Azure Container Linux
TMA-AZURE-CONTAINER-LINUX-3.1.4
Ensure sctp kernel module is not available
Описание
The Stream Control Transmission Protocol (SCTP) is a transport layer protocol used to support message oriented communication, with several streams of messages in one connection. It serves a similar function as TCP and UDP, incorporating features of both. It is message-oriented like UDP, and ensures reliable in-sequence transport of messages with congestion control like TCP.
Как проверяется
Метод проверки: Команда оболочки
m=sctp; found=$(find /lib/modules/$(uname -r)/kernel /usr/lib/modules/$(uname -r)/kernel -path "*/sctp*" 2>/dev/null | head -n1); if [ -z "$found" ]; then echo compliant; exit 0; fi; lsmod | awk '{print $1}' | grep -Fxq -- "${m//-/_}" && { echo "$m is loaded"; exit 0; }; cfg=$(modprobe --showconfig 2>/dev/null); printf '%s\n' "$cfg" | grep -Pq -- "^\h*blacklist\h+${m//-/_}\b" || { echo "$m is not blacklisted"; exit 0; }; printf '%s\n' "$cfg" | grep -Pq -- "^\h*install\h+${m//-/_}\h+(/usr)?/bin/(true|false)\b" || { echo "$m install is not disabled"; exit 0; }; echo compliant- Ожидаемый вывод
compliant
Как исправляется
Метод исправления: Рекомендация или патч инфраструктуры
Run the following to unload and disable the sctp kernel module. This can also be done by running the script included below. Run the following commands to unload the sctp kernel module: # modprobe -r sctp 2>/dev/null # rmmod sctp 2>/dev/null Perform the following to disable the sctp kernel module: Create a file ending in .conf with install sctp /bin/false in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "install sctp /bin/false" >> /etc/modprobe.d/sctp.conf Create a file ending in .conf with blacklist sctp in the /etc/modprobe.d/ directory Example: # printf '\n%s\n' "blacklist sctp" >> /etc/modprobe.d/sctp.conf
Свойства
- Операционные системы
- Любая
- Теги
- azure-container-linuxcis-convertedkernelmodules
- Источник
- CIS Azure Container Linux Benchmark v1.0.0 - 3.1.4 Ensure sctp kernel module is not available
Проверить этот хост
Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.
tmaegis scan --target azure-container-linux --level 2