VS.NET 2005 And CLR Stored Procedure Permission Sets.

Mar 24, 2006

VS.NET 2005 automatically deploys a CLR stored procedure when you start a project with debugging. However, if the CLR stored procedure attempts to access external resources you will get a message stating:

System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

I've isolated this to being because the CLR stored procedure does not have the EXTERNAL_ACCESS permission set.

Is there a security attribute that can be used to decorate the CLR stored procedure code so that VS.NET 2005 will register the CLR stored procedure with the correct permission set?

Steve Miller

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CREATE PROCEDURE [dbo].[SomeSP]

@SomeParam int

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Greetings

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Cursor While Loop
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Hi,
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coding is below.

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//
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Joins…..
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Aug 23, 2004

I'm trying to get a stored procedure working for a website on my local machine that uses ASP.NET 1.1 and MSDE. (I have a single instance of the latter installed, using Windows Authentication mode.)

I've been able to run SQL queries and such directly (using SqlCommand and so forth) by adding the proper reader role to the account MACHINENAMEASPNET. (Substituting my actual machine name for MACHINENAME, of course.) However, when I try to run a stored procedure from an .aspx page, I get the following error:

System.Data.SqlClient.SqlException: EXECUTE permission denied on object 'MySPName', database 'mydbasename', owner 'dbo'.

I've researched this problem here and other places, and every time I get to a response that says to grant execute permission (via OSQL -E) with the following statements:

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go
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go

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My problem is that the GRANT EXECUTE statement always fails with the following error:

Line 1: Incorrect syntax near ''

Using a forward slash instead doesn't make any difference. If I put single quotes around 'MACHINENAMEASPNET', then the error changes to:

Line 1: Incorrect syntax near 'MACHINENAMEASPNET'

And if I eliminate the machine name, then the error is:

Msg 4604, Level 16, State 1, Server MACHINENAME, Line 1
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So can someone please let me know what I am missing that doesn't allow the GRANT EXECUTE to work?

Here is the stack trace (note that I have altered some names and paths for purposes of security):


[SqlException: EXECUTE permission denied on object 'MySPName', database 'mydbasename', owner 'dbo'.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +723
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +194
ASP.Login_aspx.MySPName(String str1, String str2) in C:Inetpubwwwrootloginlogin.aspx:43
ASP.Login_aspx.Button_Click(Object s, EventArgs e) in C:Inetpubwwwrootloginlogin.aspx:20
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain() +1277


Thank you in advance for any assistance!

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Jul 4, 2007

Hello,



I develop a database that notifies clients when data changes by sending an UDP broadcast message using an extended stored procedure. Now I want to use a CLR stored procedure to send the UDP broadcast instead:



using System;

using System.Data.SqlTypes;

using Microsoft.SqlServer.Server;

using System.Net.Sockets;

public partial class UserDefinedFunctions

{

[SqlProcedure]

public static void UdpSend(SqlString address, SqlInt32 port, SqlString message)

{

System.Net.Sockets.UdpClient client = new System.Net.Sockets.UdpClient();

byte[] datagram = message.GetUnicodeBytes();

client.Send(datagram, datagram.Length, (string)address, (int)port);

}

};



I have found that to be allowed to send to 255.255.255.255 I must give the assembly permission set 'Unsafe'. If I change to 'External access' I get:



Msg 6522, Level 16, State 1, Procedure UdpSend, Line 0

A .NET Framework error occurred during execution of user defined routine or aggregate 'UdpSend':

System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

System.Security.SecurityException:

at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)

at System.Security.CodeAccessPermission.Demand()

at System.Net.Sockets.Socket.CheckSetOptionPermissions(SocketOptionLevel optionLevel, SocketOptionName optionName)

at System.Net.Sockets.UdpClient.CheckForBroadcast(IPAddress ipAddress)

at System.Net.Sockets.UdpClient.Send(Byte[] dgram, Int32 bytes, String hostname, Int32 port)

at UserDefinedFunctions.UdpSend(SqlString address, SqlInt32 port, SqlString message)



I cannot use permission set 'Unsafe' in production environment, so what I want is to customize the effective permissions with higher resoloution than the three pre-defined permission sets 'Safe', 'External access' and 'Unsafe'. Except from what is allowed by 'Safe' I only want the permissions necessary to send an UDP broadcast.



Anyone who has something like this ?

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PLEASE PLEASE PLEASE......
I did not get a single response for the last 6 hours... And during this time I was searching and trying to understand the problem but I am really stuck. If this is the wrong forum to ask this question, please redirect me. Really begging for replies...[:'(]
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Server Error in '/' Application.


