Ensure Avahi Server is not enabled

MoyenneNiveau 1Automatiséeros

Description

Avahi is a free zeroconf implementation, including a system for multicast DNS/DNS-SD service discovery. Avahi allows programs to publish and discover services and hosts running on a local network with no specific configuration. The audit requires the Avahi unit(s) avahi-daemon not to be enabled or active (systemctl). Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

Méthode de vérification

Méthode d'audit: Commande shell

shell

command -v systemctl >/dev/null 2>&1 || exit 1
bad=0
for u in avahi-daemon; do
  s=$(systemctl is-enabled "$u" 2>/dev/null)
  case "$s" in enabled|enabled-runtime|alias|indirect) echo "$u is $s"; bad=1 ;; esac
  systemctl is-active --quiet "$u" 2>/dev/null && { echo "$u is active"; bad=1; }
done
[ "$bad" -eq 0 ] && echo compliant

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Run the following command to disable avahi-daemon: # systemctl --now disable avahi-daemon

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: rosros1melodicservices
Référence: CIS ROS Melodic Benchmark v1.0.0 - 2.2.3 Ensure Avahi Server is not enabled

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target ros