DISA STIGS Viewer

The macOS system must enable firmware password.

Overview

Finding ID Version Rule ID IA Controls Severity
V-268540 APPL-15-003013 SV-268540r1034560_rule   Medium
Description
A firmware password must be enabled and set. Single user mode, recovery mode, the Startup Manager, and several other tools are available on macOS by holding the "Option" key down during startup. Setting a firmware password restricts access to these tools. To set a firmware passcode, use the following command: [source,bash] ---- /usr/sbin/firmwarepasswd -setpasswd ---- NOTE: If the firmware password or passcode is forgotten, the only way to reset the forgotten password is through the use of a machine-specific binary generated and provided by Apple. Users must schedule a support call and provide proof of purchase before the firmware binary will be generated. NOTE: Firmware passwords are not supported on Apple Silicon devices. This rule is only applicable to Intel devices.
STIG Date
Apple macOS 15 (Sequoia) Security Technical Implementation Guide 2025-05-05

Details

Check Text (C-72570r1034558_chk)
For Apple Silicon systems, this is not applicable.

Verify the macOS system is configured with a firmware password with the following command:

/usr/sbin/firmwarepasswd -check | /usr/bin/grep -c "Password Enabled: Yes"

If the result is not "1", this is a finding.
Fix Text (F-72471r1034559_fix)
Configure the macOS system with a firmware password with the following command:

/usr/sbin/firmwarepasswd -setpasswd

NOTE: If firmware password or passcode is forgotten, the only way to reset the forgotten password is through a machine-specific binary generated and provided by Apple. Users must schedule a support call and provide proof of purchase before the firmware binary will be generated.