OSEC

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Subject: CGIForum 1.0 Vulnerability
From: zorgon (zorgonLINUXSTART.COM)
Date: Mon Nov 20 2000 - 10:38:56 CST


Hi,

Date: 2000/11/20
Affected Application: CGIForum 1.0
        http://www.marcbrinkmann.de/inandonline/netz/CGIForum-1.0.tar.gz
        Markus Triska
        <triskagmx.at>

CGIForum is a free forum. We can set 'thesection' parameter to view
files on the vulnerable system with privileges of the user "nobody".

This is caused from OutputHTMLFile function in cgiforum.pl script where $section (= $thesection ) isn't checked (never besides in this script).

e.g.:
http://127.0.0.1/cgi-bin/cgiforum.pl?thesection=../../../../../../etc/passwd%00

The author is informed.

==================================
zorgon <zorgonlinuxstart.com>
http://www.nightbird.free.fr
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