ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question
Your team is building a SaaS platform that includes a web console for system administration and security configuration. To minimize the risk of compromise while ensuring authorized staff can reliably perform management tasks, which approach offers the most secure architectural design for the management interface?
Expose management APIs on the same HTTPS port (443) as customer traffic and enforce mutual TLS authentication.
Use VLAN tagging to keep administrative and user traffic separate within the same subnet and require complex passwords for administrators.
Provide an out-of-band management network that is isolated from production traffic and reachable solely through a dedicated VPN protected by multifactor authentication.
Deploy the management interface on the production network but restrict access with multifactor authentication only.
Placing a management interface on a logically and physically isolated out-of-band network limits exposure to the public Internet and the application's user traffic, drastically reducing the attack surface. Requiring VPN access and multifactor authentication adds layered protection and strong identity assurance before any management traffic can reach the console. Relying only on MFA (same network), shared ports, or simple VLAN separation still leaves the interface reachable from production or public networks and provides more opportunities for attack.
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What is an out-of-band management network?
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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Architecture and Design
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