STIGUI
V-277177CAT II — Medium severitySV-277177r1148983_rule

The macOS system must authorize USB devices before allowing connection.

Rule version APPL-26-005090 · STIG v1 · 2026-09-01

Discussion

USB devices connected to a Mac must be authorized.

[IMPORTANT] ==== This feature is removed if a smart card is paired or smart card attribute mapping is configured. ====

Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity.

Satisfies: SRG-OS-000378-GPOS-00163, SRG-OS-000690-GPOS-00140

Check

Verify the macOS system is configured to authorize USB devices before allowing connection with the following command:

/usr/bin/osascript -l JavaScript << EOS function run() { let pref1 = ObjC.unwrap($.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\ .objectForKey('allowUSBRestrictedMode')) if ( pref1 == false ) { return("false") } else { return("true") } } EOS

If the result is not "true", this is a finding.

Fix

Configure the macOS system to authorize USB devices before allowing connection by installing the "com.apple.applicationaccess" configuration profile.

Identifiers

Group ID
V-277177
Group title
SRG-OS-000378-GPOS-00163
Rule ID
SV-277177r1148983_rule
Check ID
C-81332r1148981_chk
Fix ID
F-81237r1148982_fix