Question

a hacker has discovered udp protocol weaknesses on a target system. the hacker attempts to send large numbers of udp packets from a system with a spoofed ip address, which broadcasts out to the network in an attempt to flood the target system with an overwhelming amount of udp responses. which of the following dos attacks is the hacker attempting to use?

syn flood
smurf attack
teardrop attack
fraggle attack

Explanation:

Analyze the attack mechanism

The scenario describes an attack where a hacker sends a large volume of UDP packets with a spoofed source IP address (the victim's IP) to a network's broadcast address. This causes all hosts on the network to send responses back to the victim, flooding it.

Evaluate the options

• SYN flood: This is a TCP-based attack that exploits the three-way handshake.
• Smurf attack: This is similar to the described attack but uses ICMP echo requests (pings) rather than UDP.
• Teardrop attack: This involves sending fragmented IP packets with overlapping payloads to crash the system during reassembly.
• Fraggle attack: This is a Denial of Service (DoS) attack that uses spoofed UDP packets directed to broadcast addresses to flood a target.

Identify the correct match

Since the attack specifically utilizes the UDP protocol to broadcast spoofed packets and flood the target with UDP responses, it is classified as a Fraggle attack.

Answer:

• SYN flood
• Smurf attack
• Teardrop attack
• Fraggle attack (Correct answer)