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

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Quality of protection POP policy The quality of protection POP attribute allows you to specify what level of data protection is required when performing an operation on an object. The quality of protection POP attribute is used to determine whether access will be granted to requested resource. When an ACL check for a resource succeeds, the quality of protection POP is checked. If a quality of protection POP exists, and the resource manager (WebSEAL) cannot guarantee the required level of protection, the request is denied. pdadmin> pop modify pop-name set qop {none|integrity|privacy} When QOP level is set to either integrity or privacy, WebSEAL requires data encryption through the use of Secure Socket Layer (SSL). For example: pdadmin> pop modify test set qop privacy Handling unauthenticated users (HTTP / HTTPS) WebSEAL accepts requests from both authenticated and unauthenticated users over HTTP and HTTPS. WebSEAL then relies on the authorization service to enforce security policy by permitting or denying access to protected resources. The following conditions apply to unauthenticated users who access WebSEAL over SSL: v The exchange of information between the unauthenticated user and WebSEAL is encrypted—just as it is with an authenticated user. v An SSL connection between an unauthenticated user and WebSEAL requires only server-side authentication. Processing a request from an anonymous client 1. An anonymous client makes a request to WebSEAL (over HTTP or HTTPS). 2. WebSEAL creates an unauthenticated credential for this client. 3. The request proceeds, with this credential, to the protected Web object. 4. The authorization service checks the permissions on the unauthenticated entry of the ACL for this object, and permits or denies the requested operation. 5. Successful access to this object depends on the unauthenticated ACL entry containing at least the read (r) and traverse (T) permissions. 6. If the request fails the authorization decision, the client receives a login form (BA or Forms-based). Forcing user login You can force an unauthenticated user to log in by correctly setting the appropriate permissions on the unauthenticated entry in the ACL policy that protects the requested object. The read (r) and traverse (T) permissions allow unauthenticated access to an object. To force an unauthenticated user to log in, remove the read (r) permission from the unauthenticated entry in the ACL policy that protects the object. The user receives a login prompt (BA or Forms-based). 126 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
Applications of unauthenticated HTTPS There are many practical business reasons for supporting unauthenticated access to WebSEAL over HTTPS: v Some applications do not require a personal login, but require sensitive information, such as addresses and credit card numbers. Examples include online purchases of airline tickets and other merchandise. v Some applications require that you register for an account with the business before you can proceed with further transactions. Again, sensitive information must be passed over the network. Chapter 5. WebSEAL security policy 127
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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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Page 106 and 107: Parameter Description cache-type Sp
Page 108 and 109: HTTP data compression WebSEAL serve
Page 110 and 111: Compression policy in POPs You can
Page 112 and 113: HTTP error message pages When WebSE
Page 114 and 115: Filename Title Description HTTP Err
Page 116 and 117: Managing custom account management
Page 118 and 119: Macro Description %CERTAUTHN% Subst
Page 120 and 121: Backup and restore Tivoli Access Ma
Page 122 and 123: Problem determination tools for Web
Page 124 and 125: Logging WebSEAL serviceability mess
Page 126 and 127: Event capturing and logging You can
Page 128 and 129: In this example, none of the option
Page 130 and 131: Authentication event log output Aut
Page 132 and 133: Table 18. Authentication errors (co
Page 134 and 135: Log Files Location Parameter Enable
Page 136 and 137: Displaying referer.log The referer.
Page 138 and 139: WebSEAL-specific ACL policies The f
Page 140 and 141: Configuring three strikes login pol
Page 142 and 143: Configuring password strength polic
Page 144 and 145: Specific user and global settings T
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Page 148 and 149: The entry level = unauthenticated m
Page 150 and 151: Table 20. Example integer values fo
Page 152 and 153: pdadmin> pop modify test set ipauth
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Page 158 and 159: Overview of the authentication proc
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Page 164 and 165: eauthenticating the user. WebSEAL u
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Page 170 and 171: Configuring multiple authentication
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Page 174 and 175: You can configure the username and
Page 176 and 177: Configuration conditions If forms a
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Page 180 and 181: Setting Description accept-client-c
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Page 186 and 187: See also: v “Authentication metho
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Page 190 and 191: 2. WebSEAL returns an authenticatio
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Page 198 and 199: Administrators can configure WebSEA
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Backwards compatibility WebSEAL ser
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[failover-add-attributes] attribute
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v When this value is no, and the se
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SPNEGO protocol and Kerberos authen
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v The client cannot use an SSL sess
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186 IBM Tivoli Access Manager for e
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Switch user authentication The WebS
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9. The administrator ends the switc
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supported mechanism, an additional
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The authentication method parameter
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The default file name is switchuser
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xauthn_username xauthn_qop xauthn_i
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Server-side request caching This se
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v “Modifying request-body-max-rea
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Configuring reauthentication based
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Extending the session cache entry l
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Configuring reauthentication based
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Extending the session cache entry l
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Automatic redirection during user l
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Configuring post password change pr
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WebSEAL provides an external authen
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credattrs_email joeuser@bigco.com c
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Credential refresh This section con
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The default lifetime of data in the
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Credential refresh configuration To
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efresh can succeed. Likewise, when
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Managing client-side and server-sid
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At installation, WebSEAL uses the s
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Setting the maximum number of cache
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Windows desktop single sign-on This
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v Failover authentication The failo
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Each WebSEAL instance must have a s
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highly secure password, such as a r
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Note: The location of the kinit uti
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v When a problem occurs, consider e
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The link contains a special CDSSO m
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2. Edit /etc/nsswitch.conf so the h
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[authentication-mechanisms] sso-cre
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http://websealB/resource.html?PD-ID
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Each entry in the WebSEAL is assign
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e-community single sign-on E-commun
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A user who fails authentication wit
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4. After successful login, the MAS
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v The domain-specific cookie contai
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owser is Microsoft Internet Explore
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1. Enabling and disabling e-communi
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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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