Duplicate Group IDs (GIDs) must not exist for multiple groups.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-216191 | SRG-OS-000480 | SOL-11.1-070120 | SV-216191r959010_rule | 2026-02-19 | 3 |
Description
User groups must be assigned unique GIDs for accountability and to ensure appropriate access protections.
ℹ️ Check
The root role is required.
Check that group IDs are unique.
# getent group | cut -f3 -d":" | sort -n | uniq -c |\
while read x ; do
[ -z "${x}" ] && break
set - $x
if [ $1 -gt 1 ]; then
grps=`getent group | nawk -F: '($3 == n) { print $1
}' n=$2 | xargs`
echo "Duplicate GID ($2): ${grps}"
fi
done
If output is produced, this is a finding.
✔️ Fix
The root role is required.
Work with each respective group owner to remediate this issue and ensure that the group ownership of their files are set to an appropriate value.