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The Lightweight User Datagram Protocol (UDP-Lite) must be disabled unless required.


Finding ID Version Rule ID IA Controls Severity
V-89673 VRAU-SL-000635 SV-100323r1_rule Medium
The Lightweight User Datagram Protocol (UDP-Lite) is a proposed 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 system 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-89365r1_chk )
Run the following command:

iptables --list | grep "udplite"

If no result is displayed, this is a finding.
Fix Text (F-96415r1_fix)
Configure the system to prevent the dynamic loading of the UDP-Lite protocol handler:

Add the following rule to the iptables firewall ruleset:

# iptables -A INPUT -p udplite -j DROP