PT-2023-19187 · Github · Github Enterprise Server

Published 2023-04-07 · Updated 2023-04-13 · CVE-2023-23762

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N

Name of the Vulnerable Software and Affected Versions GitHub Enterprise Server versions prior to 3.9

Description An incorrect comparison issue was identified in GitHub Enterprise Server, allowing commit smuggling by displaying an incorrect diff. An attacker would need write access to the repository and correctly guess the target branch before it's created by the code maintainer.

Recommendations For versions prior to 3.4.18, update to version 3.4.18. For versions prior to 3.5.15, update to version 3.5.15. For versions prior to 3.6.11, update to version 3.6.11. For versions prior to 3.7.8, update to version 3.7.8. For versions prior to 3.8.1, update to version 3.8.1. As a temporary workaround, consider restricting write access to the repository to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-697

Related Identifiers

CVE-2023-23762

Affected Products

Github Enterprise Server

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2023-23762 · Security Note
• https://osv.dev/vulnerability/CVE-2023-23762 · Vendor Advisory
• https://t.me/cibsecurity/61699 · Telegram Post
• https://docs.github.com/en/enterprise-server@3.4/admin/release-notes#3.4.18 · Note
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.8 · Note
• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.1 · Note
• https://docs.github.com/en/enterprise-server@3.5/admin/release-notes#3.5.15 · Note
• https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.11 · Note