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FirstClass Client File Extensions Restriction Bypass
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Secunia Advisory:
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SA10764
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Release Date:
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2004-02-05
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Popularity:
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6,892 views
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Critical:
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Moderately critical
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Impact:
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System access
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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: | FirstClass Client 7.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:
Richard Maudsley has reported a vulnerability in FirstClass Client allowing malicious users to construct filenames, which can bypass certain restrictions.
Filenames on a FirstClass system can contain characters, which are invalid on the Windows platform (and other operating systems). These characters are stripped from the filename after the extension has been verified against the rule set.
This can be exploited to bypass administrative restrictions and potentially allow automatic execution of ".exe" files.
The vulnerability has been reported in version 7.1 on the Windows platform.
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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