The Internetwork Packet Exchange (IPX) protocol must be disabled or not installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22520	GEN007200	SV-46101r1_rule		Medium

Description
The IPX protocol is a network-layer protocol no longer in common use. Binding this protocol to the network stack increases the attack surface of the host. Unprivileged local processes may be able to cause the system to dynamically load a protocol handler by opening a socket using the protocol.

STIG	Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide	2018-09-19

Details

Check Text ( C-43358r1_chk )
Check that the IPX protocol handler is prevented from dynamic loading. # grep 'install ipx' /etc/modprobe.conf /etc/modprbe.conf.local /etc/modprobe.d/* | grep ‘/bin/true’ If no result is returned, this is a finding.

Fix Text (F-39445r1_fix)
Prevent the IPX protocol handler for dynamic loading. # echo "install ipx /bin/true" >> /etc/modprobe.conf.local