An improper access control vulnerability was identified in GitHub Enterprise Server that allowed authenticated users of the instance to gain write access to unauthorized repositories via specifically crafted pull requests and REST API requests. An attacker would need to be able to fork the targeted repository, a setting that is disabled by default for organization owned private repositories. 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 2.4.21 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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_P

Published: 2021-03-03T03:25:21

Updated: 2024-08-03T18:51:07.561Z

Reserved: 2021-01-06T00:00:00

Link: CVE-2021-22861

cve-icon Vulnrichment

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cve-icon NVD

Status : Modified

Published: 2021-03-03T04:15:13.070

Modified: 2024-11-21T05:50:47.123

Link: CVE-2021-22861

cve-icon Redhat

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