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PM89884: DYNAMIC SPNEGO CONFIGURATION UPDATES CAN RESULT IN AN EXCESSIVE NUMBER OF LOG ENTRIES INDICATING KERBEROS TOKEN EXPIRATION.

Fixes are available

8.5.5.1: WebSphere Application Server V8.5.5 Fix Pack 1
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
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
7.0.0.35: 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
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Rational Team Concert (RTC) is running on WebSphere Application
    Server with SPNEGO used as Single Sign on (SSO).
    Some frames in the RTC application are not rendered at all or
    are rendered partially. This results in the application server
    continually reauthenticating requests for each frame when
    SPNEGO dynamic reloading is enabled.
    We have established this issue is caused by the Kerberos token
    time-to-live being set to zero. This is occurring when a SPNEGO
    config is rebuilt dynamically.
    The exception may look like below.
    ----
    [05/05/14 09:31:20:387 CEST] 00000fc9 SubjectHelper <
    getKerberosAuthnTokenFromSubject Exit
                                     Subject:
        Principal: userA@IBM.US
        Principal: ldap.ibm.us:389/usera-id
        Public Credential:
    com.ibm.ws.security.auth.WSCredentialImpl@9513652c
        Private Credential:
    token name:
    com.ibm.wsspi.wssecurity.token.krbAuthnToken
    version:            1
    hashCode:           100416
    uniqueId:           usera-id
    kerberos principal: usera-id
    realm:              IBM.US
    expiration:         Mon May 05 09:31:20 CEST 2014
    renew until:        null
    isReadOnly:         false
    isAddressless:      false
    isForwardable:      false
    isRenewable:        false
    KerberosTicket:     Kerberos TGT is null.
    GSSCredential:      null
        Private Credential:
    com.ibm.ws.security.token.SingleSignonTokenImpl@58b56459
        Private Credential:
    com.ibm.ws.security.token.AuthenticationTokenImpl@d249f030
    [05/05/14 09:31:20:389 CEST] 00000fc9 ContextManage 3   login
    failed:
    com.ibm.websphere.security.auth.WSLoginFailedException:
    org.ietf.jgss.GSSException, major code: 8, minor code: 0
        major string: Credential expired
        minor string: GSSCredential expired, must login again.
    Additional search keywords: outofmemory out of memory
    

Local fix

  • Disable SPNEGO dynamic reloading. It should be noted this may
    cause issues with other applications.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server                                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: Dynamic SPNEGO configuration updates    *
    *                      can result in excessive Kerberos        *
    *                      token expiration.                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Dynamic SPNEGO updates result in Kerberos token timeout to
    zero. This results in every request requiring a login.
    These logins are successful.
    In the customers reported RTC environment it caused pages on
    the workbench to fail to load, because of RTC behavior.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PM89884

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2013-05-28

  • Closed date

    2013-07-23

  • Last modified date

    2015-01-26

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 8.0

Reference #: PM89884

Modified date: 26 January 2015