ASP网站漏洞如何查找,如何知道ASP代码有漏洞

<% ''--------定义部份------------------
Dim Fy_Post,Fy_Get,Fy_In,Fy_Inf,Fy_Xh,Fy_db,Fy_dbstr
''自定义需要过滤的字串,用 "防" 分隔
Fy_In = "''防;防and防exec防insert防select防delete防update防count防*防%防chr防mid防master防truncate防char防declare防<防>防=防|防-防_"
Fy_Inf = split(Fy_In,"防")
If Request.Form<>"" Then
For Each Fy_Post In Request.Form

For Fy_Xh=0 To Ubound(Fy_Inf)
If Instr(LCase(Request.Form(Fy_Post)),Fy_Inf(Fy_Xh))<>0 Then
Response.Write "非法操作！本站已经给大侠您做了如下记录↓<br>"
Response.Write "操作ＩＰ："&Request.ServerVariables("REMOTE_ADDR")&"<br>"
Response.Write "操作时间："&Now&"<br>"
Response.Write "操作页面："&Request.ServerVariables("URL")&"<br>"
Response.Write "提交方式：ＰＯＳＴ<br>"
Response.Write "提交参数："&Fy_Post&"<br>"
Response.Write "提交数据："&Request.Form(Fy_Post)
Response.End
End If
Next
Next
End If
If Request.QueryString<>"" Then
For Each Fy_Get In Request.QueryString
For Fy_Xh=0 To Ubound(Fy_Inf)
If Instr(LCase(Request.QueryString(Fy_Get)),Fy_Inf(Fy_Xh))<>0 Then
Response.Write "非法操作！本站已经给大侠您做了如下记录↓<br>"
Response.Write "操作ＩＰ："&Request.ServerVariables("REMOTE_ADDR")&"<br>"
Response.Write "操作时间："&Now&"<br>"
Response.Write "操作页面："&Request.ServerVariables("URL")&"<br>"
Response.Write "提交方式：ＧＥＴ<br>"
Response.Write "提交参数："&Fy_Get&"<br>"
Response.Write "提交数据："&Request.QueryString(Fy_Get)
Response.End
End If
Next
Next
End If
%>