The system must not accept source-routed IPv6 packets.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22554	GEN007940	SV-42323r1_rule	ECSC-1	Medium

Description
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the handling of source-routed traffic destined to the system itself, not to traffic forwarded by the system to another, such as when IPv6 forwarding is enabled and the system is functioning as a router.

Description

Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the handling of source-routed traffic destined to the system itself, not to traffic forwarded by the system to another, such as when IPv6 forwarding is enabled and the system is functioning as a router.

STIG	Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE	2015-10-01

Details

Check Text ( C-27888r1_chk )
Verify the system is configured to not forward IPv6 source-routed packets. # ndd /dev/ip6 ip6_forward_src_routed If the returned value is not 0, this is a finding.

Fix Text (F-24186r2_fix)
Configure the system to not forward IPv6 source-routed packets. # ndd -set /dev/ip6 ip6_forward_src_routed 0 Also, add this command to a system startup script.