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PM45259: NULLPOINTEREXCEPTION WHEN WS-SECURITY ATTEMPTS TO GENERATE AN LTPA TOKEN FROM RUNAS SUBJECT

Fixes are available

8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
6.1.0.43: Java SDK 1.5 SR13 Cumulative Fix for WebSphere Application Server
6.1.0.45: Java SDK 1.5 SR14 Cumulative Fix for WebSphere Application Server
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

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APAR status

  • Closed as program error.

Error description

  • If WS-Security is configured to generate LTPA Tokens from the
    current WebSphere identity, but no user has been authenticated,
    a java.lang.NullPointerException may occur.
    

Local fix

  • na
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server            *
    *                  users of WS-Security enabled Web Services   *
    *                  and LTPA tokens                             *
    ****************************************************************
    * PROBLEM DESCRIPTION: If WS-Security generates LTPA Tokens    *
    *                      from the current WebSphere identity, a  *
    *                      java.lang.NullPointerException may      *
    *                      occur.                                  *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    If WS-Security is configured to generate an LTPA Token from the
    current WebSphere identity, but no user has been authenticated,
    a java.lang.NullPointerException error may occur.
    The following may be observed in the SystemOut.log:
    faultString: com.ibm.wsspi.wssecurity.SoapSecurityException:
    WSEC6526E:Unable to handle the callbacks by the callback
    handler
    [com.ibm.wsspi.wssecurity.auth.callback.LTPATokenCallbackHandler
    ]:java.io.IOException: Error doing token propagation
    processing:
    java.lang.NullPointerException: null
    The WS-Security runtime will attempt to use the current
    WebSphere identity when there is no userid and password
    associated with the LTPA Token Generator callback handler.
    

Problem conclusion

  • The WS-Security runtime assumed that, if a non-null runAs
    Subject was returned from base security, a non-null
    AuthenticationToken would always be present on that Subject.
    That assumption is not valid.
    
    Since the LTPA token is generated from the AuthenticationToken
    on the runAs subject, when the AuthenticationToken is null, an
    LTPA token cannot be generated for that runAs subject.
    
    The WS-Security runtime is updated to ensure that there is an
    AuthenticationToken present on the runAs subject before
    attempting to create an LTPA token from the current WebSphere
    identity.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 6.0.0.43, 7.0.0.23 and 8.0.0.3.  Please refer to the
    Recommended Updates page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM45259

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-08-08

  • Closed date

    2011-11-21

  • Last modified date

    2011-11-28

  • 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

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61I PSY

       UP

  • R61P PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP

  • R61Z PSY

       UP

  • R700 PSY

       UP

  • R800 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PM45259

Modified date: 28 November 2011