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IBM Tivoli and Cisco manual

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Install Solution logical block diagram Default network Login Administration Tivoli Configuration Manager Quarantine access Setup wizard welcome window Phased rollout approach Setting the policy version

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38Building a Network Access Control Solution with IBM Tivoli and Cisco Systems

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IBM Tivoli and Cisco manual

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Contents

Building a Network Access Control Solution Page International Technical Support Organization Second Edition January Contents Part 2. Customer environment Part 3. Appendixes Index Vii Copyright License AIX TrademarksIBM Preface Team that wrote this redbook Preface Become a published author IBM US Comments welcome Page Changed information January 2007, Second EditionNew information Page Part 1 Architecture and design Page Business context Security compliance and remediation concept Why we need this Http//banking.senate.gov/conf Does this concept help our mobile users Corporate security policy defined Business driver for corporate security compliance Achievable benefits for being compliant Conclusion Policy Development and Assurance Business context Page Architecting the solution Solution architectures, design, and methodologies Architecture overview Network Admission Control WANPage Security Compliance Manager Page Tivoli Configuration Manager Architectural terminologySecurity policy Compliance query Network Admission Control process Compliance User InterfaceRemediation handler TCM Cisco NAC and Ieee ACS Supplicant Using Cisco terminologyAuthenticator Posture agent Network identity provisioning Remediation process Phased rollout approach Definition of a Network Admission Control project Internet Design process Security compliance management business process Architecting the solution Security policy life cycle management Creation Implementation Enforcement Solution objectivesReview and update Default network Network design discussion Performance controls Quarantine accessTrusted network Implementation flow Scalability and high availabilityPage Conclusion Page Component structure Solution logical block diagram Logical components Posture validation server Network Admission ControlNetwork Admission Control Framework CSlog CSMon Policy enforcement device Admission control client Logging service Posture plug-in Clean Access Manager CAM Clean Access Server CASClean Access Agent CAA Network Admission Control Appliance Compliance server Clean Access Policy UpdatesCompliance Administration Compliance reporting Compliance client Posture collector Compliance client logical component Policy collector Default remediation handler RemediationRemediation server Posture cache Remediation handler component Physical componentsNetwork client Security Compliance Manager policy Cisco Trust AgentSecurity Compliance Manager client Network access infrastructure IBM Integrated Security Solution for Cisco Networks serversNetwork access device Cisco Secure Access Control Server Solution data and communication flow Tivoli Configuration Manager servers Policy creation and deployment flow Policy Component structure Posture collection process flow Posture validation and policy enforcement flow Page Remediation flow Secure communication Secure communication between components Component placement Security zonesNAC communication Security Compliance Manager communication Less Secure Uncontrolled zone Internet, external networks Network Controlled zone external network-facing DMZ Controlled zone intranetRestricted zone production network Restricted zone management network Branch egress enforcement Policy enforcement pointsBranch office compliance Campus internal enforcement Branch Office Compliance Campus Ingress Enforcement Soho Compliance PAT access protection Small Office Home Office compliance Extranet compliance Extranet Compliance Lab compliance LAB Compliance Data Center protection Data Center Protection Remote access protection Remote Access Protection Part 2 Customer environment Page Armando Banking Brothers Corporation Company profile Current IT architecture Network infrastructure IBM Integrated Security Solution for Cisco Networks lab Armando Banking Brothers Corporation NAC Appliance Armando Banking Brothers Corporation Page Application security infrastructure Middleware and application infrastructure DMZ Project layout and implementation phases Corporate business vision and objectives Project overview Action Reference Part I Security compliance server NAC L2 IP NAC L3 IP CCA OOB VG Part III Remediation server Conclusion Page Solution design Page Business requirements Security compliance requirements Network access control requirementsFunctional requirements Solution functional requirements Remediation requirements Caused by worms and other hostile software NAC solution conceptual functional requirements Remediation services Security