CVE-2019-0635 : What You Need to Know

A vulnerability related to the disclosure of information has been identified in the Windows Hyper-V software. This vulnerability occurs when the host operating system fails to accurately assess input received from an authorized user on a guest operating system. It is also known as the 'Windows Hyper-V Information Disclosure Vulnerability'.

Understanding CVE-2019-0635

This CVE-2019-0635 vulnerability is related to information disclosure in Windows Hyper-V.

What is CVE-2019-0635?

An information disclosure vulnerability in Windows Hyper-V occurs when the host OS fails to properly validate input from an authenticated user on a guest OS.

The Impact of CVE-2019-0635

The vulnerability can lead to unauthorized access to sensitive information stored on the host system.

Technical Details of CVE-2019-0635

This section provides technical details of the CVE-2019-0635 vulnerability.

Vulnerability Description

The vulnerability allows an authenticated user on a guest OS to disclose information from the host OS.

Affected Systems and Versions

Windows:
Windows 7 for x64-based Systems Service Pack 1
Windows 8.1 for x64-based systems
Windows 10 for x64-based Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1703 for x64-based Systems
Windows 10 Version 1709 for x64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server:
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2012
Windows Server 2012 (Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Core installation)
Windows Server 2016
Windows Server 2016 (Core installation)
Windows Server version 1709 (Core Installation)
Windows Server version 1803 (Core Installation)
Windows Server 2019
Windows Server 2019 (Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Core installation)

Exploitation Mechanism

An authenticated user on a guest OS can exploit this vulnerability to access sensitive information on the host OS.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2019-0635 vulnerability.

Immediate Steps to Take

Apply security updates provided by Microsoft for affected systems and versions.
Implement strict access controls to limit user privileges.

Long-Term Security Practices

Regularly update and patch systems to address security vulnerabilities.
Conduct security training for users to raise awareness of information security best practices.

Patching and Updates

Install the latest security patches and updates released by Microsoft to fix the information disclosure vulnerability.