Question 200
A FortiOS 7.6 team examines: An application uses one documented API port but a new rule permits all TCP and UDP traffic. Select TWO complementary choices: the most appropriate corrective action AND the specific evidence confirming success.
Explanation
Correct Answers
The reported FortiOS 7.6 condition is: An application uses one documented API port but a new rule permits all TCP and UDP traffic. The targeted administrative response is: Create explicit narrowly scoped allow rules and retain the firewall implicit deny for traffic without an approved matching policy. The relevant failure risk is: Adding a catch-all allow to solve one client error exposes unrelated source and destination paths. Validate with: Approved protocol tests succeed while unmatched source, destination and service combinations are denied and logged as configured.
For the observed situation (An application uses one documented API port but a new rule permits all TCP and UDP traffic), the most specific acceptance evidence is: Approved protocol tests succeed while unmatched source, destination and service combinations are denied and logged as configured. It validates the recommended response: Create explicit narrowly scoped allow rules and retain the firewall implicit deny for traffic without an approved matching policy. This addresses the documented risk: Adding a catch-all allow to solve one client error exposes unrelated source and destination paths.
Incorrect Answers
Fsso login troubleshooting and stale mappings (2.4) would demonstrate or implement: Guessing at a firewall address rule may conceal stale logon state or an actual collector synchronization failure. The case states: An application uses one documented API port but a new rule permits all TCP and UDP traffic. The most direct paired action and test is: Create explicit narrowly scoped allow rules and retain the firewall implicit deny for traffic without an approved matching policy.
Ldap directory authentication configuration (2.3) would demonstrate or implement: An approved directory test user authenticates and maps to the intended access group while invalid credentials fail. This choice can be useful for that problem, but it does not establish the Implicit deny and least privilege control being assessed here.
Fsso collector agent mapping (2.4) addresses another technical failure: Incorrect or stale user-to-IP correlation can assign the wrong identity-based firewall privileges to shared addresses. The required paired action and test concerns Implicit deny and least privilege; a passing result for this alternative could leave that requirement unresolved.