CVE-2023-46645 : What You Need to Know
Learn about CVE-2023-46645, a path traversal vulnerability in GitHub Enterprise Server allowing arbitrary file reading during GitHub Pages site building. Understand its impact, affected versions, and mitigation steps.
A path traversal vulnerability in GitHub Enterprise Server allowed arbitrary file reading during GitHub Pages site building.
Understanding CVE-2023-46645
The CVE-2023-46645 vulnerability involves a path traversal issue in GitHub Enterprise Server that enables unauthorized file access when constructing a GitHub Pages site.
What is CVE-2023-46645?
The CVE-2023-46645 vulnerability is a path traversal flaw in GitHub Enterprise Server. Attackers with specified permissions can exploit this to read arbitrary files during GitHub Pages site creation.
The Impact of CVE-2023-46645
The impact of CVE-2023-46645, classified as CAPEC-126 Path Traversal, can lead to unauthorized access to sensitive information, compromising data confidentiality on affected GitHub Enterprise Server instances.
Technical Details of CVE-2023-46645
This section delves into the specifics of CVE-2023-46645, including the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability allowed arbitrary file reading during GitHub Pages site building in GitHub Enterprise Server versions 3.7 to 3.11.1. It was reported through the GitHub Bug Bounty program.
Affected Systems and Versions
GitHub Enterprise Server versions 3.7.0 to 3.11.0 were affected. The issue was addressed in versions 3.7.19, 3.8.12, 3.9.7, 3.10.4, and 3.11.1.
Exploitation Mechanism
To exploit CVE-2023-46645, an attacker needed permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance.
Mitigation and Prevention
In this section, we outline steps to mitigate and prevent the exploitation of CVE-2023-46645, focusing on immediate actions and long-term security practices.
Immediate Steps to Take
Immediately upgrade affected GitHub Enterprise Server instances to the patched versions - 3.7.19, 3.8.12, 3.9.7, 3.10.4, or 3.11.1. Review access controls to limit GitHub Pages site creation permissions.
Long-Term Security Practices
Implement robust access controls, monitor GitHub Pages site creation activities, and regularly update GitHub Enterprise Server to mitigate future vulnerabilities.
Patching and Updates
Stay informed about GitHub Enterprise Server updates and promptly apply patches to address known security vulnerabilities.