The SELECT permission was denied on the object 'Contacts', database 'Homer', schema 'dbo'.
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An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:



[SqlException (0x80131904): The SELECT permission was denied on the object 'Contacts', database 'Homer', schema 'dbo'.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +859322.......da da da .......
If I access the page using the IP address the message chages to below but it is not the issue, I just give it if it helps to find the problem:
Server Error in '/' Application.


Runtime Error
Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine. Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off". 
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<SelectParameters>
<asp:ControlParameter ControlID="TextBox1" Name="Param1" PropertyName="Text" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:HomerConnectionString %>"
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<SelectParameters>
<asp:ControlParameter ControlID="TextBox2" Name="Param1" PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>

 
 Environment: SQL Server 2005, VS2005, Vista
 

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GO

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AS

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ORDER BY LabTests.Result DESC

GO


(2) /////--spTopSixAnalytesEXEC.sql--//////////////


USE ssmsExpressDB

GO
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GO

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1 222.10 ug/Kg Acetone
2 220.30 ug/Kg Acetone
3 211.90 ug/Kg Acetone
4 140.30 ug/L Acetone
5 120.70 ug/L Acetone
6 90.70 ug/L Acetone
/////////////////////////////////////////////////////////////////////////////////////////////
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//////////////////--spTopSixAnalytes.vb--///////////

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim sqlConnection As SqlConnection = New SqlConnection("Data Source = .SQLEXPRESS; Integrated Security = SSPI; Initial Catalog = ssmsExpressDB;")

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'Pass the name of the DataSet through the overloaded contructor

'of the DataSet class.

Dim dataSet As DataSet ("ssmsExpressDB")

sqlConnection.Open()

sqlDataAdapter.Fill(DataSet)

sqlConnection.Close()

End Sub

End Class
///////////////////////////////////////////////////////////////////////////////////////////

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Error #2: Type 'SqlDataAdapter' is not defined (in Form1.vb)
Error #3: Array bounds cannot appear in type specifiers (in Form1.vb)
Error #4: 'DataSet' is not a type and cannot be used as an expression (in Form1)

Please help and advise.

Thanks in advance,
Scott Chang

More Information for you to know:
I have the "ssmsExpressDB" database in the Database Expolorer of VB 2005 Express. But I do not know how to get the SqlConnection and the SqlDataAdapter into the Form1. I do not know how to get the Fill Method implemented properly.
I try to learn "Working with SELECT Statement in a Stored Procedure" for printing the 6 rows that are selected - they are not parameterized.




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Hi,
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1. Add New Data Source
2. Choose Type : Oracle and connection tested OK
3. { call Test_Package.Test_Procedure(?) } is it wrong... how to write???
There is an error in the query. ORA-00911: invalid character


Also make sure that you use the text-based generic query designer (2 panes !) instead of the visual query designer (4 panes) - you can switch between them through an icon on the toolbar in the data view of report designer.
Question : I tried many methods but unable to solve it...

create or replace
PACKAGE Test_Package
AS TYPE Test_Type IS REF CURSOR RETURN Test_Table%ROWTYPE;
END Test_Package;


create or replace PROCEDURE Test_Procedure (
Test_Cursor IN OUT Test_Package.Test_Type,
Test_Parameter IN Test_Table.ID%TYPE
)
AS
BEGIN
OPEN Test_Cursor FOR
SELECT *
FROM Test_Table WHERE Test_Table.ID >= Test_Parameter;
END Test_Procedure;

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http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=357121&SiteID=17


http://groups.google.com/group/microsoft.public.sqlserver.reportingsvcs/browse_frm/thread/bbc613c4529ed3cd/696624ec4ba70937?q=oracle+stored+procedures

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To anyone that can help me

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NOW THE EXACT PROBLEM IS THAT THE VB PROGRAM CANNOT OPEN MULTIPLE RECORDSETS, THE ERROR RECEIVED IS LABLED LIKE THIS

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NOW here is the interesting part, AGAIN THIS IS NOT HAPPENING IN OUR TEST ENVIRONMENT, THE VB PROGRAM AGAIN IS ON THE TEST SQL SERVER AND HAS A FORWARD ONLY CURSOR AND INSERTS JUST FINE

NOW IF I MOVE THE VB PROGRAM OUT OF OUR UAT ENVIRONMENT ONTO ANOTHER SERVER IT INSERTS THE RECORD ONTO SQL SERVER JUST FINE, IT OPENS THE RECORDSET AND OPERATES NORMALLY, BOTH SERVERS HAVE EXACT SAME PERMISSIONS

Can anyone help me understand whats happening here

One note, when we changed the cursortype from forward-only to keyset it worked fine but that doesnt explain things

why does it work in test so clearly what we did with changing the cursortype isnt the answer

Thanks please consider this a urgent request

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