Ensure noexec option set on /dev/shm partition

MittelStufe 1Automatisiertcos

Beschreibung

The noexec mount option specifies that the filesystem cannot contain executable binaries. Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

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

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Run the following command to remount /dev/shm: # mount -o remount,noexec /dev/shm /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 - 1.1.12 Ensure noexec option set on /dev/shm partition

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