Passed Exam Today CAS-005

Configuring a span port on the perimeter firewall to ingest logs is the best architectural change to ensure that all client proxy traffic is captured for analysis. Here’s why:

Comprehensive Traffic Capture: A span port (or mirror port) on the perimeter firewall can capture all inbound and outbound traffic, including traffic that might bypass the proxy. This ensures that all network traffic is available for analysis.

Centralized Logging: By capturing logs at the perimeter firewall, the organization can centralize logging and analysis, making it easier to detect and investigate anomalies.

Minimal Disruption: Implementing a span port is a non-intrusive method that does not require significant changes to the network architecture, thus minimizing disruption to existing services.

Theregulated lab environment (Yes)shares the same VLAN (10.2.0.0/22) withusers, creatingzone traversalrisk from unregulated zones to sensitive datanetworks.

This allows pivoting and lateral movement from non-regulated user devices into regulated lab environments — a classiczone boundary violation.

Zone traversal should be mitigated with segmentation and firewall enforcement.

FromCAS-005, Domain 2: Risk Management and Mitigation Strategies:

“Zone traversal occurs when segmentation boundaries are misconfigured or merged, leading to regulatory and risk compliance failures.”

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The most appropriate technique to improve the cryptographic strength of a password-storage component in a web application without completely replacing the crypto-module is key stretching. Here's why:

Enhanced Security: Key stretching algorithms, such as PBKDF2, bcrypt, and scrypt, increase the computational effort required to derive the encryption key from the password, making brute-force attacks more difficult and time-consuming.

Compatibility: Key stretching can be implemented alongside existing cryptographic modules, enhancing their security without the need for a complete overhaul.

Industry Best Practices: Key stretching is a widely recommended practice for securely storing passwords, as it significantly improves resistance to password-cracking attacks.