Detections
Analytics

1.1.1.1 Ensure mounting of cramfs filesystems is disabled - modprobe

Warning! Audit Deprecated

This audit has been deprecated and will be removed in a future update.

View Next Audit Version

Information

The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image.
 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: vim /etc/modprobe.d/cramfs.conf
 and add the following line:
 install cramfs /bin/true
 Run the following command to unload the cramfs module:
 # rmmod cramfs

See Also

https://workbench.cisecurity.org/files/2429

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7, CSCv6|13, CSCv7|13

Plugin: Unix

Control ID: f36048debd6846e78f7760d25a99963e9ba8f2ef6b8eb8b56d9af7035d56b1ec