QuickBlog CMS 0.8 SQL Injection / Cross Site Scripting

2012-06-14T00:00:00
ID PACKETSTORM:113665
Type packetstorm
Reporter snup
Modified 2012-06-14T00:00:00

Description

                                        
                                            `Title:  
======  
QuickBlog v0.8 CMS - Multiple Web Vulnerabilities  
  
  
Date:  
=====  
2012-05-12  
  
  
References:  
===========  
http://www.vulnerability-lab.com/get_content.php?id=567  
  
  
VL-ID:  
=====  
567  
  
  
Common Vulnerability Scoring System:  
====================================  
6.5  
  
  
Introduction:  
=============  
QuickBlog est un gestionnaire de weblog ecrit en PHP4 compatible PHP5 et MySQL compatible MySQLi multi utilisateur multi   
langue multi theme Il est tres simple et tres lege Il utilise un editeur WYSIWYG TinyMCE avec possibilite d annexe   
  
(Copy of the Vendor Homepage: http://www.comscripts.com/scripts/php.quickblog.2256.html )  
  
  
Abstract:  
=========  
The Vulnerability Laboratory Research Team discovered Multiple Web Vulnerabilities in QuickBlog v0.8 CMS.  
  
  
Report-Timeline:  
================  
2012-05-12: Public or Non-Public Disclosure  
  
  
Status:  
========  
Published  
  
  
Exploitation-Technique:  
=======================  
Remote  
  
  
Severity:  
=========  
High  
  
  
Details:  
========  
1.1  
Multiple remote SQL Injection vulnerabilities are detected in the QuickBlog v0.8 Content Management System.   
The vulnerability allows an attacker (remote) or local low privileged user account to inject/execute own   
sql commands on the affected application dbms. The vulnerabilities are located on the application post   
requests of gestionpost or fct_affiche.inc & the bound vulnerable parameter page. Successful exploitation   
of the vulnerability results in dbms & application compromise.  
  
Vulnerable File(s):   
[+] admin/gestionpost.php  
[+] include/fct_affiche.inc.php  
  
Vulnerable Parameter(s):  
[+] page  
  
  
1.2  
Multiple persistent input validation vulnerabilities are detected in the QuickBlog v0.8 Content Management System.  
The bugs allow remote attackers to implement/inject malicious script code on the application side (persistent).   
Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent)   
context manipulation. Exploitation requires low user inter action & a privileged user account.   
  
Vulnerable File(s):   
[+] recherche.php  
[+] commentaire/form.php  
[+] admin/samplemodifieddata.php  
[+] admin/sampleposteddata.php  
  
Vulnerable Parameter(s):  
[+] name  
[+] title  
[+] nom & search  
  
  
Proof of Concept:  
=================  
1.1  
The sql injection vulnerabilities can be exploited by remote attackers with privileged user account or with medium   
required user inter action. For demonstration or reproduce ...  
  
PoC:  
http://127.0.0.1:8080/quickblog/admin/gestionpost.php?page=[SQL-INJECTION]  
  
  
1.2  
The persistent input validation vulnerabilities can be exploited by remote attackers with low privileged user account   
& low required user inter action. For demonstration or reproduce ...  
  
Review: recherche.php  
  
<form action="http://127.0.0.1/quickblog/recherche.php" method="post">  
<input type="hidden" name="search" value="[PERSISTENT SCRIPT CODE!]" />  
<input type="submit" value="[BUG]"/>  
</form>  
  
Review: commentaire/form.php  
  
<form method="post" action="http://127.0.0.1:8080/quickblog/commentaire/form.php" name="form_mess"/>  
<input type="hidden" name="ajout" value="true"/>  
<input type="hidden" name="idpost" value="1"/>  
<input type="hidden" name="nom" value="[PERSISTENT SCRIPT CODE!]"/>  
<input type="hidden" name="mail" value="asd@asd.asd"/>  
<input type="hidden" name="msg" value="12345"/>  
<img src="http://127.0.0.1:8080/quickblog/commentaire/captcha/captcha.php" alt="captcha"/>   
<br>To validate your comment, please enter code below.<br>   
<input type="text" name="captcha" size="20" class="com" />  
<br>  
<input type="submit" value="[PERSISTENT SCRIPT CODE!]" >  
</form>  
  
  
Solution:  
=========  
In file: admin/gestionpost.php  
In lines 85 - 89:  
  
if(isset($_GET[`page`]))  
{  
$page = $_GET[`page`];  
$page = $page - 1;  
}  
  
edit:  
  
if(isset($_GET[`page`]))  
{  
$page = (int)$_GET[`page`];  
}  
  
In file: include/fct_affiche.inc.php  
In lines 56 - 59:  
  
if(isset($_GET[`page`]))  
{  
$page = $_GET[`page`];  
$page = $page - 1;  
}  
  
edit:  
  
if(isset($_GET[`page`]))  
{  
$page = (int)$_GET[`page`];  
}  
  
In file: recherche.php  
In lines 52 - 55:  
  
if (isset($_POST[``search``]))  
{  
$mot = $_POST[``search``];  
}  
  
edit:  
  
if (isset($_POST[``search``]))  
{  
$mot = htmlspecialchars(strip_tags($_POST[``search``]));  
}  
  
In file: commentaire/form.php  
In lines 41:  
  
$nom=$_POST[``nom``];  
  
edit:  
  
$nom= htmlspecialchars(strip_tags($_POST[``nom``]));  
  
In file: admin/samplemodifieddata.php  
In lines 47:  
  
$titre = $_POST[``title``];  
  
edit:  
  
$titre = htmlspecialchars(strip_tags($_POST[``title``]));  
  
In file: admin/sampleposteddata.php  
In lines 38:  
  
$titre = $_POST[``title``];  
  
edit:  
  
$titre = htmlspecialchars(strip_tags($_POST[``title``]));  
  
  
... & 2x   
  
if(isset($_GET[`page`]))  
{  
$page = (int)$_GET[`page`];  
if($page<0) $page = 0;  
}  
  
  
Risk:  
=====  
1.1  
The security risk of the sql injection vulnerabilities are estimated as high(-).  
  
1.2   
The security risk of the persistent input validation vulnerabilities are estimated as medium(+).  
  
  
Credits:  
========  
Vulnerability Laboratory [Research Team] - snup (snup@vulnerability-lab.com)  
  
  
  
Disclaimer:  
===========  
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either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-  
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states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation   
may not apply.   
  
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Copyright © 2012 Vulnerability-Lab  
  
  
  
  
--   
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Website: www.vulnerability-lab.com  
Mail: research@vulnerability-lab.com  
  
`