Ensure nosuid option set on /dev/shm partition

Cómo se verifica

Método de auditoría: Comando de shell

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

Salida esperada

compliant

Cómo se corrige

Método de corrección: Guía o parche de infraestructura

- IF - a separate partition exists for /dev/shm. Edit the /etc/fstab file and add nosuid to the fourth field (mounting options) for the /dev/shm partition. See the fstab(5) manual page for more information. Example: tmpfs /dev/shm tmpfs defaults,rw,nosuid,nodev,noexec,relatime 0 0 Run the following command to remount /dev/shm with the configured options: # mount -o remount /dev/shm Note: It is recommended to use tmpfs as the device/filesystem type as /dev/shm is used as shared memory space by applications.

Verificar este host

Ejecute esto en un equipo que tenga permiso para auditar. El escaneo es de solo lectura.

tmaegis scan --target linux