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Assessment Title
Rule Text
The DBMS must limit the number of concurrent sessions for each system account to an organization-defined number of sessions.
Description
Discussion Text
Application management includes the ability to control the number of users and user sessions utilizing an application. Limiting the number of allowed users, and sessions per user, is helpful in limiting risks related to Denial of Service attacks.
This requirement addresses concurrent session control for a single information system account and does not address concurrent sessions by a single user via multiple system accounts.
Unlimited concurrent connections to the DBMS could allow a successful Denial of Service (DoS) attack by exhausting connection resources.
The organization will need to define the maximum number of concurrent sessions by account type, by account, or a combination thereof. In deciding on the appropriate number, it is important to take into account the work requirements of the various types of user. For example, 2 might be an acceptable limit for general users accessing the database via an application; but 10 might be too few for a database administrator using a database management GUI tool, where each query tab and navigation pane may count as a separate session.
This requirement addresses concurrent session control for a single information system account and does not address concurrent sessions by a single user via multiple system accounts.
Unlimited concurrent connections to the DBMS could allow a successful Denial of Service (DoS) attack by exhausting connection resources.
The organization will need to define the maximum number of concurrent sessions by account type, by account, or a combination thereof. In deciding on the appropriate number, it is important to take into account the work requirements of the various types of user. For example, 2 might be an acceptable limit for general users accessing the database via an application; but 10 might be too few for a database administrator using a database management GUI tool, where each query tab and navigation pane may count as a separate session.
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