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

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Quality of protection levels You can control the default level of encryption required for access to WebSEAL over SSL (HTTPS) by configuring the quality of protection (QOP). Default quality of protection management is controlled using parameters in the ″SSL QUALITY OF PROTECTION MANAGEMENT″ section of the WebSEAL configuration file: v Enable and disable QOP management with the ssl-qop-mgmt parameter v Specify allowed encryption levels in the [ssl-qop-mgmt-default] stanza 1. Enable quality of protection management: [ssl-qop] ssl-qop-mgmt = yes 2. Specify the default encryption level for HTTPS access. The syntax is: default = {ALL|NONE|cipher_level} Supported values for cipher_level are: NONE, ALL, NULL, DES-56, FIPS-DES-56, DES-168, FIPS-DES-168, RC2-40, RC2-128, RC4-40, RC4-56, RC4-128, AES-128, AES-256 NONE disable For example: [ssl-qop-mgmt-default] default = ALL Note that you can also specify a selected group of ciphers: [ssl-qop-mgmt-default] default = RC4-128 default = RC2-128 default = DES-168 Notes: v NONE means that no SSL connection allowed. v NULL means that unencrypted SSL connection allowed. v ALL means that all types of SSL connections allowed. v There can be multiple cipher/MAC made available to the connection for a given qop cipher selection. These will still have the same encryption bit strength, just different MAC methods (SHA1 or MD5) v RC2-128 is only available with SSLv2. If it is the only cipher selection, WebSEAL will disable SSLv3 and TLSv1 for the affected connection. v NULL, FIPS-DES-56, FIPS-DES-168, RC4-56, AES-128, and AES-256 are only available with SSLv3 and TLSv1. If they are the only ciphers available to a given connection, SSLv2 will be disabled for the affected connection. v AES Support is determined automatically by GSKit based on the base-crypto-library setting. AES-128 and AES-256 are only available if AES Support is enabled by GSKit, else they will be ignored. v FIPS-DES-56 and FIPS-DES-168 are only available when fips-mode- processing is enabled (set to yes). Otherwise they are ignored Tivoli Access Manager uses GSKit 7. The Cipher specifications supported by GSKIT7 when used in SSLv2/TLS in internet security are: SSL_RSA_WITH_NULL_MD5 SSL_RSA_WITH_NULL_SHA 38 IBM Tivoli Access Manager for e-business: WebSEAL Administration Guide
SSL_RSA_EXPORT_WITH_RC4_40_MD5 SSL_RSA_WITH_RC4_128_MD5 SSL_RSA_WITH_RC4_128_SHA SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 SSL_RSA_EXPORT_WITH_DES40_CBC_SHA SSL_RSA_WITH_DES_CBC_SHA SSL_RSA_WITH_3DES_EDE_CBC_SHA TLS_RSA_WITH_AES_128_CBC_SHA TLS_RSA_WITH_AES_256_CBC_SHA TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA TLS_RSA_EXPORT1024_WITH_RC4_56_SHA SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA These TLS cipher specifications are also used with SSLV3. QOP for individual hosts and networks The ssl-qop-mgmt = yes parameter also enables any settings that appear in the [ssl-qop-mgmt-hosts] and [ssl-qop-mgmt-networks] stanzas. These stanzas allow quality of protection management by specific host/network/netmask IP address. The [ssl-qop-mgmt-default] stanza lists the ciphers used for all IP addresses not matched in the [ssl-qop-mgmt-hosts] and [ssl-qop-mgmt-networks] stanzas. Example configuration syntax for hosts: [ssl-qop-mgmt-hosts] xxx.xxx.xxx.xxx = ALL yyy.yyy.yyy.yyy = RC2-128 Example configuration syntax for network/netmask: [ssl-qop-mgmt-networks] xxx.xxx.xxx.xxx/255.255.255.0 = RC4-128 yyy.yyy.yyy.yyy/255.255.0.0 = DES-56 The [ssl-qop-mgmt-hosts] and [ssl-qop-mgmt-networks] stanzas are provided for backward compatibility only. It is recommended that you not use them for Tivoli Access Manager configuration. Note that entry for an IP address specified under [ssl-qop-mgmt-hosts] takes priority over an entry for the same address in [ssl-qop-mgmt-networks]. Likewise, an entry in [ssl-qop-mgmt-networks] takes priority over an entry for the same address in [ssl-qop-mgmt-default]. If you must use [ssl-qop-mgmt-hosts] or [ssl-qop-mgmt-networks] for backwards compatibility, review the IP address settings under all stanzas to ensure that a specific IP address is not listed under more than one stanza. If an IP address is listed under more than one stanza, ensure that the order of evaluation yields the desired configuration. Chapter 2. WebSEAL server configuration 39
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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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Page 18 and 19: xvi IBM Tivoli Access Manager for e
Page 20 and 21: This chapter introduces you to impo
Page 22 and 23: Web security information v IBM Tivo
Page 24 and 25: v Secure Sockets Layer Introduction
Page 26 and 27: The following documents associated
Page 28 and 29: Monospace Code examples, command li
Page 30 and 31: IBM Tivoli Access Manager WebSEAL:
Page 32 and 33: The access control list (ACL) An ac
Page 34 and 35: Note: Traditional applications bund
Page 36 and 37: v Authenticated clients access usin
Page 38 and 39: v A user makes a request for a reso
Page 40 and 41: A unified Web space simplifies the
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Page 44 and 45: Server instance configuration This
Page 46 and 47: Table 1. WebSEAL instances sharing
Page 48 and 49: - When the Web document root is not
Page 50 and 51: -ssl_yn ssl_enable_yes_no -key_file
Page 52 and 53: Server instance configuration tasks
Page 54 and 55: Removing a server instance To remov
Page 56 and 57: Communication protocol configuratio
Page 58 and 59: Restricting connections from specif
Page 60 and 61: Cryptographic hardware for encrypti
Page 62 and 63: You can specify whether to enable F
Page 64 and 65: 3. In the Open dialog window, selec
Page 68 and 69: Configuring authorization database
Page 70 and 71: 3. Change the settings for the data
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Page 74 and 75: WebSEAL generates logging and audit
Page 76 and 77: Configuring multi-locale support Co
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Page 82 and 83: Language System Directory English (
Page 84 and 85: Preventing vulnerability caused by
Page 86 and 87: Replicated front-end WebSEAL server
Page 88 and 89: The session cookie links to session
Page 90 and 91: Table 4. P3P default header values
Page 92 and 93: Table 6. Supported values for the c
Page 94 and 95: For each value specified for purpos
Page 96 and 97: example, when your compact policy s
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Page 100 and 101: Server tasks Start a WebSEAL server
Page 102 and 103: Managing the Web space The followin
Page 104 and 105: You can configure the specific grap
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
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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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authenticates using forms authentic
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Administrators can configure WebSEA
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cookie. By using the cookie, the We
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Specify the protocol for failover c
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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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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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