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Cisco IOS Router RTR Security Technical Implementation Guide


Overview

Date Finding Count (98)
2022-09-14 CAT I (High): 9 CAT II (Med): 62 CAT III (Low): 27
STIG Description
This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.

Available Profiles



Findings (MAC II - Mission Support Public)

Finding ID Severity Title
V-216572 High The Cisco perimeter router must be configured to deny network traffic by default and allow network traffic by exception.
V-216576 High The Cisco perimeter router must be configured to protect an enclave connected to an alternate gateway by using an inbound filter that only permits packets with destination addresses within the sites address space.
V-216577 High The Cisco perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
V-216561 High The Cisco router must be configured to restrict traffic destined to itself.
V-216989 High The Cisco perimeter router must be configured to restrict it from accepting outbound IP packets that contain an illegitimate address in the source address field via egress filter or by enabling Unicast Reverse Path Forwarding (uRPF).
V-216616 High The Cisco PE router must be configured to block any traffic that is destined to IP core infrastructure.
V-216615 High The Cisco PE router providing MPLS Virtual Private Wire Service (VPWS) must be configured to have the appropriate virtual circuit identification (VC ID) for each attachment circuit.
V-216612 High The Cisco PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance with the appropriate Route Target (RT).
V-216611 High The Cisco PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance bound to the appropriate physical or logical interfaces to maintain traffic separation between all MPLS L3VPNs.
V-216573 Medium The Cisco perimeter router must be configured to enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy.
V-216570 Medium The Cisco router must be configured to produce audit records containing information to establish the source of the events.
V-216992 Medium The Cisco BGP router must be configured to use a unique key for each autonomous system (AS) that it peers with.
V-216575 Medium The Cisco perimeter router must be configured to block inbound packets with source Bogon IP address prefixes.
V-216565 Medium The Cisco router must be configured to have Internet Control Message Protocol (ICMP) unreachable messages disabled on all external interfaces.
V-216567 Medium The Cisco router must be configured to have Internet Control Message Protocol (ICMP) redirect messages disabled on all external interfaces.
V-216566 Medium The Cisco router must be configured to have Internet Control Message Protocol (ICMP) mask reply messages disabled on all external interfaces.
V-216560 Medium The Cisco router must be configured to protect against or limit the effects of denial-of-service (DoS) attacks by employing control plane protection.
V-216563 Medium The Cisco router must be configured to have Gratuitous ARP disabled on all external interfaces.
V-216562 Medium The Cisco router must be configured to drop all fragmented Internet Control Message Protocol (ICMP) packets destined to itself.
V-216569 Medium The Cisco router must be configured to produce audit records containing information to establish where the events occurred.
V-216988 Medium The Cisco router must not be configured to have any feature enabled that calls home to the vendor.
V-230152 Medium The Cisco perimeter router must be configured to drop IPv6 packets containing an extension header with the Endpoint Identification option.
V-230155 Medium The Cisco perimeter router must be configured to drop IPv6 packets containing the NSAP address option within Destination Option header.
V-216600 Medium The Cisco BGP router must be configured to reject outbound route advertisements for any prefixes that do not belong to any customers or the local autonomous system (AS).
V-216601 Medium The Cisco BGP router must be configured to reject outbound route advertisements for any prefixes belonging to the IP core.
V-216604 Medium The Cisco BGP router must be configured to use the maximum prefixes feature to protect against route table flooding and prefix de-aggregation attacks.
V-216598 Medium The Cisco BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).
V-216599 Medium The Cisco BGP router must be configured to reject inbound route advertisements from a customer edge (CE) router for prefixes that are not allocated to that customer.
V-230145 Medium The Cisco perimeter router must be configured to drop IPv6 packets containing a Hop-by-Hop header with invalid option type values.
V-216613 Medium The Cisco PE router must be configured to have each VRF with the appropriate Route Distinguisher (RD).
V-216591 Medium The Cisco out-of-band management (OOBM) gateway router must be configured to not redistribute routes between the management network routing domain and the managed network routing domain.
V-216592 Medium The Cisco out-of-band management (OOBM) gateway router must be configured to block any traffic destined to itself that is not sourced from the OOBM network or the Network Operations Center (NOC).
