3.4.1 Ensure DCCP is disabled - modprobe

Information

The Datagram Congestion Control Protocol (DCCP) is a transport layer protocol that supports streaming media and telephony. DCCP provides a way to gain access to congestion control, without having to do it at the application layer, but does not provide in-sequence delivery.

Rationale:

If the protocol is not required, it is recommended that the drivers not be installed to reduce the potential attack surface.

Solution

Edit or create a file in the /etc/modprobe.d/ directory ending in .conf
Example: vim /etc/modprobe.d/dccp.conf
and add the following line:

install dccp /bin/true

See Also

https://workbench.cisecurity.org/files/3399

Item Details

Category: SECURITY ASSESSMENT AND AUTHORIZATION, SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|CA-9, 800-53|SC-7, 800-53|SC-7(5), CSCv6|9.1, CSCv7|9.2

Plugin: Unix

Control ID: 6a6e389f26c6206906f2f65f8354b454c4678fb50ff4b6ca4615323cf97ae9dc