Juniper NETWORK AND SECURITY MANAGER 2010.4 - CONFIGURING INTRUSION DETECTION PREVENTION DEVICES GUIDE REV... User manual

Network and Security
Manager
Configuring Intrusion Detection and Prevention
Devices Guide
Release
2010.4
Published: 2010-11-17
Revision 01
Copyright © 2010, Juniper Networks, Inc.

Juniper Networks, Inc.
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www.juniper.net
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Network and Security Manager Configuring Intrusion Detection and Prevention Devices Guide
Release 2010.4
Copyright © 2010, Juniper Networks, Inc.
All rights reserved. Printed in USA.
Revision History
18 November 2010—01
The information in this document is current as of the date listed in the revision history.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. The Junos OS has no known time-related limitations through
the year 2038. However, the NTP application is known to have some difficulty in the year 2036.
Copyright © 2010, Juniper Networks, Inc.ii

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Copyright © 2010, Juniper Networks, Inc.iv

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vCopyright © 2010, Juniper Networks, Inc.

Copyright © 2010, Juniper Networks, Inc.vi

Table of Contents
AboutThisGuide..................................................xi
Objectives .........................................................xi
Audience ..........................................................xi
Conventions........................................................xi
ListofTechnicalPublications.........................................xiii
RequestingTechnicalSupport........................................xiv
Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
OpeningaCasewithJTAC.........................................xv
Part 1 Getting Started
Chapter 1 Intrusion Detection and Prevention Device and NSM Installation
Overview ..........................................................3
Intrusion Detection and Prevention Device Installation Overview . . . . . . . . . . . . . . 3
NSMInstallationOverview.............................................3
Chapter 2 Understanding Intrusion Detection and Prevention Device Configuration
andIntegrationOverview............................................5
NSM and Intrusion Detection and Prevention Device Management Overview . . . . 5
Intrusion Detection and Prevention Services and Device Configurations Supported
inNSM.........................................................6
Adding Intrusion Detection and Prevention Devices in NSM Overview . . . . . . . . . . 8
Adding Intrusion Detection and Prevention Clusters in NSM Overview . . . . . . . . . . 8
Using Templates and Configuration Groups in NSM Overview . . . . . . . . . . . . . . . . 8
Part 2 Configuring Intrusion Detection and Prevention Devices
Chapter3 ConfiguringProfilerSettings........................................13
Configuring Profiler Options (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SpecifyingGeneralOptions........................................14
SpecifyingTrackedHosts.........................................16
SpecifyingContextTargets........................................17
SpecifyingAlertOptions..........................................18
Viewing Profiler Logs (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ApplicationProfiler..............................................20
ProtocolProfiler.................................................22
Network Profiler ................................................23
viiCopyright © 2010, Juniper Networks, Inc.

Violation Viewer ................................................25
Modifying Profiler Settings (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Configuring Profiler Database Preferences (NSM Procedure) . . . . . . . . . . . . . . . . 26
Displaying Profiler Database Information (NSM Procedure) . . . . . . . . . . . . . . . . . 28
Querying the Profiler Database (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . 28
Purging the Profiler Database (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter4 ConfiguringSecurityPolicies........................................31
Intrusion Detection and Prevention Devices and Security Policies Overview . . . . . 31
Configuring Predefined Security Policies (NSM Procedure) . . . . . . . . . . . . . . . . . . 33
Creating a New Security Policy (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . 34
Modifying IDP Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SpecifyingRuleMatchConditions..................................37
Specifying IDP Rulebase Attack Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SpecifyingRuleSessionAction....................................39
SpecifyingRuleIPAction..........................................41
Specifying Rule Notification Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
SpecifyingRuleVLANMatches....................................42
SpecifyingRuleTargets..........................................43
SpecifyingRuleSeverity..........................................43
SpecifyingRuleOptionalFields....................................44
SpecifyingRuleComments.......................................44
Configuring Exempt Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . 45
Configuring Backdoor Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . . . . . . . . 47
Configuring SYN Protector Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . . . 49
Configuring Traffic Anomalies Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . 52
Configuring Network Honeypot Rulebase Rules (NSM Procedure) . . . . . . . . . . . . 54
Configuring Application Rulebase Rules (NSM Procedure) . . . . . . . . . . . . . . . . . . 58
Chapter5 WorkingwithAttackObjects.......................................63
Attack Objects in Intrusion Detection and Prevention Security Policies
Overview ......................................................63
Loading J-Security-Center Updates (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . 64
Viewing Predefined Attack Objects (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . 65
Working with Attack Groups (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
CreatingDynamicGroups.........................................67
CreatingStaticGroups...........................................68
Creating Custom Attack Objects (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . 69
Configuring General Properties for Attack Objects . . . . . . . . . . . . . . . . . . . . . 69
CreatingaSignatureAttackObject..................................71
Verifying the Attack Object Database Version (NSM Procedure) . . . . . . . . . . . . . . 77
Updating the IDP Detector Engine (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . 78
Chapter 6 Configuring SNMP and Syslog Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Configuring an SNMP Agent (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Configuring Syslog Collection (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Copyright © 2010, Juniper Networks, Inc.viii
Configuring Intrusion Detection and Prevention Devices Guide

