Ensure Bonjour Advertising Services Is Disabled

ThấpCấp 2Tự độngmacos

Mô tả

Bonjour is an auto-discovery mechanism for TCP/IP devices which enumerates devices and services within a local subnet. DNS on macOS is integrated with Bonjour and should not be turned off, but the Bonjour advertising service can be disabled. Bonjour can simplify device discovery from an internal rogue or compromised host. An attacker could use Bonjour's multicast DNS feature to discover a vulnerable or poorly- configured service or additional information to aid a targeted attack. Implementing this control disables the continuous broadcasting of "I'm here!" messages. Typical end-user endpoints should not have to advertise services to other computers. This setting does not stop the computer from sending out service discovery messages when looking for services on an internal subnet, if the computer is looking for a printer or server and using service discovery. To block all Bonjour traff...

Cách kiểm tra

Phương pháp kiểm tra: Lệnh shell

shell

/usr/bin/osascript -l JavaScript <<'EOS'
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.mDNSResponder').objectForKey('NoMulticastAdvertisements').js
EOS

Đầu ra mong đợi: true

Cách khắc phục

Phương pháp khắc phục: Hướng dẫn hoặc bản vá hạ tầng

Terminal Method: Run the following command to disable Bonjour Advertising services: % /usr/bin/sudo /usr/bin/defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -bool true Profile Method: Create or edit a configuration profile with the following information: 1. The PayloadType string is com.apple.mDNSResponder 2. The key to include is NoMulticastAdvertisements

Thuộc tính

Hệ điều hành: macos-14
Thẻ: macossonoma
Tham chiếu: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 4.1 Ensure Bonjour Advertising Services Is Disabled

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shell

tmaegis scan --target macos --level 2