Ensure nodev option set on /tmp partition

How it is checked

Audit method: Shell command

if ! findmnt -kn /tmp >/dev/null 2>&1; then echo compliant; elif findmnt -kn -o OPTIONS /tmp | tr ',' '\n' | grep -qx -- nodev; then echo compliant; else echo '/tmp is mounted without nodev'; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /tmp partition. See the fstab(5) manual page for more information. Run the following command to remount /tmp : # mount -o remount,nodev /tmp OR If systemd tmp.mount is configured: Edit /etc/systemd/system/local-fs.target.wants/tmp.mount to add nodev to the /tmp mount options: [Mount] Options=mode=1777,strictatime,noexec,nodev,nosuid Run the following command to remount /tmp : # mount -o remount,nodev /tmp

Check this host

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

tmaegis scan --target ros