Ticket #12026 (closed enhancement: fixed)

Opened 9 years ago

Last modified 3 years ago

option to disable microphone inside virtual machine

Reported by: bmn Owned by:
Component: other Version: VirtualBox 4.2.16
Keywords: Cc:
Guest type: all Host type: all


Feature Request / Summary

Guest can access to the host's built-in microphone. I do not want this, because if the VM gets compromised, someone can listen.

Can you add an option to disable this please? For example with some "VBoxManage setextradata vmname VBoxInternal/Devices/xxx 0" like command?


Use case

  • Using less secure things inside a VM (for example, flash) to prevent the host getting infected by malware if the less secure thing (flash) has a vulnerability.


  • Muting the microphone on the host is no solution, because then Voip/Skype/etc. can no longer be used on the host or inside other VMs.
  • Muting the microphone inside the VM is no solution, because this can be reversed, once the guest operating system has been compromised.
  • Deactivating the virtual sound card in the VM settings is no solution, because this prevents hearing sound inside the VM. Viewing flash videos and so on is not much fun without sound.

Therefore not making the microphone available to specific VMs would be the best solution.

Change History

comment:1 Changed 4 years ago by socratis

This has been addressed with the release of VirtualBox 5.2.0. The ticket can now be closed as "Fixed".

For completeness, the appropriate commands are:

VBoxManage modifyvm <uuid|vmname> --audioin on|off

or when the VM is up and running:

VBoxManage controlvm <uuid|vmname> audioin on|off
Last edited 3 years ago by socratis (previous) (diff)

comment:2 Changed 3 years ago by gombara

  • Status changed from new to closed
  • Resolution set to fixed
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