CVE-2019-1456 Explained : Impact and Mitigation

A vulnerability in Microsoft Windows allows remote code execution due to a flaw in the Adobe Type Manager Library's handling of OpenType fonts.

Understanding CVE-2019-1456

What is CVE-2019-1456?

This vulnerability arises from the incorrect processing of specially crafted OpenType fonts by the Windows Adobe Type Manager Library, leading to remote code execution. It is also referred to as the 'OpenType Font Parsing Remote Code Execution Vulnerability'.

The Impact of CVE-2019-1456

The vulnerability allows attackers to execute arbitrary code remotely on affected systems, potentially leading to system compromise and unauthorized access.

Technical Details of CVE-2019-1456

Vulnerability Description

The flaw in the Windows Adobe Type Manager Library allows attackers to exploit the system by using malicious OpenType fonts, enabling remote code execution.

Affected Systems and Versions

Windows: Versions 7, 8.1, RT 8.1, and 10, including various service packs and architectures
Windows Server: Multiple versions including 2008, 2012, 2016, and 2019
Windows 10 Version 1903 for different system types

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing users to open a document or visit a website containing the malicious OpenType font, triggering the remote code execution.

Mitigation and Prevention

Immediate Steps to Take

Apply security updates provided by Microsoft promptly to mitigate the vulnerability
Disable the Preview Pane and Details Pane in Windows Explorer to prevent automatic parsing of fonts

Long-Term Security Practices

Regularly update and patch systems to address security vulnerabilities
Implement network segmentation and least privilege access to limit the impact of potential attacks

Patching and Updates

Microsoft has released security updates to address CVE-2019-1456. Ensure all affected systems are updated with the latest patches.