// For flags

CVE-2023-22381

Code injection in GitHub Enterprise Server leading to arbitrary environment variables in GitHub Actions

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: RyotaK
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-12-20 CVE Reserved
  • 2023-03-02 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-10-21 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
  • CAPEC-77: Manipulating User-Controlled Variables
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 < 3.4.15
Search vendor "Github" for product "Enterprise Server" and version " < 3.4.15"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.5.0 < 3.5.12
Search vendor "Github" for product "Enterprise Server" and version " >= 3.5.0 < 3.5.12"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.6.0 < 3.6.8
Search vendor "Github" for product "Enterprise Server" and version " >= 3.6.0 < 3.6.8"
-
Affected
Github
Search vendor "Github"
 Enterprise Server
Search vendor "Github" for product "Enterprise Server"
 >= 3.7.0 < 3.7.5
Search vendor "Github" for product "Enterprise Server" and version " >= 3.7.0 < 3.7.5"
-
Affected