RCE in GitHub Enterprise Server
CVE-2023-22381
A code injection vulnerability was identified in GitHub Enterprise Server that allowed setting arbitrary environment variables from a single environment variable value in GitHub Actions when using a Windows based runner. To exploit this vulnerability, an attacker would need existing permission to control the value of environment variables for use with GitHub Actions. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.8.0 and was fixed in versions 3.4.15, 3.5.12, 3.6.8, 3.7.5. This vulnerability was reported via the GitHub Bug Bounty program.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- GitHub Enterprise Server — versions 3.4.0, 3.5.0, 3.6.0
- GitHub Enterprise Server
Weakness classification (CWE)
References
- docs.github.com/en/enterprise-server@3.7/admin/release-notes (Release Notes)
- docs.github.com/en/enterprise-server@3.6/admin/release-notes (Release Notes)
- docs.github.com/en/enterprise-server@3.5/admin/release-notes (Release Notes)
- docs.github.com/en/enterprise-server@3.4/admin/release-notes (Release Notes)
- docs.github.com/en/enterprise-server@3.8/admin/release-notes (Release Notes)
Frequently asked questions
- What is CVE-2023-22381?
- CVE-2023-22381 is a medium-severity vulnerability in GitHub Enterprise Server, classified under Code Injection. CVSS score: 4.1/10. Published 2023-03-02.
- How severe is CVE-2023-22381?
- Medium severity. CVSS v3 base score is 4.1 out of 10.