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Assessment Title
Rule Text
The system must disable VIX messages from the VM.
Description
Discussion Text
The VIX API is a library for writing scripts and programs to manipulate virtual machines. If custom VIX programming is not used in the environment, then disable features to reduce the potential for vulnerabilities. Unprivileged code running in a VMware virtual machine (guest OS) may break out of the VMX process, and elevate from unprivileged guest code execution to host kernel code execution. The ability to send messages from the VM to the host is one of these features. Note that disabling this feature does "not" adversely affect the functioning of VIX operations that originate outside the guest, so certain VMware and 3rd party solutions that rely upon this capability should continue to work.
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