CVE-2020-0636 Explained : Impact and Mitigation

Windows Subsystem for Linux Elevation of Privilege Vulnerability

Understanding CVE-2020-0636

What is CVE-2020-0636?

An elevation of privilege vulnerability exists in the way that the Windows Subsystem for Linux handles files.

The Impact of CVE-2020-0636

This vulnerability could allow an attacker to elevate their privileges on the affected system.

Technical Details of CVE-2020-0636

Vulnerability Description

The vulnerability is related to the handling of files within the Windows Subsystem for Linux.

Affected Systems and Versions

Windows 10 Version 1903 for 32-bit Systems
Windows 10 Version 1903 for x64-based Systems
Windows 10 Version 1903 for ARM64-based Systems
Windows Server, version 1903 (Server Core installation)
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows Server, version 1909 (Server Core installation)

Exploitation Mechanism

The vulnerability can be exploited by an attacker to manipulate files and gain elevated privileges.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary security updates provided by Microsoft.
Monitor for any unauthorized access or suspicious activities.

Long-Term Security Practices

Regularly review and update security configurations.
Implement the principle of least privilege to limit access rights.

Patching and Updates

Microsoft has released patches to address this vulnerability.