Câu 241: GCIH: GIAC Certified Incident Handler

Which of the following statements are true about firewalking?Each correct answer represents a complete solution. (Choose all that apply.)

1. A. To use firewalking, the attacker needs the IP address of the last known gateway before the firewall and the IP address of a host located behind the firewall. — đáp án hiện tại
2. B. In this technique, an attacker sends a crafted packet with a TTL value that is set to expire one hop past the firewall. — đáp án hiện tại
3. C. A malicious attacker can use firewalking to determine the types of ports/protocols that can bypass the firewall. — đáp án hiện tại
4. D. Firewalking works on the UDP packets.