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Should I enable Xp_cmdshell?
By default, xp_cmdshell is disabled. If you don’t have a reason to enable it, then the best option is to leave it as is: disabled. However, if you do need it for a solution, then realize that the call to disable xp_cmdshell doesn’t do much at all to increase the security of your SQL Servers.
What account does Xp_cmdshell run under?
service account
7 Answers. Because you’re connecting to SQL as a login in the sysadmin group, xp_cmdshell runs as the service account. If you connect as a low-privilege login, then it will use the xp_cmdshell_proxy_account instead.
What’s Xp_cmdshell?
“xp_cmdshell” is an extended stored procedure provided by Microsoft and stored in the master database. This procedure allows you to issue operating system commands directly to the Windows command shell via T-SQL code. If needed the output of these commands will be returned to the calling routine.
What is Xp_cmdshell proxy account?
By default xp_cmdshell can only be used by members of the server role sysadmin. If you want logins that are not members of the sysadmin group to use xp_cmdshell you can do this by setting up proxy credentials for xp_cmdshell. By default the credentials for xp_cmdshell are turned off.
What is the XP cmdshell option in SQL Server?
The xp_cmdshell option is a SQL Server server configuration option that enables system administrators to control whether the xp_cmdshell extended stored procedure can be executed on a system. By default, the xp_cmdshell option is disabled on new installations.
Do you need control server permission to use XP cmdshell?
When first enabled, xp_cmdshell requires CONTROL SERVER permission to execute and the Windows process created by xp_cmdshell has the same security context as the SQL Server service account. The SQL Server service account often has more permissions than are necessary for the work performed by the process created by xp_cmdshell .
Why is the XP cmdshell server configuration option disabled?
This option allows system administrators to control whether the xp_cmdshell extended stored procedure can be executed on a system. By default, the xp_cmdshell option is disabled on new installations. Before enabling this option, it’s important to consider the potential security implications.
What happens when XP cmdshell is executed within a batch?
xp_cmdshell operates synchronously. Control is not returned to the caller until the command-shell command is completed. If xp_cmdshell is executed within a batch and returns an error, the batch will fail. This is a change of behavior. In earlier versions of MicrosoftSQL Server the batch would continue to execute.