Chapter 7 Configuring Anti-Spoof Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Configuring Antispoof Settings in Intrusion Detection and Prevention Devices
(NSMProcedure)...............................................85
Example: Applying Antispoof to a Web Server and Database Server (NSM
Procedure) ....................................................86
Chapter 8 Configuring Intrusion Detection and Prevention Device Settings . . . . . . . . 89
Configuring Load-Time Parameters (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . 89
Configuring Run-Time Parameters (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . 91
Configuring Router Parameters (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . 96
Configuring Protocol Handling (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Chapter 9 Configuring Additional Intrusion Detection and Prevention Features . . . . 113
Configuring Additional Intrusion Detection and Prevention Features
Overview......................................................113
Enabling Intrusion Detection and Prevention Processing of Encrypted and
Encapsulated Traffic (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
EnablingSSLDecryption.........................................114
EnablingGREDecapsulation......................................114
EnablingGTPDecapsulation......................................115
Part 3 Managing Intrusion Detection and Prevention Devices
Chapter 10 Managing Security Policies in Intrusion Detection and Prevention
Devices..........................................................119
Assigning a Security Policy in an Intrusion Detection and Prevention Device (NSM
Procedure) ....................................................119
Validating a Security Policy (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Troubleshooting Security Policy Validation Errors (NSM Procedure) . . . . . . . . . . 120
Pushing Security Policy Updates to an IDP Device (NSM Procedure) . . . . . . . . . . 121
Troubleshooting Configuration Push Errors (NSM Procedure) . . . . . . . . . . . . . . . 123
DisablingRules(NSMProcedure).....................................124
Exporting Security Policies (NSM Procedure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Chapter 11 Managing Profiler Settings in Intrusion Detection and Prevention
Devices .........................................................125
ManagingProfilerSettings...........................................125
UpdatingProfilerSettings........................................125
StartingtheProfiler.............................................125
StoppingtheProfiler............................................125
ixCopyright © 2010, Juniper Networks, Inc.
Table of Contents

Part 4 Monitoring Intrusion Detection and Prevention Devices
Chapter 12 Working with NSM Logs and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
NSMLogsandReportsOverview......................................129
ViewingLogs......................................................129
IDPLogs......................................................130
UsingNSMLogInvestigator......................................130
UsingNSMAuditLogViewer.....................................130
ViewingDeviceStatus..............................................132
ViewingNSMPredefinedReports.....................................135
CreatingNSMCustomReports........................................137
ConfiguringLogSuppression.........................................139
Chapter 13 Working with Intrusion Detection and Prevention Reporter Reports . . . . . 141
Intrusion Detection and Prevention Reporter Overview . . . . . . . . . . . . . . . . . . . . . 141
Part 5 Index
Index ............................................................145
Copyright © 2010, Juniper Networks, Inc.x
Configuring Intrusion Detection and Prevention Devices Guide

About This Guide
•Objectives on page xi
•Audience on page xi
•Conventions on page xi
•List of Technical Publications on page xiii
•Requesting Technical Support on page xiv
Objectives
Network and Security Manager (NSM) is a software application that centralizes control
and management of your Juniper Networks devices. With NSM, Juniper Networks delivers
integrated, policy-based security and network management for all security devices.
Intrusion Detection and Prevention (IDP) series uses eight detection methods to detect
malicious network traffic. It is able to drop attacks to prevent damage to your network
and can operate inline as a forwarding gateway, directly in the path of traffic coming and
going on your network.
This guide provides the various steps to configure and manage IDP devices using NSM.
This guide also helps in understanding of how to configure basic and advanced NSM
functionality, including adding new devices, deploying new device configurations, updating
device firmware, viewing log information, and monitoring the status of IDP devices.
Audience
This guide is intended for the system administrators who are responsible for configuring
IDP devices.
Conventions
This section provides all the documentation conventions that are followed in this guide.
Table 1 on page xiidefines notice icons used in this guide.
xiCopyright © 2010, Juniper Networks, Inc.

