1.1.21 Disable Mounting of hfs Filesystems - install hfs /bin/true'

Information

The hfs filesystem type is a hierarchical filesystem that allows you to mount Mac OS filesystems.

Rationale:

Removing support for unneeded filesystem types reduces the local attack surface of the server. 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: /etc/modprobe.d/hfs.conf
Add the following line:

install hfs /bin/true

Default Value:

OS Default: N/A

See Also

https://workbench.cisecurity.org/files/3096

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CSCv6|3.1, CSCv7|5.1

Plugin: Unix

Control ID: e783db603c916a28a3169e8f7ee26f004d0675348a90006189517e0716337c52