CVE-2023-21747 : Vulnerability Insights and Analysis

This CVE-2023-21747 relates to a Windows Kernel Elevation of Privilege Vulnerability identified in Microsoft products.

Understanding CVE-2023-21747

The CVE-2023-21747 is a vulnerability in the Windows Kernel that allows threat actors to elevate privileges on affected systems.

What is CVE-2023-21747?

The CVE-2023-21747 vulnerability is classified as an Elevation of Privilege issue, which means that attackers could potentially gain higher privileges on the targeted system.

The Impact of CVE-2023-21747

This vulnerability has a base severity rating of HIGH with a CVSS V3.1 base score of 7.8. It poses a significant risk to affected Microsoft products.

Technical Details of CVE-2023-21747

The vulnerability affects various Microsoft products including Windows 10, Windows Server versions, Windows 11, and more. Below are some technical details:

Vulnerability Description

The issue stems from a flaw in the Windows Kernel that enables unauthorized users to escalate their privileges.

Affected Systems and Versions

Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows 10 Version 20H2
Windows 11 version 21H2
Windows 10 Version 21H2
Windows 11 version 22H2
Windows 10 Version 22H2
Windows 10 Version 1507
Windows 10 Version 1607
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows 7
Windows 7 Service Pack 1
Windows 8.1
Windows Server 2008 Service Pack 2
Windows Server 2008 Service Pack 2 (Server Core installation)
Windows Server 2008 Service Pack 2
Windows Server 2008 R2 Service Pack 1
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

Exploitation Mechanism

Threat actors can exploit this vulnerability through specially crafted attacks to gain higher privileges than intended.

Mitigation and Prevention

It is crucial for organizations and users to take immediate steps to address this vulnerability to prevent potential exploitation.

Immediate Steps to Take

Apply security patches provided by Microsoft.
Implement security best practices to mitigate risks on affected systems.

Long-Term Security Practices

Regularly update systems with the latest security patches. Monitor security advisories from Microsoft and other trusted sources.

Patching and Updates

Ensure that all affected systems are patched with the latest updates to address the Windows Kernel Elevation of Privilege Vulnerability.