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Mozilla / Mozilla Firefox Dialog Overlapping Weakness
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Secunia Advisory:
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SA13786
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Release Date:
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2005-01-12
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Last Update:
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2005-03-22
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Popularity:
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28,378 views
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Critical:
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Not critical
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Impact:
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Spoofing
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Mozilla 0.x
Mozilla 1.0
Mozilla 1.1
Mozilla 1.2
Mozilla 1.3
Mozilla 1.4
Mozilla 1.5
Mozilla 1.6
Mozilla 1.7.x
Mozilla Firefox 0.x
Mozilla Firefox 1.x
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Description:
mikx has discovered a weakness in Mozilla and Mozilla Firefox, which potentially can be exploited by malicious people to trick users into performing unintended actions.
The problem is that popup windows can overlay modal dialogs. This can e.g. be exploited by a malicious web site to hide the information text in a download or security dialog in order to trick a user into accepting it.
Exploitation is more or less convincing depending on the used Windows desktop theme.
The weakness has been confirmed on Mozilla Firefox 1.0 and Mozilla 1.7.5 for Windows.
Solution:
Mozilla Firefox:
Update to version 1.0.1.
http://www.mozilla.org/products/firefox/
Mozilla:
Update to version 1.7.6.
http://www.mozilla.org/products/mozilla1.x/
Do not take positive actions on dialogs from untrusted sources.
Provided and/or discovered by:
mikx
Changelog:
2005-02-25: Weakness fixed in Mozilla Firefox 1.0.1. Updated "Solution" section.
2005-03-22: Mozilla 1.7.6 released. Updated "Solution" section.
Original Advisory:
http://www.mikx.de/?p=7
Other References:
Bugzilla reference:
https://bugzilla.mozilla.org/show_bug.cgi?id=260560
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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