High severity · published Mar 2, 2023
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…
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
Enterprise Server · Github
before 3.4.15; 3.5.0 before 3.5.12; 3.6.0 before 3.6.8; 3.7.0 before 3.7.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22381
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-22381
Release Notes
https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.15
Release Notes
https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.12
Release Notes
https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.8
Release Notes
https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.5
Release Notes
https://docs.github.com/en/enterprise-server@3.8/admin/release-notes
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