CVE-2020-0843 : Security Advisory and Response

Windows Installer Elevation of Privilege Vulnerability

Understanding CVE-2020-0843

An elevation of privilege vulnerability in Windows Installer affecting various Microsoft Windows and Windows Server versions.

What is CVE-2020-0843?

This vulnerability arises due to the mishandling of certain filesystem operations by Windows Installer, allowing unprivileged attackers to elevate their privileges on the target system.

The Impact of CVE-2020-0843

The exploitation of this vulnerability could lead to unauthorized elevation of privileges, enabling attackers to execute arbitrary code or install malware on the compromised system.

Technical Details of CVE-2020-0843

Affected Systems and Versions

Windows 7, 8.1, 10, Server 2008, 2012, 2016, 2019
Various versions specified for different architectures like 32-bit, 64-bit, and ARM64-based systems

Vulnerability Description

CVE ID: CVE-2020-0843
Type: Elevation of Privilege

Affected Systems and Versions

Detailed list of affected Windows and Windows Server versions

Exploitation Mechanism

Attackers require unprivileged execution on the victim system
Exploitation method involves manipulating Windows Installer operations

Mitigation and Prevention

Immediate Steps to Take

Apply security updates provided by Microsoft
Monitor systems for unauthorized access or unusual activities

Long-Term Security Practices

Implement the principle of least privilege for user accounts
Regularly review and update security configurations

Patching and Updates

Timely application of security patches and updates is critical to prevent exploitation of known vulnerabilities