TMA-MACOS-2.2.1

Ensure Firewall Is Enabled

AltaNivel 1Automatizadamacos

Descripción

A firewall is a piece of software that blocks unwanted incoming connections to a system. The socketfilter Firewall is what is used when the Firewall is turned on in the Security & Privacy Preference Pane. Logging is required to appropriately monitor what access is allowed and denied. The logs can be viewed in the macOS Unified Logs. Audit: Passes when the com.apple.security.firewall EnableFirewall key is true or socketfilterfw reports State = 1 or 2.

Cómo se verifica

Método de auditoría: Comando de shell

shell

[ -x /usr/bin/osascript ] || exit 1
p=$(/usr/bin/osascript -l JavaScript <<'EOS'
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.security.firewall').objectForKey('EnableFirewall').js
EOS
)
s=$(/usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate 2>/dev/null)
if [ "$p" = true ] || printf '%s' "$s" | /usr/bin/grep -qE 'State = [12]'; then echo compliant; else echo "EnableFirewall=${p:-unset}; $s"; fi

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Profile (preferred): com.apple.security.firewall EnableFirewall = <true/>. Terminal: sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate on. GUI: System Settings > Network > Firewall > Set Firewall to enabled.

Propiedades

Sistemas operativos: macos-26
Etiquetas: macossystem-settings
Referencia: CIS Apple macOS 26 Tahoe Benchmark v1.1.0 - 2.2.1 Ensure Firewall Is Enabled

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target macos