The system must set strict multihoming.

From Solaris 11 SPARC Security Technical Implementation Guide

Associated with: CCI-000366

SV-61065r1_rule The system must set strict multihoming.

Vulnerability discussion

These settings control whether a packet arriving on a non-forwarding interface can be accepted for an IP address that is not explicitly configured on that interface.This rule is NA for documented systems that have interfaces that cross strict networking domains (for example, a firewall, a router, or a VPN node).

Check content

Determine if strict multihoming is configured. # ipadm show-prop -p _strict_dst_multihoming -co current ipv4 # ipadm show-prop -p _strict_dst_multihoming -co current ipv6 If the output of all commands is not "1", this is a finding.

Fix text

The Network Management profile is required. Disable strict multihoming for IPv4 and IPv6. # pfexec ipadm set-prop -p _strict_dst_multihoming=1 ipv4 # pfexec ipadm set-prop -p _strict_dst_multihoming=1 ipv6

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