqrp
- alias/CVE-2020-2109
- collector/nvd-cve
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/weakness
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- agent/softwarecombine
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- agent/trending
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- vendor/jenkins
- canonical/jenkins pipeline\
- version/jenkins pipeline\/2.78
- package-manager/maven