IBM Tivoli Access Manager for e-business: WebSEAL Administration ...

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credattrs_email joeuser@bigco.com credattrs_businesscategory finance Note that the service, source, and attributes can be multi-valued. If you specify the same attribute name as a stanza entry keyword, then the attributes retrieved will be added as a multi-valued attribute even when they come from different sources. For example, more than one entitlement service can be chained together. This enables values retrieved from one service. to be used as input values for another service. Likewise, attributes can be retrieved from more than one DN in the user registry. Thus, using the example above, you could add values from multiple users (DNs) to one credattrs_businesscategory attribute, if you wanted a list of all the businesscategory entries for a group of users. For example, if you want to build an attribute called myemployeeinfo to add to the credential, and you want this attribute to contain the last name and employee type of everyone that authenticates, you could then define the following: [myID] source = azn_cred_authzn_id [myID:source] myemployeeinfo = lastname myemployeeinfo = employeetype Junction handling of extended credential attributes The user-defined credential information created in the previous section can be placed in an HTTP header of the request that is sent across a junction to a back-end server. You must configure the junction to extract extended attribute data from the credential and insert the data into the HTTP header of the request. This functionality is achieved by setting a junction extended attribute, called HTTP-Tag-Value, on the junction object in the WebSEAL protected object space. You use the pdadmin object modify set attribute command to set extended attributes on a junction object in the WebSEAL protected object space. pdadmin> object modify object_name set attribute attr_name attr_value The above command must be entered as one continuous command line. An extended attribute (attr_name) enables the junction to perform a specific type of functionality. The HTTP-Tag-Value extended attribute instructs the junction to extract a particular value from a user’s credential and send the value to the back-end server in an HTTP header. The value of the HTTP-Tag-Value extended attribute uses the following format: credential_extended_attribute_name = http_header_name The credential_extended_attribute_name entry is the same as the attributed specified in the WebSEAL configuration file but without the ″tagvalue_″ prefix. The entry is not case-sensitive. The http_header_name entry specifies the name of the HTTP header used to deliver the data across the junction. For example: 218 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
pdadmin> object modify /WebSEAL/WS1/junctionA set attribute \ HTTP-Tag-Value ldap-employee-number=employee-id When WebSEAL processes a user request to a back-end application server, it looks for any HTTP-Tag-Value attributes configured on the junction object. In this example, the configured junction looks at the credential of the user making the request, extracts the value of the tagvalue_ldap-employee-number credential extended attribute, and places it in an HTTP header as: employee-id:09876 In summary: Value of HTTP-Tag-Value attribute set on the junction object: ldap-employee-number=employee-id Attribute name and value as they appear in the user credential: tagvalue_ldap-employee-number:09876 HTTP header name and value: employee-id:09876 If the back-end application is a CGI application, the CGI specification dictates that HTTP headers are made available to CGI programs as environment variables in the form: HTTP_http_header_name For example: HTTP_employee-id=09876 Multiple user attribute data can be passed to the junctioned server in HTTP headers by using multiple pdadmin object modify set attribute commands to specify multiple HTTP-Tag-Value junction attributes (one attribute is specified per command). Chapter 7. Advanced WebSEAL authentication 219
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IBM Tivoli Access Manager for e-bus
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Note Before using this information
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Silent configuration overview . . .
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Event capturing and logging . . . .
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Token authentication concepts . . .
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Configuring WebSEAL key database pa
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Preserving cookie names . . . . . .
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Logging . . . . . . . . . . . . . .
