Linux distributions
TMA-RHEL9-5.4.2.3
Ensure group root is the only GID 0 group
SedangLevel 1Otomatislinux
Deskripsi
Groups are defined in /etc/group, each identified by a group ID (GID). GID 0 is reserved for the root group, the privileged group associated with the superuser.
Cara pemeriksaan
Metode audit: Perintah shell
shell
alt0() { command -v awk >/dev/null 2>&1 || { echo "step1: awk not installed"; return 1; }; o=$(bash -c 'awk -F: '"'"'($3 == 0) { print $1 }'"'"' /etc/group' 2>&1); printf '%s\n' "$o" | tr -s ' \t' ' ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Only root should be returned.' || { echo step1: missing 'Only root should be returned.'; return 1; }; }; if alt0; then echo compliant; fi- Output yang diharapkan
compliant
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
Run the following command to reassign any group other than root that has GID 0 to an unused GID: # groupmod -g <NEW_GID> <groupname> Example: # groupmod -g 200 legacyadmins If the root group's GID is not 0, run the following command to reset it: # groupmod -g 0 root
Properti
- Sistem operasi
- rhel-9
- Tag
- cis-convertedlinux
- Referensi
- CIS Red Hat Enterprise Linux 9 Benchmark v3.0.0 - 5.4.2.3
Periksa host ini
Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.
shell
tmaegis scan --target linux