CVE-2021-42277 : Vulnerability Insights and Analysis
Learn about the Diagnostics Hub Standard Collector Elevation of Privilege vulnerability (CVE-2021-42277) affecting multiple Microsoft products. Find out the impacted systems, exploitation risks, and mitigation steps here.
A vulnerability titled Diagnostics Hub Standard Collector Elevation of Privilege has been identified by Microsoft on November 9, 2021.
Understanding CVE-2021-42277
This CVE affects multiple Microsoft products and versions.
What is CVE-2021-42277?
The Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability allows an attacker to gain elevated privileges on the affected system.
The Impact of CVE-2021-42277
The vulnerability could lead to unauthorized access and control over the compromised systems.
Technical Details of CVE-2021-42277
This section provides specific technical details of the CVE.
Vulnerability Description
The vulnerability involves an elevation of privilege exploit in the Diagnostics Hub Standard Collector.
Affected Systems and Versions
The following Microsoft products and versions are affected:
- Windows 10 Version 1809, Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Microsoft Visual Studio 2017, Microsoft Visual Studio 2019 versions 15.9, 16.7, 16.9, 16.11, and Microsoft Visual Studio 2015 Update 3.
Exploitation Mechanism
The vulnerability can be exploited by an attacker to execute arbitrary code and gain higher system privileges.
Mitigation and Prevention
Actions to mitigate the impact of CVE-2021-42277.
Immediate Steps to Take
- Apply the latest security updates provided by Microsoft.
- Monitor for any unusual system activities.
- Implement the principle of least privilege.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Conduct security audits and penetration testing periodically.
Patching and Updates
Ensure all affected systems are promptly updated with the latest patches released by Microsoft.