The macOS system must disable Bonjour multicast.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-268481 | APPL-15-002005 | SV-268481r1034383_rule | Medium |
| Description |
| Bonjour multicast advertising must be disabled to prevent the system from broadcasting its presence and available services over network interfaces. |
| STIG | Date |
| Apple macOS 15 (Sequoia) Security Technical Implementation Guide | 2025-05-05 |
Details
| Check Text (C-72511r1034381_chk) |
| Verify the macOS system is configured to disable Bonjour multicast with the following command: /usr/bin/osascript -l JavaScript << EOS $.NSUserDefaults.alloc.initWithSuiteName('com.apple.mDNSResponder')\ .objectForKey('NoMulticastAdvertisements').js EOS If the result is not "true", this is a finding. |
| Fix Text (F-72412r1034382_fix) |
| Configure the macOS system to disable Bonjour multicast by installing the "com.apple.mDNSResponder" configuration profile. |