IBM Support

PM77980: IBM HTTP SERVER SHOULD NOT ADD THE SERVER: HEADER BY DEFAULT

Fixes are available

8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2
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
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.33: 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
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

  • IBM HTTP Server V7 and later have an option to disable
    generating the Server: HTTP response header, but suppressing
    the header should be the default behavior per current security
    guidelines.  Note that very little practically useful
    information is included in the Server: header by default
    ("IBM_HTTP_Server" with no version or release info).
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of IBM HTTP Server (IHS) V7.0 and     *
    *                  later that have not configured              *
    *                  "AddServerHeader OFF".                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: IHS adds the "Server" header with a     *
    *                      value of "IBM_HTTP_Server"  to all      *
    *                      responses, unless "AddServerHeader OFF" *
    *                      is configured.                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    IHS 7.0 and later allows administrators to suppress the "Server"
    HTTP response header, but it requires explicit configuration.
    It
    was determined that adding this info should instead be opt-in.
    

Problem conclusion

  • When no AddServerHeader directive is configured, IHS now
    defaults to "AddServerHeader OFF" behavior.
    
    This fix is targeted for IBM HTTP Server fixpacks:
     - 7.0.0.29
     - 8.0.0.6
     - 8.5.0.2
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM77980

  • Reported component name

    IBM HTTP SERVER

  • Reported component ID

    5724J0801

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-11-28

  • Closed date

    2012-12-03

  • Last modified date

    2013-03-01

  • 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

    IBM HTTP SERVER

  • Fixed component ID

    5724J0801

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP

[{"Line of Business":{},"Business Unit":{"code":"BU029","label":"Software"},"Product":{"code":"SSEQTJ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0"}]

Document Information

Modified date:
25 September 2020