1.1.1.3 Ensure mounting of jffs2 filesystems is disabled - /etc/modprobe.d/*

Information

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.

Solution

Edit or create the file /etc/modprobe.d/CIS.conf and add the following line:

install jffs2 /bin/true

Run the following command to unload the jffs2 module:

# rmmod jffs2

See Also

https://workbench.cisecurity.org/files/3738

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7b.

Plugin: Unix

Control ID: 94627797c2223a07ad0a9f9fa66e95bb9fce18a14cd64ede16f84b5536ed49d0