CVE-2020-0918 : Security Advisory and Response

Windows Hyper-V Elevation of Privilege Vulnerability

Understanding CVE-2020-0918

What is CVE-2020-0918?

An elevation of privilege vulnerability in Windows Hyper-V occurs due to improper object handling in memory.

The Impact of CVE-2020-0918

This vulnerability could allow an attacker to elevate privileges on the host server.

Technical Details of CVE-2020-0918

Vulnerability Description

The flaw is related to Windows Hyper-V and results in an elevation of privilege issue.

Affected Systems and Versions

Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Core installation)
Windows 10 Version 1909 for x64-based Systems
Windows Server, version 1909 (Server Core installation)
Windows 10 Version 1903 for x64-based Systems
Windows Server, version 1903 (Server Core installation)

Exploitation Mechanism

The vulnerability arises from a failure to properly handle objects in memory in Windows Hyper-V.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by Microsoft.
Monitor for any unauthorized system changes.
Consider disabling Hyper-V if not required.

Long-Term Security Practices

Regularly update and patch all systems.
Implement the principle of least privilege.
Conduct security training for users to enhance awareness.

Patching and Updates

Stay informed about security updates from Microsoft to apply patches promptly.