CVE-2023-46648 : Security Advisory and Response
Discover how CVE-2023-46648 impacted GitHub Enterprise Server, the technical details, affected versions, mitigation steps, and the importance of patching and updates to enhance security.
A detailed analysis of the CVE-2023-46648 vulnerability affecting GitHub Enterprise Server.
Understanding CVE-2023-46648
This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2023-46648.
What is CVE-2023-46648?
CVE-2023-46648 refers to an insufficient entropy vulnerability discovered in GitHub Enterprise Server (GHES) that enabled attackers to brute force a user invitation to the GHES Management Console. This vulnerability required prior knowledge of a pending user invitation and affected all versions of GitHub Enterprise Server starting from version 3.8.
The Impact of CVE-2023-46648
The vulnerability, reported via the GitHub Bug Bounty program, had a significant impact on the confidentiality, integrity, and availability of the affected systems. It was classified under CAPEC-112 Brute Force category.
Technical Details of CVE-2023-46648
In-depth information regarding the vulnerability, affected systems, and exploitation methods.
Vulnerability Description
The insufficient entropy vulnerability in GitHub Enterprise Server allowed threat actors to brute force access to the GHES Management Console by exploiting user invitation tokens. The affected versions were 3.8.0, 3.9.0, 3.10.0, and 3.11.0, with the issue being resolved in versions 3.8.12, 3.9.7, 3.10.4, and 3.11.1.
Affected Systems and Versions
GitHub Enterprise Server versions 3.8 to 3.11 were impacted by this vulnerability.
Exploitation Mechanism
Attackers with knowledge of a pending user invitation could leverage the insufficient entropy vulnerability to brute force their way into the GHES Management Console.
Mitigation and Prevention
Measures to address the CVE-2023-46648 vulnerability and enhance system security.
Immediate Steps to Take
Users are advised to update their GitHub Enterprise Server installations to versions 3.8.12, 3.9.7, 3.10.4, or 3.11.1 to mitigate the risk associated with the insufficient entropy vulnerability.
Long-Term Security Practices
Implementing strong access controls, regular security audits, and employee training on cyber hygiene can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly applying security patches and updates released by GitHub is crucial to maintaining a secure GitHub Enterprise Server environment.