TMA-COS-1.1.12
Ensure noexec option set on /dev/shm partition
MediaNivel 1Automatizadacos
Descripción
The noexec mount option specifies that the filesystem cannot contain executable binaries. Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.
Cómo se verifica
Método de auditoría: Comando de shell
shell
if ! findmnt -kn /dev/shm >/dev/null 2>&1; then echo compliant; elif findmnt -kn /dev/shm | grep -qw -- noexec; then echo compliant; else echo /dev/shm' is mounted without noexec'; fi- Salida esperada
compliant
Cómo se corrige
Método de corrección: Guía o parche de infraestructura
Run the following command to remount /dev/shm: # mount -o remount,noexec /dev/shm /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.
Propiedades
- Sistemas operativos
- Cualquiera
- Etiquetas
- container-optimized-oscos
- Referencia
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 1.1.12 Ensure noexec option set on /dev/shm partition
Verificar este host
Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.
shell
tmaegis scan --target cos