CVE-2019-0637 : Vulnerability Insights and Analysis
Learn about CVE-2019-0637, a security feature bypass vulnerability in Windows Defender Firewall allowing attackers to bypass security measures. Find mitigation steps and affected systems here.
Windows Defender Firewall Security Feature Bypass Vulnerability
Understanding CVE-2019-0637
This CVE involves a security feature bypass vulnerability in Windows Defender Firewall that allows attackers to bypass a security feature by incorrectly applying firewall profiles to cellular network connections.
What is CVE-2019-0637?
This vulnerability in Windows Defender Firewall occurs due to the incorrect application of firewall profiles to cellular network connections, enabling the bypassing of a security feature.
The Impact of CVE-2019-0637
The vulnerability can be exploited by attackers to bypass security measures, potentially leading to unauthorized access and compromise of affected systems.
Technical Details of CVE-2019-0637
Vulnerability Description
The vulnerability allows attackers to bypass a security feature in Windows Defender Firewall by incorrectly applying firewall profiles to cellular network connections.
Affected Systems and Versions
- Windows:
- Windows 10 Version 1709 for 32-bit Systems
- Windows 10 Version 1709 for x64-based Systems
- Windows 10 Version 1803 for 32-bit Systems
- Windows 10 Version 1803 for x64-based Systems
- Windows 10 Version 1803 for ARM64-based Systems
- 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 10 Version 1709 for ARM64-based Systems
- Windows Server:
- Windows Server version 1709 (Core Installation)
- Windows Server version 1803 (Core Installation)
- Windows Server 2019
- Windows Server 2019 (Core installation)
Exploitation Mechanism
The vulnerability is exploited by applying firewall profiles incorrectly to cellular network connections, allowing attackers to bypass the security feature.
Mitigation and Prevention
Immediate Steps to Take
- Apply the necessary security updates provided by Microsoft.
- Review and adjust firewall profiles to ensure correct application.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch systems to prevent vulnerabilities.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
Ensure that all affected systems are updated with the latest security patches from Microsoft.