DENY Or REVOKE Rights To PUBLIC And GUEST
May 14, 2008
Hi Guys,
We are using MS SQL 2005. I am ask to remove the PUBLIC rights to the objects listed in the following query in the master DB:
SELECT sysusers.name, sysobjects.name,sysprotects.action FROM sysobjects, sysusers, sysprotects WHERE sysobjects.id = sysprotects.id AND sysprotects.uid = sysusers.uid AND sysprotects.protecttype = 205
I keep having the "Cannot find the object [Objectname], because it does not exists or you do not have permission."
How do I create a query to remove the PUBLIC rights at a single run. (There are total of 1660 items, please dun ask me to write the DENY or REVOKE statement 1660 time )
How do I DENY the rights for objects starting with the prefix "dm_" or items like "TABLE PRIVILEGES"
Thanks guys Any help on this is greatly appreciated.
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Feb 7, 2008
I've used the following:
EXEC sp_MSforeachdb 'USE [?];
REVOKE CONNECT FROM GUEST;'
GO
And this is what I get:
Msg 15182, Level 16, State 1, Line 2
Cannot disable access to the guest user in master or tempdb.
Msg 15182, Level 16, State 1, Line 2
Cannot disable access to the guest user in master or tempdb.
Msg 15151, Level 16, State 1, Line 2
Cannot find the user 'GUEST', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 2
Cannot find the user 'GUEST', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 2
Cannot find the user 'GUEST', because it does not exist or you do not have permission.
When I do this:
EXEC sp_MSforeachdb 'USE [?];
SELECT ''[?]'' AS DBName,* FROM sysusers;'
GO
The guest sid for all tables shows 0x00, is this the reason I get above errors?
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May 21, 2008
Can we remove execute access to the public role to all the system stored procedures ? Has anyone done this & are there any issues with doing this for lockdown. Let meknow
Thanks
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May 14, 2008
Hi Guys,
I am unable to deny DMV rights to public. I have already ran the SQL query successfully:
"DENY VIEW SERVER STATE TO public" and "DENY VIEW DATABASE STATE TO public"
However when I check my master DB, the public still have rights to all the dm_***** objects. Am I doing it wrong or is there any steps I missed out? Can anyone help please?
Thanks a million.
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Sep 8, 2006
Hi all,
I have setup a new SQL 2000 SP4 and internal auditor query about revoke permission from Public role and remove guest from all databases.
1. Can I revoke all default permissions (select on system tables in all DBs) from "Public" role? I am concern any error after such action.
2. I found that guest account in DB -- master, tempdb and msdb. According to Microsoft documents. The account should not remove and can't from master and tempdb. How about msdb?
Thanks,
Regards,
Edwin
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Apr 26, 2001
Can I grant rights to "public" role ( customize it). Our app uses it.
thanks,
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Sep 19, 2005
I gave a developer rights to the Public role on a SQL Server 2000 database. The Public role only has explicitly set select rights to the system tables and one user table. There are no other explicit rights set. The developer was able to open a table that had no rights set in enterprise manager and change data. Is this possible?
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Oct 10, 2007
Hi:
When I restore DB from testing to production, we want to remove extra access rights granted to public group. Is there a simple way to query to find out for which objects (table, view, sp, fn) that public group were granted select, delete, update insert, or execute rights?
My objective is to write a sp to remove all user assigned rights to public group (role), but not to deny any rights. How to do it?
Any suggestion will be appreciated.
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Jul 12, 2007
The DBA at our location is demanding local admin (windows) right's to the box so he can function. Right now when he logs in i have given him right's to the inetpub directory, sql directory, i have set him as a sysadmin on sql2005 and gone into the http:\localhost
eports and set him up as a system manager and under site priveledges set him as a sys admin. When he tries to login and configure the report server he gets the following error:
Title-Reporting services configuration manager
Error-There was an error refreshing the UI. bla bla bla
A WMI error has occurred and no additional error information is availiable
Title-Reporting services configuration manager
Error-There was an error while switching panels. The most likely cause is an error retrieving WMI properties. bla bla bla
A WMI error has occurred and no additional error information is availiable
then when he's in sql server 2005 surface area configuation
Title-Surface Area Configuration
Error-Access denied (system.management)
Is there any documentation or anythign anyone can tell me that i can do to give this DBA full access to configure and admin the SQL portion of his system without giving him admin rights to the OS???
Please help!!
Thanks for any time anyone has taken to review this thread!!
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Apr 1, 2008
Hey, how come
REVOKE ALL FROM mepuser, mepnotes
Doesn't work?
