Certified Information Systems Auditor (CISA) — Question 630

Which of the following attack techniques will succeed because of an inherent security weakness in an Internet firewall?

Answer options

• A. Flooding the site with an excessive number of packets
• B. Intercepting packets and viewing passwords
• C. Phishing
• D. Using a dictionary attack of encrypted passwords

Correct answer: A

Explanation

The correct answer is A, as flooding the site with excessive packets can overwhelm the firewall's capacity, leading to a denial of service. The other options either exploit different vulnerabilities or require user interaction, which does not directly leverage the inherent weaknesses of firewalls.