CVE-2023-51379 : Exploit Details and Defense Strategies

A detailed overview of the CVE-2023-51379 vulnerability affecting GitHub Enterprise Server, including its impact, technical details, and mitigation strategies.

Understanding CVE-2023-51379

This section delves into the specifics of the Incorrect Authorization vulnerability in GitHub Enterprise Server.

What is CVE-2023-51379?

An Incorrect Authorization vulnerability in GitHub Enterprise Server allowed issue comments to be updated with an improperly scoped token, affecting versions 3.7 to 3.11.1.

The Impact of CVE-2023-51379

The vulnerability did not grant unauthorized access to repository content but required specific permissions. Authentication Abuse (CAPEC-114) was a potential impact.

Technical Details of CVE-2023-51379

Explore the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The flaw in GitHub Enterprise Server allowed updating issue comments with an incorrectly scoped token.

Affected Systems and Versions

Versions 3.7 to 3.11.1 of GitHub Enterprise Server were affected, with specific patch versions highlighted.

Exploitation Mechanism

The vulnerability required contents:write and issues:read permissions but did not lead to unauthorized access to repository content.

Mitigation and Prevention

Discover immediate steps to take and long-term security practices to mitigate the CVE-2023-51379 vulnerability in GitHub Enterprise Server.

Immediate Steps to Take

Users should ensure their systems are updated to the patched versions as provided by GitHub.

Long-Term Security Practices

Enforcing proper authorization mechanisms and monitoring access permissions can enhance system security.

Patching and Updates

Regularly updating GitHub Enterprise Server to the latest versions can prevent exploitation of known vulnerabilities.