Azure SQL Database must protect against a user falsely repudiating by use of system-versioned tables (Temporal Tables).
An XCCDF Rule
Description
<VulnDiscussion>Nonrepudiation of actions taken is required in order to maintain data integrity. Examples of particular actions taken by individuals include creating information, sending a message, approving information (e.g., indicating concurrence or signing a contract), and receiving a message. Nonrepudiation protects against later claims by a user of not having created, modified, or deleted a particular data item or collection of data in the database. In designing a database, the organization must define the types of data and the user actions that must be protected from repudiation. The implementation must then include building audit features into the application data tables and configuring the DBMS's audit tools to capture the necessary audit trail. Design and implementation also must ensure that applications pass individual user identification to the DBMS, even where the application connects to the DBMS with a standard, shared account. If the computer account of a remote computer is granted access to SQL Server, any service or scheduled task running as NT AUTHORITY\SYSTEM or NT AUTHORITY\NETWORK SERVICE can log into the instance and perform actions. These actions cannot be traced back to a specific user or process.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-255305r960864_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Alter sensitive tables to utilize system versioning.
--Alter non-temporal table to define periods for system versioning
ALTER TABLE <MyTableName>
ADD PERIOD FOR SYSTEM_TIME (SysStartTime, SysEndTime),
SysStartTime datetime2 GENERATED ALWAYS AS ROW START HIDDEN NOT NULL