Question

In: Computer Science

Which of the following steps is not part of a sequence prediction (aka blind injection )...

Which of the following steps is not part of a sequence prediction (aka blind injection ) TCP attack?

a.Attacker generally mounts a SYN flood on the victim to keep it from responding
b.The initial TCP connection request sent from the attacker to the victim is not spoofed.
c.The attacker guesses the next ISN of the victim
d.The third-party to this attack can t respond to the victim s TCP ACK because it s SYN flooded

Solutions

Expert Solution

The correct option is b.The initial TCP connection request sent from the attacker to the victim is not spoofed.

Explanation:

The sequence of prediction is shown below:

If the intruder is X will predict the ISNs, then X can be impersonated T:

X -> S: SYN(ISNx). SRC = T

S -> T:SYN(ISNs). ACK(ISNx)

X ->: ACK(ISNs), SRC = T

X -> S: ACK(ISNs), SRC = T, data is nasty.

So, the sequence prediction consists of the flooding of SYN.

Therefore, the option a. and b. are the part of sequence prediction.

  • The problem of the security generates at the time when the ISN is generated.

Every operating system uses its own algorithms to generate the ISNs.

The attacker try to figure out the algorithm which is used to generate the ISNs to generate the future ISNs. These are generated by the source host.

Hence, the attacker can guess the future ISNs.

Therefore, the option c. is also a part of sequence prediction.

  • For generating the initial sequence, there is a need of high degree of unpredictability.

Therefore, the option b. is not the part of sequence prediction.


Related Solutions

Which of the following depicts the proper sequence of steps in the accounting cycle?
Which of the following depicts the proper sequence of steps in the accounting cycle? a. Journalize the transactions, analyze business transactions, prepare a trial balance b. Prepare a trial balance, prepare financial statements, prepare adjusting entries c. Journalize the transactions, analyze business transactions, prepare a trial balance d. Prepare a trial balance, prepare adjusting entries, prepare financial statements
List and describe the sequence of events for injection molding.
List and describe the sequence of events for injection molding.
Which of the following steps is NOT part of the life cycle of a lytic phage?...
Which of the following steps is NOT part of the life cycle of a lytic phage? A. The phage DNA is transcribed, and the resulting mRNA is translated to make capsid proteins. B. The phage DNA integrates into the bacterial chromosome. C. Phage DNA is injected into the bacterial cell. D. All of the steps listed are part of the life cycle of a lytic phage. E. Many copies of phage DNA are made
Steps in the Accounting Cycle Rearrange the following steps in the accounting cycle in proper sequence:...
Steps in the Accounting Cycle Rearrange the following steps in the accounting cycle in proper sequence: a. Transactions are analyzed and recorded in the journal. 1 b. An unadjusted trial balance is prepared. 2 c. Transactions are posted to the ledger. 3 d. Adjustment data are assembled and analyzed. 4 e. An adjusted trial balance is prepared. 5 f. Adjusting entries are journalized and posted to the ledger. 6 g. An optional end-of-period spreadsheet is prepared. 7 h. A post-closing...
Beta measure which of the following? A. total risk B.non-diversifiable, aka market risk C.diversiable, aka firm...
Beta measure which of the following? A. total risk B.non-diversifiable, aka market risk C.diversiable, aka firm specific risk D.none of the above
Which of the following would NOT be a rationale for giving a parenteral injection?
QUES : Which of the following would NOT be a rationale for giving a parenteral injection? select one : a. Precise control over dosage b. Inability of the person to take medication c. Slower onset of action d. Inability to be absorbed when given orally QUES : Which of the following is NOT an administration site for intramuscular injections? select one : a. Dorsogluteal b. Vastus Lateralis c. Ventrogluteal d. Sartorious Muscle QUES : Which of the following is NOT...
Decide which sequence of events is most CORRECT for the initiation and elongation steps of translation...
Decide which sequence of events is most CORRECT for the initiation and elongation steps of translation in prokaryotic cells? (1) small ribosomal subunit binds to mRNA (2) initiator tRNA binds start codon on mRNA (3) active 70S ribosome is formed (4) translocation of ribosome (5) binding of second aminoacyl tRNA A. 2, 3, 1, 5, 4 B. 1, 2, 3, 5, 4 C. 2, 1, 3, 4, 5 D. 1, 2, 3, 4, 5 E. 1, 3, 2, 4, 5
what is the sequence of the steps in the machine learning process
what is the sequence of the steps in the machine learning process
Which of the following is NOT a sequence of DNA that could be cut by a...
Which of the following is NOT a sequence of DNA that could be cut by a restriction enzyme? a. GAATTC                  b. ATCGAT                 c. GTAC                       d. GTTCCA e. AGATCT Why?
Two injection molding machines are used to make the same part. The part warpage from the...
Two injection molding machines are used to make the same part. The part warpage from the two machines have known standard deviations of ?1 = 0.012 and ?2 = 0.018. The engineering team believes that the two machines have the same mean warpages. 12 samples from each machine are collected, and the sample means are calculated at ?̅1 = 0.036 and ?̅2 = 0.034. (a) Is the engineering team correct? Use the appropriate hypothesis test with α = 0.05 to...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT