CVE-2023-43498
First published: Wed Sep 20 2023(Updated: )
In Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, processing file uploads using MultipartFormDataParser creates temporary files in the default system temporary directory with the default permissions for newly created files, potentially allowing attackers with access to the Jenkins controller file system to read and write the files before they are used.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jenkins Jenkins | <2.414.2 | |
| Jenkins Jenkins | <2.424 | |
| maven/org.jenkins-ci.main:jenkins-core | >=2.415<2.424 | 2.424 |
| maven/org.jenkins-ci.main:jenkins-core | >=2.50<2.414.2 | 2.414.2 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2023/09/20/5
- https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3073
- https://nvd.nist.gov/vuln/detail/CVE-2023-43498
- https://github.com/advisories/GHSA-hq87-h4jg-vxfw (Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/266556
- https://www.ibm.com/support/pages/node/7096365 (Advisory)
Frequently Asked Questions
What is CVE-2023-43498?
CVE-2023-43498 is a vulnerability in Jenkins 2.423 and earlier, LTS 2.414.1 and earlier, where uploaded files processed via the Stapler web framework and the Jenkins API MultipartFormDataParser create temporary files in the system temporary directory with default permissions for newly created files.
What is the severity of CVE-2023-43498?
The severity of CVE-2023-43498 is high, with a CVSSv3 score of 8.1.
How does CVE-2023-43498 affect Jenkins?
CVE-2023-43498 affects Jenkins versions 2.423 and earlier, LTS 2.414.1 and earlier.
How can I fix CVE-2023-43498?
To fix CVE-2023-43498, upgrade to Jenkins 2.424 or later, or LTS 2.414.2 or later.
Where can I find more information about CVE-2023-43498?
You can find more information about CVE-2023-43498 at the following references: [1] http://www.openwall.com/lists/oss-security/2023/09/20/5, [2] https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3073, [3] https://nvd.nist.gov/vuln/detail/CVE-2023-43498
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