Table 1: Notice Icons
DescriptionMeaningIcon
Indicates important features or instructions.Informational note
Indicates a situation that might result in loss of data or hardware damage.Caution
Alerts you to the risk of personal injury or death.Warning
Alerts you to the risk of personal injury from a laser.Laser warning
Table 2 on page xii defines text conventions used in this guide.
Table 2: Text Conventions
ExamplesDescriptionConvention
•Issue the clock source command.
•Specify the keyword exp-msg.
•Click User Objects
•Represents commands and keywords
in text.
•Represents keywords
•Represents UI elements
Bold typeface like this
user inputRepresents text that the user must type.Bold typeface like this
host1#
show ip ospf
Routing Process OSPF 2 with Router
ID 5.5.0.250
Router is an area Border Router
(ABR)
Represents information as displayed on
the terminal screen.
fixed-width font
Ctrl + dIndicates that you must press two or more
keys simultaneously.
Key names linked with a plus (+) sign
•The product supports two levels of
access, user and privileged.
•clusterID,ipAddress.
•Emphasizes words
•Identifies variables
Italics
Object Manager > User Objects > Local
Objects
Indicates navigation paths through the UI
by clicking menu options and links.
The angle bracket (>)
Table 3 on page xiii defines syntax conventions used in this guide.
Copyright © 2010, Juniper Networks, Inc.xii
Configuring Intrusion Detection and Prevention Devices Guide

Table 3: Syntax Conventions
ExamplesDescriptionConvention
terminal lengthRepresent keywordsWords in plain text
mask, accessListNameRepresent variablesWords in italics
diagnostic | lineRepresent a choice to select one keyword or
variable to the left or right of this symbol. The
keyword or variable can be optional or required.
Words separated by the pipe ( | )
symbol
[ internal | external ]Represent optional keywords or variables.Words enclosed in brackets ( [ ] )
[ level1 | level2 | 11 ]*Represent optional keywords or variables that
can be entered more than once.
Words enclosed in brackets followed
by and asterisk ( [ ]*)
{ permit | deny } { in | out } { clusterId
| ipAddress }
Represent required keywords or variables.Words enclosed in braces ( { } )
List of Technical Publications
This section provides the list of the documentations required for any additional
information.
Table 4: Network and Security Manager and IDP Device Publications
Details the steps to install the NSM management system on a single server or on separate
servers. It also includes information on how to install and run the NSM user interface. This
guide is intended for IT administrators responsible for the installation and/or upgrade to
NSM.
Network and Security Manager
Installation Guide
Describes how to use and configure key management features in the NSM. It provides
conceptual information, suggested workflows, and examples where applicable. This guide
is best used in conjunction with the NSM Online Help, which provides step-by-step
instructions for performing management tasks in the NSM UI.
This guide is intended for application administrators or those individuals responsible for
owning the server and security infrastructure and configuring the product for multi-user
systems. It is also intended for device configuration administrators, firewall and VPN
administrators, and network security operation center administrators.
Network and Security Manager
Administration Guide
Describes NSM features that relate to device configuration and management. It also explains
how to configure basic and advanced NSM functionality, including deploying new device
configurations, managing Security Policies and VPNs, and general device administration.
Network and Security Manager
Configuring Firewall/VPN Devices
Guide
Provides task-oriented procedures describing how to perform basic tasks in the NSM user
interface. It also includes a brief overview of the NSM system and a description of the GUI
elements.
Network and Security Manager
Online Help
Details the physical features of Juniper Networks Intrusion Detection and Prevention (IDP)
series. It also explains how to install, configure, update/reimage, and service the IDP system.
IDP Installation Guide
xiiiCopyright © 2010, Juniper Networks, Inc.
About This Guide

