You are attempting to man-in-the-middle a session. Which protocol will allow you to guess a sequence number?

The correct answer is A. TCP. At the establishment of a TCP session the client starts by sending a SYN-packet (SYN=synchronize) with a sequence number. To hijack a session it is required to send a packet with a right seq-number, otherwise they are dropped.

Session Hijacking

Question

Options

ATCP
BUPD
CICMP
DUPX

How the community answered

(46 responses)

A
74% (34)
B
15% (7)
C
7% (3)
D
4% (2)

Explanation

At the establishment of a TCP session the client starts by sending a SYN-packet (SYN=synchronize) with a sequence number. To hijack a session it is required to send a packet with a right seq-number, otherwise they are dropped.

Topics

#TCP sequence numbers#session hijacking#MITM#TCP/IP protocol

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