3.4.2 Ensure SCTP is disabled - lsmod

Information

The Stream Control Transmission Protocol (SCTP) is a transport layer protocol used to support message oriented communication, with several streams of messages in one connection. It serves a similar function as TCP and UDP, incorporating features of both. It is message-oriented like UDP, and ensures reliable in-sequence transport of messages with congestion control like TCP.

Rationale:

If the protocol is not being used, it is recommended that kernel module not be loaded, disabling the service 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/sctp.conf
and add the following line:

install sctp /bin/true

See Also

https://workbench.cisecurity.org/files/3682

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7, CSCv7|9.2

Plugin: Unix

Control ID: c66008da6d36f3ce6fafd7f1c33242aed5961d7636903c4d551b2b5bb417e5c6