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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).

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-217056JUNI-RT-000510SV-217056r604135_ruleCCI-001368medium
Description
Advertisement of routes by an autonomous system for networks that do not belong to any of its customers pulls traffic away from the authorized network. This causes a denial of service (DoS) on the network that allocated the block of addresses and may cause a DoS on the network that is inadvertently advertising it as the originator. It is also possible that a misconfigured or compromised router within the GIG IP core could redistribute IGP routes into BGP, thereby leaking internal routes.
STIGDate
Juniper Router RTR Security Technical Implementation Guide2024-12-05

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (17) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AST-04Network Diagrams & Data Flow Diagrams (DFDs)
1.00
AST-04.2Control Applicability Boundary Graphical Representation
1.00
CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
DCH-19Geographic Location of Data
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
IAC-21Least Privilege
1.00

+7 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (42) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(7)Role-based Access Control
1.00
AC-4Information Flow Enforcement
1.00
AC-6(10)Prohibit Non-privileged Users from Executing Privileged Functions
1.00
AC-6(9)Log Use of Privileged Functions
1.00

+32 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.3
1.00
CCI1 mapping
CCI-001368
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
ID.AM-03
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

18 NICE work roles and 10 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-217056r604135_chk)

This requirement is not applicable for the DODIN Backbone.” Review the router configuration to verify that there is a filter defined to only advertise routes for prefixes that belong to any customers or the local AS. Verify that a policy has been configured to filter prefixes for BGP advertisement as shown in the example below. } policy-options { … … … policy-statement BGP_ADVERTISE_POLICY { term INCLUDE_LOCAL { from { prefix-list OUR_PREFIXES; } then accept; } term INCLUDE_CUST1 { from { prefix-list CUST1_PREFIXES; } then accept; } term INCLUDE_CUST2 { from { prefix-list CUST2_PREFIXES; } then accept; } term REJECT_OTHER { then reject; } } Verify that the export statement as shown below references the advertise policy. protocols { bgp { group AS4 { type external; import FILTER_ROUTES; export BGP_ADVERTISE_POLICY; peer-as 4; neighbor x.x.x.x; } group CUST1 { type external; import FILTER_CUST1_ROUTES; export BGP_ADVERTISE_POLICY; peer-as 55; neighbor x.x.x.x; neighbor x.x.x.x; } group CUST2 { type external; import FILTER_CUST2_ROUTES; export BGP_ADVERTISE_POLICY; peer-as 44; neighbor x.x.x.x; neighbor x.x.x.x; } } … … … } Note: The prefix lists should have already been configured per the previous requirements. If the router is not configured to reject outbound route advertisements that do not belong to any customers or the local AS, this is a finding.

Fix Text (F-18283r297037_fix)

Configure the router to filter outbound route advertisements for prefixes that are not allocated to or belong to any customer or the local autonomous system. Configure a policy-statement to filter BGP route advertisements that will only include the local and customer prefixes. [edit policy-options] set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_LOCAL from prefix-list OUR_PREFIXES set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_LOCAL then accept set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_CUST1 from prefix-list CUST1_PREFIXES set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_CUST1 then accept set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_CUST2 from prefix-list CUST2_PREFIXES set policy-statement BGP_ADVERTISE_POLICY term INCLUDE_CUST2 then accept set policy-statement BGP_ADVERTISE_POLICY term REJECT_OTHER then reject Note: The prefix lists should have already been configured per the previous requirements. Configure an export statement referencing the advertise policy on all external BGP peer groups as shown in the example below. [edit protocols bgp group GROUP_AS4] set export BGP_ADVERTISE_POLICY [edit protocols bgp group CUST1] set export BGP_ADVERTISE_POLICY [edit protocols bgp group CUST2] set export BGP_ADVERTISE_POLICY