Question 410
At Keystone BioLabs, the laboratory infrastructure team administers FortiGate-based protection for research sites with private data collection networks under requirements for sensitive workload isolation and measurable security events. The security reviewer verifies a claimed fix for: A business-critical certificate-pinned application fails after deep SSL inspection even though its TLS server certificate is otherwise valid. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
The pinned application completes a valid secure connection while unrelated permitted HTTPS sessions still receive the required inspection. This outcome validates the intended correction for: A business-critical certificate-pinned application fails after deep SSL inspection even though its TLS server certificate is otherwise valid. The associated approved corrective action is: Create a narrowly scoped inspection exemption for the documented pinned service using appropriate destination and application checks. The Keystone BioLabs reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
An authorized harmless antivirus test attachment triggers the expected action while normal message delivery remains functional. This would verify a separate corrective action: Configure appropriate supported antivirus scanning for the permitted mail protocol and matching policy or inspection profile. That separate change addresses: A mail relay transfers an infected test attachment through a service not covered by the current FortiGate antivirus protocol options. It does not validate the current Keystone BioLabs issue: A business-critical certificate-pinned application fails after deep SSL inspection even though its TLS server certificate is otherwise valid. The relevant acceptance evidence is: The pinned application completes a valid secure connection while unrelated permitted HTTPS sessions still receive the required inspection.
The controlled test session is actually stopped when block is configured and the record does not misstate a monitor-only alert. This would verify a separate corrective action: Verify the signature's configured prevention action and distinguish detection-only results from a block decision. That separate change addresses: An incident analyst claims an IPS prevention succeeded based solely on a signature match logged with action monitor. It does not validate the current Keystone BioLabs issue: A business-critical certificate-pinned application fails after deep SSL inspection even though its TLS server certificate is otherwise valid. The relevant acceptance evidence is: The pinned application completes a valid secure connection while unrelated permitted HTTPS sessions still receive the required inspection.
A controlled test detection produces an attributable antivirus log and the associated user traffic record. This would verify a separate corrective action: Enable relevant antivirus and traffic logs and correlate the signature event with source, destination, file and policy identifiers. That separate change addresses: Antivirus detects a file but incident responders cannot determine which policy or session delivered it because its logging configuration is incomplete. It does not validate the current Keystone BioLabs issue: A business-critical certificate-pinned application fails after deep SSL inspection even though its TLS server certificate is otherwise valid. The relevant acceptance evidence is: The pinned application completes a valid secure connection while unrelated permitted HTTPS sessions still receive the required inspection.