Ensure NFS and RPC are not enabled

MediaNivel 1Automatizadalinux

Descripción

The Network File System (NFS) is one of the first and most widely distributed file systems in the UNIX environment. It provides the ability for systems to mount file systems of other servers through the network.

Cómo se verifica

Método de auditoría: Comando de shell

shell

alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled nfs' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step1: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status nfs' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step2: missing 'Active: inactive (dead)'; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step3: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled nfs-server' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step3: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step4: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status nfs-server' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step4: missing 'Active: inactive (dead)'; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step5: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rpcbind' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step5: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step6: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl status rpcbind' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'Active: inactive (dead)' || { echo step6: missing 'Active: inactive (dead)'; return 1; }; }; if alt0; then echo compliant; fi

Salida esperada: compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

Run the following commands to disable nfs, nfs-server and rpcbind: # systemctl disable nfs # systemctl disable nfs-server # systemctl disable rpcbind # systemctl stop nfs # systemctl stop nfs-server # systemctl stop rpcbind

Propiedades

Sistemas operativos: alinux-2
Etiquetas: cis-convertedlinux
Referencia: CIS Aliyun Linux 2 Benchmark v1.0.0 ARCHIVE - 2.1.7

Verificar este host

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

shell

tmaegis scan --target linux