Ensure permissions on bootloader config are configured

SedangLevel 1Otomatisros

Deskripsi

The grub configuration file contains information on boot settings and passwords for unlocking boot options. The grub configuration is usually grub.cfg stored in /boot/grub/. The audit requires /boot/grub/grub.cfg owned by root:root with no group or other permissions. Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

Cara pemeriksaan

Metode audit: Perintah shell

shell

[ -e /boot/grub/grub.cfg ] || { echo '/boot/grub/grub.cfg not found'; exit 1; }
set -- $(stat -Lc '%a %u %g' /boot/grub/grub.cfg) || exit 1
m=$((8#$1)); [ $((m & ~8#0700)) -eq 0 ] || { echo "/boot/grub/grub.cfg mode $1 exceeds 0700"; exit 1; }
[ "$2" = 0 ] || { echo "/boot/grub/grub.cfg uid $2"; exit 1; }
case " 0 " in *" $3 "*) echo compliant ;; *) echo "/boot/grub/grub.cfg gid $3" ;; esac

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

Run the following commands to set permissions on your grub configuration: # chown root:root /boot/grub/grub.cfg # chmod og-rwx /boot/grub/grub.cfg

Properti

Sistem operasi: Apa saja
Tag: rosros1melodicsystem
Referensi: CIS ROS Melodic Benchmark v1.0.0 - 1.5.1 Ensure permissions on bootloader config are configured

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target ros