Enterasys Networks 9034385 Features and Value, Extensive Security Posture Compliance Verification

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Model 3: End-System Authorization with Assessment

Features and Value

In addition to the features and values found in Model 1 and Model 2, the following are key pieces of functionality and value propositions supported by Model 3, End‐System Authorization with Assessment:

Extensive Security Posture Compliance Verification

The following describes a few examples of tests that can be executed for connecting end‐ systems and the relevance of these tests from a compliance and security standpoint:

•Antivirus software configuration

The NAC solution can determine if an end‐system has antivirus software installed, if it is properly configured (real‐time protection is enabled), if it is up‐to‐date with the most recent virus definition file, and if it is enabled. Antivirus software has the ability to detect infections as they happen, and to prevent further propagation of the virus to other end‐systems. It is important to verify that end‐systems are protected with antivirus software when they connect to the network, in case the end‐system is subsequently infected with a worm or virus after connectivity is established.

•Operating system patch level

The NAC solution can determine if the end‐system is up‐to‐date with the latest operating system patches. This ensures that any vulnerabilities present in services running on unpatched laptops are appropriately remediated, so that attacks that target those vulnerabilities are not successful, if they reach the device on the network.

•Malware infection

The NAC solution can determine if the end‐system is infected with malware (worms, viruses, spyware, and adware) by identifying backdoor ports on which the end‐system is listening, running processes and services, and/or registry key settings. By identifying infected end‐ systems prior to network connection, the NAC solution protects other end‐systems on the network from possible infection and prevents the unnecessary consumption of network bandwidth.

•Host firewall configuration

The NAC solution can determine if the end‐system has a host firewall enabled. By having a firewall enabled, the end‐system can protect itself against attacks targeting vulnerable services and applications on the device.

•Peer‐to‐Peer (P2P) file sharing software configuration

The NAC solution can determine if the end‐system is installed with or is running a P2P file sharing application. Since P2P file sharing applications facilitate the illegal file transfer of copyrighted data on the network and can be used for recreational purposes, it is important that the NAC solution validates that this type of application is not in use on end‐systems prior to network connection. This avoids legal issues involved with the transfer of copyrighted data or loss of productivity due to inappropriate online activity.

2-10 NAC Deployment Models

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Contents Enterasys Page Page Page Contents Design Planning Design ProceduresUse Scenarios Figures TablesPage Intended Audience Related DocumentsGetting Help Support@enterasys.comNAC Solution Overview AuthenticationKey Functionality DetectionAuthorization Deployment ModelsAssessment RemediationModel 1 End-system Detection and Tracking Model 2 End-System AuthorizationModel 3 End-System Authorization with Assessment NAC Solution Components NAC ApplianceNAC Gateway Appliance NAC Controller ApplianceNAC Controller is available in two models Appliance Comparison NAC Gateway NAC ControllerDisadvantage Advantage NetSight Management NetSight NAC ManagerAssessment Server SummaryRadius Server Summary Summary Overview Out-of-Band NAC Model 1 End-System Detection and TrackingImplementation End-System and User Tracking Features and ValueInline NAC Layer Model 2 End-System Authorization Required and Optional ComponentsInline NAC Location-Based Authorization Device-Based AuthorizationUser-Based Authorization MAC Registration Component Requirements for Authorization Model 3 End-System Authorization with Assessment Inline NAC Extensive Security Posture Compliance Verification Diverse Security Posture Compliance Verification Component Requirements for Authorization with Assessment Implementation Self-Service Remediation Required and Optional Components Enterasys NAC Deployment Models Value Scenario 1 Intelligent Wired Access Edge Use ScenariosPolicy-Enabled Edge NAC FunctionsRFC 3580 Capable Edge VLAN=ProductionScenario 1 Implementation Scenario 2 Intelligent Wireless Access Edge Thin Wireless EdgeRemediation Web User Laptop Thick Wireless Edge Scenario 2 Implementation Scenario 3 Non-intelligent Access Edge Wired and Wireless Layer 2 Wired LAN Scenario 4 VPN Remote Access Scenario 3 ImplementationVPN Remote Access Enterasys Scenario 4 ImplementationUse Scenario Summaries Summary and Appliance Requirements VPN remote access Design Planning Identify the NAC Deployment ModelSurvey the Network Identify the Intelligent Edge of the NetworkNetwork with Intelligent Edge Evaluate Policy/VLAN and Authentication Configuration Case #1 No authentication method is deployed on the networkCase #2 Authentication methods are deployed on the network Overview of Supported Authentication MethodsSupport for Multiple End-System Connection Support of Multiple Authentication MethodsEnd-System Capabilities Authentication Support on Enterasys Devices Authentication ConsiderationsIdentify the Strategic Point for End-System Authorization Wired LAN Wireless LANThick Wireless Deployments Identify Network Connection MethodsSite-to-Site VPN Remote Access WANThin Wireless Deployments Remote Access VPN Identify Inline or Out-of-band NAC DeploymentSummary Procedures for Out-of-Band and Inline NAC Identify Required NetSight ApplicationsDefine Network Security Domains NAC Configurations Security DomainNAC Configuration Authorization NAC Configuration for a Security Domain Procedures for Out-of-Band and Inline NAC To the network Procedures for Out-of-Band and Inline NAC Procedures for Out-of-Band and Inline NAC Security Domain Configuration Guidelines for Assessment Identify Required MAC and User Overrides MAC OverridesMAC and User Override Configuration Procedures for Out-of-Band and Inline NAC Procedures for Out-of-Band and Inline NAC User Overrides Assessment Design Procedures Determine the Number of Assessment ServersIdentify Assessment Server Configuration Determine Assessment Server LocationOut-of-Band NAC Design Procedures Identify Network Authentication ConfigurationDetermine the Number of NAC Gateways NAC Gateway Redundancy Determine NAC Gateway Location Identify Backend Radius Server Interaction Determine End-System Mobility RestrictionsDefine NAC Access Policies Vlan ConfigurationPolicy Role Configuration Failsafe Policy and Accept Policy Configuration Assessment Policy and Quarantine Policy ConfigurationPolicy Role Configuration in NetSight Policy Manager Assessment PolicyService for the Assessing Role Quarantine PolicyUnregistered Policy Inline NAC Design ProceduresDetermine NAC Controller Location Inline NAC Design Procedures Determine the Number of NAC Controllers Layer 2 NAC Controller Redundancy Define Policy Configuration NAC Deployment With NetSight ASM Additional ConsiderationsNAC Deployment With an Intrusion Detection System IDS Additional Considerations Design Procedures
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