CVE-2021-22865

Description

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed access tokens generated from a GitHub Apps web authentication flow to read private repository metadata via the REST API without having been granted the appropriate permissions. To exploit this vulnerability, an attacker would need to create a GitHub App on the instance and have a user authorize the application through the web authentication flow. The private repository metadata returned would be limited to repositories owned by the user the token identifies. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.0.4 and was fixed in versions 3.0.4, 2.22.10, 2.21.18. This vulnerability was reported via the GitHub Bug Bounty program.

Risk Information

Base Score

6.5

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Score

Exploitation Probability

0.226

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-22865 are affected in GitHub Enterprise Server 2.21.17	Windows
Vulnerabilities CVE-2021-22865 are affected in GitHub Enterprise Server 2.22.9	Windows
Vulnerabilities CVE-2021-22865 are affected in GitHub Enterprise Server 3.0.3	Windows

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234