CVE-2021-22864

published 2021-03-23

CVE-2021-22864: A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled…

Priority P2 60 high 8.8 CVSS 3.1

AV N AC L PR L UI N S U C H I H A H

A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to override environment variables leading to code execution on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
github	enterprise_server	>= 2.21.0 < 2.21.17	2.21.17
github	enterprise_server	>= 2.22.0 < 2.22.9	2.22.9
github	enterprise_server	>= 3.0.0 < 3.0.3	3.0.3
github	github_enterprise_server	>= 2.21 < 2.21.17	2.21.17
github	github_enterprise_server	>= 2.22 < 2.22.9	2.22.9
github	github_enterprise_server	>= 3.0 < 3.0.3	3.0.3

CVSS provenance

nvd v3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.5 MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P

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CWE-77