防范SQL注入攻击的最新办法

Function SafeRequest(ParaName) 
Dim ParaValue 
ParaValue=Request(ParaName)
if IsNumeric(ParaValue) = True then
SafeRequest=ParaValue
exit Function
elseIf Instr(LCase(ParaValue),"select ") > 0 or Instr(LCase(ParaValue),"insert ") > 0 or

Instr(LCase(ParaValue),"delete from") > 0 or Instr(LCase(ParaValue),"count(") > 0 or 

Instr(LCase(ParaValue),"drop table") > 0 or Instr(LCase(ParaValue),"update ") > 0 or

 Instr(LCase(ParaValue),"truncate ") > 0 or Instr(LCase(ParaValue),"asc(") > 0 or Instr

(LCase(ParaValue),"mid(") > 0 or Instr(LCase(ParaValue),"char(") > 0 or Instr(LCase

(ParaValue),"xp_cmdshell") > 0 or Instr(LCase(ParaValue),"exec master") > 0 or Instr

(LCase(ParaValue),"net localgroup administrators") > 0  or Instr(LCase(ParaValue),"

 and ") > 0 or Instr(LCase(ParaValue),"net user") > 0 or Instr(LCase(ParaValue)," or ")

 > 0 then
 Response.Write "<script language=´javascript´>"
 Response.Write "alert(´非法的请求!´);"  ´发现SQL注入攻击提示信息
 Response.Write "location.href=´http://www.wz114.com/´;"  ´发现SQL注入攻击转跳网址
 Response.Write "<script>"
 Response.end
else
SafeRequest=ParaValue
End If
End function

使用SafeRequest函数替换你的Request

可以防范所有的SQL注入攻击，