Microsoft SQL Server 2000 through SQL Server 2000 SP2 allows the "public" role to execute the (1) sp_MSSetServerProperties or (2) sp_MSsetalertinfo stored procedures, which allows attackers to modify configuration including SQL server startup and alert settings.
http://www.securityfocus.com/bid/5604
http://www.ngssoftware.com/advisories/mssql-sp_MSSetServerProperties.txt