Windows 11 Kernel (Direct Memory Access) DMA Protection must be enabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-253426 | WN11-EP-000310 | SV-253426r991580_rule | Medium |
| Description |
| Kernel DMA Protection to protect PCs against drive-by Direct Memory Access (DMA) attacks using PCI hot plug devices connected to Thunderbolt 3 ports. Drive-by DMA attacks can lead to disclosure of sensitive information residing on a PC, or even injection of malware that allows attackers to bypass the lock screen or control PCs remotely. |
| STIG | Date |
| Microsoft Windows 11 Security Technical Implementation Guide | 2024-09-12 |
Details
| Check Text (C-56879r829360_chk) |
| If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\Kernel DMA Protection Value Name: DeviceEnumerationPolicy Value Type: REG_DWORD Value: 0 |
| Fix Text (F-56829r829361_fix) |
| Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Kernel DMA Protection >> "Enumeration policy for external devices incompatible with Kernel DMA Protection" to "Enabled" with "Enumeration Policy" set to "Block All". |