CVE-2019-1220 : What You Need to Know

A security feature bypass vulnerability in Microsoft Browsers that fails to validate the correct Security Zone of requests for specific URLs.

Understanding CVE-2019-1220

What is CVE-2019-1220?

The vulnerability, known as 'Microsoft Browser Security Feature Bypass Vulnerability,' arises from the improper verification of Security Zones in Microsoft Browsers.

The Impact of CVE-2019-1220

The vulnerability can potentially allow attackers to bypass security features and execute malicious actions through specific URLs.

Technical Details of CVE-2019-1220

Vulnerability Description

The vulnerability occurs due to the failure of Microsoft Browsers to validate the correct Security Zone of requests for specific URLs.

Affected Systems and Versions

Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2 and x64-based Systems Service Pack 2
Internet Explorer 11 on various Windows versions including Windows 7, 8.1, 10, Server 2016, and more
Internet Explorer 11 on Windows Server 2012, Windows 10 Version 1903, and various other systems
Internet Explorer 10 on Windows Server 2012
Microsoft Edge (EdgeHTML-based) on multiple Windows versions

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to bypass security controls and potentially perform unauthorized actions through specific URLs.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches and updates provided by Microsoft promptly
Implement network security measures to detect and block malicious activities

Long-Term Security Practices

Regularly update and patch all software and systems to mitigate potential vulnerabilities
Conduct security training for users to recognize and report suspicious activities

Patching and Updates

It is crucial to install the latest security updates and patches released by Microsoft to address the security feature bypass vulnerability in Microsoft Browsers.