Ensure tftp server is not enabled

MoyenneNiveau 1Automatiséelinux

Description

Trivial File Transfer Protocol (TFTP) is a simple file transfer protocol, typically used to automatically transfer configuration or boot machines from a boot server. The package tftp-server is used to define and support a TFTP server.

Méthode de vérification

Méthode d'audit: Commande shell

shell

alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled tftp.socket' 2>&1); printf '%s\n' "$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 tftp.socket' 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 tftp.service' 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 tftp.service' 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; }; }; if alt0; then echo compliant; fi

Sortie attendue: compliant

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

Run the following command to disable tftp: # systemctl disable tftp.socket # systemctl stop tftp.socket # systemctl disable tftp.service # systemctl stop tftp.service

Propriétés

Systèmes d'exploitation: alinux-2
Étiquettes: cis-convertedlinux
Référence: CIS Aliyun Linux 2 Benchmark v1.0.0 ARCHIVE - 2.1.19

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target linux