[NEWS] Cross Site Scripting in Mozilla Firefox

From: SecuriTeam (support_at_securiteam.com)
Date: 03/17/05

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Date: 17 Mar 2005 10:29:54 +0200

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      Cross Site Scripting in Mozilla Firefox
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.mozilla.org/> Firefox is "a fast, full-featured browser that
    makes browsing more efficient than ever before .

    Firefox contains a security vulnerability in the way how it handles
    cross-domain image dragging, allowing a remote attacker to cause it to
    execute arbitrary JavaScript.

    DETAILS

    Vulnerable Systems:
     * Mozilla Firefox version 1.0.1
     * Mozilla Firefox version 1.0

    Dragging an image into the address bar will cause Firefox to navigate to
    the image URL even if it is a JavaScript URL and the page to be navigated
    from is in a different domain than the page on which the image is shown.
    This may potentially allow attackers to preform a cross site scripting
    attack.

    Proof of Concept:
    <img src="javascript:alert(location.href)">

    A working example of the problem can be located at
    <http://greyhatsecurity.org/vulntests/firefox.htm>
    http://greyhatsecurity.org/vulntests/firefox.htm.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:paul@greyhats.cjb.net> Paul.

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