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The Nokia Border Gateway Protocol (BGP) router must be configured to reject outbound route advertisements for any prefixes belonging to the IP core.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283870NOKI-RT-000520SV-283870r1203859_ruleCCI-001097medium
Description
Outbound route advertisements belonging to the core can result in traffic either looping or being black holed, or at a minimum, using a nonoptimized path.
STIGDate
Nokia Service Router OS 25.x Router Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (18) 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.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
CRY-01.1Alternate Physical Protection
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
CRY-05Encrypting Data At Rest
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
MON-01Continuous Monitoring
1.00
MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00

+8 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (10) 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.

CM-6Configuration Settings
1.00
SC-24Fail in Known State
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(29)Separate Subnets to Isolate Functions
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
SI-4System Monitoring
1.00
SI-4(11)Analyze Communications Traffic Anomalies
1.00
NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

3.13.1
1.00
3.13.2
1.00
3.13.5
1.00
CCI1 mapping
CCI-001097
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) 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-01
1.00
PR.DS-01
1.00
PR.DS-02
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

15 NICE work roles and 9 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-283870r1203859_chk)

Review the router configuration to verify a filter is defined to block route advertisements for prefixes that belong to the IP core. Verify a BGP "Export Policy" is applied to the neighbor using the command below: - show router bgp neighbor 10.50.10.2 detail | match "Export Policy" Export Policy : Export-Route-EBGP If the router is not configured to reject outbound route advertisements that belong to the IP core, this is a finding.

Fix Text (F-88340r1203858_fix)

Configure all eBGP routers to filter outbound route advertisements belonging to the IP core, as shown in the example below: Create a prefix-list: - configure router policy-options - config>router>policy-options# begin - config>router>policy-options# prefix-list "Core-IP-Prefix" - config>router>policy-options>prefix-list# prefix 192.168.100.10/32 - config>router>policy-options>prefix-list# exit Create a policy statement: - config>router>policy-options# policy-statement "Export-Route-EBGP" - config>router>policy-options>policy-statement# entry 10 - config>router>policy-options>policy-statement>entry# from prefix-list "Core-IP-Prefix" - config>router>policy-options>policy-statement>entry# action drop - config>router>policy-options>policy-statement>entry>action# exit - config>router>policy-options>policy-statement>entry# exit - config>router>policy-options>policy-statement# exit - config>router>policy-options# commit - config>router>policy-options# exit all Apply the export policy to the BGP: - configure router bgp group "eBGP-65560" export "Export-Route-EBGP"