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Internet Explorer Global Variables Local File Detection Weakness
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Secunia Advisory:
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SA13872
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Release Date:
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2005-01-18
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Popularity:
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41,713 views
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Critical:
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Not critical
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Impact:
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Exposure of system information
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 5.5
Microsoft Internet Explorer 6.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Berend-Jan Wever has discovered a weakness in Internet Explorer, which can be exploited by malicious people to detect the presence of local files.
The problem is that sites from the "Internet" zone can include scripts from local resources. This can be exploited to determine the presence of local scripts by checking the existence of global variables introduced in the included script.
NOTE: This is similar to an old issue, which used the window.onerror event to catch errors in the loading of local scripts.
The weakness has been confirmed on a fully patched system with Internet Explorer 6.0 and Microsoft Windows XP SP2.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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