V-216593 Medium The Cisco router must be configured to only permit management traffic that ingresses and egresses the out-of-band management (OOBM) interface.
V-216594 Medium The Cisco router providing connectivity to the Network Operations Center (NOC) must be configured to forward all in-band management traffic via an IPsec tunnel.
V-216614 Medium The Cisco PE router providing MPLS Layer 2 Virtual Private Network (L2VPN) services must be configured to authenticate targeted Label Distribution Protocol (LDP) sessions used to exchange virtual circuit (VC) information using a FIPS-approved message authentication code algorithm.
V-216582 Medium The Cisco perimeter router must be configured to filter egress traffic at the internal interface on an inbound direction.
V-216987 Medium The Cisco router must be configured to use keys with a duration not exceeding 180 days for authenticating routing protocol messages.
V-216986 Medium The Cisco router must be configured to implement message authentication for all control plane protocols.
V-216622 Medium The Cisco multicast router must be configured to disable Protocol Independent Multicast (PIM) on all interfaces that are not required to support multicast routing.
V-216586 Medium The Cisco perimeter router must be configured to have Proxy ARP disabled on all external interfaces.
V-216621 Medium The Cisco PE router must be configured to enforce a Quality-of-Service (QoS) policy to limit the effects of packet flooding denial-of-service (DoS) attacks.
V-216589 Medium The Cisco out-of-band management (OOBM) gateway router must be configured to forward only authorized management traffic to the Network Operations Center (NOC).
V-216588 Medium The Cisco out-of-band management (OOBM) gateway router must be configured to transport management traffic to the Network Operations Center (NOC) via dedicated circuit, MPLS/VPN service, or IPsec tunnel.
V-216628 Medium The Cisco multicast Rendezvous Point (RP) must be configured to rate limit the number of Protocol Independent Multicast (PIM) Register messages.
V-216581 Medium The Cisco perimeter router must be configured to filter ingress traffic at the external interface on an inbound direction.
V-216580 Medium The Cisco perimeter router must be configured to filter traffic destined to the enclave in accordance with the guidelines contained in DoD Instruction 8551.1.
V-216587 Medium The Cisco perimeter router must be configured to block all outbound management traffic.
V-216623 Medium The Cisco multicast router must be configured to bind a Protocol Independent Multicast (PIM) neighbor filter to interfaces that have PIM enabled.
V-230041 Medium The Cisco router must not be configured to use IPv6 Site Local Unicast addresses.
V-230047 Medium The Cisco perimeter router must be configured to drop IPv6 undetermined transport packets.
V-230044 Medium The Cisco perimeter router must be configured to suppress Router Advertisements on all external IPv6-enabled interfaces.
V-216631 Medium The Cisco multicast Designated Router (DR) must be configured to limit the number of mroute states resulting from Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Host Membership Reports.
V-216630 Medium The Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join a multicast group only from sources that have been approved by the organization.
V-216633 Medium The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to only accept MSDP packets from known MSDP peers.
V-216632 Medium The Cisco multicast Designated Router (DR) must be configured to set the shortest-path tree (SPT) threshold to infinity to minimalize source-group (S, G) state within the multicast topology where Any Source Multicast (ASM) is deployed.
V-216634 Medium The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.
V-216590 Medium The Cisco out-of-band management (OOBM) gateway router must be configured to have separate IGP instances for the managed network and management network.
V-216610 Medium The Cisco MPLS router must be configured to have TTL Propagation disabled.
V-216617 Medium The Cisco PE router must be configured with Unicast Reverse Path Forwarding (uRPF) loose mode enabled on all CE-facing interfaces.
V-230050 Medium The Cisco perimeter router must be configured drop IPv6 packets with a Routing Header type 0, 1, or 3–255.
V-216990 Medium The Cisco perimeter router must be configured to block all packets with any IP options.
V-216597 Medium The Cisco BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
V-216574 Medium The Cisco perimeter router must be configured to only allow incoming communications from authorized sources to be routed to authorized destinations.
V-216993 Medium The Cisco PE router must be configured to drop all packets with any IP options.
V-230149 Medium The Cisco perimeter router must be configured to drop IPv6 packets containing a Destination Option header with invalid option type values.
V-216559 Medium The Cisco router must not be configured to have any zero-touch deployment feature enabled when connected to an operational network.
