An organization is implementing a virtualized thin-client solution for normal user computing and access. During a review of the architecture, concerns were raised that an attacker could gain access to multiple user environments by simply gaining a foothold on a single one with malware.
Which of the following reasons BEST explains this?
A . Malware on one virtual environment could enable pivoting to others by leveraging vulnerabilities in the hypervisor.
B . A worm on one virtual environment could spread to others by taking advantage of guest OS networking services vulnerabilities.
C . One virtual environment may have one or more application-layer vulnerabilities, which could allow an attacker to escape that environment.
D . Malware on one virtual user environment could be copied to all others by the attached network storage controller.
Answer: A
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