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Router Security Requirements Guide


Overview

Date Finding Count (105)
2021-03-16 CAT I (High): 10 CAT II (Med): 66 CAT III (Low): 29
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 I - Mission Critical Sensitive)

Finding ID Severity Title
V-207114 High The perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
V-207113 High The 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-216979 High The 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-207180 High The PE router providing Virtual Private LAN Services (VPLS) must be configured to have all attachment circuits defined to the virtual forwarding instance (VFI) with the globally unique VPN ID assigned for each customer VLAN.
V-207176 High The 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-207179 High The 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-207139 High The PE router must be configured to block any traffic that is destined to IP core infrastructure.
V-207132 High The perimeter router must be configured to deny network traffic by default and allow network traffic by exception.
V-207133 High The router must be configured to restrict traffic destined to itself.
V-207177 High The PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance with the appropriate Route Target (RT).
V-220148 Medium The perimeter router must be configured drop IPv6 packets with a Routing Header type 0, 1, or 3255.
V-220149 Medium The perimeter router must be configured to drop IPv6 packets containing a Hop-by-Hop header with invalid option type values.
V-207116 Medium The out-of-band management (OOBM) gateway router must be configured to have separate IGP instances for the managed network and management network.
V-207117 Medium The 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-220146 Medium The perimeter router must be configured to suppress Router Advertisements on all external IPv6-enabled interfaces.
V-207110 Medium The multicast router must be configured to bind a Protocol Independent Multicast (PIM) neighbor filter to interfaces that have PIM enabled.
V-216978 Medium The router must not be configured to have any feature enabled that calls home to the vendor.
V-207101 Medium The 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-207100 Medium The 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-207109 Medium The multicast router must be configured to disable Protocol Independent Multicast (PIM) on all interfaces that are not required to support multicast routing.
V-207108 Medium The perimeter router must be configured to enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy.
V-220151 Medium The perimeter router must be configured to drop IPv6 packets containing an extension header with the Endpoint Identification option.
V-220150 Medium The perimeter router must be configured to drop IPv6 packets containing a Destination Option header with invalid option type values.
V-220153 Medium The 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-220152 Medium The perimeter router must be configured to drop IPv6 packets containing the NSAP address option within Destination Option header.
V-216506 Medium The router must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.
V-216984 Medium The router must be configured to use keys with a duration not exceeding 180 days for authenticating routing protocol messages.
V-216983 Medium The BGP router must be configured to use a unique key for each autonomous system (AS) that it peers with.
V-216982 Medium The router must be configured to implement message authentication for all control plane protocols.
V-216981 Medium The PE router must be configured to ignore or block all packets with any IP options.
V-216980 Medium The perimeter router must be configured to block all packets with any IP options.
V-207099 Medium The BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).
V-207175 Medium The MPLS router must be configured to have TTL Propagation disabled.
V-207098 Medium The BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
V-207170 Medium The Multicast Source Discovery Protocol (MSDP) router must be configured to only accept MSDP packets from known MSDP peers.
V-207171 Medium The router must be configured to fail securely in the event of an operational failure.
V-207178 Medium The PE router must be configured to have each VRF with the appropriate Route Distinguisher (RD).
V-207167 Medium The perimeter router must be configured to block all outbound management traffic.
V-207166 Medium The perimeter router must be configured to have Proxy ARP disabled on all external interfaces.
V-207164 Medium The perimeter router must be configured to block inbound packets with source Bogon IP address prefixes.
V-207163 Medium The perimeter router must be configured to only allow incoming communications from authorized sources to be routed to authorized destinations.
V-207162 Medium The multicast Designated Router (DR) must be configured to increase the shortest-path tree (SPT) threshold or set it to infinity to minimalize source-group (S, G) state within the multicast topology where Any Source Multicast (ASM) is deployed.
V-207161 Medium The 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-207160 Medium The multicast Rendezvous Point (RP) must be configured to rate limit the number of Protocol Independent Multicast (PIM) Register messages.
V-207169 Medium The 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-220147 Medium The perimeter router must be configured to drop IPv6 undetermined transport packets.
V-207097 Medium The 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-207153 Medium The router must be configured to have Internet Control Message Protocol (ICMP) unreachable notifications disabled on all external interfaces.
V-207150 Medium The router must be configured to protect against or limit the effects of denial-of-service (DoS) attacks by employing control plane protection.
V-207151 Medium The router must be configured to have Gratuitous ARP disabled on all external interfaces.
V-207156 Medium The BGP router must be configured to use the maximum prefixes feature to protect against route table flooding and prefix de-aggregation attacks.
V-207154 Medium The router must be configured to have Internet Control Message Protocol (ICMP) mask replies disabled on all external interfaces.
V-207155 Medium The router must be configured to have Internet Control Message Protocol (ICMP) redirects disabled on all external interfaces.
