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/2420

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-4, CSCv6|9.1, CSCv7|9.2

Plugin: Unix

Control ID: e8e95df2f114f6cd19f92a497eff925ff8e8e1d80eeabee6fd2c45623316348d