TMAegis
Más reglas para freebsd

FreeBSD

TMA-FREEBSD-3.4.1.2

Ensure a single firewall utility is in use

AltaNivel 1Automatizadafreebsd

Descripción

FreeBSD ships with multiple firewall utilities, providing uses with options to best suit their environment. This section provides guidance to ensure that only one firewall utility is implemented. The use of more than one firewall utility may produce unexpected results. Audit: exactly one of firewall_enable (ipfw), ipfilter_enable or pf_enable must be YES.

Cómo se verifica

Método de auditoría: Comando de shell

shell
command -v sysrc >/dev/null 2>&1 || exit 1; n=0; for k in firewall_enable ipfilter_enable pf_enable; do v=$(sysrc -q -n $k 2>/dev/null); case "$v" in [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) n=$((n+1));; esac; done; [ "$n" -eq 1 ] && echo compliant || echo "$n firewall utilities enabled"
Salida esperada
compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Run the following script to ensure that a single firewall utility is in use on the system. If more than one firewall utility was found to be running then all other services except the desired one should be stopped and disabled. For ipfilter run: # service ipfilter stop # service ipfilter disable For ipfw run: # service firewall stop # service firewall disable For pf run: # service pf stop # service pf disable

Propiedades

Sistemas operativos
Cualquiera
Etiquetas
freebsdnetwork
Referencia
CIS FreeBSD 14 Benchmark v1.0.1 - 3.4.1.2 Ensure a single firewall utility is in use

Verificar este host

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

shell
tmaegis scan --target freebsd