????????????? http://www.cnblogs.com/shanyou/archive/2010/09/24/1833757.html  ?????
????http://weblogs.asp.net/scottgu/important-asp-net-security-vulnerability   ????
?????????.??????y??
????.net 3.5 ??????汾????????y??
????<customErrors mode="On" defaultRedirect="~/error.html" />
????.net 3.5 SP1 ?? .net 4.0??????????y?????????????
????<customErrors mode="On" defaultRedirect="~/error.aspx" redirectMode="ResponseRewrite" />
?????????.????????????
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Security.Cryptography" %>
<%@ Import Namespace="System.Threading" %>
<script runat="server">
void Page_Load() {
byte[] delay = new byte[1];
RandomNumberGenerator prng = new RNGCryptoServiceProvider();
prng.GetBytes(delay);
Thread.Sleep((int)delay[0]);
IDisposable disposable = prng as IDisposable;
if (disposable != null) { disposable.Dispose(); }
}
</script>
<html>
<head runat="server">
<title>Error</title>
</head>
<body>
<div>
An error occurred while processing your request.
</div>
</body>
</html>
?????????и?????????? ??лл????