I still see execute permissions
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Aug 7, 1999
Can someone explain ..what is the basic difference between TSQL Stmts Grant and Revoke?
A reply will be highly appreciated
Thanks
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Oct 20, 1999
How can I set / view column privileges.
I want to remove the select privilege from a salary column to a certain group of users.
Thomas
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Jul 23, 2005
I have written an stored proc that reads from a text file and executesthe script as dynamic sql.If the text file contains malicious code,I want to be able to detect itand prevent the stored procedure from executing.I've tried revoking delete,insert,update rights all tables in thedatabase to the user .I then granted execute rights to the stored procedure for the sameuser. But the user is still able to delete a record from the table byexecuting the stored procedure.Is there any means to I revoke,insert,delete ,update rights to a storedproc?
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Jan 3, 2007
Dear All,
I need to revoke execute permission from sp_configure (SP) from a user named(a) which do not exists in master database.
Regards
Mohd sufian
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Sep 15, 2006
HI, I have set up a database with 5 users, USER1 has default schema USER1, USER2 has default schema USER2 and so on. My problem is that I want to revoke select permission on schema USER1 to user USER2. I issued the following TSQL in SSMS:
REVOKE SELECT ON SCHEMA::USER1 to USER2
Even though I did that, I can still log on as USER2 and be able to issue SELECT statements on USER1 schema tables. The only way I can do to avoid the SELECT on USER1 schema is to DENY select on USER1 schema. Is it normal?
Thank you for your help,
Ccote
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Nov 26, 2014
I am trying to clean up security. When I check tables in a specific database I see a list of users with select access. There are 1000+ tables in the database. I know I can do 'revoke select on table_name to user_name' ....
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May 30, 2008
Hi everyone. I am having difficulties with a cursor that I am trying to write. The purpose of the cursor is to loop through all tables in a selected Database and revoke "Select" access to that table for the indicated role (RoleToRevoke). I am getting the error on the @name variable within the REVOKE statement. I have placed a comment indicating where I am getting the error. Is there a way to have sql server interpret this @name variable within the REVOKE statement? Thanks for your help.
Code Snippet
USE [Database_Name];
Declare cursorExample Cursor for
Select TABLE_NAME
from information_schema.tables
Where TABLE_TYPE='Base Table'
and TABLE_SCHEMA='dbo'
Declare @name as varchar(255)
Declare @ErrorSave as int
Declare @ErrorCount as int
Open cursorExample
Fetch Next from cursorExample into @name
SET @ErrorSave = 0
SET @ErrorCount = 0
Begin Tran
While @@Fetch_Status=0
Begin
--Getting Error on Line below on @name
REVOKE SELECT ON OBJECT::@name FROM RoletoRevoke;
IF (@@ERROR <> 0)
BEGIN
Print 'Error Revoking Access to Table: ' + CAST(@name AS varchar(75))
SELECT @ErrorCount = @ErrorCount + 1
END
IF (@@ERROR = 0)
BEGIN
Print 'Successful Revoking Select Rights on Table: ' + CAST(@name AS varchar(75))
SELECT @ErrorSave = @ErrorSave + 1
END
Fetch Next from cursorExample into @name
End
IF @ErrorCount = 0
BEGIN
COMMIT TRAN
PRINT 'COMMITTED TRANSACTION'
PRINT 'Total Tables Affected:' + CAST(@ErrorSave AS varchar(75))
END
ELSE
BEGIN
ROLLBACK TRAN
PRINT 'ROLLED BACK TRANSACTION'
END
Close cursorExample
Deallocate cursorExample
GO
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Apr 17, 2015
I have a sql server 2012 server and I need to prevent the users from creating new schemas by mistake. Is there any way to revoke that permission alone but still letting the user to create their own objects in dbo (yes I know that shouldn't be in dbo but that is another issue).
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Oct 25, 1999
If our SQL Server is not part of a domain, can "Guest" users still connect to the SQL server?
What we are experiencing is -- when a drive is mapped to the server connectivity is fine.
But, without the drive mapping, the SQL connections cannot be made.
Thoughts, Ideas,
(hopefully without adding unique logins for each user at the server)
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Dec 13, 2004
I want to know what is the guest account and what its use for ?
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Apr 21, 2006
Hello world
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Apr 17, 2008
In SQL2K5 guest user can not be dropped from ANY databases. How ever we can use the following command to disable it.
USE <Database Name>
GO
REVOKE CONNECT FROM GUEST
GO
How to find in a DB, whether guest user is disable or not, using TSQL?
