1.1.1.1 Ensure mounting of udf filesystems is disabled - modprobe

Information

The udf filesystem type is the universal disk format used to implement ISO/IEC 13346 and ECMA-167 specifications. This is an open vendor filesystem type for data storage on a broad range of media. This filesystem type is necessary to support writing DVDs and newer optical disc formats.

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 a file in the /etc/modprobe.d/ directory ending in .conf
Example: vim /etc/modprobe.d/udf.conf
and add the following line:

install udf /bin/true

Run the following command to unload the udf module:

# rmmod udf

See Also

https://workbench.cisecurity.org/files/3659

Item Details

Category: ACCESS CONTROL, CONFIGURATION MANAGEMENT, IDENTIFICATION AND AUTHENTICATION

References: 800-53|AC-2, 800-53|CM-1, 800-53|CM-2, 800-53|CM-6, 800-53|CM-7, 800-53|IA-5, CSCv7|3.3, CSCv7|5.1

Plugin: Unix

Control ID: 0416b2e47eb81f8e955557c5760bdbba39e39e04b14c7d3b2a2e741d1a18ee09