asp.net 仿SQL注入

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; /// <summary> /// SqlCheck 的摘要说明 /// </summary> /// namespace cofcms { public class SqlCheck { public void CheckSql() { string jk1986_sql = "exec↓select↓drop↓alter↓exists↓union↓and↓or↓xor↓order↓mid↓asc↓execute↓xp_cmdshell↓insert↓update↓delete↓join↓declare↓char↓sp_oacreate↓wscript.shell↓xp_regwrite↓'↓;↓--"; string[] jk_sql = jk1986_sql.Split('↓'); foreach (string jk in jk_sql) { // -----------------------防 Post 注入----------------------- if (System.Web.HttpContext.Current.Request.Form != null) { for (int k = 0; k < System.Web.HttpContext.Current.Request.Form.Count; k++) { string getsqlkey = System.Web.HttpContext.Current.Request.Form.Keys[k]; string getip; if (System.Web.HttpContext.Current.Request.Form[getsqlkey].ToLower().Contains(jk) == true) { System.Web.HttpContext.Current.Response.Write("<script Language=JavaScript>alert('请勿提交非法字符!');</" + "script>"); System.Web.HttpContext.Current.Response.Write("非法操作！系统做了如下记录 ↓" + " "); if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { getip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; } else { getip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } System.Web.HttpContext.Current.Response.Write("操作 I P ：" + getip + " "); System.Web.HttpContext.Current.Response.Write("操作时间：" + DateTime.Now.ToString() + " "); System.Web.HttpContext.Current.Response.Write("操作页面：" + System.Web.HttpContext.Current.Request.ServerVariables["URL"] + " "); System.Web.HttpContext.Current.Response.Write("提交方式：P O S T " + " "); System.Web.HttpContext.Current.Response.Write("提交参数：" + jk + " "); System.Web.HttpContext.Current.Response.Write("提交数据：" + System.Web.HttpContext.Current.Request.Form[getsqlkey].ToLower() + " "); System.Web.HttpContext.Current.Response.End(); } } } // -----------------------防 GET 注入----------------------- if (System.Web.HttpContext.Current.Request.QueryString != null) { for (int k = 0; k < System.Web.HttpContext.Current.Request.QueryString.Count; k++) { string getsqlkey = System.Web.HttpContext.Current.Request.QueryString.Keys[k]; string getip; if (System.Web.HttpContext.Current.Request.QueryString[getsqlkey].ToLower().Contains(jk) == true) { System.Web.HttpContext.Current.Response.Write("<script Language=JavaScript>alert('请勿提交非法字符!');</" + "script>"); System.Web.HttpContext.Current.Response.Write("非法操作！系统做了如下记录 ↓" + " "); if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { getip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; } else { getip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } System.Web.HttpContext.Current.Response.Write("操作 I P ：" + getip + " "); System.Web.HttpContext.Current.Response.Write("操作时间：" + DateTime.Now.ToString() + " "); System.Web.HttpContext.Current.Response.Write("操作页面：" + System.Web.HttpContext.Current.Request.ServerVariables["URL"] + " "); System.Web.HttpContext.Current.Response.Write("提交方式：G E T " + " "); System.Web.HttpContext.Current.Response.Write("提交参数：" + jk + " "); System.Web.HttpContext.Current.Response.Write("提交数据：" + System.Web.HttpContext.Current.Request.QueryString[getsqlkey].ToLower() + " "); System.Web.HttpContext.Current.Response.End(); } } } // -----------------------防 Cookies 注入----------------------- if (System.Web.HttpContext.Current.Request.Cookies != null) { for (int k = 0; k < System.Web.HttpContext.Current.Request.Cookies.Count; k++) { string getsqlkey = System.Web.HttpContext.Current.Request.Cookies.Keys[k]; string getip; if (System.Web.HttpContext.Current.Request.Cookies[getsqlkey].Value.ToLower().Contains(jk) == true) { System.Web.HttpContext.Current.Response.Write("<script Language=JavaScript>alert('请勿提交非法字符!');</" + "script>"); System.Web.HttpContext.Current.Response.Write("非法操作！系统做了如下记录 ↓" + " "); if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) { getip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; } else { getip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } System.Web.HttpContext.Current.Response.Write("操作 I P ：" + getip + " "); System.Web.HttpContext.Current.Response.Write("操作时间：" + DateTime.Now.ToString() + " "); System.Web.HttpContext.Current.Response.Write("操作页面：" + System.Web.HttpContext.Current.Request.ServerVariables["URL"] + " "); System.Web.HttpContext.Current.Response.Write("提交方式： Cookies " + " "); System.Web.HttpContext.Current.Response.Write("提交参数：" + jk + " "); System.Web.HttpContext.Current.Response.Write("提交数据：" + System.Web.HttpContext.Current.Request.Cookies[getsqlkey].Value.ToLower() + " "); System.Web.HttpContext.Current.Response.End(); } } } } } } }