CVE-2021-22864

Katalog CVE

CVSS 8.8 · High EPSS 2,6%

Kerentanan Improper Neutralization of Special Elements used in a Command ('Command Injection') pada github enterprise server. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

23 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

EPSS (30 hari)

2,6% peluang dieksploitasi; lebih tinggi dari 84,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.17
• https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.9
• https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.3