STIGQter: STIG Summary: Arista MLS EOS 4.X Router Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 02 Apr 2025:

The Arista BGP router must be configured to use a unique key for each autonomous system (AS) that it peers with.

DISA Rule

SV-256027r945862_rule

Vulnerability Number

V-256027

Group Title

SRG-NET-000230-RTR-000002

Rule Version

ARST-RT-000470

Severity

CAT II

CCI(s)

• CCI-002205 - Uniquely identify and authenticate source by organization, system, application, service, and/or individual for information transfer.

Weight

10

Fix Recommendation

Configure all eBGP Arista routers with unique keys for each eBGP neighbor that it peers with.

To configure BGP authentication, in the BGP configuration mode interface, when adding neighbors, include the following statement:

router bgp NN
neighbor 100.1.0.0 password 0 [password-string]

Check Contents

Interview the ISSM and router administrator to determine if unique keys are being used.

Verify the BGP router AS is configured for a unique key. Run the command "sh run | section router bgp".

router bgp [NN]
neighbor [ip address] password [type] [password-string]

If unique keys are not being used, this is a finding.

Vulnerability Number

V-256027

Documentable

False

Rule Version

ARST-RT-000470

Severity Override Guidance

Interview the ISSM and router administrator to determine if unique keys are being used.

Verify the BGP router AS is configured for a unique key. Run the command "sh run | section router bgp".

router bgp [NN]
neighbor [ip address] password [type] [password-string]

If unique keys are not being used, this is a finding.

Check Content Reference

M

Target Key

5513