WN11-00-000032 - Windows 11 systems must use a BitLocker PIN with a minimum length of six digits for pre-boot authentication.

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Information

If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running. Pre-boot authentication prevents unauthorized users from accessing encrypted drives. Increasing the pin length requires a greater number of guesses for an attacker.

Solution

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> BitLocker Drive Encryption >> Operating System Drives 'Configure minimum PIN length for startup' to 'Enabled' with 'Minimum characters:' set to '6' or greater.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_11_V1R2_STIG.zip

Item Details

References: CAT|II, CCI|CCI-000804, Rule-ID|SV-253261r828867_rule, STIG-ID|WN11-00-000032, Vuln-ID|V-253261

Plugin: Windows

Control ID: 326e88d5c855a19ee6119cf86783bf3000799cfff9382bb7ab1fc1fd240116d1