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V-240448

CAT II (Medium)

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

Rule ID

SV-240448r671085_rule

STIG

VMware vRealize Automation 7.x SLES Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-000382

Discussion

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.

Check Content

Run the following command:

iptables --list | grep "udplite"

If no result is displayed, this is a finding.

Fix Text

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