CVE-2023-23760 : What You Need to Know

This CVE-2023-23760 pertains to a path traversal vulnerability found in GitHub Enterprise Server that could lead to remote code execution when constructing a GitHub Pages site. The vulnerability affected all versions of GitHub Enterprise Server before version 3.8 and was resolved in versions 3.7.7, 3.6.10, 3.5.14, and 3.4.17.

Understanding CVE-2023-23760

This section delves into the specifics of the CVE-2023-23760 vulnerability, its impact, technical details, affected systems, and how to mitigate and prevent exploits related to it.

What is CVE-2023-23760?

The CVE-2023-23760 vulnerability is a path traversal issue within GitHub Enterprise Server, enabling threat actors to execute remote code by creating and building a GitHub Pages site on the affected server.

The Impact of CVE-2023-23760

The impact of this vulnerability is categorized as "CAPEC-549 Local Execution of Code," with serious implications for the security and integrity of GitHub Enterprise Server instances.

Technical Details of CVE-2023-23760

Taking a closer look at the technical aspects of CVE-2023-23760 vulnerability including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allowed remote code execution through a path traversal flaw when constructing a GitHub Pages site on GitHub Enterprise Server instances. It necessitated the attacker to possess permissions for creating and building such a site within the server.

Affected Systems and Versions

GitHub Enterprise Server versions prior to 3.8 were impacted by the CVE-2023-23760 vulnerability. Notably, versions 3.7.7, 3.6.10, 3.5.14, and 3.4.17 were affected, with the issue being mitigated in subsequent updates.

Exploitation Mechanism

To exploit CVE-2023-23760, malicious actors needed the authorization to create and build a GitHub Pages site on the vulnerable GitHub Enterprise Server instance.

Mitigation and Prevention

This section outlines the steps to mitigate the risks associated with CVE-2023-23760, including immediate actions and long-term security practices.

Immediate Steps to Take

Immediate actions include updating GitHub Enterprise Server to version 3.8 or higher to safeguard against the path traversal vulnerability leading to remote code execution.

Long-Term Security Practices

In the long term, organizations should ensure timely security patches and updates to eliminate vulnerabilities and maintain a robust security posture.

Patching and Updates

Regularly applying patches and updates, particularly those addressing critical vulnerabilities like CVE-2023-23760, is crucial for enhancing the security of GitHub Enterprise Server instances.