CCE-97646-4Platform: cpe:/o:microsoft:windows_server_2022:::x64 | Date: (C)2022-06-07 (M)2023-07-04 |
This policy setting allows users to enable authentication options that require user input from the pre-boot environment even if the platform indicates lack of pre-boot input capability.
The Windows on-screen touch keyboard (such as used by slates) is not available in the pre-boot environment where BitLocker requires additional information such as a PIN or Password.
It is recommended that administrators enable this policy only for devices that are verified to have an alternative means of pre-boot input (such as by attaching a USB keyboard).
Note: that if this option is not enabled, options in the "Require additional authentication at startup" policy may not be available on such devices. These options include:
- Configure TPM startup PIN: Required/Allowed
- Configure TPM startup key and PIN: Required/Allowed
- Configure use of passwords for operating system drives.
Countermeasure:
Enable this policy setting for computers that support alternative means of pre-boot input.
Potential Impact:
Users will be required to authenticate in order to boot computers that rely primarily on touch keyboards, if they do not have access to a USB keyboard or other alternative means to enter their PIN or password they will be unable to boot the system.
Parameter:
[enabled/disabled]
Technical Mechanism:
(1) GPO: Computer Configuration\Administrative Templates\Windows Components\BitLocker Drive Encryption\Operating System Drives\Enable use of BitLocker authentication requiring preboot keyboard input on slates
(2) REG: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\FVE!OSEnablePrebootInputProtectorsOnSlates
CCSS Severity: | CCSS Metrics: |
CCSS Score : 5.1 | Attack Vector: LOCAL |
Exploit Score: 1.4 | Attack Complexity: HIGH |
Impact Score: 3.6 | Privileges Required: NONE |
Severity: MEDIUM | User Interaction: NONE |
Vector: AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | Scope: UNCHANGED |
| Confidentiality: NONE |
| Integrity: NONE |
| Availability: HIGH |
| |
References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:org.secpod.oval:def:80785 |