Auditing of account use and user actions is a critical part of the security architecture. Auditable events must be logged. If the firewall becomes unable to write events to the audit log, this is known as an audit processing failure. Audit processing failures include software and hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded.
To preserve recent audit information, if an audit failure occurs, the firewall implementation must perform one of the following actions: stop producing audit records; overwrite older records; or purge the oldest records. The specific action configured must be defined by organizational policy. |