Ensure only / permits device files.

OrtaDüzey 1Otomatikaix

Açıklama

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.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

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

Beklenen çıktı: compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

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

Özellikler

İşletim sistemleri: Herhangi biri
Etiketler: aixpermissions
Referans: CIS IBM AIX 7 Benchmark v1.2.0 - 4.4.3.1 Ensure only / permits device files.

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shell

tmaegis scan --target aix