Details
The nosuid mount option specifies that the filesystem cannot contain setuid files.
Rationale:
Setting this option on a file system prevents users from introducing privileged programs
onto the system and allowing non-root users to execute them.
Solution
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.
Run the following command to remount /dev/shm :
# mount -o remount,nosuid /dev/shm
Notes:
Some distributions mount /dev/shm through other means and require /dev/shm to be
added to /etc/fstab even though it is already being mounted on boot. Others may
configure /dev/shm in other locations and may override /etc/fstab configuration. Consult
the documentation appropriate for your distribution.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.