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

From VMware vRealize Automation 7.x SLES Security Technical Implementation Guide

Part of SRG-OS-000096-GPOS-00050

Associated with: CCI-000382

SV-100269r1_rule The Stream Control Transmission Protocol (SCTP) must be disabled unless required.

Vulnerability discussion

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.

Check content

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

Prevent the SCTP protocol handler for dynamic loading: # echo "install sctp /bin/true" >> /etc/modprobe.conf.local

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer