SQLServer And SQLServerAgent Account Privileges

Jun 13, 2007

I recently installed SQL Server 2005 and setup a database for one of the systems that I support as a DBA. After installation and the system, which has remote developers, was tested successfully, our security group performed a security scan on the SQL server. The scan revealed a few potential vulnerabilities. Below are the questionable items that the scan identified within the Windows User Rights Assignment. I believe the SQL Server installation assigns these system privileges to the SQLServer and SQLServerAgent accounts by default. I'd like to know how many, if any of these privileges, are necessary.



1) SQLServer and SQLServerAgent accounts have "Bypass Traverse Setting" privilege within Windows User Rights Assignment

2) SQLServer and SQLServerAgent accounts have "Log on as Batch Job" privilege within Windows User Rights Assignment. I realize I need this to schedule SQL Server jobs which run batch jobs and such, but any other reason to keep this privilege.

3) SQLServer and SQLServerAgent accounts have "Memory Quota" privilege within Windows User Rights Assignment

4) SQLServer and SQLServerAgent accounts have "Replace Process Token" privilege within Windows User Rights Assignment



Any guidance on this would be greatly appreciated.



Thanks in advance,



Jason Malasovich

SQL Server DBA

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SQLServer And SQL ServerAgent Account Privileges

Jun 15, 2007

After installing SQL Server 2005, a security scan was performed on the SQL server. Below are a few items that the scan identified within the Windows User Rights Assignment as potential vulnerabilities; it is worthy to note in Microsoft's defense that we lock things down pretty tightly in our IT shop. I suspect the SQL Server install assigns these OS privileges to the SQLServer and SQLServerAgent accounts by default. I have not heard of the 1st, 3rd and 4th below and suspect that they are not essential to the normal operation of SQL Server, but would like to know if anyone out there knows for sure. We are considering eliminating some or all of these privieleges for the SQLServer and SQLServerAgent system accounts at the OS level.



1) SQLServer and SQLServerAgent accounts have "Bypass Traverse Setting" privilege within Windows User Rights Assignment

2) SQLServer and SQLServerAgent accounts have "Log on as Batch Job" privilege within Windows User Rights Assignment. I realize I need this to schedule SQL Server jobs which run batch jobs and such, but any other reason to keep this privilege.

3) SQLServer and SQLServerAgent accounts have "Memory Quota" privilege within Windows User Rights Assignment

4) SQLServer and SQLServerAgent accounts have "Replace Process Token" privilege within Windows User Rights Assignment



Any guidance on this would be greatly appreciated.



Regards,



Jason

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