18.9.11.1.14 Ensure 'Configure use of passwords for fixed data drives' is set to 'Disabled'

Information

This policy setting specifies whether a password is required to unlock BitLocker-protected fixed data drives.

Note: This setting is enforced when turning on BitLocker, not when unlocking a volume.

BitLocker will allow unlocking a drive with any of the protectors available on the drive.

The recommended state for this setting is: 'Disabled'.

Rationale:

Using a dictionary-style attack, passwords can be guessed or discovered by repeatedly attempting to unlock a drive.

Since this type of BitLocker password does include anti-dictionary attack protections provided by a TPM, for example, there is no mechanism to slow down rapid brute-force attacks against them.

Solution

To establish the recommended configuration via GP, set the following UI path to Disabled:

Computer Configuration\Policies\Administrative Templates\Windows Components\BitLocker Drive Encryption\Fixed Data Drives\Configure use of passwords for fixed data drives

See Also

https://workbench.cisecurity.org/files/1933

Item Details

Category: CONTINGENCY PLANNING, SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|CP-10, 800-53|SC-28, CCE|CCE-33165-2, CSCv6|13.2

Plugin: Windows

Control ID: 5df9ca70ff226521739e0202cae79e4ee641df592563f126b14f5d9fe471272e