What type of attack poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake?1 pointSYN-ACK flood attackICMP flood SYN flood attackOn-path attack
Question
What type of attack poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake?1 pointSYN-ACK flood attackICMP flood SYN flood attackOn-path attack
Solution
The type of attack that poses as a TCP connection and floods a server with packets simulating the first step of the TCP handshake is a SYN flood attack.
Here's a step-by-step explanation:
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In a normal TCP connection, the first step of the TCP handshake involves the client sending a SYN (synchronize) packet to the server.
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The server then responds with a SYN-ACK (synchronize-acknowledge) packet.
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Finally, the client sends an ACK (acknowledge) packet back to the server, and the connection is established.
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In a SYN flood attack, the attacker sends a large number of SYN packets to the server, often from a spoofed IP address.
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The server responds to each of these packets with a SYN-ACK packet and waits for the corresponding ACK packet.
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Because the ACK packets never arrive (as they were never going to be sent by the attacker), the server ends up with a large number of half-open connections, which can consume enough resources to make the server unresponsive to legitimate traffic.
Similar Questions
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TCP SYN Flood attack uses the three-way handshake mechanism.1. An attacker at system A sends a SYN packet to victim at system B.2. System B sends a SYN/ACK packet to victim A.3. As a normal three-way handshake mechanism system A should send an ACK packet to system B, however, system A does not send an ACK packet to system B. In this case clientB is waiting for an ACK packet from client A.This status of client B is called _________________Select one:a. "full-open"b. "half-closed"c. "half open"d. "xmas-open"
Which types of attacks take advantage of communication protocols by sending an overwhelming number of requests to a server? Select all that apply.1 pointSYN flood attackTCP connection attackTailgating attackICMP flood attack
SYN Flood is a DOS attack in which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP connections. The signature of attack for SYN Flood contains:Select one:a. The source and destination address having the same valueb. A large number of SYN packets appearing on a network without the corresponding reply packetsc. A large number of SYN packets appearing on a network with the corresponding reply packetsd. The source and destination port numbers having the same value
A security team investigates a server that has been overwhelmed with SYN packets. What does this scenario describe?1 pointSYN flood attackICMP flood attackPing of DeathOn-path attack
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