V-207149 Medium The router must not be configured to have any zero-touch deployment feature enabled when connected to an operational network.
V-207148 Medium The Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.
V-207145 Medium The router providing connectivity to the NOC must be configured to forward all in-band management traffic via an IPsec tunnel.
V-207144 Medium The router must be configured to only permit management traffic that ingresses and egresses the OOBM interface.
V-207147 Medium The 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-207146 Medium The router must be configured to stop forwarding traffic upon the failure of the following actions: system initialization, shutdown, or system abort.
V-207141 Medium The out-of-band management (OOBM) gateway must be configured to transport management traffic to the Network Operations Center (NOC) via dedicated circuit, MPLS/VPN service, or IPsec tunnel.
V-207140 Medium The PE router must be configured with Unicast Reverse Path Forwarding (uRPF) loose mode enabled on all CE-facing interfaces..
V-207143 Medium The 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 NOC.
V-207142 Medium The out-of-band management (OOBM) gateway router must be configured to forward only authorized management traffic to the Network Operations Center (NOC).
V-220145 Medium The router must not be configured to use IPv6 Site Local Unicast addresses.
V-207138 Medium The BGP router must be configured to reject outbound route advertisements for any prefixes belonging to the IP core.
V-207134 Medium The router must be configured to drop all fragmented Internet Control Message Protocol (ICMP) packets destined to itself.
V-207135 Medium The perimeter router must be configured to filter traffic destined to the enclave in accordance with the guidelines contained in DoD Instruction 8551.1.
V-207136 Medium The perimeter router must be configured to filter ingress traffic at the external interface on an inbound direction.
V-207137 Medium The perimeter router must be configured to filter egress traffic at the internal interface on an inbound direction.
V-207129 Medium The 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-207128 Medium The PE router providing Virtual Private LAN Services (VPLS) must be configured to have traffic storm control thresholds on CE-facing interfaces.
V-207121 Medium The router must be configured to produce audit records containing information to establish the source of the events.
V-207120 Medium The router must be configured to produce audit records containing information to establish where the events occurred.
V-207126 Medium The PE router must be configured to limit the number of MAC addresses it can learn for each Virtual Private LAN Services (VPLS) bridge domain.
V-207125 Medium The router must be configured to authenticate all routing protocol messages using NIST-validated FIPS 198-1 message authentication code algorithm.
V-207124 Medium The router must be configured to use encryption for routing protocol authentication.
V-207118 Low The 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-207119 Low The 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-207115 Low The 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-207111 Low The multicast edge router must be configured to establish boundaries for administratively scoped multicast traffic.
V-207181 Low The PE router must be configured to enforce the split-horizon rule for all pseudowires within a Virtual Private LAN Services (VPLS) bridge domain.
V-207182 Low The Multicast Source Discovery Protocol (MSDP) router must be configured to use its loopback address as the source address when originating MSDP traffic.
V-207103 Low The Multicast Source Discovery Protocol (MSDP) router must be configured to filter received source-active multicast advertisements for any undesirable multicast groups and sources.
V-207102 Low The 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-207105 Low The MSDP router must be configured to limit the amount of source-active messages it accepts on per-peer basis.
V-207104 Low The 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-207107 Low The router must be configured to disable the auxiliary port unless it is connected to a secured modem providing encryption and authentication.
V-207106 Low The 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-216985 Low The BGP router must be configured to enable the Generalized TTL Security Mechanism (GTSM).
V-207174 Low The 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-207172 Low The BGP router must be configured to use its loopback address as the source address for iBGP peering sessions.
V-207173 Low The MPLS router must be configured to use its loopback address as the source address for LDP peering sessions.
V-207165 Low The perimeter router must be configured to have Link Layer Discovery Protocols (LLDPs) disabled on all external interfaces.
V-207168 Low The 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-207112 Low The router must be configured to have all inactive interfaces disabled.
V-207158 Low The PE router must be configured to implement Internet Group Management Protocol (IGMP) or Multicast Listener Discovery (MLD) snooping for each Virtual Private LAN Services (VPLS) bridge domain.
V-207159 Low The 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-220144 Low The router must be configured to advertise a hop limit of at least 32 in Router Advertisement messages for IPv6 stateless auto-configuration deployments.
V-207152 Low The router must be configured to have IP directed broadcast disabled on all interfaces.
V-207157 Low The 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-207130 Low The PE router must be configured to enforce a Quality-of-Service (QoS) policy in accordance with the QoS DoDIN Technical Profile.
V-207131 Low The P router must be configured to enforce a Quality-of-Service (QoS) policy in accordance with the QoS GIG Technical Profile.
V-207123 Low The router must be configured to have all non-essential capabilities disabled.
V-207122 Low The router must be configured to log all packets that have been dropped.
V-207127 Low The MPLS router with RSVP-TE enabled must be configured with message pacing or refresh reduction to adjust maximum number of RSVP messages to an output queue based on the link speed and input queue size of adjacent core routers.