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[FD] CentOS Web Panel v0.9.8.12 - Multiple Persistent Web Vulnerabilities
- To: fulldisclosure@xxxxxxxxxxxx
- Subject: [FD] CentOS Web Panel v0.9.8.12 - Multiple Persistent Web Vulnerabilities
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 19 Jan 2018 21:50:21 +0100
Document Title:
===============
CentOS Web Panel v0.9.8.12 - Multiple Persistent Web Vulnerabilities
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1836
Release Date:
=============
2018-01-19
Vulnerability Laboratory ID (VL-ID):
====================================
1836
Common Vulnerability Scoring System:
====================================
4.4
Vulnerability Class:
====================
Cross Site Scripting - Persistent
Current Estimated Price:
========================
1.000€ - 2.000€
Product & Service Introduction:
===============================
CentOS Web Panel - Free Web Hosting control panel is designed for quick and
easy management of (Dedicated & VPS) servers without of
need to use ssh console for every little thing. There is lot's of options and
features for server management in this control panel.
CWP automatically installs full LAMP on your server (apache,php, phpmyadmin,
webmail, mailserver…).
(Copy of the Homepage: http://centos-webpanel.com/features )
Abstract Advisory Information:
==============================
The vulnerability laboratory core research team discovered multiple persistent
web vulnerabilities in the official CentOS Web Panel v0.9.8.12.
Vulnerability Disclosure Timeline:
==================================
2017-01-19: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
CWP
Product: CentOS Web Panel - (CWP) 0.9.8.12
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
Multiple persistent validation web vulnerabilities has been discovered in the
official CentOS Web Panel v0.9.8.12.
The vulnerability allows remote attackers to inject own malicious script codes
to the application-side of the
affected vulnerable modules.
The vulnerabilities are located in the `id` and `email_address` parameters of
the `index.php` file POST method request.
Remote attackers are able to inject script code to the POST method request to
manipulate the item listing output context.
The request method to inject is POST and the attack vector is persistent on the
application-side. The injection points are
the both add POST method requests and the execution point occurs in the output
location of both modules.
The security risk of the web vulnerabilities are estimated as medium with a
cvss (common vulnerability scoring system) count of 4.4.
Exploitation of the persistent web vulnerabilities requires a low privileged
web-application user account and low user interaction.
Successful exploitation of the vulnerabilities results in session hijacking,
persistent phishing attacks, persistent external redirects
to malicious source and persistent manipulation of affected or connected
application modules.
Request Method(s):
[+] POST
Vulnerable Module(s):
[+] phpini_editor
[+] mail_add-new
Vulnerable File(s):
[+] index.php
Vulnerable Parameter(s):
[+] id
[+] email_address
Proof of Concept (PoC):
=======================
The web vulnerabilities can be exploited by remote attackers with low
privileged user account and low user interaction.
For security demonstration or to reproduce the vulnerability follow the
provided information and steps below to continue.
Dork(s):
"powered by CentOS-WebPanel.com"
--- PoC Session Logs [POST] ---
Status: 200[OK]
POST http://localhost:2030/index.php?module=phpini_editor
Mime Type[text/html]
Request Header:
Host[localhost:2030]
User-Agent[Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101
Firefox/45.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Referer[http://localhost:2030/index.php?module=phpini_editor]
Cookie[cwpsrv-3cc0cea69668d490e1029c2a41ce5df3=8fnvi0bqgjj162mqklruu8clq5;
PHPSESSID=8dsrha0ivd80kkgukvklgvmct1]
Connection[keep-alive]
POST-Daten:
id[%3E%22%3CPAYLOAD INJECTION POINT!+src]
del[]
Response Header:
Server[Apache/2.2.27 (Unix) mod_ssl/2.2.27 OpenSSL/1.0.1e-fips PHP/5.4.27]
X-Powered-By[PHP/5.4.27]
Keep-Alive[timeout=5, max=94]
Connection[Keep-Alive]
Transfer-Encoding[chunked]
Content-Type[text/html]
PoC: POST via Delete function in phpini_editor via Add your custom settings!
input
<div class="row">
<h3>Simple php.ini editor</h3>
File Location: /home/test-dom/public_html/php.ini
<br><br>magic_quotes_gpc=>"<%3E%22%3CPERSISTENT SCRIPT CODE PAYLOAD
EXECUTION!+src>
Removed!<META HTTP-EQUIV='refresh' CONTENT='1'>
</div><!-- End .row -->
</div><!-- End contentwrapper -->
</div><!-- End #content -->
</div><!-- End #wrapper -->
Reference(s):
http://localhost:2030/index.php?module=phpini_editor
--- PoC Session Logs [POST] ---
Status: 200[OK]
POST http://localhost:2030/index.php?module=mail_add-new
Mime Type[text/html]
Request Header:
Host[localhost:2030]
User-Agent[Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101
Firefox/45.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Referer[http://localhost:2030/index.php?module=mail_add-new]
Cookie[cwpsrv-3cc0cea69668d490e1029c2a41ce5df3=8fnvi0bqgjj162mqklruu8clq5;
PHPSESSID=8dsrha0ivd80kkgukvklgvmct1]
Connection[keep-alive]
POST-Daten:
ifpost[yes]
email_address[%3E%22%3CPAYLOAD INJECTION POINT!+src]
domain[test-domain.com]
password[%3E%22%3CPAYLOAD INJECTION POINT!+src]
Response Header:
Server[Apache/2.2.27 (Unix) mod_ssl/2.2.27 OpenSSL/1.0.1e-fips PHP/5.4.27]
X-Powered-By[PHP/5.4.27]
Keep-Alive[timeout=5, max=100]
Connection[Keep-Alive]
Transfer-Encoding[chunked]
Content-Type[text/html]
PoC: POST via add Mailbox in email input
<div class="row">
<br>Email domain <b>test-domain.com</b> created.
<br>Mailbox <b>a>"<%3E%22%3CPERSISTENT SCRIPT CODE PAYLOAD
EXECUTION!+src>@test-domain.com</b> created.
<br><h3>Create a New Email Account or Forwarder (MailBox/Forwarder)</h3>
Here you can create a new email account or forwarder.
<br><br>
<div class='row'>
<div class='col-lg-8'>
<div class='panel panel-default chart gradient'>
<div class='panel-heading'>
<h4><span class='icon16 icomoon-icon-bars'></span>
<span>Create a New Email Account
(MailBox)</span>
</h4>
<a href='#' class='minimize'>Minimize</a>
</div>
<div class='panel-body' style='padding-bottom:0;'>
<form action='' method= 'post'>
<input type='hidden' name='ifpost' size='0' value='yes'>
<table><tr><td>
Reference(s):
http://localhost:2030/index.php?module=mail_add-new
Solution - Fix & Patch:
=======================
The vulnerabilities can be patched by a sanitize in the vulnerable `id` and
`email address` parameters of the index.php file POST method request.
Disallow usage of special chars and restrict the parameter input to prevent
script code injection attacks. Filter in the output error location
or the item listing the vulnerable location were the code point occurs.
Security Risk:
==============
The security risk of the application-side input validation vulnerabilities in
the web-application are estimated as medium. (CVSS 4.4)
Credits & Authors:
==================
Benjamin K.M. [bkm@xxxxxxxxxxxxxxxxxxxxx] -
https://www.vulnerability-lab.com/show.php?user=Benjamin+K.M.
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=========================
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