COIT20262 - Advanced Network Security Assignment 1 Submission

COIT20262 Assignment 1 Submission Term 1, 2019
COIT20262 - Advanced Network Security, Term 1, 2019
Assignment 1 Submission
Due date: 5pm Friday 26 April 2019 (Week 6) ASSESSMENT
Weighting: 40%
1Length: N/A
Student Name: enter your name
Student ID: id
Campus: campus
Tutor: tutor
Advanced Network Security Page 1 of 7

COIT20262 Assignment 1 Submission Term 1, 2019
Question 1. Packet Capture and Analysis
Part (c) Message Sequence Chart
Advanced Network Security Page 2 of 7

COIT20262 Assignment 1 Submission Term 1, 2019
Part (d) Information from Packets
Information Answer
Time between <ENTER> on TCP 2.325
Packet numbers for question above 4 and 6
IP address and port of UDP client 192.168.2.21 Port 9784
MAC of UDP server 08:00:27:aa:od:9b
Hex value of timestamp 080a0000aec000000000
Hex value of checksum d917
Part (e)
The message that are transferred between node 2 and node 1 can be hijacked with the
implementation of man in the middle attack or eavesdropping because there is no
encapsulation. The risk is needed to be mitigated with the application of RSA encryption
algorithm for the encapsulation of data packets that are transmitted in the network.
Part (f)
The server is unable to detect the modification that took place in the database since the
attacker can change the database by forging the identity of the authorised user. The attacker
uses cookie stealing attack for gaining access and them injects malicious SQL codes for
modifying the content of the database.
Part (g)
The replay attack on TCP exchange is performed with the use of valid data for causing denial
of service attack and for performing the attack the attacker needs to intercept the packet
transmitter from the source and retransmit it. The server would be unaware of the attack if the
packets are not tagged with session ID and it would seem to the server that an authorised user
have sent the data packet.
Advanced Network Security Page 3 of 7