The router must not have SHELL enabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-NET-000132-RTR-000057	SRG-NET-000132-RTR-000057	SRG-NET-000132-RTR-000057_rule		Medium

Description
A compromised network element introduces risk to the entire network infrastructure as well as data resources that are accessible via the network. The perimeter defense has no oversight or control of attacks by malicious users within the network. Preventing network breaches from within is dependent on implementing a comprehensive defense-in-depth strategy including securing each device connected to the network. This is accomplished by following and implementing all security guidance applicable for each node type. A fundamental step in securing each network element is to enable the capabilities required for operation.

Description

A compromised network element introduces risk to the entire network infrastructure as well as data resources that are accessible via the network. The perimeter defense has no oversight or control of attacks by malicious users within the network. Preventing network breaches from within is dependent on implementing a comprehensive defense-in-depth strategy including securing each device connected to the network. This is accomplished by following and implementing all security guidance applicable for each node type. A fundamental step in securing each network element is to enable the capabilities required for operation.

STIG	Date
Router Security Requirements Guide	2013-07-30

Details

Check Text ( C-SRG-NET-000132-RTR-000057_chk )
Review the router configuration to ensure that SHELL is disabled. If SHELL is not disabled, this is a finding.

Fix Text (F-SRG-NET-000132-RTR-000057_fix)
Disable the SHELL protocol.