Table 4: Network and Security Manager and IDP Device Publications (continued)
Details about the Juniper Networks Intrusion Detection and Prevention (IDP) series that
uses multiple methods to detect and prevent network attacks. IDP is designed to reduce
false positives to ensure that only actual malicious traffic is detected and stopped.
IDP Concepts & Examples Guide
Details about the IDP Reporter that enables you to analyze your enterprise network
thoroughly so you can assess attacks, attackers, and resource utilization.
IDP Reporter User's Guide
Details about how to complete the IDP QuickStart and ACM Wizard which is available
through the IDP Appliance Configuration Manager (ACM) as context-sensitive online help.
IDP ACM Online Help
Details about IDP Detector Engine features and resolved issues in the recent releases. It
also helps you to decide to update the IDP Detector Engine version in your deployment.
IDP Detector Engine Release
Notes
Requesting Technical Support
Technical product support is available through the Juniper Networks Technical Assistance
Center (JTAC). If you are a customer with an active J-Care or JNASC support contract,
or are covered under warranty, and need post-sales technical support, you can access
our tools and resources online or open a case with JTAC.
•JTAC policies—For a complete understanding of our JTAC procedures and policies,
review the JTAC User Guide located at
http://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf .
•Product warranties—For product warranty information, visit
http://www.juniper.net/support/warranty/ .
•JTAC hours of operation—The JTAC centers have resources available 24 hours a day,
7 days a week, 365 days a year.
Self-Help Online Tools and Resources
For quick and easy problem resolution, Juniper Networks has designed an online
self-service portal called the Customer Support Center (CSC) that provides you with the
following features:
•Find CSC offerings: http://www.juniper.net/customers/support/
•Search for known bugs: http://www2.juniper.net/kb/
•Find product documentation: http://www.juniper.net/techpubs/
•Find solutions and answer questions using our Knowledge Base: http://kb.juniper.net/
•Download the latest versions of software and review release notes:
http://www.juniper.net/customers/csc/software/
•Search technical bulletins for relevant hardware and software notifications:
https://www.juniper.net/alerts/
Copyright © 2010, Juniper Networks, Inc.xiv
Configuring Intrusion Detection and Prevention Devices Guide

•Join and participate in the Juniper Networks Community Forum:
http://www.juniper.net/company/communities/
•Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/
To verify service entitlement by product serial number, use our Serial Number Entitlement
(SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/
Opening a Case with JTAC
You can open a case with JTAC on the Web or by telephone.
•Use the Case Management tool in the CSC at http://www.juniper.net/cm/ .
•Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).
For international or direct-dial options in countries without toll-free numbers, see
http://www.juniper.net/support/requesting-support.html .
xvCopyright © 2010, Juniper Networks, Inc.
About This Guide

Copyright © 2010, Juniper Networks, Inc.xvi
Configuring Intrusion Detection and Prevention Devices Guide

PART 1
Getting Started
•Intrusion Detection and Prevention Device and NSM Installation Overview on page 3
•Understanding Intrusion Detection and Prevention Device Configuration and Integration
Overview on page 5
1Copyright © 2010, Juniper Networks, Inc.

Copyright © 2010, Juniper Networks, Inc.2
Configuring Intrusion Detection and Prevention Devices Guide

CHAPTER 1
Intrusion Detection and Prevention Device
and NSM Installation Overview
•Intrusion Detection and Prevention Device Installation Overview on page 3
•NSM Installation Overview on page 3
Intrusion Detection and Prevention Device Installation Overview
The Intrusion Detection and Prevention (IDP) series consists of hardware and software
components. You can install the IDP device and start configuring your system using the
following steps:
1. Decide on the physical location of the device.
2. Install the device into your equipment rack.
3. Connect power cables and power on.
4. Perform some initial configuration steps.
5. Install the device license key.
See the installation documentation for your IDP model to install, configure, update, and
service a Juniper Networks IDP device.
Related
Documentation
NSM Installation Overview on page 3•
•NSM and Intrusion Detection and Prevention Device Management Overview on page 5
NSM Installation Overview
NSM is a software application that enables you to integrate and centralize management
of your Juniper Networks environment. You need to install two main software components
to run NSM: the NSM management system and the NSM user interface (UI).
See the Network Security Manager Installation Guide for the steps to install the NSM
management system on a single server or on separate servers. It also includes information
on how to install and run the NSM user interface. The Network Security Manager Installation
Guide is intended for IT administrators responsible for installing or upgrading to the NSM.
3Copyright © 2010, Juniper Networks, Inc.

Related
Documentation
•Intrusion Detection and Prevention Device Installation Overview on page 3
•NSM and Intrusion Detection and Prevention Device Management Overview on page 5
Copyright © 2010, Juniper Networks, Inc.4
Configuring Intrusion Detection and Prevention Devices Guide