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

Associated with: CCI-001958

SV-93047r1_rule The Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.

Vulnerability discussion

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.

Check content

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

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

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.