sql注入攻击特效药

来源：互联网发布：双11实时数据直播视频编辑：程序博客网时间：2024/06/05 06:10

在Global.asax文件中加入如下方法即可：

#region SQL注入式攻击代码分析
/// <summary>
/// 处理用户提交的请求
/// </summary>
private void StartProcessRequest()
{
try
{
string getkeys = "";

if (System.Web.HttpContext.Current.Request.QueryString != null)
{

for (int i = 0; i < System.Web.HttpContext.Current.Request.QueryString.Count; i++)
{
getkeys = System.Web.HttpContext.Current.Request.QueryString.Keys[i];
if (!ProcessSqlStr(System.Web.HttpContext.Current.Request.QueryString[getkeys]))
{
System.Web.HttpContext.Current.Response.Write(" <h3>不能包含执行语句 </h3>");
System.Web.HttpContext.Current.Response.End();
}
}
}
if (System.Web.HttpContext.Current.Request.Form != null)
{
for (int i = 0; i < System.Web.HttpContext.Current.Request.Form.Count; i++)
{
getkeys = System.Web.HttpContext.Current.Request.Form.Keys[i];
if (getkeys == "__VIEWSTATE") continue;
if (!ProcessSqlStr(System.Web.HttpContext.Current.Request.Form[getkeys]))
{
jcFAQApp.FAQ_Util.Log.WriteMessage(" <font color:red>注入攻击 </red>", System.Web.HttpContext.Current.Request.UserHostAddress.ToString());
System.Web.HttpContext.Current.Response.Write(" <h3>不能包含执行语句 </h3>");
System.Web.HttpContext.Current.Response.End();
}
}
}
}
catch
{

}
}
/// <summary>
/// 分析用户请求是否正常
/// </summary>
/// <param name="Str">传入用户提交数据 </param>
/// <returns>返回是否含有SQL注入式攻击代码 </returns>
private bool ProcessSqlStr(string Str)
{
bool ReturnValue = true;
try
{
if (Str.Trim() != "")
{
//string SqlStr = "and ¦exec ¦insert ¦select ¦delete ¦update ¦count ¦* ¦chr ¦mid ¦master ¦truncate ¦char ¦declare";
string SqlStr = "exec ¦insert ¦select ¦delete ¦update ¦mid ¦master ¦truncate ¦declare";
string[] anySqlStr = SqlStr.Split('¦');
foreach (string ss in anySqlStr)
{
if (Str.ToLower().IndexOf(ss) >= 0)
{
ReturnValue = false;
break;
}
}
}
}
catch
{
ReturnValue = false;
}
return ReturnValue;
}
#endregion