Pritlog v0.821 CMS - Multiple Web Vulnerabilities



Title:
======
Pritlog v0.821 CMS - Multiple Web Vulnerabilities


Date:
=====
2012-04-29


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=534


VL-ID:
=====
534


Introduction:
=============
PRITLOG is an extremely simple, small (< 500K uncompressed) and powerful blog system. It does not use or need
a MYSQL database and fully works based on Sqlite. Sqlite is very similar to flat files and does not need any
server setup and comes as default with most PHP5 installations. Just drop Pritlog into your server and it
starts running. No separate installation is required.

Feature(s):
* WYSIWYG editor - nicEdit
* Admin interface (change site properties, add authors, change password)\\\\\\\'\\\\\\\'\\\\\\\'
* Easy translation. Language selection available in the admin panel. Language files must be created.
* Sticky Posts
* Integrated login system with registration
* Pretty Urls
* SEO Optimization
* Page functionality for static pages
* Social Bookmarking widget: to enable easy sharing of post/blog
* Bbcode by editing html (work around)
* RSS Feeds
* Additional authors can be added by the admin
* Post Options w/ Teaser + Full Story (using *readmore* in the post)
* Ability to enable / disable comments per post * Global privacy option
* Ajax and jQuery for better user experience
* Post auto-save feature<
* Category cloud
* Theme engine for easy theme creation
* Plugins to easily add functionality


(Copy of the Vendor Homepage: http://pritlog.com/fossil.cgi/taglist )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in Pritlog v0.821 Content Management System.


Report-Timeline:
================
2012-04-29: Public or Non-Public Disclosure


Status:
========
Published


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


Severity:
=========
Medium


Details:
========
Multiple persistent input validation vulnerabilities are detected in the Pritlog v0.821 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. Attackers can inject malicious strings as author name to execute them when an admin is processing to preview, review
or manage the listing of users. The bug is located on application side & the execution is persistent out of the user management web
application context.

Vulnerable Module(s):
[+] Manage User Listing - Username & Author

Picture(s):
../1.png
../2.png


Proof of Concept:
=================
The vulnerability can be exploited by remote attackers with low required user inter action. For demonstration or reproduce ..

URL: http://127.0.0.1:1337/pritlog/index.php/adminPageAuthors

<fieldset>
<legend>Manage Authors</legend>
<table>
<tbody><tr><td><strong>Author: </strong>"><iframe src="a" onload='alert("vl")' <<br=""><br></td>
<td><label for="authorEmail">Email</label><br>
<input type="text" name="authorEmail" id="authorEmail" value="fufu@xxxxxxx"></td></tr>


Risk:
=====
The security risk of the persistent input validation vulnerability is estimated as medium.


Credits:
========
Vulnerability Laboratory [Research Team] - Chokri Ben Achor (meister@xxxxxxxxxxxxxxxxxxxxx)


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. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-
Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of
other media, are reserved by Vulnerability-Lab or its suppliers.

Copyright © 2012 Vulnerability-Lab




--
VULNERABILITY RESEARCH LABORATORY TEAM
Website: www.vulnerability-lab.com
Mail: research@xxxxxxxxxxxxxxxxxxxxx



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