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xvi IBM Tivoli Access Manager for e
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This chapter introduces you to impo
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Web security information v IBM Tivo
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v Secure Sockets Layer Introduction
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The following documents associated
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Monospace Code examples, command li
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IBM Tivoli Access Manager WebSEAL:
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The access control list (ACL) An ac
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Note: Traditional applications bund
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v Authenticated clients access usin
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v A user makes a request for a reso
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A unified Web space simplifies the
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14 IBM Tivoli Access Manager for e-
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Server instance configuration This
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Table 1. WebSEAL instances sharing
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- When the Web document root is not
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-ssl_yn ssl_enable_yes_no -key_file
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Server instance configuration tasks
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Removing a server instance To remov
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Communication protocol configuratio
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Restricting connections from specif
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Cryptographic hardware for encrypti
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You can specify whether to enable F
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3. In the Open dialog window, selec
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Quality of protection levels You ca
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Configuring authorization database
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3. Change the settings for the data
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Multi-locale support with UTF-8 Thi
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WebSEAL generates logging and audit
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Configuring multi-locale support Co
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WebSEAL does not recognize UTF-8 en
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ackwards compatibility, the format
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Language System Directory English (
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Preventing vulnerability caused by
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Replicated front-end WebSEAL server
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The session cookie links to session
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Table 4. P3P default header values
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Table 6. Supported values for the c
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For each value specified for purpos
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example, when your compact policy s
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70 IBM Tivoli Access Manager for e-
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Server tasks Start a WebSEAL server
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Managing the Web space The followin
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You can configure the specific grap
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Parameter Description cache-type Sp
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HTTP data compression WebSEAL serve
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Compression policy in POPs You can
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HTTP error message pages When WebSE
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Filename Title Description HTTP Err
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Managing custom account management
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Macro Description %CERTAUTHN% Subst
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Backup and restore Tivoli Access Ma
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Problem determination tools for Web
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Logging WebSEAL serviceability mess
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Event capturing and logging You can
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In this example, none of the option
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Authentication event log output Aut
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Table 18. Authentication errors (co
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Log Files Location Parameter Enable
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Displaying referer.log The referer.
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WebSEAL-specific ACL policies The f
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Configuring three strikes login pol
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Configuring password strength polic
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Specific user and global settings T
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v token authentication v certificat
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The entry level = unauthenticated m
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Table 20. Example integer values fo
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pdadmin> pop modify test set ipauth
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Quality of protection POP policy Th
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128 IBM Tivoli Access Manager for e
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Overview of the authentication proc
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Managing session state A secure con
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This value corresponds to the numbe
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eauthenticating the user. WebSEAL u
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v Because the cookies are available
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Authentication configuration overvi
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Configuring multiple authentication
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3. When the client makes an additio
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You can configure the username and
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Configuration conditions If forms a
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If the security policy does require
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Setting Description accept-client-c
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Thus, the default value for cert-ca
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HTTP header authentication Tivoli A
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See also: v “Authentication metho
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Token authentication Tivoli Access
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2. WebSEAL returns an authenticatio
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4. Restart the WebSEAL server. See
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Failover authentication This sectio
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Page 198 and 199: Administrators can configure WebSEA
Page 200 and 201: cookie. By using the cookie, the We
Page 202 and 203: Specify the protocol for failover c
Page 204 and 205: Backwards compatibility WebSEAL ser
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Page 210 and 211: SPNEGO protocol and Kerberos authen
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Page 216 and 217: Switch user authentication The WebS
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Page 220 and 221: supported mechanism, an additional
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Page 228 and 229: Server-side request caching This se
Page 230 and 231: v “Modifying request-body-max-rea
Page 232 and 233: Configuring reauthentication based
Page 234 and 235: Extending the session cache entry l
Page 236 and 237: Configuring reauthentication based
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Page 240 and 241: Automatic redirection during user l
Page 242 and 243: Configuring post password change pr
Page 244 and 245: WebSEAL provides an external authen
Page 248 and 249: Credential refresh This section con
Page 250 and 251: The default lifetime of data in the
Page 252 and 253: Credential refresh configuration To
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Page 256 and 257: Managing client-side and server-sid
Page 258 and 259: At installation, WebSEAL uses the s
Page 260 and 261: Setting the maximum number of cache
Page 262 and 263: Windows desktop single sign-on This
Page 264 and 265: v Failover authentication The failo
Page 266 and 267: Each WebSEAL instance must have a s
Page 268 and 269: highly secure password, such as a r
Page 270 and 271: Note: The location of the kinit uti
Page 272 and 273: v When a problem occurs, consider e
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Page 282 and 283: Each entry in the WebSEAL is assign
Page 284 and 285: e-community single sign-on E-commun
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Page 288 and 289: 4. After successful login, the MAS
Page 290 and 291: v The domain-specific cookie contai
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[e-community-domain-keys] dA.com =
