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CGIForum 1.0 Vulnerability

daemon@ATHENA.MIT.EDU (zorgon)
Mon Nov 20 14:22:22 2000

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Message-Id:  <200011201638.eAKGcu530561@tbird.iworld.com>
Date:         Mon, 20 Nov 2000 11:38:56 -0500
Reply-To: zorgon <zorgon@LINUXSTART.COM>
From: zorgon <zorgon@LINUXSTART.COM>
To: BUGTRAQ@SECURITYFOCUS.COM

Hi,

Date: 2000/11/20
Affected Application: CGIForum 1.0
	http://www.marcbrinkmann.de/inandonline/netz/CGIForum-1.0.tar.gz
	Markus Triska
	<triska@gmx.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.



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zorgon <zorgon@linuxstart.com>
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