The system must prevent local applications from generating source-routed packets.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-58453	AOSX-09-001215	SV-72883r1_rule		Medium

Description
A source-routed packet attempts to specify the network path that the system should take. If the system is not configured to block the sending of source-routed packets, an attacker can redirect the system's network traffic.

STIG	Date
Apple OS X 10.9 (Mavericks) Workstation Security Technical Implementation Guide	2017-01-05

Details

Check Text ( C-59289r1_chk )
To check if the system is configured to forward source-routed packets, run the following command: sysctl net.inet.ip.sourceroute If the value is not set to '0', this is a finding.

Fix Text (F-63777r1_fix)
To configure the system to not forward source-routed packets, add the following line to /etc/sysctl.conf: net.inet.ip.sourceroute=0