TMA-ROS1-1.5.1

Ensure permissions on bootloader config are configured

MediaNivel 1Automatizadaros

Descripción

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.

Cómo se verifica

Método de auditoría: Comando de 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

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

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

Propiedades

Sistemas operativos: Cualquiera
Etiquetas: rosros1melodicsystem
Referencia: CIS ROS Melodic Benchmark v1.0.0 - 1.5.1 Ensure permissions on bootloader config are configured

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

shell

tmaegis scan --target ros