CVE-2019-1340 : What You Need to Know

Windows AppX Deployment Server has an elevation of privilege vulnerability that allows attackers to create files in any location after gaining system access. This CVE is distinct from CVE-2019-1320 and CVE-2019-1322.

Understanding CVE-2019-1340

What is CVE-2019-1340?

An elevation of privilege vulnerability in Windows AppX Deployment Server enables attackers to create files in arbitrary locations upon system access.

The Impact of CVE-2019-1340

This vulnerability could be exploited by attackers who have already logged into the system, potentially leading to unauthorized file creation.

Technical Details of CVE-2019-1340

Vulnerability Description

The vulnerability in Windows AppX Deployment Server allows for unauthorized file creation in any location on the system.

Affected Systems and Versions

Windows 10 Version 1703, 1709, 1803, 1809 for 32-bit, x64-based, and ARM64-based Systems
Windows Server versions 1803, 2019
Windows 10 Version 1903 for 32-bit, x64-based, and ARM64-based Systems
Windows Server version 1903 (Server Core installation)

Exploitation Mechanism

Attackers need system access to exploit this vulnerability, allowing them to create files in unauthorized locations.

Mitigation and Prevention

Immediate Steps to Take

Apply security updates provided by Microsoft promptly
Monitor system logs for any suspicious activities
Implement the principle of least privilege to restrict user access

Long-Term Security Practices

Regularly update and patch systems to address vulnerabilities
Conduct security training for users to recognize and report suspicious activities

Patching and Updates

Microsoft has released security updates to address CVE-2019-1340