The Juniper router must be configured to have all inactive interfaces disabled.

From Juniper Router RTR Security Technical Implementation Guide

Associated with: CCI-001414

JUNI-RT-000060_rule The Juniper router must be configured to have all inactive interfaces 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.If an interface is no longer used, the configuration must be deleted and the interface disabled. For sub-interfaces, delete sub-interfaces that are on inactive interfaces and delete sub-interfaces that are themselves inactive. If the sub-interface is no longer necessary for authorized communications, it must be deleted.

Check content

Review the router configuration and verify that inactive interfaces have been disabled as shown below. interfaces { ge-1/1/0 { disable; unit 0 { } } If an interface is not being used but is configured or enabled, this is a finding.

Fix text

Disable all inactive interfaces as shown below. [edit interfaces] set ge-1/1/0 disable

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