Vulnerability Details : CVE-2021-22869
An improper access control vulnerability in GitHub Enterprise Server allowed a workflow job to execute in a self-hosted runner group it should not have had access to. This affects customers using self-hosted runner groups for access control. A repository with access to one enterprise runner group could access all of the enterprise runner groups within the organization because of improper authentication checks during the request. This could cause code to be run unintentionally by the incorrect runner group. This vulnerability affected GitHub Enterprise Server versions from 3.0.0 to 3.0.15 and 3.1.0 to 3.1.7 and was fixed in 3.0.16 and 3.1.8 releases.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-22869
- cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22869
0.39%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22869
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-22869
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.Assigned by: product-cna@github.com (Secondary)
References for CVE-2021-22869
-
https://docs.github.com/en/enterprise-server@3.1/admin/release-notes#3.1.8
Release Notes;Vendor Advisory
-
https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.16
Release Notes;Vendor Advisory
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