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Assessment Title
Rule Text
Unless it has been determined that availability is paramount, DB2 must, upon audit failure, cease all auditable activity.
Description
Discussion Text
It is critical that when the DBMS is at risk of failing to process audit logs as required, it take action to mitigate the failure. Audit processing failures include: software/hardware errors; failures in the audit capturing mechanisms; and audit storage capacity being reached or exceeded. Responses to audit failure depend upon the nature of the failure mode.
When the need for system availability does not outweigh the need for a complete audit trail, the DBMS should cease production of audit records immediately, rolling back all in-flight transactions. DB2 does this when configured to track audit errors.
Systems where audit trail completeness is paramount will most likely be at a lower MAC level than MAC I; the final determination is the prerogative of the application owner, subject to Authorizing Official concurrence. In any case, sufficient auditing resources must be allocated to avoid a shutdown in all but the most extreme situations.
When the need for system availability does not outweigh the need for a complete audit trail, the DBMS should cease production of audit records immediately, rolling back all in-flight transactions. DB2 does this when configured to track audit errors.
Systems where audit trail completeness is paramount will most likely be at a lower MAC level than MAC I; the final determination is the prerogative of the application owner, subject to Authorizing Official concurrence. In any case, sufficient auditing resources must be allocated to avoid a shutdown in all but the most extreme situations.
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