Ensure noexec option set on /var partition

НискаНиво 2Аутоматскаcos

Опис

The noexec mount option specifies that the filesystem cannot contain executable binaries. Since the /var filesystem is only intended for services to write data and not execute, set this option to ensure that users cannot run executable binaries from /var.

Како се проверава

Метод провере: Команда љуске

shell

if ! findmnt -kn /var >/dev/null 2>&1; then echo compliant; elif findmnt -kn /var | grep -qw -- noexec; then echo compliant; else echo /var' is mounted without noexec'; fi

Очекивани излаз: compliant

Како се исправља

Метод исправке: Смерница или закрпа инфраструктуре

Run the following command to remount /var : # mount -o remount,noexec /var /etc is stateless on Container-Optimized OS. Therefore, /etc cannot be used to make these changes persistent across reboots. The steps mentioned above needs to be performed after every boot.

Својства

Оперативни системи: Било који
Ознаке: container-optimized-oscos
Референца: CIS Google Container-Optimized OS Benchmark v1.2.0 - 1.1.7 Ensure noexec option set on /var partition

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shell

tmaegis scan --target cos --level 2