Container-Optimized OS
TMA-COS-1.1.4
Ensure nosuid option set on /tmp partition
MittelStufe 1Automatisiertcos
Beschreibung
The nosuid mount option specifies that the filesystem cannot contain setuid files. Since the /tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot create setuid files in /tmp .
So wird geprüft
Prüfmethode: Shell-Befehl
shell
if ! findmnt -kn /tmp >/dev/null 2>&1; then echo compliant; elif findmnt -kn /tmp | grep -qw -- nosuid; then echo compliant; else echo /tmp' is mounted without nosuid'; fi- Erwartete Ausgabe
compliant
So wird behoben
Behebungsmethode: Anleitung oder Infrastruktur-Patch
Run the following command to remount /tmp : # mount -o remount,nosuid /tmp /etc is stateless on Container-Optimized OS. Therefore, /etc cannot be used to make these changes persistent across reboots. The steps mentioned above needs to be performed after every boot.
Eigenschaften
- Betriebssysteme
- Beliebig
- Tags
- container-optimized-oscos
- Referenz
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 1.1.4 Ensure nosuid option set on /tmp partition
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shell
tmaegis scan --target cos