Ensure no duplicate group names exist

How it is checked

Audit method: Shell command

alt0() { o=$(bash -c '#!/usr/bin/env bash

{
   while read -r l_count l_group; do
      if [ "$l_count" -gt 1 ]; then
         echo -e "Duplicate Group: \"$l_group\" Groups: \"$(awk -F: '"'"'($1 == n) { print $1 }'"'"' n=$l_group /etc/group | xargs)\""
      fi
   done < <(cut -f1 -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

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Based on the Audit Procedure output, for each duplicated group name, determine which entry is correct and make each group name unique. Use vigr to safely edit the group database and either remove the redundant entry or rename it to a unique group name: # vigr File group ownerships will reflect the change automatically as long as each group has a unique GID.

Check this host

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

tmaegis scan --target linux