1.1.1.3 Ensure mounting of jffs2 filesystems is disabled (Scored)
Profile Applicability
Level 1 - Server Level 1 - Workstation
Description
The jffs2
(journaling flash filesystem 2) filesystem type is a log-structured filesystem used in flash memory devices.
Rationale
Removing support for unneeded filesystem types reduces the local attack surface of the server. If this filesystem type is not needed, disable it.
Audit
Run the following commands and verify the output is as indicated:
# modprobe -n -v jffs2 install /bin/true # lsmod | grep jffs2 <No output>
Remediation
Edit or create the file /etc/modprobe.d/CIS.conf
and add the following line:
install jffs2 /bin/true