Ensure rcnfs service is not in use

MoyenneNiveau 1Automatiséeaix

Description

The rcnfs entry starts the NFS, NIS and automount daemons during system boot. Additionally, it automounts filesystems with the attribute vfs = nfs. NFS is a service with numerous historical vulnerabilities and should not be enabled unless there is no alternative. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

Méthode de vérification

Méthode d'audit: Commande shell

shell

command -v lsitab >/dev/null 2>&1 || exit 1; out=$( { lsitab rcnfs | grep -v off ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Use the chitab command to disable the NFS start-up script in /etc/inittab: Note: Do not use the rmitab to remove the NFS start-up script from /etc/inittab as it may return during a update. chitab "rcnfs:23456789:off:/etc/rc.nfs > /dev/console 2>&1 # Start NFS Daemons" Also, to be certain NFS and NIS related services have been stopped - execute the following script: /etc/nfs.clean

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: aixservices
Référence: CIS IBM AIX 7 Benchmark v1.2.0 - 4.3.1.5 Ensure rcnfs service is not in use

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 aix