CVE-2020-1109 : Exploit Details and Defense Strategies

An elevation of privilege vulnerability exists when the Windows Update Stack fails to properly handle objects in memory, aka 'Windows Update Stack Elevation of Privilege Vulnerability'.

Understanding CVE-2020-1109

What is CVE-2020-1109?

This CVE refers to an elevation of privilege vulnerability in Windows Update Stack.

The Impact of CVE-2020-1109

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

Technical Details of CVE-2020-1109

Vulnerability Description

The vulnerability arises from the incorrect handling of objects in memory by the Windows Update Stack.

Affected Systems and Versions

Windows 10 Version 1803, 1809, 1709 for 32-bit, x64-based, and ARM64-based Systems
Windows Server versions 1803, 2019
Windows 10 Version 1909 for all architectures
Windows 10 Version 1903 for all architectures

Exploitation Mechanism

The vulnerability can be exploited by an attacker locally.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security updates from Microsoft.
Monitor for any suspicious activities on the system.

Long-Term Security Practices

Regularly update the system with the latest patches and security updates.
Implement the principle of least privilege to restrict user access.
Use security tools to detect and prevent privilege escalation attempts.

Patching and Updates

Ensure all affected systems are updated with the patches provided by Microsoft.