TMA-AIX-4.4.3.1
Ensure only / permits device files.
Deskripsi
The filesystem mount option nodev ensures that special device files are not recognized as device files. This recommendation audits all rootvg filesystems to ensure that only the root filesystem '/' allows the use of device special files. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.
Cara pemeriksaan
Metode audit: Perintah shell
command -v lsfs >/dev/null 2>&1 || exit 1; out=$( { lsfs | grep jfs | egrep -v "/dev/hd4|nodev"; mount | grep jfs | egrep -v "/dev/hd4|nodev" ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20- Output yang diharapkan
compliant
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
The following command remounts filesystems with 'nodev' added: mount | grep jfs | /usr/bin/egrep -v "/dev/hd4|nodev" | while read lv fs jfs m d t options do mount -o remount,${options},nodev $fs done The following command updates the stanza in /etc/filesystems lsfs | grep jfs | /usr/bin/egrep -v "/dev/hd4|nodev" | while read lv node fs jfs size options rest do if [ ${options} == "--" ]; then chfs -a options=nodev $fs else chfs -a options=${options},nodev $fs fi done
Properti
- Sistem operasi
- Apa saja
- Tag
- aixpermissions
- Referensi
- CIS IBM AIX 7 Benchmark v1.2.0 - 4.4.3.1 Ensure only / permits device files.
Periksa host ini
Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.
tmaegis scan --target aix