IDPS sensors must interconnect and configure individual intrusion detection tools into a system-wide intrusion detection system using common protocols.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-NET-000255-IDPS-NA	SRG-NET-000255-IDPS-NA	SRG-NET-000255-IDPS-NA_rule		Medium

Description
IDPS sensor must be deployed at strategic locations within the network. At a minimum, they should be deployed within the DMZ and behind the firewall. It is important to not only monitor traffic entering the enclave but also leaving. Placing an IDS behind the firewall will provide a clear analysis of what type of traffic and potential attacks are passing through the firewall. Monitoring outbound traffic enables the network operator to detect an attack towards another network with the local enclave as the base. This is a network architecture design requirement. Redesign the network architecture, so all ingress traffic will pass the sensor decrypted and is inspected by the firewall and Network IDS/IPS. This is a network architecture design requirement.

Description

IDPS sensor must be deployed at strategic locations within the network. At a minimum, they should be deployed within the DMZ and behind the firewall. It is important to not only monitor traffic entering the enclave but also leaving. Placing an IDS behind the firewall will provide a clear analysis of what type of traffic and potential attacks are passing through the firewall. Monitoring outbound traffic enables the network operator to detect an attack towards another network with the local enclave as the base. This is a network architecture design requirement. Redesign the network architecture, so all ingress traffic will pass the sensor decrypted and is inspected by the firewall and Network IDS/IPS. This is a network architecture design requirement.

STIG	Date
IDPS Security Requirements Guide (SRG)	2012-03-08

Details

Check Text ( C-43402_chk )
This requirement does not apply to IDPS.

Fix Text (F-43402_fix)
Not applicable for IDPS. No fix required.