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Can a stored procedure like this be SQL injected? ASP VBScript

Posted on 2008-06-25
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Last Modified: 2010-04-21
Can anyone tell me if my stored procedure can be hit by SQL injection.  Here is one example:

On the database:
ALTER PROCEDURE [dbo].[usp_ValidateLogin]
      -- Add the parameters for the stored procedure here
      @shipper nvarchar(10),
      @password nvarchar(800),
      @email nvarchar(800) OUTPUT
AS
BEGIN
      
      DECLARE @isFirstLogin Int  --Return Value
      SET @isFirstLogin = -1
      
      -- SET NOCOUNT ON added to prevent extra result sets from
      -- interfering with SELECT statements.
      SET NOCOUNT ON;

    SELECT
            @isFirstLogin = isFirstLogin,
            @email = email
      FROM tbl_Registered_Users
      WHERE shipper = @shipper AND Password = @password
      
      RETURN @isFirstLogin

END


And here's how its being called via ASP.
      set cmdLogin = Server.CreateObject("ADODB.Command")
      With cmdLogin
            .ActiveConnection = dbConnLogin
            .CommandText = "usp_ValidateLogin"
            .CommandType = adCmdStoredProc
            .Parameters.Append .CreateParameter("RETURN_VALUE", adInteger, adParamReturnValue)
            .Parameters.Append .CreateParameter("@shipper", adVarWChar, adParamInput,10, shipperID)
            .Parameters.Append .CreateParameter("@password", adVarWChar, adParamInput,800, password)
            .Parameters.Append .CreateParameter("email", adVarWChar, adParamOutput,800)
            .Execute ,, adExecuteNoRecords
            
            'extract the return value
            isFirstLogin = .Parameters ("RETURN_VALUE")            
            eEmail = .Parameters.Item ("email")      
      End With
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Question by:sarniscool
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4 Comments
 
LVL 7

Expert Comment

by:60MXG
ID: 21870245
Read these articles.  

http://blogs.technet.com/swi/archive/2008/05/29/sql-injection-attack.aspx

You can try to open the page up in internet explorer and then use right mouse click and select "view source".  If you can see your password in the notepad then it is likely someone can hack it.  As long as you lock down SQL Injection and patch your SQL server you are safe.  
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Author Comment

by:sarniscool
ID: 21874940
I've been reading on SQL injection and they say if I pass via parameters I would be safe.  I'm assuming that the above code is passing thigs via Parameters (the code even says parameters in it) so I assume this is ok then?  
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LVL 32

Accepted Solution

by:
Daniel Wilson earned 50 total points
ID: 23099405
>>so I assume this is ok then?  


Yes.  Looks good.  You get into trouble when you dynmically build your SQL statement ... e.g. "select * from Mytable where ID = " & Request("ID")
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Author Closing Comment

by:sarniscool
ID: 31470781
Thanks
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