Linux distributions
TMA-RHEL9-7.2.5
Ensure no duplicate GIDs exist
MoyenneNiveau 1Automatiséelinux
Description
Although the groupadd program will not let you create a duplicate Group ID (GID), it is possible for an administrator to manually edit the /etc/group file and change the GID field.
Méthode de vérification
Méthode d'audit: Commande shell
shell
alt0() { o=$(bash -c '#!/usr/bin/env bash
{
while read -r l_count l_gid; do
if [ "$l_count" -gt 1 ]; then
echo -e "Duplicate GID: \"$l_gid\" Groups: \"$(awk -F: '"'"'($3 == n) { print $1 }'"'"' n=$l_gid /etc/group | xargs)\""
fi
done < <(cut -f3 -d":" /etc/group | sort -n | uniq -c)
}' 2>&1); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi- Sortie attendue
compliant
Méthode de correction
Méthode de correction: Recommandation ou correctif d'infrastructure
Based on the Audit Procedure output, for each GID shared by more than one group, keep the GID on the correct group and assign a new, unused GID to each of the other groups: # groupmod -g <GID> <groupname> Review any files group-owned by the previously shared GID and reassign group ownership to the correct group as appropriate.
Propriétés
- Systèmes d'exploitation
- rhel-9
- Étiquettes
- cis-convertedlinux
- Référence
- CIS Red Hat Enterprise Linux 9 Benchmark v3.0.0 - 7.2.5
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 linux