CVE-2021-22864Not scoredCWE-77

CVE-2021-22864: Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server

GitHub · GitHub Enterprise Server

Vendor fix available · Affected: GitHub Enterprise Server · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.5%probability of exploitation in the next 30 days

85th percentile

050100

Higher than 85% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

GitHub · GitHub Enterprise Serverfrom 2.21 before 2.21.17; from 2.22 before 2.22.9; from 3.0 before 3.0.3

On the Atlas

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Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Command Injection · Command and Code Injection
Vendor: GitHub
Published: March 2021
Band: Possible (1 to 10%), March 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-22864 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.