Which of the following BEST describes this attack?

A company that utilizes an IaaS service provider has contracted with a vendor to perform a penetration test on its environment. The vendor is able to exploit the virtualization layer and obtain access to other instances within the cloud provider’s environment that do not belong to the company.

Which of the following BEST describes this attack?
A . VM escape
B . Directory traversal
C . Buffer overflow
D . Heap spraying

Answer: A

Explanation:

Reference: https://whatis.techtarget.com/definition/virtual-machine-escape