Windows (desktop and server)
TMA-WIN10-18.9.5.2
(NG) Ensure 'Turn On Virtualization Based Security: Select Platform Security Level' is set to 'Secure Boot' or higher
Description
This policy setting specifies whether Virtualization Based Security (VBS) is enabled. VBS uses the Windows Hypervisor to provide support for security services. The recommended state for this setting is: Secure Boot or Secure Boot and DMA Protection. Note: VBS requires a 64-bit version of Windows with Secure Boot enabled, which in turn requires that Windows was installed with a UEFI BIOS configuration, not a Legacy BIOS configuration. In addition, if running Windows on a virtual machine, the hardware- assisted CPU virtualization feature (Intel VT-x or AMD-V) must be exposed by the host to the g
How it is checked
Audit method: Windows registry
$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard' -Name 'RequirePlatformSecurityFeatures' -ErrorAction SilentlyContinue).'RequirePlatformSecurityFeatures'; if (-not ($null -ne $v -and @(1,3) -contains [int64]$v)) { $bad += 'RequirePlatformSecurityFeatures=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }- Expected output
compliant
How it is fixed
Fix method: Shell command
if (-not (Test-Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard')) { New-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard' -Force | Out-Null }; New-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\DeviceGuard' -Name 'RequirePlatformSecurityFeatures' -Value 1 -PropertyType DWord -Force | Out-NullProperties
- Operating systems
- windows-10
- Tags
- cis-convertedregistrywindows
- Reference
- CIS Microsoft Windows 10 Enterprise Benchmark v4.0.0 - 18.9.5.2
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target windows