Ensure nosuid option set on /var/tmp partition

How it is checked

Audit method: Shell command

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

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Edit the /etc/fstab file and add nosuid to the fourth field (mounting options) for the /var/tmp partition. See the fstab(5) manual page for more information. Run the following command to remount /var/tmp : # mount -o remount,nosuid /var/tmp

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target linux