Detections
Analytics

18.8.5.2 Ensure 'Turn On Virtualization Based Security: Select Platform Security Level' is set to 'Secure Boot and DMA Protection'

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Information

This policy setting specifies whether Virtualization Based Security is enabled. Virtualization Based Security uses the Windows Hypervisor to provide support for security services.

The recommended state for this setting is: Secure Boot and DMA Protection.

Note: Virtualization Based Security 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 guest VM.

More information on system requirements for this feature can be found at Windows Defender Credential Guard Requirements (Windows 10) | Microsoft Docs

Note #2: Credential Guard and Device Guard are not currently supported when using Azure IaaS VMs.

Rationale:

Secure Boot can help reduce the risk of bootloader attacks and in conjunction with DMA protections to help protect data from being scraped from memory.

Impact:

Warning: All drivers on the system must be compatible with this feature or the system may crash. Ensure that this policy setting is only deployed to computers which are known to be compatible.

Solution

To establish the recommended configuration, set the following Device Configuration Policy to Secure Boot and DMA Protection:

To access the Device Configuration Policy from the Intune Home page:

Click Devices

Click Configuration profiles

Click Create profile

Select the platform (Windows 10 and later)

Select the profile (Custom)

Click Create

Enter a Name

Click Next

Configure the following Setting

Name: <Enter name>
Description: <Enter Description>
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/DeviceGuard/RequirePlatformSecurityFeatures
Data type: Integer
Value: 3

Select OK

Continue through the Wizard to complete the creation of the profile (profile assignments, applicability etc.)

Note: More than one configuration setting from each of the Configuration profiles (ex: Administrative Templates, Custom etc.) can be added to each Device Configuration Policy.

Default Value:

Disabled.

See Also

https://workbench.cisecurity.org/files/3358

Item Details

References: CSCv7|5.1

Plugin: Windows

Control ID: 2ffc3efbb35d40831ff2d2f14f5ac85e918993d016097c9f74325c69ac005e10