方法1: Replace过滤字符

解决方法:查找login.asp下的<from找到下边的类似username=request.Form(”name”)

pass=request.Form(”pass”)
修改为:username=Replace(request.Form(”name”), “’”, “’’”)

pass=Replace(request.Form(”pass”), “’”, “’’”)
语法是屏蔽’和’’字符来达到效果.

方法2:在conn.asp 内加入
注前提 登陆页面有)
把以下代码保存为safe.asp

程序代码

<%

Dim Query_Badword,Form_Badword,i,Err_Message,Err_Web,name

Err_Message = 3

Err_Web = “safe.htm”

’出错时转向的页面

Query_Badword=”’|and|select|update|chr|delete|%20from|;|insert|mid|master.|set|chr(37)|=”

’在这部份定义get非法参数,使用”|”号间隔

Form_Badword=”’|(|)|;|=”

’在这部份定义post非法参数,使用”|”号间隔

On Error Resume Next

if request.QueryString”" then

Chk_badword=split(Query_Badword,”|”)

FOR EACH Query_Name IN Request.QueryString

for i=0 to ubound(Chk_badword)

If Instr(LCase(request.QueryString(Query_Name)),Chk_badword(i))0 Then

Select Case Err_Message

Case “1″

Response.Write “alert(’传参错误!参数 “&name&” 的值中包含非法字符串! 请不要在参数中出现:and update delete ; insert mid master 等非法字符!’);window.close();”

Case “2″

Response.Write “location.href=’”&Err_Web&”’”

Case “3″

Response.Write “alert(’传参错误!参数 “&name&”的值中包含非法字符串! 请不要在参数中出现:and update delete ; insert mid master 等非法字符!’);location.href=’”&Err_Web&”’;”

End Select

Response.End

End If

NEXT

NEXT

End if

if request.form”" then

Chk_badword=split(Form_Badword,”|”)

FOR EACH name IN Request.Form

for i=0 to ubound(Chk_badword)

If Instr(LCase(request.form(name)),Chk_badword(i))0 Then

Select Case Err_Message

Case “1″

Response.Write “alert(’出错了!表单 “&name&” 的值中包含非法字符串! 你的非法操作已记录,请马上停止非法行为!’);window.close();”

Case “2″

Response.Write “location.href=’”&Err_Web&”’”

Case “3″

Response.Write “alert(’出错了!参数 “&name&”的值中包含非法字符串! 谢谢您光临!,请停止非法行为!’);location.href=’”&Err_Web&”’;”

End Select

Response.End

End If

NEXT

NEXT

end if

%>