STIGQter STIGQter: STIG Summary: VMware vSphere 7.0 Virtual Machine Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 30 Jan 2025:

The virtual machine (VM) must not be able to obtain host information from the hypervisor.

DISA Rule

SV-256465r959010_rule

Vulnerability Number

V-256465

Group Title

SRG-OS-000480-VMM-002000

Rule Version

VMCH-70-000017

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

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

Find the "tools.guestlib.enableHostInfo" value and set it to "false".

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 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.

or

From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the provided commands as shown below.

If the setting does not exist, run:

Get-VM "VM Name" | New-AdvancedSetting -Name tools.guestlib.enableHostInfo -Value false

If the setting exists, run:

Get-VM "VM Name" | Get-AdvancedSetting -Name tools.guestlib.enableHostInfo | Set-AdvancedSetting -Value false

Check Contents

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

Verify the "tools.guestlib.enableHostInfo" value is set to "false".

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 tools.guestlib.enableHostInfo

If the virtual machine advanced setting "tools.guestlib.enableHostInfo" does not exist or is not set to "false", this is a finding.

Vulnerability Number

V-256465

Documentable

False

Rule Version

VMCH-70-000017

Severity Override Guidance

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

Verify the "tools.guestlib.enableHostInfo" value is set to "false".

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 tools.guestlib.enableHostInfo

If the virtual machine advanced setting "tools.guestlib.enableHostInfo" does not exist or is not set to "false", this is a finding.

Check Content Reference

M

Target Key

5519