CVE-2019-1477 : Vulnerability Insights and Analysis

Windows Printer Service Elevation of Privilege Vulnerability

Understanding CVE-2019-1477

What is CVE-2019-1477?

An elevation of privilege vulnerability in the Windows Printer Service allows attackers to gain elevated privileges due to improper validation of file paths when loading printer drivers.

The Impact of CVE-2019-1477

This vulnerability can be exploited by malicious actors to escalate privileges on affected systems, potentially leading to unauthorized access and control.

Technical Details of CVE-2019-1477

Vulnerability Description

The flaw arises from the inadequate validation of file paths during the loading of printer drivers within the Windows Printer Service.

Affected Systems and Versions

Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows Server 2019
Windows Server 2019 (Core installation)

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious printer drivers and tricking users into installing them, leading to privilege escalation.

Mitigation and Prevention

Immediate Steps to Take

Apply security updates provided by Microsoft promptly.
Monitor for any unauthorized system access or changes.

Long-Term Security Practices

Regularly update and patch all software and systems.
Implement the principle of least privilege to restrict user permissions.
Conduct regular security audits and assessments.

Patching and Updates

Ensure that all affected systems are updated with the latest security patches from Microsoft.