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Router Security Requirements Guide


Overview

Date Finding Count (94)
2018-01-26 CAT I (High): 10 CAT II (Med): 57 CAT III (Low): 27
STIG Description
The Router Security Requirements Guide (SRG) is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the NIST 800-53 and related documents. Comments or proposed revisions to this document should be sent via e-mail to the following address: disa.letterkenny.FSO.mbx.stig-customer-support-mailbox@mail.mil.

Available Profiles



Findings (MAC III - Administrative Sensitive)

Finding ID Severity Title
V-78237 High The perimeter router must be configured to deny network traffic by default and allow network traffic by exception.
V-78241 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-55761 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-78313 High The PE router must be configured to block any traffic that is destined to IP core infrastructure.
V-78303 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-78301 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-55733 High The perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
V-78295 High The PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance with the appropriate Route Target (RT).
V-78293 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-78215 High The router must be configured to restrict traffic destined to itself.
V-78337 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-78335 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-78333 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-78239 Medium The perimeter router must be configured to block inbound packets with source Bogon IP address prefixes.
V-78233 Medium The router must be configured to produce audit records containing information to establish the source of the events.
V-78339 Medium The Multicast Source Discovery Protocol (MSDP) router must be configured to only accept MSDP packets from known MSDP peers.
V-78231 Medium The router must be configured to produce audit records containing information to establish where the events occurred.
V-78325 Medium The 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-78323 Medium The PE router must be configured to enforce a Quality-of-Service (QoS) policy so that all customer traffic receives forwarding treatment as specified in the service level agreement (SLA).
V-78243 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-78247 Medium The perimeter router must be configured to filter egress traffic at the internal interface on an inbound direction.
V-78329 Medium The multicast Designated Router (DR) must be configured to rate limit the number of Protocol Independent Multicast (PIM) Register messages it will allow for each source-group (S, G) entry.
V-78245 Medium The perimeter router must be configured to filter ingress traffic at the external interface on an inbound direction.
V-55765 Medium The router must be configured to use encryption for routing protocol authentication.
V-55767 Medium The router must be configured to authenticate all routing protocol messages using NIST-validated FIPS 140-2 message authentication code algorithm.
V-78311 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-78315 Medium The PE router must be configured with Unicast Reverse Path Forwarding (RPF) loose mode on all CE-facing interfaces.
V-78317 Medium The PE router must be configured to ignore or block all packets with any IP options.
V-78251 Medium The perimeter router must be configured to have Proxy ARP disabled on all external interfaces.
V-78253 Medium The perimeter router must be configured to block all outbound management traffic.
V-78255 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-78257 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-55773 Medium The perimeter router must be configured to block all packets with any IP options.
V-55779 Medium The router must be configured to stop forwarding traffic upon the failure of the following actions: system initialization, shutdown, or system abort.
V-78265 Medium The BGP router must be configured to use a unique key for each autonomous system (AS) that it peers with.
V-78267 Medium The BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
V-78263 Medium The router providing connectivity to the NOC must be configured to forward all in-band management traffic via an IPsec tunnel.
V-78269 Medium The BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).
V-78307 Medium The PE router providing Virtual Private LAN Services (VPLS) must be configured to have traffic storm control thresholds on CE-facing interfaces.
V-55789 Medium The router must be configured to fail securely in the event of an operational failure.
V-55785 Medium The perimeter router must be configured to only allow incoming communications from authorized sources to be routed to authorized destinations.
V-55781 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-55721 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-78273 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-55723 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-78271 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-55727 Medium The multicast router must be configured to bind a Protocol Independent Multicast (PIM) neighbor filter to interfaces that have PIM enabled.
V-78275 Medium The BGP router must be configured to reject outbound route advertisements for any prefixes belonging to the IP core.
V-78279 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-55739 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-78209 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-78357 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-78351 Medium The router must be configured to only permit management traffic that ingresses and egresses the OOBM interface.
V-78299 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-55741 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-78297 Medium The PE router must be configured to have each VRF with the appropriate Route Distinguisher (RD).
V-78291 Medium The MPLS edge routers must be configured to have TTL Propagation disabled.
V-78217 Medium The router must be configured to drop all fragmented Internet Control Message Protocol (ICMP) packets destined to itself.
V-78211 Medium The router must not be configured to have any feature enabled that calls home to the vendor.
V-78213 Medium The router must not be configured to have any zero-touch deployment feature enabled when connected to an operational network.
V-78219 Medium The router must be configured to have Gratuitous ARP disabled on all external interfaces.
V-55759 Medium The router must be configured to use keys with a duration not exceeding 180 days for authenticating routing protocol messages.
V-78341 Medium The Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.
V-55757 Medium The router must be configured to implement message authentication for all control plane protocols.
V-78223 Medium The router must be configured to have Internet Control Message Protocol (ICMP) unreachable notifications disabled on all external interfaces.
V-78225 Medium The router must be configured to have Internet Control Message Protocol (ICMP) mask replies disabled on all external interfaces.
V-78227 Medium The router must be configured to have Internet Control Message Protocol (ICMP) redirects disabled on all external interfaces.
V-78331 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-78235 Low The router must be configured to disable the auxiliary port unless it is connected to a secured modem providing encryption and authentication.
V-78249 Low The perimeter router must be configured to have Link Layer Discovery Protocols (LLDPs) disabled on all external interfaces.
V-78327 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-78321 Low The PE or P router must be configured to implement a Quality-of-Service (QoS) policy in accordance with the QoS DoDIN Technical Profile.
V-55763 Low The router must be configured to have all non-essential capabilities disabled.
V-55769 Low The BGP router must be configured to enable the Generalized TTL Security Mechanism (GTSM).
V-78343 Low The Multicast Source Discovery Protocol (MSDP) router must be configured to filter received source-active multicast advertisements for any undesirable multicast groups (e.g., auto-RP, source-specific, link-local, black listed, etc.) and Bogon sources.
V-78319 Low The PE router must be configured to enforce a Quality-of-Service (QoS) policy in accordance with the QoS DoDIN Technical Profile.
V-78309 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-78305 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-78277 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-55729 Low The multicast edge router must be configured to establish boundaries for administratively scoped multicast traffic.
V-55749 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-78289 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-78287 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-78285 Low The MPLS router must be configured to use its loopback address as the source address for LDP peering sessions.
V-55735 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-78283 Low The BGP router must be configured to use its loopback address as the source address for iBGP peering sessions.
V-78281 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-55731 Low The router must be configured to have all inactive interfaces disabled.
V-55747 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 Bogon sources.
V-78347 Low The MSDP router must be configured to limit the amount of source-active messages it accepts on per-peer basis.
V-78345 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-78349 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-78221 Low The router must be configured to have IP directed broadcast disabled on all interfaces.
V-78229 Low The router must be configured to log all packets that have been dropped.