CVE-2020-1254 : Exploit Details and Defense Strategies

An elevation of privilege vulnerability in Windows Modules Installer Service allows a locally-authenticated attacker to execute arbitrary code with elevated system privileges.

Understanding CVE-2020-1254

What is CVE-2020-1254?

This CVE identifies an elevation of privilege vulnerability in Windows Modules Installer Service.

The Impact of CVE-2020-1254

The vulnerability could be exploited by a locally authenticated attacker to execute arbitrary code with elevated system privileges.

Technical Details of CVE-2020-1254

Vulnerability Description

The vulnerability arises due to improper handling of class object members in Windows Modules Installer Service.

Affected Systems and Versions

Windows 10 Versions 1803, 1809, 1709, 1607, 10, 8.1, and 7
Windows Server versions 2019, 2016, 2012, 2008, and 2008 R2
Various installations of Windows Server versions 1909, 1903, and 2004
Different architectures for Windows and Windows Server are affected.

Exploitation Mechanism

The vulnerability allows a locally authenticated attacker to exploit class object members to gain elevated system privileges.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary security updates and patches from Microsoft.
Regularly monitor for any unauthorized system access or changes.
Implement the principle of least privilege to restrict user actions.

Long-Term Security Practices

Conduct regular security training and awareness programs for users and administrators.
Employ intrusion detection and prevention systems to monitor for suspicious activities.

Patching and Updates

Ensure all affected Windows and Windows Server versions are promptly updated with the latest security patches provided by Microsoft.