Microsoft Windows Hyper-V Code Integrity CVE-2018-8219 Privilege Escalation Vulnerability

Description

Microsoft Windows is prone to a privilege-escalation vulnerability. An attackers may exploit this issue to gain elevated privileges.

Technologies Affected

• Microsoft Windows 10 Version 1607 for x64-based Systems
• Microsoft Windows 10 Version 1803 for x64-based Systems
• Microsoft Windows 10 version 1703 for x64-based Systems
• Microsoft Windows 10 version 1709 for x64-based Systems
• Microsoft Windows Server 2016

Recommendations

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

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

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 such as unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Implement multiple redundant layers of security.
Memory-protection schemes (such as nonexecutable stack and heap configurations and randomly mapped memory segments) will complicate exploits of memory-corruption vulnerabilities.

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