STIGQter STIGQter: STIG Summary: VMware vSphere 8.0 Virtual Machine Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 31 Oct 2023:

Virtual machines (VMs) must limit console sharing.

DISA Rule

SV-258708r933185_rule

Vulnerability Number

V-258708

Group Title

SRG-OS-000480-VMM-002000

Rule Version

VMCH-80-000195

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

For each virtual machine do the following:

From the vSphere Client, right-click the Virtual Machine and go to Edit Settings >> Advanced Parameters.

Find the "RemoteDisplay.maxConnections" value and set it to "1".

If the setting does not exist, add the Name and Value setting at the bottom of screen.

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 RemoteDisplay.maxConnections | Set-AdvancedSetting -Value 1

Note: The VM must be powered off to configure the advanced settings through the vSphere Client. Therefore, it is recommended to configure these settings with PowerCLI as this 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.

Check Contents

For each virtual machine do the following:

From the vSphere Client, right-click the Virtual Machine and go to Edit Settings >> Advanced Parameters.

Verify the "RemoteDisplay.maxConnections" value is set to "1".

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 RemoteDisplay.maxConnections

If the virtual machine advanced setting "RemoteDisplay.maxConnections" does not exist or is not set to "1", this is a finding.

Vulnerability Number

V-258708

Documentable

False

Rule Version

VMCH-80-000195

Severity Override Guidance

For each virtual machine do the following:

From the vSphere Client, right-click the Virtual Machine and go to Edit Settings >> Advanced Parameters.

Verify the "RemoteDisplay.maxConnections" value is set to "1".

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 RemoteDisplay.maxConnections

If the virtual machine advanced setting "RemoteDisplay.maxConnections" does not exist or is not set to "1", this is a finding.

Check Content Reference

M

Target Key

5563