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BananaDance Wiki b2.2 - Multiple Web Vulnerabilities

Title:
======
BananaDance Wiki b2.2 - Multiple Web Vulnerabilities


Date:
=====
2012-11-10


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=745


VL-ID:
=====
745


Common Vulnerability Scoring System:
====================================
7.1


Introduction:
=============
Banana Dance is an open-source PHP/MySQL-based program. It is designed to 
combine the simplicity of wiki-publishing 
software with the versatility of a CMS. The program also promotes 
community-building through organized and 
user-rated commenting features. Highly flexible with theme-integration and 
extension availability Banana Dance 
can be used for all types of purposes, whether it be to create an entire 
website, a product owner`s manual, or 
an `article`-posting site.

(Copy of the Vendor Homepage: http://www.bananadance.org )


Abstract:
=========
The vulnerability Laboratory Research Team discovered multiple web 
vulnerabilities in the official BananaDance Wiki b2.2 CMS.


Report-Timeline:
================
2012-11-10:     Public or Non-Public Disclosure


Status:
========
Published


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


Severity:
=========
High


Details:
========
1.1
A SQL Injection vulnerability is detected in the BananaDance Wiki B2.2 Content 
Management System.
The vulnerability allows an attacker (remote) or local privileged 
moderator/admin user account to execute own 
SQL commands on the affected application dbms. The sql injection vulnerability 
is located in user management module 
with the bound vulnerable alpha listing parameter. Successful exploitation of 
the vulnerability results in dbms & 
application compromise. Exploitation requires no user interaction & without 
privileged user account.

Vulnerable Module(s):
                                [+] User Management

Vulnerable Parameter(s):
                                [+] alpha


1.2
Multiple persistent input validation vulnerabilities are detected in the 
BananaDance Wiki B2.2 Content Management System. 
The bugs allow remote attackers to implement/inject malicious script code on 
the application side (persistent) of the vulnerable module. 
The persistent vulnerabilities are located in the user, banned user, badge 
module listing with the bound vulnerable username and email parameters. 
Successful exploitation of the vulnerability can lead to session hijacking 
(manager/admin) or stable (persistent) context manipulation. 
Exploitation requires low user inter action (view listing) & a registered low 
privileged web application user account.

Vulnerable Module(s):
                                [+] Add User - Listing
                                [+] Banned User - Listing
                                [+] Badges - Listing

Vulnerable Parameter(s):
                                [+] Username & Email (Profil)


Proof of Concept:
=================
1.1
The sql injection vulnerability can be exploited by local privileged user 
accounts and moderators.
For demonstration or reproduce ...

PoC:
<html>
<head><body>
<title>BananaDance Wiki b2.2 - SQL Vulnerability</title>
<iframe 
src=http://bananadance-wiki.127.0.0.1:1339/admin/index.php?l=users&alpha=A'-1 
[SQL-INJECTION!]-- width="1000" height="800">
<iframe 
src=http://bananadance-wiki.127.0.0.1:1339/admin/index.php?l=users&alpha=M'-1 
[SQL-INJECTION!]-- width="1000" height="800">
<iframe 
src=http://bananadance-wiki.127.0.0.1:1339/admin/index.php?l=users&alpha=K'-1 
[SQL-INJECTION!]-- width="1000" height="800">
</body></head>
<html>


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

Review: Add (Existing) User - Listing

<tr id="19">
<td valign="top"><center><img src="imgs/status-on.png" id="status19" 
alt="Active" title="Active" border="0" height="16" width="16"></center></td>
<td valign="top"><a href="index.php?l=users_edit&id=19">"><[PERSISTENT 
EXECUTION OF INJECTED SCRIPT CODE!];)" <<="" a=""></td>
<td valign="top">2012-06-20</td>
<td valign="top"><span style="">ESTANDAR</span></td>
<td valign="top">0</td>
<td valign="top">0</td>
<td valign="top">0</td>
<td valign="top"><a href="#" onClick="deleteID('bd_users','19');return false;">
<img src="imgs/icon-delete.png" border="0" alt="Delete" title="Delete" 
/></a></td>
</tr>

URL(s): 
http://bananadance-wiki.127.0.0.1:1339/admin/index.php?l=users > 
http://bananadance-wiki.127.0.0.1:1339/admin/index.php?l=users_add


Risk:
=====
1.1
The security risk of the local sql injection vulnerability is estimated as 
medium(+) because of the required moderator account.

1.2
The security risk of the persistent input validation vulnerabilities are 
estimated as high.


Credits:
========
Vulnerability Laboratory [Research Team]  - Kathrin SL 
(katha@xxxxxxxxxxxxxxxxxxxxx)


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===========
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