IBM Support

PI96273: Some 404 and 500 errors in OAuth or OpenID Connect might expose configuration information.

Fixes are available

18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12

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APAR status

  • Closed as program error.

Error description

  • Some error scenarios in OAuth and OpenID Connect that
    produce 404 or 500 HTTP error responses will include
    WebSphere Liberty server error messages in the web page that
    is displayed to the end user. Specifically, WebSphere
    Liberty server error messages with IDs CWOAU0039W,
    CWWKS1413E, or CWWKS1620E might be displayed in a web
    browser to an end user in certain error conditions. These
    server error messages might disclose sensitive information
    that could be used to launch further attacks against the web
    application.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Liberty - Web Services Security      *
    ****************************************************************
    * PROBLEM DESCRIPTION: Some 404 and 500 errors in OAuth or     *
    *                      OpenID Connect might expose             *
    *                      configuration information.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Some error scenarios in OAuth and OpenID Connect that produce
    404 or 500 HTTP error responses will include WebSphere Liberty
    server error messages in the web page that is displayed to the
    end user. Specifically, WebSphere Liberty server error messages
    with IDs CWOAU0039W, CWWKS1413E, or CWWKS1620E might be
    displayed in a web browser to an end user in certain error
    conditions. These server error messages might disclose sensitive
    information that could be used to launch further attacks against
    the web application.
    

Problem conclusion

  • OAuth and OpenID Connect error cases that produce 404 or 500
    HTTP error codes will now return a standard error page with a
    generic message to an end user that says an error occurred
    during authentication. The existing WebSphere Liberty server
    error messages will still be logged in the server logs.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack 18.0.0.1.  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

    PI96273

  • Reported component name

    WAS LIBERTY COR

  • Reported component ID

    5725L2900

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-04-05

  • Closed date

    2018-04-06

  • Last modified date

    2018-04-06

  • 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

    WAS LIBERTY COR

  • Fixed component ID

    5725L2900

Applicable component levels

  • RCD0 PSY

       UP

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU029","label":"Software"},"Product":{"code":"SSD28V","label":"WebSphere Application Server Liberty Core"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0"}]

Document Information

Modified date:
16 June 2021