IBM WebSphere V5.0 Security - CGISecurity

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also ask for a X.509 certificate file, although the response can be empty (justpress Enter). In this case, the certificate check will not be made. For details oncreating a digital certificate, refer to 10.9.1, “Generating a self-signed certificate”on page 264.8.4 Custom Trust Association InterceptorThe application server can be configured to use a third-party product to provideauthentication services, while continuing to perform authorisation. Theseproducts are often referred to as reverse proxy servers. To delegate the role ofauthentication to a reverse proxy, two conditions must be met.►►The reverse proxy must provide a Trust Association Interceptor, whichWebSphere will use to receive requests from the reverse proxy server.A trust association between WebSphere and the reverse proxy must beestablished.In order to provide an interceptor, thecom.ibm.websphere.security.TrustAssociationInterceptor interface, whichdefines three methods, must be implemented.►►►public boolean isTargetInterceptor(HttpServletRequest) throwscom.ibm.websphere.security.WebTrustAssociationExceptionDetermines whether the request originated with the proxy server associatedwith the interceptor. The implementation code must examine the incomingrequest object and determine if the proxy server forwarding the request is avalid proxy server for this interceptor.public void validateEstablishedTrust(HttpServletRequest) throwscom.ibm.websphere.security.WebTrustAssociationFailedExceptionDetermines whether or not the proxy server from which the request originatedis trusted. This method is called after the isTargetInterceptor method. Theimplementation code must authenticate the proxy server. The authenticationmechanism is proxy-server-specific.public String getAuthenticatedUsername(HttpServletRequest) throwscom.ibm.websphere.security.WebTrustAssociationUserExceptionThe application server has accepted the proxy server's authentication of therequest and must now authorise the request. This method extracts therequest’s user name from the HTTP header to allow for authorisation.190 IBM WebSphere V5.0 Security Handbook
Configuring the InterceptorIn order to make an inteceptor configurable, it is necessary for it to extendcom.ibm.websphere.security.WebSphereBaseTrustAssociationInterceptor.Three methods must be implemented.►►►public int init(java.util.Properties)Accepts a Properties object which contains the necessary interceptorconfiguration information.public int init(String)Accepts a file name for a file that contains the necessary interceptorconfiguration information. The format of the properties file is specified in theInfocenter.public void cleanup()Prepares the Interceptor for termination.Configuring WebSphere to use the InterceptorOnce the Interceptor has been installed and the trust association is configured,the application server may receive requests from the reverse proxy server. Theauthentication method used must be LTPA and authentication cannot bedelegated to a reverse proxy server if the user registry is LocalOS. Forinformation regarding the configuration of WebSphere for LTPA, refer to 10.6,“LTPA” on page 250 and for Trust Association Interceptors, refer to 12.4.1,“Single Sign-On with WebSEAL” on page 386.Note: The InfoCenter provides information regarding the setup of TivoliWebSEAL as a reverse proxy and the application server includes animplementation of the TAI for this product. Also, refer to 12.5.1, “TivoliWebSEAL” on page 412.Custom Trust Association InterceptorThis section will provide information on how to develop your own TrustAssociation Interceptor, how to configure a new Interceptor for WebSphere andfinally how to test it.Important: The custom Trust Association Interceptor here is only provided toshow how to develop a custom Interceptor. The Interceptor provided here isnot secure enough to use in any real environment.Developing the custom Trust Association InterceptorThe Trust Association Interceptor (TAI) for this book was developed using theWebSphere Studio.Chapter 8. Programmatic security 191
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Front coverIBM WebSphere V5.0Securi
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Take Note! Before using this inform
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4.2.1 Configuring Web module securi
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10.6 LTPA . . . . . . . . . . . . .
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Lotus Domino . . . . . . . . . . .
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TrademarksThe following terms are t
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The team that wrote this redbookThi
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Stephen Pipes is a WebSphere consul
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xviIBM WebSphere V5.0 Security Hand
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1.1 How to read this bookThere are
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4 IBM WebSphere V5.0 Security Handb
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2.1 SecurityAs new business practic
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2.2 Security fundamentals2.2.1 Auth
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For example, in a distributed objec
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►►►Users are mapped directly
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If Bob wants to answer, he should u
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identifies the client before issuin
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2.3 Security in useSince security i
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20 IBM WebSphere V5.0 Security Hand
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3.1 J2EE applicationThe Java 2 Ente
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Principals and GroupsSecurity Roles
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3.4 Application deployment descript
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3.5 J2EE application security confi
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Figure 3-4 Application-level Securi
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Security role mapping in the Admini
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Figure 3-7 Searching for the manage
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4.1 Static componentsWebSphere Appl
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1. ldap.prop is an LDAP configurati
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Figure 4-2 Defining authentication
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A .htaccess file placed in one dire
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4.2 Web module securityIn a J2EE ap
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Figure 4-4 Login Method Configurati
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higher level of protection. User Da
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8. Next to HTTP Methods click Add.
