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


Finding ID Version Rule ID IA Controls Severity
V-89619 VRAU-SL-000500 SV-100269r1_rule Medium
The 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.
VMware vRealize Automation 7.x SLES Security Technical Implementation Guide 2018-10-12


Check Text ( C-89311r1_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-96361r1_fix)
Prevent the SCTP protocol handler for dynamic loading:

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