CVE-2019-1483 : Security Advisory and Response

A security weakness known as an elevation of privilege vulnerability in the Windows AppX Deployment Server is detailed in this CVE.

Understanding CVE-2019-1483

What is CVE-2019-1483?

An elevation of privilege vulnerability exists in the Windows AppX Deployment Server due to improper junction handling. This vulnerability requires initial control over the victim system for exploitation.

The Impact of CVE-2019-1483

This vulnerability, also referred to as 'Windows Elevation of Privilege Vulnerability,' has a separate CVE ID from CVE-2019-1476.

Technical Details of CVE-2019-1483

Vulnerability Description

The vulnerability arises from improper junction handling in the Windows AppX Deployment Server.

Affected Systems and Versions

Windows 10 Version 1909 for ARM64-based Systems
Windows Server, version 1909 (Server Core installation)
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1803, 1809, and 1709 for various systems
Windows Server versions
Windows 10 Version 1903 for 32-bit, x64-based, and ARM64-based Systems
Windows Server, version 1903 (Server Core installation)

Exploitation Mechanism

To exploit this vulnerability, an attacker must first gain execution on the victim system.

Mitigation and Prevention

Immediate Steps to Take

Apply security updates provided by Microsoft promptly.
Monitor Microsoft's security advisories for patches related to this vulnerability.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access.
Regularly update and patch systems to prevent vulnerabilities.

Patching and Updates

Regularly check for and apply security patches and updates from Microsoft to mitigate the risk of exploitation.