Database Vulnerability Scanners
Databases are often overlooked when it comes to security, providing a weak link to the wannabe attacker. A Database Administrator (DBA) may not have security at the forefront of their minds as they go about their business, in fact they often introduce vulnerabilities from inappropriate roles within roles or privilege runaway. These products are designed to identify vulnerabilities and inappropriate configuration within databases giving providing both the DBA and Security Officer peace of mind about the security of their database.
Loads more freeware MS SQL tools here