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PH04047: WAS PLUG-IN V9 FOR IHS V9 AND APACHE 2.4. FORWARD USERAGENT_IP TO SUPPORT USE OF MOD_REMOTEIP IN IHS V9 AND APACHE 2.4

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APAR status

  • Closed as new function.

Error description

  • In Apache 2.4 and IHS V9, modules can lookup two kinds of
    client addresses -- the immediate TCP peer and the client
    address that may have been sent with X-Forwarded-For or other
    header by a trusted proxy.
    
    This is via these two elements:
    
    r->connection->client_ip (always TCP peer)
    r->useragent_ip (starts as TCP peer, mod_remoteip module may
    copy X-Forwarded-For in case of a trusted proxy)
    
    The plugin should use the latter under Apache 2.4 and IHS v9.
    Please note in APAR if this will affect value for $WSRA or
    other forwarded by PLG.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Apache     *
    *                  24 plugin users                             *
    ****************************************************************
    * PROBLEM DESCRIPTION: The remote client IP is not set         *
    *                      correctly when using apache 24 and      *
    *                      the WebSphere web server plugin.        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The remote client IP may not be accurate when using apache 24.
    If the remote client IP is set using mod_remoteip and
    RemoteIPHeader then this fix is required.
    

Problem conclusion

  • The WebSphere web server plugin was using the wrong data
    member to set to the remote IP for apache 24 web server users.
    Code has been corrected to obtain the value from the correct
    location.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 8.5.5.15 and 9.0.0.11.  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

    PH04047

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-10-12

  • Closed date

    2018-12-18

  • Last modified date

    2018-12-18

  • 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

  • R850 PSY

       UP

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
14 October 2021