The Arista Multilayer Switch must be configured so inactive router interfaces are disabled.

From Arista MLS DCS-7000 Series RTR Security Technical Implementation Guide

Associated with: CCI-001414

SV-75353r1_rule The Arista Multilayer Switch must be configured so inactive router interfaces are disabled.

Vulnerability discussion

An inactive interface is rarely monitored or controlled and may expose a network to an undetected attack on that interface. Unauthorized personnel with access to the communication facility could gain access to a router by connecting to a configured interface that is not in use.

Check content

Verify inactive interfaces on the router are disabled by executing a "show interface status" command and confirming the line "disabled" is present on any interface where the interface is inactive. If there are any inactive interfaces enabled on the router, this is a finding.

Fix text

Remove subinterfaces and disable any inactive ports on the router via the "shutdown" command on the interface configuration mode.

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