CVE-2021-41371 Explained : Impact and Mitigation

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability was published on 2021-11-10.

Understanding CVE-2021-41371

What is CVE-2021-41371?

This CVE refers to an Information Disclosure Vulnerability in the Windows Remote Desktop Protocol (RDP).

The Impact of CVE-2021-41371

The vulnerability has a CVSS base score of 4.4 indicating a medium severity level. It can lead to unauthorized information disclosure on affected systems.

Technical Details of CVE-2021-41371

Vulnerability Description

The vulnerability allows attackers to access sensitive information through the RDP protocol.

Affected Systems and Versions

Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), and several other Windows versions.
Systems running versions less than 10.0.17763.2300 for Windows 10 1809 and similar for other products.
32-bit Systems, x64-based Systems, ARM64-based Systems.

Exploitation Mechanism

Attackers can exploit this vulnerability through the Remote Desktop Protocol, potentially leading to unauthorized access to sensitive information.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security updates provided by Microsoft.
Monitor network traffic and review logs for any suspicious activities.
Consider restricting RDP access to minimize exposure.

Long-Term Security Practices

Regularly update systems to patch known vulnerabilities.
Implement network segmentation to reduce attack surface.
Educate users on cybersecurity best practices.

Patching and Updates

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