compliance criteria Implementation architecture Attempt Component subsystems total solution Logical components Configuring the compliance server Establishing compliance criteria Establishing the policy collector parameters Tivoli Security Compliance Manager client components Solution design Setting the policy version Maxdataagesecs conceptual flow Setting the remediation handler URL attribute 11 Setting the remediation handler JAR classpath Enforcing compliance criteria Posture token ACS 13 Posture validation policies Page 14 Shared Radius Authorization Components Assigning the System Posture Token Performing remediation Physical components Remediation handler Html pages Compliance subsystem IBM Security Compliance Manager server IBM Tivoli Security Compliance Manager client Access Control ServerNetwork Admission Control subsystem Solution design NAC-enabled network device Layer 2 devicesLayer 3 devices LRE Cisco Trust Agent Software Package Web Server IBM Tivoli Configuration Manager serverRemediation subsystem Conclusion Page Compliance subsystem implementation 125 Tivoli Security Compliance Manager setup Installation of DB2 database server DB2 installation welcome window 127 DB2 version selection is presented similar to the one shown Setup wizard welcome window 129 License agreement window Installation type selection window 131 Installation action selection window Installation folder selection window 133 User information dialog Administration contact list dialog 135 10 DB2 Instance configuration window 137 11 DB2 Tools selection dialog 12 Administrator contact selection window 13 Installation options summary 139 Installation of Tivoli Security Compliance Manager server 14 Installation completion window 141 15 Language selection dialog Server Administration UtilitiesDatabase Configuration 18 Setup type selection window 143 19 E-mail server configuration dialog 20 Server Communication Configuration window 145 Server Security Configuration window is displayed, as shown 147 22 Database Location selection window 23 Database configuration information 149 24 Database creation choice window 25 Administrator User ID Configuration window 26 Installation options summary window 151 Configuration of the compliance policies 27 Installation result window 153 Posture collectorsPosture items and posture elements Policy collector Posture collector parametersOperational Workflow Installation of posture collectors 155 28 Tivoli Security Compliance Manager GUI login 30 Tivoli Security Compliance Manager Administration Console 157 32 Import file selection dialog 159 34 Collectors signature validation 35 Policy installation summary Customization of compliance policies 161 37 Policies view 38 Collectors configuration view 163 Passversion WarnversionsVersionwf Faillastscanover Defswf 165Warndefsolderthan Warnminlenunder FailminlenunderMinlenwf Warnmaxageover 167 41 Editing collector parameters PASSWINDOWS2000 PasswindowsntWarnwindowsnt 169 Hotfixwf WarnhotfixesFailhotfixes 171 KEY Nokeyrule ValueNovaluerule Pass 173 Rules Rule operators Checking for ZoneAlarm installation directory Rule resultsRule format 175 Checking for Windows XP firewall forced off Reqservice 177 Servicerunningwf ReqdisabledServicedisabledwf Reqrunning 179 46 Copying an existing compliance query 47 Destination policy selection dialog 181 48 Renaming compliance query 49 Compliance query description modification 183 50 Violation message modification 51 Disabling collector sharing 185 53 Saving changes made to the policy collectors Assigning the policy to the clients 54 Save policy collectors warning 187 55 Create group action selection 57 Add policy menu selection 189 Deploying the client softwareTcmcli utility policy Cisco Trust Agent Prerequisites 191 61 Certs directory with CTA Installation of Cisco Trust Agent on Windows 62 Cisco Trust Agent installation wizard 193 63 License agreement for Cisco Trust Agent Accept the defaults -64and click Next 65 Cisco Trust Agent installation type 195 Click Next Figure 197 67 Confirmation of the certificate import Click Finish to close the installation, as shown in Figure IBM Tivoli Security Compliance Manager client 199 Installation of the Security Compliance Manager client 70 Language selection 201 71 The welcome window 72 Client Installation Utility window 203 74 Directory selection window 75 Setup type window 205 Accept the defaults and click Next Pull 207 77 Client connection window 78 Server communication configuration window 79 Client Dhcp configuration window 209 Next 211 81 Successful completion window 82 Security Compliance Manager posture plug-in files Network enforcement subsystem implementation 213 Configuring NAC Framework components Configuring the Cisco Secure ACS for NAC L2 Installing Cisco Secure ACS 215 Configuring the administrative interface to Cisco Secure ACS Interface configuration advanced options 217 Allowing administrator access via Http optional Administration control Cisco Secure ACS certificate setup 219 Using an ACS self-signed certificate 221 Generating self-signed certificate Restart the Cisco