3.1.2 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:

printf '
install sctp /bin/true
' >> /etc/modprobe.d/sctp.conf

See Also

https://workbench.cisecurity.org/files/3742

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, 800-53|CM-7, CSCv7|9.2

Plugin: Unix

Control ID: 03eea1a875e87c6859b2378c6ff5d151f7af29e34e247f6fd1bb2591b019b5d7