a. Why does the server have to use a particular initial SYNACK sequence number? b. Suppose an intruder assumes the SYN cookies are used by the target host. Can an attacker build semi-open or totally open links by simply sending an ACK packet to the target? Why or why not? c. Suppose an attacker gathers a significant number of original server sequence numbers. Will the intruder allow the server to build several connections completely open by sending ACKS with the initial sequence numbers? Why?
a. Why does the server have to use a particular initial SYNACK sequence number? b. Suppose an intruder assumes the SYN cookies are used by the target host. Can an attacker build semi-open or totally open links by simply sending an ACK packet to the target? Why or why not? c. Suppose an attacker gathers a significant number of original server sequence numbers. Will the intruder allow the server to build several connections completely open by sending ACKS with the initial sequence numbers? Why?
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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a. Why does the server have to use a particular initial SYNACK sequence number?
b. Suppose an intruder assumes the SYN cookies are used by the target host. Can an attacker build semi-open or totally open links by simply sending an ACK packet to the target? Why or why not?
c. Suppose an attacker gathers a significant number of original server sequence numbers. Will the intruder allow the server to build several connections completely open by sending ACKS with the initial sequence numbers? Why?
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