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V-60895

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

Finding ID
AMLS-L3-000140
Rule ID
SV-75353r1_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-NET-000019-RTR-000007
CCI
CCI-001414
Target Key
(None)
Documentable
No
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.

Fix Text

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

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.