Document Title:
===============
Pluck 4.7.3 - (Delete File) CSRF Web Vulnerability
References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=1980
Release Date:
=============
2016-10-16
Vulnerability Laboratory ID (VL-ID):
====================================
1980
Common Vulnerability Scoring System:
====================================
3.2
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/ )
Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a client-side cross site request forgery vulnerability in the Pluck v4.7.3 CMS.
Vulnerability Disclosure Timeline:
==================================
2016-10-17: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Low
Technical Details & Description:
================================
A cross site request forgery web vulnerability has been discovered in the official Pluck v4.7.3 content management system.
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 arbitrary codes against administrator accounts 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 via panel module.
The security risk of the csrf vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 3.2.
Exploitation of the client-side vulnerability requires no privileged web-application user account and only low user interaction.
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
Delete Pages CSRF
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=
Security Risk:
==============
The security risk of the cross site request forgery web vulnerability in the pluck cms is estimated as medium. (CVSS 3.2)
Credits & Authors:
==================
ZwX - (http://zwx.fr/) )[http://www.vulnerability-lab.com/show.php?user=ZwX]
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=========================
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