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The Stream Control Transmission Protocol (SCTP) must be disabled unless required.


Overview

Finding ID Version Rule ID IA Controls Severity
V-239517 VROM-SL-000490 SV-239517r662002_rule Medium
Description
The Stream Control Transmission Protocol (SCTP) is an IETF-standardized transport layer protocol. This protocol is not yet widely used. Binding this protocol to the network stack increases the attack surface of the host. Unprivileged local processes may be able to cause the kernel to dynamically load a protocol handler by opening a socket using the protocol.
STIG Date
VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide 2021-07-01

Details

Check Text ( C-42750r662000_chk )
Verify the SCTP protocol handler is prevented from dynamic loading:

# grep "install sctp /bin/true" /etc/modprobe.conf /etc/modprobe.conf.local /etc/modprobe.d/*

If no result is returned, this is a finding.
Fix Text (F-42709r662001_fix)
Prevent the SCTP protocol handler from dynamic loading:

# echo "install sctp /bin/true" >> /etc/modprobe.conf.local