入门:防范SQL注入攻击的新办法

80酷酷网    80kuku.com

  

  近段时间由于修改一个ASP程序(有SQL注入漏洞),在网上找了很多相关的一些防范办法,都不近人意,所以我将现在网上的一些方法综合改良了一下,写出这个ASP函数,供大家参考。

以下是引用片段:

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),"") > 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://blog.knowsky.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

  请作者联系本站,及时附注您的姓名。联系邮箱:edu#chinaz.com(把#改为)。

分享到
  • 微信分享
  • 新浪微博
  • QQ好友
  • QQ空间
点击: