ID CVE-2021-22865
Summary An improper access control vulnerability was identified in GitHub Enterprise Server that allowed access tokens generated from a GitHub App's 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.
References
Vulnerable Configurations
  • cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
    cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
CVSS
Base: 4.3 (as of 08-04-2021 - 03:19)
Impact:
Exploitability:
CWE CWE-863
CAPEC
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
cvss-vector via4 AV:N/AC:M/Au:N/C:P/I:N/A:N
Last major update 08-04-2021 - 03:19
Published 02-04-2021 - 18:15
Last modified 08-04-2021 - 03:19
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