IT Audit Tools Needed

Hi all,
I’m looking for a tool to help us in carrying out our Audits. Functionality we require for the software includes ability to:

Extract information from the system configuration of the operating system in both Windows and UNIX

Extract user and password information from the server.

Extract information on vulnerabilities from the server (e.g. Windows updates not set to automatically download and install.

Extract information on the configuration of the Database (Oracle, MS SQL)

Extract information on file permissions.

I would appreciate it if anyone could point me towards any products that may carry out any of the functionality described.

Thanks