------------------------
I think, therefore I am - Rene Descartes
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Jul 20, 2005
Nel database "master" ho mappato, per errore, l'utente "guest" su unutente sql "XXX" creato in SQLServer.Questo tipo di impostazione non permette pił di aver accesso conl'utente anonimo "guest" (mappato su null) al db (con autorizzazionilimitate al ruolo public).Ho provato sia da EM che con le varie SP a rimuovere l'utente, amapparlo su un'altro utente, ... ma non sono riuscito a ripristinarela situazione di partenza.Mi servirebbe una idea per non dover effettuare il backup di tutti idb, disinstallare SQLServer, reinstallare SQLServer e fare il restoredi tutti i db (soluzione possibile ma che tengo come ultimaspiaggia!!).Grazie
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May 11, 2004
I would like a guest to view some items on the application.
And I recently intalled SQL Server 2000 on my machine. Will integrate Access when ready.
I can access or simply read data from a db if I specify User ID and Password.
Such as....
Dim nwindConn As SqlConnection = New SqlConnection("Data Source=localhost;User Id=sa;Password=xxxxx;Initial Catalog=Northwind;")
Yes, testing first, then adjusting all my code for the SQL instead of Access.
If I leave the id and pw out, it won't read - login failure.
I have read so much on authentication and some posts here, even the one on login failure, but that didn't help.
Keep in mind, just installed, only users are the default ones by the installation.
What setting in the SQL Server is there, and I have looked, that if it's a guest, no id or pw, allow read only to items such as datagrids which only read from tables?
Thanks all,
Zath
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Jan 17, 2001
How do you disable Guest account in SQL Server.
can you do this thru registry?
Tahnk You,
Piyush Patel
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Feb 28, 2001
Hi All,
I encountered a bizzard situation. The guest id in tempdb disappeared after I rebooted (shutdown and startup) my server. That caused errors in application whenever a stored proc needs to create a temporary table.
Has anyone seen this happened before? Any idea on why or how it happened?
Thanks in advance.
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Oct 18, 2005
Hi,
I know this seems odd but is there any way to change the guest's password?
I know this is paradoxical regarding the nature of guest user but if there is any way please clarify me!
-Thanks
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Apr 15, 2008
Hi,
I have some questions regarding guest acct. I am using some database security scanning software (again) and it says that guest acct should be dropped from these databases, msdb, pubs, Northwind.
Can i safely say that i can drop the guest acct in pubs and Northwind without any issue?
For msdb, will there be any concerns? How can i verify?
If i just revoke the public permission on guest, is it the same as dropping the user?
Lastly, I see that in all databases, the guest acct exists, but some are of permit and some are of via group membership for the database access column. What is the difference?
Thanks guys. appreciate your help. Audit deadline coming up.. i still have about 20 more audit pts to go... :)
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Nov 18, 2006
Just wondering what is the use of the build in guest account in SQL2000?
Should you remove it? Or just leave it there?
I quess a user can make an odbc connection to the database with that account, but can cause no harm.
What to do?
Greetz,
The nerd.
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Apr 23, 2006
When i restart my database server, guest login is getting deleted automatically from tempdb. it shudn't happen. please can anyone suggest me solution for my problem.
thanx and regards
kiran
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Jan 15, 2015
I try to attach a database mdf file to Microsoft SQL server 2014 on Amazon Elastic Computing Cloud, EC2, but fail with the following message, "User 'guest' does not have permission to run DBCC checkprimaryfile. (Microsoft SQL Server, Error: 2571)" The ID I use to REMOTE login has administrator rights and I have chosen to "run as administrator"
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Jul 17, 2007
Everytime I reboot my sql server 2000 the guest account on tempdb is gone, but the guest account on master remains.
Can anyone offer my any ideas how I can stop that from happening?
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Jan 7, 2008
Hi All:
I hope I'm in the correct forum for this question. If I'm not, forgive me and point me in the proper direction.
I have SQL Server 2000 databases that I am trying to secure. To that end I've deleted the guest account from all but the master and tempdb databases.
Within the master db I've denied access of any "flavor" to all objects but spt_values, syscharsets, sp_MSSQLDMO80_version, and sp_MSdbuserpriv (only because I've discovered they are necessary).
Can anyone tell me where I might find the absolute minimum permissions configuration for the guest account in master?
I have no third party vendor software accessing my SQL Server 2000 databases. The thought of
Demographics:
SQL Server 2000 sp4 running on Windows 2003 Server with the current service packs.
Any help is greatly appreciated.
caeriel
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