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A Web Application Example

A Web Application Example. SQL Injection!. <%@ LANGUAGE="VBSCRIPT" %> <% Dim oCONv, oRSu Set oCONv = Server.CreateObject("ADODB.Connection") oCONv.Open "DRIVER={SQLServer};SERVER=aeneas;UID=sa;PWD=;DATABASE=paper"

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A Web Application Example

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  1. A Web Application Example

  2. SQL Injection! <%@ LANGUAGE="VBSCRIPT" %> <% Dim oCONv, oRSu Set oCONv = Server.CreateObject("ADODB.Connection") oCONv.Open "DRIVER={SQLServer};SERVER=aeneas;UID=sa;PWD=;DATABASE=paper" Set oRSu = oCONv.Execute("SELECT * FROM tblUsers WHERE username = '" & Request.Querystring("UserID") & "' AND password = '" & Request.Querystring("Password") & "'") if not oRSu.EOF then Session("UserID") = oRSu ("username") Response.Redirect "loginsucceeded.asp" else Response.Redirect "loginfailed.asp" end if %>

  3. SELECT * FROM tblUsers WHERE username = 'foo' AND password = 'bar' http://server/login.asp?userid='%20or%201=1-- SELECT * FROM tblUsers WHERE username = '' or 1=1--

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