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8. Add the GET and POST HTTP method
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4.4 Security role referenceDuring t
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7. Save and close the web.xml file.
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Form login configurationThe followi
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4.5.2 Custom loginThere are situati
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employeeType will be stored as a se
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3. From the Filter Type Selection w
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As a next step, you have to make su
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If the user in role 'A' accesses /h
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As a universal solution for the pro
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5.1 Securing EJBsEJBs, or Enterpris
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5.3 Assigning EJB method permission
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defined in the EJB module. For info
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These unprotected methods can have
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Figure 5-6 New Security Role Refere
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Important: Although this feature is
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4. The Role Name option menu will c
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5.5.2 Method level delegationIn add
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Figure 5-11 Method-level Run-as rol
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Figure 5-13 Selecting methods for t
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If one or more method-level delegat
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6.1 Java clientsA client is a gener
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Available functionsActiveXclientApp
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Upon receiving the message, the ser
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The sas.client.props fileThe CORBA
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The CSIv2 configuration properties
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server. For example, if the client
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Client01Java clientJServer01EJB ser
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2. Configure Server01 for outgoing
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Configuring Client02Client02 requir
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3. Enable SSL for the connection, i
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Configuring Client01Client01 requir
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WebSphere V4SAS onlyWebSphere V5SAS
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The ITSOBank application provided w
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►►►sas.jarecutils.jardirector
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7.1 Web Services securityWeb Servic
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Figure 7-2 Creating a new Web Servi
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Figure 7-4 Web Service Deployment S
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Figure 7-7 Web Service Java Bean Me
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12.As shown in Figure 7-10 on page
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Follow the steps below to use the g
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Using the ITSOBank Web Service clie
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Page 164 and 165: Example 7-4 Secured and non-secured
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Page 184 and 185: - Container-managed Authentication
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Page 188 and 189: J2EE Connector architecture establi
Page 190 and 191: As a next step, the following list
Page 192 and 193: CMP EJB 2.0Persistence ManagerDatas
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Page 196 and 197: 2. Configure each resource adapter
Page 198 and 199: 8.1 Programmatic securityJ2EE secur
Page 200 and 201: 8.2.2 Servlet security methodsThe S
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Page 204 and 205: Figure 8-3 Custom Registry properti
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Page 218 and 219: ►►►►►java.net.NetPermissi
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Page 234 and 235: 9.1 WebSphere security modelThe IBM
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Page 252 and 253: 10.1 Administration toolsWebSphere
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Roleconfiguratoroperatoradministrat
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Figure 10-4 Mapping a group to an A
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Mapping a group to a CosNaming role
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1. In the Admin Console, select Sec
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6. In the Configuration tab provide
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8. The changes will need to be save
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In a scenario presented in this cha
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2. Save the configuration for WebSp
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Figure 10-16 Application Login Conf
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Figure 10-18 J2C Authentication ent
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Figure 10-19 An SSL configuration w
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WebSphere supports the concept of t
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The file used by a Java client to r
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Figure 10-22 Saving the new key sto
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Figure 10-25 Provide details for th
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24.From the menu bar, select Key Da
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10.Enter a Key Label which will ide
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Figure 10-30 A personal certificate
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10.9.3 Using the Java keytoolAnothe
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SSL connection #1 SSL connection #2
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Figure 10-33 The IBM HTTP Server ik
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The IBM HTTP Server Administration
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15.Select Basic Settings -> Module
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In the case of a self-signed certif
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Note: If the Cipher Specification l
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Make sure that the certificate is i
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Figure 10-41 Certificate detailsThi
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Configuring WebSphere to use certif
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3. If you decide the use the IBM HT
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Example 10-5 trace.log...[10/14/02
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Configuring WebSphere to use exact
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[10/14/02 19:39:38:358 EDT] 7a37602
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publicly circulating root certifica
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Exchanging public certificatesThe f
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Modifying the Web Container to supp
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The new certificate should appear u
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3. Client Certificate Authenticatio
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Figure 10-47 CSIv2 transport config
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Table 10-5 sas.client.props configu
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10.13.1 IBM SecureWay Directory Ser
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2. Click the Add Server button. The
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8. Click OK; a new window appears f
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Figure 10-56 LDAP directory with us
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Figure 10-57 WebSphere LDAP Configu
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Configuring the secure LDAP (LDAPS)
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Figure 10-59 Configuring SSL for Se
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Figure 10-60 SSL encryption setting
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choose not to differentiate between
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- Port: specify 636 which correspon
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A sample scenario is depicted next.
