Container-Optimized OS
TMA-COS-2.1.3
Ensure NFS and RPC are not enabled
Описание
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. If the system does not export NFS shares or act as an NFS client, it is recommended that these services be disabled to reduce the remote attack surface.
Как проверяется
Метод проверки: Команда оболочки
alt0() { command -v systemctl >/dev/null 2>&1 || { echo "step1: 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/ $//' | grep -Fxq -- disabled || { echo step1: missing disabled; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled rpcbind' 2>&1); printf '%s\n' "$o" | tr -s ' \t' ' ' | sed 's/^ //;s/ $//' | grep -Fxq -- disabled || { echo step2: missing disabled; return 1; }; }; if alt0; then echo compliant; fi- Ожидаемый вывод
compliant
Как исправляется
Метод исправления: Рекомендация или патч инфраструктуры
Run the following commands to disable the nfs-server and rpcbind: # systemctl --now disable nfs-server # systemctl --now disable rpcbind /etc is stateless on Container-Optimized OS. Therefore, the steps mentioned above needs to be performed after every boot.
Свойства
- Операционные системы
- Любая
- Теги
- container-optimized-oscos
- Источник
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 2.1.3 Ensure NFS and RPC are not enabled
Проверить этот хост
Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.
tmaegis scan --target cos