Microsoft Windows CryptoAPI CVE-2020-0601 Spoofing Vulnerability

Description

Microsoft Windows is prone to a security vulnerability that may allow attackers to conduct spoofing attacks. An attacker can exploit this issue to conduct spoofing attacks and perform unauthorized actions; other attacks are also possible.

Technologies Affected

• Microsoft Windows 10 Version 1607 for 32-bit Systems
• Microsoft Windows 10 Version 1607 for x64-based Systems
• Microsoft Windows 10 Version 1709 for ARM64-based Systems
• Microsoft Windows 10 Version 1803 for 32-bit Systems
• Microsoft Windows 10 Version 1803 for ARM64-based Systems
• Microsoft Windows 10 Version 1803 for x64-based Systems
• Microsoft Windows 10 Version 1809 for 32-bit Systems
• Microsoft Windows 10 Version 1809 for ARM64-based Systems
• Microsoft Windows 10 Version 1809 for x64-based Systems
• Microsoft Windows 10 Version 1903 for 32-bit Systems
• Microsoft Windows 10 Version 1903 for ARM64-based Systems
• Microsoft Windows 10 Version 1903 for x64-based Systems
• Microsoft Windows 10 Version 1909 for 32-bit Systems
• Microsoft Windows 10 Version 1909 for ARM64-based Systems
• Microsoft Windows 10 Version 1909 for x64-based Systems
• Microsoft Windows 10 for 32-bit Systems
• Microsoft Windows 10 for x64-based Systems
• Microsoft Windows 10 version 1709 for 32-bit Systems
• Microsoft Windows 10 version 1709 for x64-based Systems
• Microsoft Windows Server 1803
• Microsoft Windows Server 1903
• Microsoft Windows Server 1909
• Microsoft Windows Server 2016
• Microsoft Windows Server 2019

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, run all applications with the minimal amount of privileges required for functionality.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.