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Protecting Microsoft SQL Server Databases
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Looking at SQL Server Books Online we find nothing, but we find . Microsoft SQL Server Books Online. Program to decrypt SQL Server Agent connection passwords .
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NTRODUCTION This paper will discuss a number of recently discovered vulnerabilities in Microsoft SQL Server and will demonstrate the techniques used by the author to find these security holes .
COLLECTING P ASSWORDS When SQL Server is running using mixed-mode authentication, login passwords are saved in various locations. Some passwords are saved using strong encryption and permissions (such as the passwords saved in master.dbo.sysxlogins), but many of them are saved using weak encryption (most accurately referred to as encoding) and weak default permissions. You may be asking, “Why passwords are saved with weak encryption?” The reason is that these passwords must later be extracted and used by SQL Server to establish connections with itself and other SQL Servers. This occurs during many of the batch processes that SQL Server relies on, including replication, jobs scheduled through the SQL Agent, and DTS packages.
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