Drag and drop operations must be disabled on the virtual machine.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239333	VMCH-67-000002	SV-239333r679548_rule		Low

Description
Copy and paste operations are disabled by default; however, by explicitly disabling this feature it will enable audit controls to check that this setting is correct. Copy, paste, drag and drop, or GUI copy/paste operations between the guest OS and the remote console could provide the means for an attacker to compromise the VM.

STIG	Date
VMware vSphere 6.7 Virtual Machine Security Technical Implementation Guide	2021-04-16

Details

Check Text ( C-42566r679546_chk )
From the vSphere Web Client right-click the Virtual Machine and go to Edit Settings >> VM Options >> Advanced >> Configuration Parameters >> Edit Configuration. Verify the isolation.tools.dnd.disable value is set to true. or From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command: Get-VM "VM Name" \| Get-AdvancedSetting -Name isolation.tools.dnd.disable If the virtual machine advanced setting isolation.tools.dnd.disable does not exist or is not set to true, this is a finding.

Check Text ( C-42566r679546_chk )

From the vSphere Web Client right-click the Virtual Machine and go to Edit Settings >> VM Options >> Advanced >> Configuration Parameters >> Edit Configuration. Verify the isolation.tools.dnd.disable value is set to true.

or

From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command:

Get-VM "VM Name" | Get-AdvancedSetting -Name isolation.tools.dnd.disable

If the virtual machine advanced setting isolation.tools.dnd.disable does not exist or is not set to true, this is a finding.

Fix Text (F-42525r679547_fix)
From the vSphere Web Client right-click the Virtual Machine and go to Edit Settings >> VM Options >> Advanced >> Configuration Parameters >> Edit Configuration. Verify the isolation.tools.dnd.disable value is set to true. If the setting does not exist, add the Name and Value setting at the bottom of screen. Note: The VM must be powered off to configure the advanced settings through the vSphere Web Client so it is recommended to configure these settings with PowerCLI as it can be done while the VM is powered on. Settings do not take effect via either method until the virtual machine is cold started, not rebooted. or From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command: If the setting does not exist, run: Get-VM "VM Name" \| New-AdvancedSetting -Name isolation.tools.dnd.disable -Value true If the setting exists, run: Get-VM "VM Name" \| Get-AdvancedSetting -Name isolation.tools.dnd.disable \| Set-AdvancedSetting -Value true

Fix Text (F-42525r679547_fix)

From the vSphere Web Client right-click the Virtual Machine and go to Edit Settings >> VM Options >> Advanced >> Configuration Parameters >> Edit Configuration. Verify the isolation.tools.dnd.disable value is set to true. If the setting does not exist, add the Name and Value setting at the bottom of screen.

Note: The VM must be powered off to configure the advanced settings through the vSphere Web Client so it is recommended to configure these settings with PowerCLI as it can be done while the VM is powered on. Settings do not take effect via either method until the virtual machine is cold started, not rebooted.

or

From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command:

If the setting does not exist, run:

Get-VM "VM Name" | New-AdvancedSetting -Name isolation.tools.dnd.disable -Value true

If the setting exists, run:

Get-VM "VM Name" | Get-AdvancedSetting -Name isolation.tools.dnd.disable | Set-AdvancedSetting -Value true