A security analyst is concerned about the risk of VM escape attacks in the company's virtualized datacenter. Which of the following strategies provides the most comprehensive mitigation against this type of vulnerability?
Deploying host-based intrusion detection systems (HIDS) on all guest virtual machines.
Exclusively using process isolation to separate the guest VM from the host's kernel.
Encrypting all data-at-rest on the virtual machines' storage volumes.
A defense-in-depth approach, including keeping the hypervisor and guest OS patched, implementing strict access controls, and network segmentation.
While process isolation is the fundamental mechanism that prevents VM escape, it is not foolproof, as vulnerabilities in the hypervisor can still be exploited. A comprehensive, defense-in-depth strategy is the most effective approach. This includes keeping both the hypervisor and guest operating systems fully patched, using network segmentation to limit an attacker's reach, and applying the principle of least privilege through strict access controls. HIDS on guest VMs and data encryption are valuable security layers, but they do not directly prevent the hypervisor compromise that enables a VM escape.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.