V-216554 Medium The Cisco router must be configured to use encryption for routing protocol authentication.
V-216555 Medium The Cisco router must be configured to authenticate all routing protocol messages using NIST-validated FIPS 198-1 message authentication code algorithm.
V-216551 Medium The Cisco router must be configured to enforce approved authorizations for controlling the flow of information within the network based on organization-defined information flow control policies.
V-230158 Medium The Cisco perimeter router must be configured to drop IPv6 packets containing a Hop-by-Hop or Destination Option extension header with an undefined option type.
V-229030 Medium The Cisco router must be configured to have Cisco Express Forwarding enabled.
V-230038 Low The Cisco router must be configured to advertise a hop limit of at least 32 in Router Advertisement messages for IPv6 stateless auto-configuration deployments.
V-216571 Low The Cisco router must be configured to disable the auxiliary port unless it is connected to a secured modem providing encryption and authentication.
V-216578 Low The Cisco perimeter router must be configured to not redistribute static routes to an alternate gateway service provider into BGP or an IGP peering with the NIPRNet or to other autonomous systems.
V-216564 Low The Cisco router must be configured to have IP directed broadcast disabled on all interfaces.
V-216568 Low The Cisco router must be configured to log all packets that have been dropped at interfaces via an ACL.
V-216608 Low The Cisco MPLS router must be configured to synchronize IGP and LDP to minimize packet loss when an IGP adjacency is established prior to LDP peers completing label exchange.
V-216609 Low The MPLS router with RSVP-TE enabled must be configured with message pacing to adjust maximum burst and maximum number of RSVP messages to an output queue based on the link speed and input queue size of adjacent core routers.
V-216602 Low The Cisco BGP router must be configured to reject route advertisements from BGP peers that do not list their autonomous system (AS) number as the first AS in the AS_PATH attribute.
V-216603 Low The Cisco BGP router must be configured to reject route advertisements from CE routers with an originating AS in the AS_PATH attribute that does not belong to that customer.
V-216605 Low The Cisco BGP router must be configured to limit the prefix size on any inbound route advertisement to /24 or the least significant prefixes issued to the customer.
V-216606 Low The Cisco BGP router must be configured to use its loopback address as the source address for iBGP peering sessions.
V-216607 Low The Cisco MPLS router must be configured to use its loopback address as the source address for LDP peering sessions.
V-216619 Low The Cisco PE router must be configured to enforce a Quality-of-Service (QoS) policy in accordance with the QoS DODIN Technical Profile.
V-216624 Low The Cisco multicast edge router must be configured to establish boundaries for administratively scoped multicast traffic.
V-216625 Low The Cisco multicast Rendezvous Point (RP) router must be configured to limit the multicast forwarding cache so that its resources are not saturated by managing an overwhelming number of Protocol Independent Multicast (PIM) and Multicast Source Discovery Protocol (MSDP) source-active entries.
V-216585 Low The Cisco perimeter router must be configured to have Cisco Discovery Protocol (CDP) disabled on all external interfaces.
V-216629 Low The Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join only multicast groups that have been approved by the organization.
V-216626 Low The Cisco multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Register messages received from the Designated Router (DR) for any undesirable multicast groups and sources.
V-216627 Low The Cisco multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Join messages received from the Designated Router (DR) for any undesirable multicast groups.
V-216620 Low The Cisco P router must be configured to implement a Quality-of-Service (QoS) policy in accordance with the QoS DODIN Technical Profile.
V-216584 Low The Cisco perimeter router must be configured to have Link Layer Discovery Protocol (LLDP) disabled on all external interfaces.
V-216635 Low The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to filter received source-active multicast advertisements for any undesirable multicast groups and sources.
V-216637 Low The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to limit the amount of source-active messages it accepts on a per-peer basis.
V-216636 Low The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to filter source-active multicast advertisements to external MSDP peers to avoid global visibility of local-only multicast sources and groups.
V-216638 Low The Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to use a loopback address as the source address when originating MSDP traffic.
V-216991 Low The Cisco BGP router must be configured to enable the Generalized TTL Security Mechanism (GTSM).
V-216556 Low The Cisco router must be configured to have all inactive interfaces disabled.