Riskcovery

CVE-2021-22864

Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server

State
Published
Severity
Not scored
Published
Mar 23, 2021
Updated
Aug 3, 2024
Reserved
Jan 6, 2021

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

  • CWE-77 Command Injection - Generic

Affected Products

ProductVersions
GitHub Enterprise ServerGitHub
  • 2.21 to before 2.21.17Affected
  • 2.22 to before 2.22.9Affected
  • 3.0 to before 3.0.3Affected

References

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