STIGQter: STIG Summary: Router Security Requirements Guide Version: 4 Release: 2 Benchmark Date: 23 Apr 2021:

The BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).

DISA Rule

SV-207099r604135_rule

Vulnerability Number

V-207099

Group Title

SRG-NET-000018

Rule Version

SRG-NET-000018-RTR-000003

Severity

CAT II

CCI(s)

• CCI-001368 - The information system enforces approved authorizations for controlling the flow of information within the system based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

Ensure all eBGP routers are configured to reject inbound route advertisements for any prefixes belonging to the local AS.

Check Contents

Review the router configuration to verify that it will reject routes belonging to the local AS.

The prefix filter must be referenced inbound on the appropriate BGP neighbor statements.

If the router is not configured to reject inbound route advertisements belonging to the local AS, this is a finding.

Vulnerability Number

V-207099

Documentable

False

Rule Version

SRG-NET-000018-RTR-000003

Severity Override Guidance

Review the router configuration to verify that it will reject routes belonging to the local AS.

The prefix filter must be referenced inbound on the appropriate BGP neighbor statements.

If the router is not configured to reject inbound route advertisements belonging to the local AS, this is a finding.

Check Content Reference

M

Target Key

2917

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