II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000018-RTR-000001
<GroupDescription></GroupDescription>Group -
The Juniper 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.
<VulnDiscussion>Information flow control regulates where information is allowed to travel within a network and between interconnected network...Rule Medium Severity -
SRG-NET-000018-RTR-000002
<GroupDescription></GroupDescription>Group -
The Juniper BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
<VulnDiscussion>Accepting route advertisements for Bogon prefixes can result in the local autonomous system (AS) becoming a transit for malic...Rule Medium Severity -
SRG-NET-000018-RTR-000003
<GroupDescription></GroupDescription>Group -
The Juniper BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).
<VulnDiscussion>Accepting route advertisements belonging to the local AS can result in traffic looping, being black holed, or at a minimum us...Rule Medium Severity -
SRG-NET-000018-RTR-000004
<GroupDescription></GroupDescription>Group -
The Juniper 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.
<VulnDiscussion>As a best practice, a service provider should only accept customer prefixes that have been assigned to that customer and any ...Rule Medium Severity -
SRG-NET-000018-RTR-000005
<GroupDescription></GroupDescription>Group -
The Juniper 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).
<VulnDiscussion>Advertisement of routes by an AS for networks that do not belong to any of its customers pulls traffic away from the authoriz...Rule Medium Severity -
SRG-NET-000018-RTR-000006
<GroupDescription></GroupDescription>Group -
The Juniper 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.
<VulnDiscussion>Verifying the path a route has traversed will ensure the IP core is not used as a transit network for unauthorized or possibl...Rule Low Severity -
SRG-NET-000018-RTR-000007
<GroupDescription></GroupDescription>Group -
The Juniper router configured for Multicast Source Discovery Protocol (MSDP) must filter received source-active multicast advertisements for any undesirable multicast groups and sources.
<VulnDiscussion>The interoperability of BGP extensions for interdomain multicast routing and MSDP enables seamless connectivity of multicast ...Rule Low Severity -
SRG-NET-000018-RTR-000008
<GroupDescription></GroupDescription>Group -
The Juniper router configured for Multicast Source Discovery Protocol (MSDP) must filter source-active multicast advertisements to external MSDP peers to avoid global visibility of local-only multicast sources and groups.
<VulnDiscussion>To avoid global visibility of local information, there are a number of source-group (S, G) states in a PIM-SM domain that mus...Rule Low Severity -
SRG-NET-000018-RTR-000009
<GroupDescription></GroupDescription>Group -
The Juniper router configured for MSDP must limit the amount of source-active messages it accepts on per-peer basis.
<VulnDiscussion>To reduce any risk of a denial-of-service (DoS) attack from a rogue or misconfigured MSDP router, the router must be configur...Rule Low Severity -
SRG-NET-000018-RTR-000010
<GroupDescription></GroupDescription>Group -
The Juniper router configured for BGP must reject route advertisements from CE routers with an originating AS in the AS_PATH attribute that does not belong to that customer.
<VulnDiscussion>Verifying the path a route has traversed will ensure that the local AS is not used as a transit network for unauthorized traf...Rule Low Severity
Node 2
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