Ensure firewalld.service is configured

MediumLevel 1Automatedlinux

Description

firewalld.service is a firewall service daemon that provides a dynamic, customizable firewall with a D-Bus interface.

How it is checked

Audit method: Shell command

shell

alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled firewalld.service' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- enabled || { echo step1: missing enabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-active firewalld.service' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- active || { echo step2: missing active; return 1; }; }; if alt0; then echo compliant; fi

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following commands to unmask, enable, and start firewalld.service: # systemctl unmask firewalld.service # systemctl --now enable firewalld.service

Properties

Operating systems: rocky-10
Tags: cis-convertedlinux
Reference: CIS Rocky Linux 10 Benchmark v1.0.0 - 4.1.3

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target linux