The Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-207148	SRG-NET-000343-RTR-000002	SV-207148r856632_rule		Medium

Description

MSDP peering with customer network routers presents additional risks to the core, whether from a rogue or misconfigured MSDP-enabled router. MSDP password authentication is used to validate each segment sent on the TCP connection between MSDP peers, protecting the MSDP session against the threat of spoofed packets being injected into the TCP connection stream.

STIG	Date
Router Security Requirements Guide	2024-05-28

Details

Check Text (C-7409r382427_chk)

Review the router configuration to determine if received MSDP packets are authenticated.

If the router does not require MSDP authentication, this is a finding.

Fix Text (F-7409r382428_fix)

Ensure all MSDP packets received by an MSDP router are authenticated.