Ensure avahi daemon services are not in use

СреднийУровень 1Автоматическаяlinux

Описание

Avahi is a free zeroconf implementation, including a system for multicast DNS/DNS-SD service discovery. Avahi allows programs to publish and discover services and hosts running on a local network with no specific configuration. For example, a user can plug a computer into a network and Avahi automatically finds printers to print to, files to look at and people to talk to, as well as network services running on the machine.

Как проверяется

Метод проверки: Команда оболочки

shell

alt0() { command -v rpm >/dev/null 2>&1 || { echo "step1: rpm not installed"; return 1; }; o=$(bash -c 'rpm -q avahi' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'package avahi is not installed' || { echo step1: missing 'package avahi is not installed'; return 1; }; }; alt1() { command -v grep >/dev/null 2>&1 || { echo "step1: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step1: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled avahi-daemon.socket avahi-daemon.service 2>/dev/null | grep '"'"'enabled'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; command -v grep >/dev/null 2>&1 || { echo "step2: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-active avahi-daemon.socket avahi-daemon.service 2>/dev/null | grep '"'"'^active'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step2: $o" | head -c 300; return 1; }; }; if alt0 || alt1; then echo compliant; fi

Ожидаемый вывод: compliant

Как исправляется

Метод исправления: Рекомендация или патч инфраструктуры

Run the following commands to stop avahi-daemon.socket and avahi- daemon.service, and remove the avahi package: # systemctl stop avahi-daemon.socket avahi-daemon.service # dnf remove avahi - OR - - IF - the avahi package is required as a dependency: Run the following commands to stop and mask the avahi-daemon.socket and avahi- daemon.service: # systemctl stop avahi-daemon.socket avahi-daemon.service # systemctl mask avahi-daemon.socket avahi-daemon.service

Свойства

Операционные системы: alinux-3
Теги: cis-convertedlinux
Источник: CIS Alibaba Cloud Linux 3 Benchmark v2.0.0 - 2.1.2

Проверить этот хост

Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.

shell

tmaegis scan --target linux