# 1.1.1.3 Ensure mounting of jffs2 filesystems is disabled # # 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 system. 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 # # # Remediation # =========== # Edit or create the file /etc/modprobe.d/CIS.conf and add the following line: # # install jffs2 /bin/true # parameters: linux: system: kernel: module: jffs2: install: command: /bin/true