Function SafeRequest(ParaName,ParaType)
'--- 传入参数 ---
'ParaName:参数名称-字符型
'ParaType:参数类型-数字型(1表示以上参数是数字,0表示以上参数为字符)
Dim ParaValue
ParaValue=Request(ParaName)
If ParaType=1 then
If not isNumeric(ParaValue) then
Response.write "<script>alert('靠!你想干什么???');window.location.href='/index.asp'</script>"
Response.end
End if
Else
ParaValue=replace(ParaValue,"'","''")
End if
SafeRequest=ParaValue
End function
NO.2
Sub ChkRequest()
Dim k,str,Rtype
Rtype=Request.ServerVariables("REQUEST_METHOD")
If Rtype="GET" Then
for each k in request.querystring
str=request.item(k)
if instr(str,"'")<>0 or instr(str,";")<>0 or instr(str,"#")<>0 or instr(str,"%")<>0 or instr(str,"<")<>0 or instr(str,">")<>0 or instr(str,"=")<>0 or instr(str,",")<>0 or instr(str,")")<>0 or instr(str,"(")<>0 then
Response.Write("<script language=""javascript"">alert('"&replace(str,"'","")&"中含有特殊字符!');location='javascript:history.back()';</script>")
Response.End()
End If
Next
End If
end sub
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 "<Script Language=JavaScript>alert('传参错误!参数 "&name&" 的值中包含非法字符串!\n\n请不要在参数中出现:and update delete ; insert mid master 等非法字符!');location.href='"&Err_Web&"';</Script>"
Case "2"
Response.Write "<Script Language=JavaScript>location.href='"&Err_Web&"'</Script>"
Case "3"
Response.Write "<Script Language=JavaScript>alert('传参错误!参数 "&name&"的值中包含非法字符串!\n\n请不要在参数中出现:and update delete ; insert mid master 等非法字符!');location.href='"&Err_Web&"';</Script>"
End Select
Response.End
End If
NEXT
NEXT
End if
'-----对 post 表 单值的过滤.
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 "<Script Language=JavaScript>alert('出错了!表单 "&name&" 的值中包含非法字符串!\n\n请不要在表单中出现: % & * # ( ) 等非法字符!');location.href='"&Err_Web&"';</Script>"
Case "2"
Response.Write "<Script Language=JavaScript>location.href='"&Err_Web&"'</Script>"
Case "3"
Response.Write "<Script Language=JavaScript>alert('出错了!参数 "&name&"的值中包含非法字符串!\n\n请不要在表单中出现: % & * # ( ) 等非法字符!');location.href='"&Err_Web&"';</Script>"
End Select
Response.End
End If
NEXT
NEXT
end if
%>
NO.5
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.hubu.edu.cn';" '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函数替换掉Request
先定义一个CheckString函数 你可以保存到一个ASP文件中也可以直接放在当前页
function CheckString(Message)
Message = Replace(Message, Chr(0), "")
CheckString = Replace(Message,"'","''")'在这里定义需要屏蔽的字符
end function
function checkStr(str)
if isnull(str) then
checkStr = ""
exit function
end if
str = Replace(str, Chr(0), "")
checkStr=replace(str,"'","''")
end function
这段代码用在什么位置啊?
不会用啊。帮帮小妹吧。
function checkStr(str)
if isnull(str) then
checkStr = ""
exit function
end if
str = Replace(str, Chr(0), "")
checkStr=replace(str,"'","''")
end function
var re=/^\?(.*)(select |insert |delete from |count\(|drop table|update truncate |asc\(|mid\(|char\(|xp_cmdshell|exec master|net localgroup administrators|\"|:|net user|\'| or )(.*)$/gi;
var e = re.test(url);
if(e) {
alert("地址中含有非法字符~");
location.href="error.asp";
}
//-->
<script>
[CODE END]
asp版的防范SQL注入式攻击代码~:
[CODE START]
<%
On Error Resume Next
Dim strTemp
If LCase(Request.ServerVariables("HTTPS")) = "off" Then
If Trim(Request.QueryString) <> "" Then strTemp = strTemp & "?" & Trim(Request.QueryString)
strTemp = LCase(strTemp)
If Instr(strTemp,"select ") or Instr(strTemp,"insert ") or Instr(strTemp,"delete from") or Instr(strTemp,"count(") or Instr(strTemp,"drop table") or Instr(strTemp,"update ") or Instr(strTemp,"truncate ") or Instr(strTemp,"asc(") or Instr(strTemp,"mid(") or Instr(strTemp,"char(") or Instr(strTemp,"xp_cmdshell") or Instr(strTemp,"exec master") or Instr(strTemp,"net localgroup administrators") or Instr(strTemp,":") or Instr(strTemp,"net user") or Instr(strTemp,"'") or Instr(strTemp," or ") then