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1.1.3.3 Ensure nosuid option set on /var partition

Audit#

Verify that the nosuid option is set for the /var mount.

Run the following command to verify that the nosuid mount option is set.

Example:

# findmnt --kernel /var
/var /dev/sdb ext4 rw,nosuid,nodev,relatime,seclabel

IF output is produced, ensure it includes the nosuid option.

Remediation#

IF the /var partition exists, edit the /etc/fstab file and add nosuid to the fourth field (mounting options) for the /var partition.

Example:

<device> /var <fstype> defaults,rw,nosuid,nodev,relatime 0 0
Run the following command to remount /var with the configured options:
# mount -o remount /var