DISA STIGS Viewer

The macOS system must disable Server Message Block (SMB) sharing.

Overview

Finding ID Version Rule ID IA Controls Severity
V-268478 APPL-15-002001 SV-268478r1034374_rule   Medium
Description
Support for SMB file sharing is nonessential and must be disabled. The information system must be configured to provide only essential capabilities. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.
STIG Date
Apple macOS 15 (Sequoia) Security Technical Implementation Guide 2025-05-05

Details

Check Text (C-72508r1034372_chk)
Verify the macOS system is configured to disable SMB sharing with the following command:

/bin/launchctl print-disabled system | /usr/bin/grep -c '"com.apple.smbd" => disabled'

If the result is not "1", this is a finding.
Fix Text (F-72409r1034373_fix)
Configure the macOS system to disable SMB sharing with the following command:

/bin/launchctl disable system/com.apple.smbd

The system may need to be restarted for the update to take effect.