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PI52613: SAML SP-INITIATED WEB SSO REQUIRES DYNACACHE OR FRONTEND AFFINITY

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • SAML SP-initiated Web SSO requires that an Identity Provider
    server send its SAMLResponse back to the entity which initially
    solicited it via a SAMLRequest.
    
    In a cluster environment, if you are unable to use session
    affinity or dynacache, SP-initiated SAML Web SSO will not work.
    

Local fix

  • enable dynacache or session affinity in the environment
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server and SAML Web SSO                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: SAML SP-initiated Web SSO may not       *
    *                      work properly in a cluster environment  *
    ****************************************************************
    * RECOMMENDATION:  Install a fix pack that contains this       *
    *                  APAR.                                       *
    ****************************************************************
    Since SAML SP-initiated Web Single Sign-on (SSO) depends on
    the SAMLResponse from the identity provider (IdP) being sent
    back to the same server that sent the SAMLRequest, it may not
    work properly in a cluster environment.
    

Problem conclusion

  • SAML SP-initiated Web SSO requires that an Identity Provider
    server send its SAMLResponse back to the entity which initially
    solicited it via a SAMLRequest. In a cluster environment,
    when the IdP sends the SAMLResponse, without session
    affinitiy, the individual cluster member that receives the
    response is indeterminate. If the cluster member  that
    receives the response is not the member that sent the
    SAMLRequest, the login process will fail.
    
    The SAML Web SSO TAI is updated so that, in a Network
    Deployment environment, when one cluster member sends a
    SAMLRequest to an IdP, any cluster member can process the
    SAMLResponse and complete the login request.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.43, 8.0.0.13, and 8.5.5.10.  Please refer to
    the Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    
    Keywords: IBMWL3WSS, SAMLWSSO
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI52613

  • Reported component name

    WAS EXPRESS

  • Reported component ID

    5724I6300

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-11-16

  • Closed date

    2016-04-26

  • Last modified date

    2016-09-21

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WAS EXPRESS

  • Fixed component ID

    5724I6300

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server - Express
General

Software version: 850

Reference #: PI52613

Modified date: 21 September 2016