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PH21890: EXTERNAL AUTHENTICATION RETRIEVED USER VIA TAI INTERCEPT AS UNAUTHENTICATED FAILED WITH NULL FOR GETUSERPRINCIPAL

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APAR status

  • Closed as program error.

Error description

  • If an authenticated user's name ends with the same
    string as predefined unauthenticated user name,
    WebSphere treat the user as unauthenticated user.  For this
    user, Servlet API: getUserPrincipal() returns null instead of
    the user name.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: An authenticated user is treated as     *
    *                      unauthenticated if the username ends    *
    *                      with predefined unauthenticated user.   *
    ****************************************************************
    * RECOMMENDATION:  Avoid user name that ends with              *
    *                  "UNAUTHENTICATED" (distributed) or          *
    *                  "WSGUEST"(zOS) . For example, do not use    *
    *                  "ABC_UNAUTHENICATED" or "MY_WSGUEST"        *
    ****************************************************************
    There was incorrect logic in authentication logic, that
    incorrectly mark user as unauthenticated .
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PH21890

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-02-06

  • Closed date

    2020-02-12

  • Last modified date

    2020-02-12

  • 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



Document information

More support for: WebSphere Application Server
General

Software version: 850

Reference #: PH21890

Modified date: 12 February 2020