1.1.7.3 Ensure nosuid option set on /home partition

Information

The nosuid mount option specifies that the filesystem cannot contain setuid files.

Since the /home filesystem is only intended for user file storage, set this option to ensure that users cannot create setuid files in /home

Solution

Edit the /etc/fstab file and add nosuid to the fourth field (mounting options) for the /home partition.

Example:

<device> /home <fstype> defaults,rw,nosuid,nodev,noexec,relatime 0 0

Run the following command to remount /home with the configured options:

# mount -o remount /home

See Also

https://workbench.cisecurity.org/files/3796

Item Details

Category: ACCESS CONTROL, MEDIA PROTECTION

References: 800-53|AC-3, 800-53|AC-5, 800-53|AC-6, 800-53|MP-2, CSCv7|14.6

Plugin: Unix

Control ID: f360379af8525468563899747de1f9a70984ee8e619ca59afc1886681da380e5