COIT20262 - Advanced Network Security

COIT20262 Term 1, 2019
COIT20262 - Advanced Network Security, Term 1, 2019
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
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COIT20262 Term 1, 2019
Question 1. Packet Capture and Analysis
Part (c) Message Sequence Chart
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COIT20262 Term 1, 2019
Part (d) Information from Packets
Information Answer
Time between <ENTER> on TCP 6.567 – 6.569
Packet numbers for question above 6 and 8
IP address and port of UDP client 192.168.2.21 Port 9211
MAC of UDP server 08:00:27:ad:4e:2a
Hex value of timestamp 080027ca404d080027ad4e2a08004500003
c068340004006afc8c0a8010bc0a80215bad
a20135c7722a200000000a0027210d35800
00020405b40402080a00002421000000000
1030305
Hex value of checksum 0x00000713
Part (e)
For restricting the attacker to get the access of the message transmitted between the node 3
and node 1 it is needed to be encrypted with the application of proper encryption algorithm
such as public key encryption. The use of digital signature and RSA algorithm for signing the
public key can reduce this type of risk.
Part (f)
The server would be able to identify the attack by analysing the data packets captured from
the network and it can be used for identifying the source of the attack and other details like
the MAC address and type of attack.
Cookie stealing attack can be used for gaining the access of the server and modify the data
with running malicious SQL codes.
Part (g)
Replay attacks are performed such that the identity of an authorized user by using the has or
password read from the session when an authorised user accesses a server. Thus the server
would be unaware of the attack. It can be prevented with tagging of session ID with the
encrypted component.
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