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From: Peter Gründl (pgrundl_at_kpmg.dk)
Date: Wed Jul 17 2002 - 04:27:11 CDT

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    Title: Jigsaw Webserver Path Disclosure

    BUG-ID: 2002031
    Released: 17th Jul 2002

    It is possible to disclose the physical path to the webroot. This
    information could be useful to a malicious user wishing to gain
    illegal access to resources on the server.

    - Jigsaw V2.2.1 Distribution on Windows 2000 Server

    Not Vulnerable:
    - Jigsaw V2.2.1 Dev/2.2/20020711 on Windows 2000 Server

    Product Description:
    Quoted from the vendor webpage:

    "Jigsaw is W3C's leading-edge Web server platform, providing a sample
     HTTP 1.1 implementation and a variety of other features on top of an
     advanced architecture implemented in Java. The W3C Jigsaw Activity
     statement explains the motivation and future plans in more detail.
     Jigsaw is an W3C Open Source Project, started May 1996."

    Requesting /aux two times, results in an error message, after second
    request, containing the physical path to the web root.

    Vendor URL:
    You can visit the vendor webpage here: http://www.w3.org

    Vendor response:
    The vendor was notified on the 27th of May, 2002. On the 11th of
    July, 2002 we verified that the issue was corrected in the latest
    build (20020708).

    Corrective action:
    Upgrade your Jigsaw.jar to the latest build, available from:

    Author: Peter Gründl (pgrundlkpmg.dk)

    KPMG is not responsible for the misuse of the information we provide
    through our security advisories. These advisories are a service to
    the professional security community. In no event shall KPMG be lia-
    ble for any consequences whatsoever arising out of or in connection
    with the use or spread of this information.