Ensure access to /etc/cron.yearly is configured

MediaNivel 1Automatizadalinux

Descripción

The /etc/cron.yearly directory contains system cron jobs that need to run on an annual basis. The files in this directory cannot be manipulated by the crontab command but are instead edited by system administrators using a text editor. The commands below restrict read/write and search access to user and group root, preventing regular users from accessing this directory.

Cómo se verifica

Método de auditoría: Comando de shell

shell

alt0() { s=$(stat -Lc '%a %u %g' /etc/cron.yearly/ 2>&1) || { echo "step1: $s"; return 1; }; set -- $s; m=$((8#$1)); [ $((m & ~0700)) -eq 0 ] && [ "$2" = 0 ] && [ "$3" = 0 ] || { echo "step1: /etc/cron.yearly/ is mode $1 uid $2 gid $3, want 700 or stricter, uid 0, gid 0"; return 1; }; }; if alt0; then echo compliant; fi

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

- IF - cron is installed on the system: Run the following commands to set ownership and permissions on the /etc/cron.yearly directory: # chown root:root /etc/cron.yearly/ # chmod og-rwx /etc/cron.yearly/

Propiedades

Sistemas operativos: alinux-3
Etiquetas: cis-convertedlinux
Referencia: CIS Alibaba Cloud Linux 3 Benchmark v2.0.0 - 2.4.1.7

Verificar este host

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

shell

tmaegis scan --target linux