CVE-2024-21305 : What You Need to Know

This CVE-2024-21305 relates to a Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability in Microsoft products.

Understanding CVE-2024-21305

This vulnerability impacts various Microsoft products, allowing a security feature bypass.

What is CVE-2024-21305?

The Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability in Microsoft products refers to a security issue where the HVCI security feature can be bypassed, potentially compromising the integrity of the system.

The Impact of CVE-2024-21305

The impact of this vulnerability is rated as MEDIUM based on the CVSS v.3.1 scoring system. The base score is 4.4, highlighting the severity of the issue. The vulnerability could allow attackers to bypass security features and potentially gain unauthorized access or control over affected systems.

Technical Details of CVE-2024-21305

This section will provide detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows for a bypass of the HVCI security feature, posing a risk to the integrity of affected systems.

Affected Systems and Versions

The following Microsoft products and versions are affected:

Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows 11 version 21H2
Windows 10 Version 21H2
Windows 11 version 22H2
Windows 10 Version 22H2
Windows 11 version 22H3
Windows 11 Version 23H2
Windows Server 2022, 23H2 Edition (Server Core installation)

Exploitation Mechanism

The vulnerability can be exploited by leveraging the HVCI feature bypass, potentially leading to unauthorized system access.

Mitigation and Prevention

To address CVE-2024-21305, certain steps can be taken to mitigate the risk and prevent exploitation.

Immediate Steps to Take

Apply security updates provided by Microsoft to address the vulnerability.
Implement additional security measures to enhance system protection.

Long-Term Security Practices

Regularly update systems and software to ensure they are protected against known vulnerabilities.
Follow best practices for system security to prevent unauthorized access and data compromise.

Patching and Updates

Microsoft has released patches to address the vulnerability. It is crucial to promptly install these updates to secure the affected systems and prevent potential exploitation.