Secure ACS Figure Importing IBM Security Compliance Manager attributes 223 Example 7-1 Security Compliance Manager attributes 225 Example 7-2 Import Security Compliance Manager attribute Configuring logging Click CSV Passed Authentications Figure Select CSV Failed Authentications Figure 227 11 Failed attempts logging Configuring a network device group in Cisco Secure ACS 229 13 Interface Configuration screen for the creation of NDGs 231 14 Network Device Group check box 15 Network Configuration 233 16 AAA clients 17 AAA client setup 235 18 AAA Clients Configuring Radius attributes 19 Global Ietf Radius attributes Configuring groups 237 21 Group Setup Configuring users 239 23 User-to-Group mappings 241 Global authentication setupClick Submit + Restart EAP-FAST configuration Condition EAP-TLS 243EAP-GTC Configuring posture validation 26 Posture Validation 245 27 Posture Validation Policies 28 CTA Posture Validation Policy 247 29 Posture Validation for CTA Click Add Condition Set Figure 249 31 Adding a condition set 32 Posture validation rule creation for CTA check 251 33 CTA rule defined 34 Quarantine condition applied as default action 253 35 Completed posture validation for CTA Click Apply and Restart, as shown in Figure 255 37 Repeating the process for Security Compliance Manager 38 IBM Tscm policy creation 257 39 IBM Tscm policy creation Click Add Rule to get to the screen shown in Figure 259 41 Tscm policy componentsPage 261 Click Done Figure 263 45 Completed posture validation rules Configuring Radius Authorization Components Click Radius Authorization Components 265 Ietf 47 IOS RAC attribute 267 48 Ietf drop-down menu 49 Healthy Sales RAC 269 Tunnel-Medium-Type 802 271 Configuring Network Access ProfilesClick Add Profile 51 Newly created NAP 52 Authentication configuration for RAC 273 From the screen shown in -53,click Add Rule 54 Partial configuration of posture validation 275 55 Selecting CTA and Tscm policies An example of the CTA Healthy pop-up is shown in Figure 277 58 CTA pop-up configuration 279 59 Completed posture validation for Naciisscn 60 Authorization rule creation 281 User group System posture token Shared RAC 62 Completed Authorization RAC configuration RAC Configuring the Cisco Secure ACS for NAC L2/L3 IP External User DatabaseUnknown user policy Clientless user Downloadable Access Control Lists 63 Downloadable ACL creation 285 64 Naming of ACL Enter the name of the ACL and the ACL definition Figure Select Radius Authorization Components 287 Vendor Attribute Value Click Add Rule 289 68 L2IP Healthy Authorization rule 291 Deployment of the network infrastructureClick Apply and Restart Configuring Cisco 3750 switch for NAC L2 293 Page Configuring Cisco 3750 switch for NAC L2 IP 295Page Has been applied to the switchport 297 Configuring Cisco IOS Router for NAC L3 IP No URL Redirect 299 Page 301 Example 7-3 Output of show eou and show eou all command Verifying Network Admission Control Configuring NAC Appliance components 303 Installing CCA Agent 71 Installation wizard 72 Default install directory 305 Configuring a CCA OOB VG server CCA version Required ports 75 CAM login 307 Clean Access Summary window will be displayed Figure 309 77 Device Management Click Add Clean Access Server 78 Adding a new CAS 311 79 Successful CAS addition 80 CAS Status screen 313 81 Network IP screen Select Advanced → Vlan Mapping 82 Managed subnets 315 Configure default loginClick Administration → User Pages → Login Configuring a Switch Group Select Switch Management → Profiles → Group → New 85 Switch Group creation 317 Verify your new switch group Figure Configuring a switch profile 319 Configuring Port Profile 88 Switch profile Select Switch Management → Profiles → Port → New Figure 321 90 Managed profile creation 323 Configuring Snmp receiverClick Switch Management → Profiles → Snmp Receiver Adding a managed switch Select Switch Management → Devices → Switches → New 93 Manually adding a switch to be managed 325 As seen in -94,click the Ports icon 327 Defining user rolesClick User Management → User Roles → New Roles Click Save Role when completed 329 Creating traffic policiesClick User Management → User Roles → Traffic Control → IP 98 Rules for trusted to untrusted 331 ActionAllow StateEnabled CategoryIP ProtocolTCPClick Add Policy Creating local users Click User Management → Local Users → New Local User Click Create User 333 Configure Clean Access Agent 102 List of local users Click Add Check 335 104 CCA version compliance check 337 105 Rules check list check Rule Name Rule DescriptionOperating System Rule Expression 339 107 CCA Compliance rule definition Newly defined rules will be displayed Figure 341 Click Requirements → New Requirements FigureClick Add Requirement 110 CCA Agent update Click Requirement Rules 343 Click Role-Requirements 112 CCA Compliance Requirement rule 345 113 Role requirements Discovered clients 114 Viewing online users Logging on as a client 347 Click Continue 117 Web page pop-up informing user about non-compliance 118 Temporary access notification 349 120 Security Compliance Manager