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Deny db_name(), @@Version and related


Deny db_name(), @@Version and related

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alexeliasrp
alexeliasrp
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Hello!

Please, how do I deny SELECT on DB_NAME(), @@VERSION, SYSTEM_USER(), @@SERVERNAME, IS_SRVROLEMEMBER and more to an SQL login?

Thanks!
LutzM
LutzM
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All I can think of is to deny SELECT in general and only allow EXECUTE.
However, I don't know if this will also work for system variables.



Lutz
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SQLRNNR
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Deny select doesn't work for the system functions. And you can't deny execute on the functions such as @@servername because it will invoke an error.

I don't see any documentation on what the minimum permissions are to be able to execute those functions.

You might try to harden the server with regards to the public role. But that is risky and I have seen more than a few clients who have messed up their server by doing it wrong.



Jason AKA CirqueDeSQLeil
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GilaMonster
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May I ask why? What is the root problem you're trying to solve here?


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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