| Without the association of security labels to information, there is no basis for the DBMS to make security-related access-control decisions.
Security labels are abstractions representing the basic properties or characteristics of an entity (e.g., subjects and objects) with respect to safeguarding information.
These labels are typically associated with internal data structures (e.g., tables, rows) within the database and are used to enable the implementation of access control and flow control policies, reflect special dissemination, handling or distribution instructions, or support other aspects of the information security policy.
One example includes marking data as classified or FOUO. These security labels may be assigned manually or during data processing, but, either way, it is imperative these assignments are maintained while the data is in storage. If the security labels are lost when the data is stored, there is the risk of a data compromise.
SQL Server does not include security labeling as a standard or licensable feature. Earlier releases of this STIG suggested using the SQL Server Label Security Toolkit, from codeplex.com. However, codeplex.com has been shut down, and it is unclear whether the Toolkit is still supported. If the organization does have access to the Toolkit, it may still be used, provided the organization accepts responsibility for its support. Other implementations may also exist. Custom application code is also a viable way to implement a solution. |