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Item Cell Node Server Appl.CosNamin
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JAAS configurationThe JAAS configur
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Individual CSI and SAS settingsThe
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The server security settings availa
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348 IBM WebSphere V5.0 Security Han
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11.1 Patterns for e-businessPattern
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►►►Buy-Side HubSell-Side HubT
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ClientTierSynchronousApplicationSyn
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►Application tier: may represent
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►certificates, access groups, etc
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Figure 11-6 presents the Runtime pa
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11.4 Product mappingsThis section p
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- Authorization ServerThe Authoriza
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The following secure communications
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This chapter covers four different
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andwidth to and from the server unt
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All of these benefits contribute to
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The Policy Server replicates this d
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ServerTivoli Access Manager WebSEAL
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Server Nameappsrv01, appsrv02Applic
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1. First, log in with your favorite
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1. In the Administrative Console, n
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12.4.1 Single Sign-On with WebSEALW
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correct. Then it trusts that the id
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8. In the Single Sign-On (SSO) pane
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User RegistryClient1. Request2. Aut
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Property keycom.ibm.Websphere.secur
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Figure 12-8 Trust Association Panel
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2. We will first configure LTPA aut
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e prompted for the keyfile password
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Example 12-2 WebSphere Security ini
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[8/22/02 7:42:44:163 CDT] 277a2e5c
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[8/22/02 7:42:47:449 CDT] 277a2e5c
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[8/22/02 7:42:51:655 CDT] 277a2e5c
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In this example, we have configured
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►►►WebSEAL can forward modifi
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LDAPServerPolicy/AuthorizationServe
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of inetOrg.Person as each junction
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Figure 12-13 Web Portal Manager Men
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Select the boxes Is Account Valid,
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Creating Access Manager JunctionsAt
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Figure 12-18 Protected Object Prope
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Figure 12-20 Create an ACL Entry4.
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Testing the junctionsThe following
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Figure 12-22 Successful access to i
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WebSEALAuthenticated Usersbefore fo
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At the same time, the tool creates
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- pdacld_port: the port number of t
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8. The next application migrated wa
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Do not make changes to the deployme
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Sample applicationThe purpose of th
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5. The Transfer EJB uses two entity
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The process flows as described belo
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You can download the clients from h
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Configuring WebSphere Application S
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Use this DataSource in container ma
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e. On the Map RunAs roles to users
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SecureWay Directory ServerThe confi
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Ensure that Domino is using the LDA
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Figure B-3 Domino LDAP settings in
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Figure B-4 Domino CA application2.
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Enable SSL on Domino ServerEnable S
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1. Open the ikeyman tool that comes
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3. WebSphere will validate your ent
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Figure B-9 iPlanet Directory Server
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Figure B-13 iPlanet Certificate Req
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Figure B-16 Certificate Install Wiz
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Figure B-19 iPlanet Encryption sett
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Tip from a battle scarred veteran p
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Figure B-21 Active Directory Users
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Figure B-24 New User password panel
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group membership, and other group a
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WebSphere-Domino SSO scenariosIn th
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7. Once the user is authenticated a
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6. Click OK to create a database.7.
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- On the Rules tab, specify the fol
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3. A new Document will be displayed
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Figure C-7 TCP/IP port status setti
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1. To add new user names or groups
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Figure C-10 Default Domino server l
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Figure C-13 Successful submission o
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Using Domino LDAP for user registry
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Enabling Single Sign-On for WebSphe
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wsadmin scriptingWebSphere Applicat
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3. In the line com.ibm.SOAP.loginUs
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You can also set the user registry
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Using the Web materialThe additiona
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SPISSLSSOSWAMUDDIURIURLVPNWARWASWSA
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Referenced Web sitesThese Web sites
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Application patternDirectly Integra
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EJB permissionsExclude 80Role 80Unc
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Llaunchclient 122LDAPAdvanced setti
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ORB 102System 366Unprotected method
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Gateway Security 155Gateway-level a
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