TMA-ROS1-1.1.4

Ensure nosuid option set on /tmp partition

MittelStufe 1Automatisiertros

Beschreibung

The nosuid mount option specifies that the filesystem cannot contain setuid files. The audit requires the nosuid mount option on /tmp when it is a separate mount (findmnt); not applicable otherwise. Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

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

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Edit the /etc/fstab file and add nosuid 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,nosuid /tmp or Edit /etc/systemd/system/local-fs.target.wants/tmp.mount to add nosuid to the /tmp mount options: [Mount] Options=mode=1777,strictatime,noexec,nodev,nosuid Run the following command to remount /tmp : # mount -o remount,nosuid /tmp

Eigenschaften

Betriebssysteme: Beliebig
Tags: rosros1melodicsystem
Referenz: CIS ROS Melodic Benchmark v1.0.0 - 1.1.4 Ensure nosuid option set on /tmp partition

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shell

tmaegis scan --target ros