CVE-2023-27903
First published: Wed Mar 08 2023(Updated: )
Jenkins 2.393 and earlier, LTS 2.375.3 and earlier creates a temporary file in the default temporary directory with the default permissions for newly created files when uploading a file parameter through the CLI, potentially allowing attackers with access to the Jenkins controller file system to read and write the file before it is used.
Credit: jenkinsci-cert@googlegroups.com jenkinsci-cert@googlegroups.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <2.375.4 | ||
| <2.394 | ||
| Jenkins Jenkins | <2.375.4 | |
| Jenkins Jenkins | <2.394 | |
| maven/org.jenkins-ci.main:jenkins-core | >=2.388<2.394 | 2.394 |
| maven/org.jenkins-ci.main:jenkins-core | >=2.376<2.387.1 | 2.387.1 |
| maven/org.jenkins-ci.main:jenkins-core | <2.375.4 | 2.375.4 |
| redhat/Jenkins | <2.394 | 2.394 |
| redhat/LTS | <2.375.4 | 2.375.4 |
| redhat/LTS | <2.387.1 | 2.387.1 |
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Reference Links
- https://www.jenkins.io/security/advisory/2023-03-08/#SECURITY-3058
- https://nvd.nist.gov/vuln/detail/CVE-2023-27903
- https://github.com/CVEProject/cvelist/blob/master/2023/27xxx/CVE-2023-27903.json
- https://github.com/jenkinsci/jenkins/commit/554587b06db553ce35fa362d7a0b0aef33a57afb
- https://github.com/advisories/GHSA-584m-7r4m-8j6v (Advisory)
- https://access.redhat.com/errata/RHSA-2023:1655
- https://access.redhat.com/security/cve/cve-2023-27903
- https://access.redhat.com/errata/RHSA-2023:3195
- https://access.redhat.com/errata/RHSA-2023:3198
- https://access.redhat.com/errata/RHSA-2023:3622
- https://access.redhat.com/errata/RHSA-2023:3663
- https://access.redhat.com/errata/RHSA-2024:0778
- https://access.redhat.com/errata/RHSA-2024:0775
- https://bugzilla.redhat.com/show_bug.cgi?id=2177632
Frequently Asked Questions
What is the vulnerability ID of this Jenkins vulnerability?
The vulnerability ID is CVE-2023-27903.
What is the severity rating of CVE-2023-27903?
The severity rating of CVE-2023-27903 is medium with a value of 4.4.
How can an attacker exploit CVE-2023-27903?
An attacker with access to the Jenkins controller file system can exploit CVE-2023-27903 by reading temporary files created with default permissions.
How can I fix CVE-2023-27903?
To fix CVE-2023-27903, update Jenkins to version 2.394 or later, or LTS to version 2.375.4 or later.
Where can I find more information about CVE-2023-27903?
You can find more information about CVE-2023-27903 in the Jenkins security advisory at https://www.jenkins.io/security/advisory/2023-03-08/#SECURITY-3058 and the Red Hat Security Advisory at https://access.redhat.com/errata/RHSA-2023:1655.
- collector/nvd-index
- collector/mitre-cve
- collector/github-advisory-latest
- alias/GHSA-584m-7r4m-8j6v
- alias/CVE-2023-27903
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- vendor/jenkins
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- package-manager/maven
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