IBM Support

PI66128: SAML WEB SSO MAY REJECT REQUESTS WHEN PROXY IS IN USE

Fixes are available

9.0.0.2: WebSphere Application Server traditional V9.0 Fix Pack 2
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
9.0.0.3: WebSphere Application Server traditional V9.0 Fix Pack 3
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
9.0.0.4: WebSphere Application Server traditional V9.0 Fix Pack 4
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
9.0.5.6: WebSphere Application Server traditional Version 9.0.5 Fix Pack 6

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APAR status

  • Closed as program error.

Error description

  • SAML Web SSO rejects requests from an identity provider when
    the request must go through a proxy.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server            *
    *                  administrators of SAML Web SSO              *
    ****************************************************************
    * PROBLEM DESCRIPTION: SAML Web SSO may reject requests when   *
    *                      a proxy is in use.                      *
    ****************************************************************
    * RECOMMENDATION:  Install a fix pack that includes this       *
    *                  APAR.                                       *
    ****************************************************************
    When a proxy is placed in front of the WebSphere
    Application Server system that is hosting the SAML Web Single
    Sign-on (SSO) Trust Association Interceptor (TAI),
    HTTP requests from the identity provider (IdP) that go
    through the proxy to the TAI may be rejected.
    

Problem conclusion

  • When a proxy is placed in front of the WebSphere system that
    is hosting the SAML Web Single Sign-on (SSO) Trust
    Association Interceptor (TAI), the URL in the requests made to
    the TAI will contain the host and port of the proxy.  When
    the request comes from the identity provider (IdP) and the
    TAI compares the URL in the request to the acsURL, the requests
    don't match, so the request is rejected.
    
    The SAML Web SSO TAI is updated to disregard the host/port
    when comparing request URLs to the configured acsURL.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.43, 8.0.0.14, 8.5.5.11 and 9.0.0.2.  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

    PI66128

  • 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

    2016-07-19

  • Closed date

    2016-09-06

  • Last modified date

    2016-09-14

  • 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

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SS7JFU","label":"WebSphere Application Server - Express"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
16 October 2021