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For example: [e-community-sso] vf-u
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[server] pre-510-compatible-tokens
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[ecsso-incoming-attributes] my_spec
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WebSEAL junctions overview You can
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Managing junctions with Web Portal
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Configuring a basic WebSEAL junctio
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Mutually authenticated SSL junction
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v It is highly recommended that you
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WebSEAL-to-WebSEAL junctions over S
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v “Processing URLs in requests”
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Modifying absolute URLs with script
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To solve this problem: 1. Always wr
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You must create the jmt.conf mappin
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Part 2: -j junctions modify Set-Coo
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Supplying client identity in HTTP h
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[junction] max-webseal-header-size
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ack-end server UUID to each front-e
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v Back-end server 2 is called APP2
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lcp_uri URI encoded local code page
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v Do not mark any certificate in th
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1. Copy query_contents.sh into a fu
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Typical output looks like: 100 inde
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Configuring BA headers for single s
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Forwarding original client BA heade
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Using global sign-on (GSO) Tivoli A
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Configuring a GSO-enabled WebSEAL j
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Configuring single sign-on to IBM W
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Configuring single sign-on forms au
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WebSEAL parses the HTML page to ide
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[loginpage1] login-page = /cgi-bin/
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It is not necessary to specify hidd
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Supporting CGI programming To suppo
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Supporting back-end server-side app
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v Short name of the server v IP add
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pdadmin> objectspace create /Resour
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A single user that logs in multiple
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346 IBM automatically with no user
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Note: If you use Web Portal Manager
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Object Space Entry URL Template /ow
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The following sample dynurl.conf fi
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The security policy To provide suit
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Overview of ADI retrieval The Tivol
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The resource-manager-provided-adi p
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Retrieving ADI from the user creden
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Dynamic ADI retrieval Rules can be
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Basic configuration Basic configura
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trace_verbose_get_entitlement If se
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Erandt_Securtities_Entitlements e
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http://ese.erant.com/attributes 1 U
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376 IBM v v /opt/pdwebars/protocol_
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Windows C:\Program Files\Tivoli\PDW
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including tracking CGI types, compi
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Stanza organization The remainder o
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Server configuration v [server] v [
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HTTP/1.1 connection timeout, in sec
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Location of the file that contains
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Enable or disable support for UTF-8
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Specifies how WebSEAL responds to r
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Host name of the LDAP server. The W
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cache-group-expire-time = number_of
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String that specifies the key label
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Active Directory [uraf-ad] stanza a
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ind-pwd = admin_password Encoded ad
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LDAP port number for the Lotus Domi
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Secure Socket Layer [ssl] stanza we
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Disables support for SSL Version 2.
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Port number for communication with
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Indicates whether automatic refresh
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Authentication methods [ba] stanza
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Specifies how to handle certificate
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Step-up authentication levels. WebS
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Fully qualified path for a library
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failover-certificate = fully_qualif
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Authentication failover v [failover
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List of attributes from the origina
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Cross-domain single sign-on v [cdss
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attribute_pattern = {preserve|refre
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Integer value specifying the port n
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File names for keys for any domains
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List of string values to specify th
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Integer value for lifetime, in seco
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Content This section contains the f
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Specifies how standard WebSEAL HTML
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Page containing a change password f
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Automatic redirect v [acnt-mgt] v [
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List containing system environment
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Relative path name to a graphics fi
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Content compression v [compress-mim
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Content encodings [content-encoding
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Junction management [junction] stan
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Positive integer value indicating t
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Document filtering [filter-url] sta
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Scheme filtering [filter-schemes] s
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Script filtering v [script-filterin
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Credential refresh [credential-refr
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Integer value that specifies the ti
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Integer value that specifies the ti
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Enables or disables the requests lo
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Auditing [aznapi-configuration] sta
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Specifies event logging for the spe
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The maximum size of the in-memory p
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Policy server v [policy-director] v
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Specifies the type of access the us
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v state Mechanisms for maintaining
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Specifies the purpose of the inform
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Specifies the recipients of the inf
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For example, if the configured name
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-p port TCP port of the back-end th
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IBM may use or distribute any of th
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asic authentication configuring 145
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F failover authentication configura
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key management (continued) managing
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eauthentication (continued) based o
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User Registry Adapter Framework (UR
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