An improper access control vulnerability was identified in the GitHub Enterprise Server GraphQL API that allowed authenticated users of the instance to modify the maintainer collaboration permission of a pull request without proper authorization. By exploiting this vulnerability, an attacker would be able to gain access to head branches of pull requests opened on repositories of which they are a maintainer. Forking is disabled by default for organization owned private repositories and would prevent this vulnerability. Additionally, branch protections such as required pull request reviews or status checks would prevent unauthorized commits from being merged without further review or validation. This vulnerability affected all versions of GitHub Enterprise Server since 2.12.22 and was fixed in versions 2.20.24, 2.21.15, 2.22.7 and 3.0.1. This vulnerability was reported via the GitHub Bug Bounty program.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_P
Published: 2021-03-03T03:25:23
Updated: 2024-08-03T18:51:07.572Z
Reserved: 2021-01-06T00:00:00
Link: CVE-2021-22863
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-03-03T04:15:13.240
Modified: 2024-11-21T05:50:47.360
Link: CVE-2021-22863
Redhat
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