SMB File Sharing must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-58295	AOSX-09-000139	SV-72725r1_rule		Medium

Description
File Sharing is non-essential and must be disabled. Enabling any service increases the attack surface for an intruder. By disabling unnecessary services, the attack surface is minimized.

STIG	Date
Apple OS X 10.9 (Mavericks) Workstation Security Technical Implementation Guide	2017-01-05

Details

Check Text ( C-59121r1_chk )
SMB File Sharing must be disabled. To check if SMB File Sharing is disabled, run the following command: sudo /usr/libexec/PlistBuddy -c 'print com.apple.smbd:Disabled' /var/db/launchd.db/com.apple.launchd/overrides.plist If the returned value isn't 'true', this is a finding.

Fix Text (F-63611r1_fix)
To disable SMB File Sharing, run the following command: sudo defaults write /private/var/db/launchd.db/com.apple.launchd/overrides.plist 'com.apple.smbd' -dict Disabled -bool true