Compliance Report window 351 Configuring Cisco 3750 switch for NAC Appliance 123 Successful login Example of interface configuration for CAM interface 353 Example of Snmp configuration Remediation subsystem implementation 355Page Automated remediation enablement 357 Remediation server software setup Prerequisites 359 Tivoli Configuration ManagerTivoli Configuration Manager Web Gateway setup Installation of Web infrastructure Preparing for the installationInstallation of the DB2 database 361 WebSphere Application Server launchpad WebSphere Installation Wizard window 363 Software License Agreement window Installation type selection 365 Component selection dialog Destination folder selection window 367 Node name selection window Run as a service selection window Installation options summary 369 10 Online registration dialog Patching WebSphere Application Server installation 371 12 WebSphere product location 13 Installation option selection 373 Creating the necessary user account 14 Fix packs directory location Installation of Tivoli Configuration Manager Web Gateway 375 Welcome window is presented -16. Click Next 377 17 License agreement window 18 Component selection 19 Installation directory selection window 379 20 Database configuration window 21 Web infrastructure configuration window 381 22 Endpoint configuration window 23 Secure access configuration 383 24 Summary of installation options Configuration of the remediation server 385 Installation of Software Package Web Server 26 WebSphere administrative console login 387 27 Install new application 28 Preparing for the application installation 389 29 Installation option summary dialog 30 Installation status window 391 31 Saving the configuration changes Configuration of the Software Package Web Server 393 Installation of the Software Package Utilities 395 Cd %BINDIR% Cd tcmremed\cfg Sputilinitialsetup.bat Creating remediation instructions for the users 397 Locating Html 399 33 Directory structure for Html pages Posture item Html DefaultlangBase Html Html pages example 401 Variables and variable tags Posture element Html 403 Wfattribute tagField Tag Remattribute tag Fail 405 \PROGRA~1\IBM\SC Debug attributes Logging available attributes Logging posture items 407 Logging the Html search path Creating Html pages for Abbc policy 409 Example 8-4shows the Html source code for this Example 8-5 Content of style definition file 411Page Example 8-6 Html source for password length policy details 413 Wfattributecurrentvalues.brbWARNING fieldmsg/bbr Example 8-7shows the Html source for 415Page Building the remediation workflows 417 TCRNavScan workflow Example 8-8 Content of NavScanMessageen.wsf 419 Example 8-9 Content of Sample.properties file for TCRNavScan 421 38 Remediation handler interface with the warning TCRNavVirusDefUpdate 423Page TCRNavSoftwareInstalled 425 TCRMSPatchesInstallWinXP 427 HotfixId=KB896423 TmfWebUIEndpoint=tcmweb TCRMSServicePackInstallWinXpSp2 429Page 431 AddRegistryValueBeforeExecData.arrayLength=2 TCRZLSoftwareInstalled Noreboot 433 TCRZLSoftwareRunning TCRMessengerDisabled 435 Modification of the remediation packages 437 Page Part 3 Appendixes 439Page Appendix A. Hints and tips 441 Deployment overview 443 Appendix A. Hints and tips Top-level sequence of events Figure A-2 Isscn top-level sequence diagram Security Compliance Manager and NAC compliance subsystem Cisco Trust Agent Figure A-4 Cisco NAC sequence diagram Cisco NAC sequence of events Fault isolation Appendix A. Hints and tips Security Compliance Manager server and client Tivoli Security Compliance Manager Server Summary of default port usage Tools and tricksCommunication port usage Cisco NAC Cisco IOS Software switch Cisco IOS Software router Tools and tricks for the client Cisco Secure ACS server 40500 NAC Appliance details Cisco NAC Appliance components In-band versus out-of-band NAC Appliance integration Integration design Integration components NAC Appliance Agent TSCMAgent.bat NACApplianceCompliance.entry Scheduler Kickrich.html Installing and configuring prototype integration components System path Scheduler.bat Considerations for designing a production solution NAC Appliance Manager State mapping and scenarios Page Appendix A. Hints and tips Page 43 Sequence of Events for Scenarios #5 and #6 Conclusion Appendix B. Network Admission Control 471 Executive summary Benefit of NAC Dramatically improve network security 473 NAC implementation options NAC Appliance 475 NAC Framework solution Investment protection Planning, designing, and deploying an effective NAC solution 477 NAC Appliance components Next stepsNAC technology NAC Framework components 479Page Locating the Web material 481 Using the Web material How to use the Web material 483 IBM RedbooksOther publications How to get IBM Redbooks Online resources IBM Support and downloads IBM Global Services Help from IBMPage Numerics 487 SCM client communication Glba Html NAC NAD Creation Deployment PPP Sarbanes-Oxley Act Vlan UDPURL Page Page Page Building a Network Access Control Solution

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