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ASSIGNMENT $5$

$30$ points

Code Assignment: Packet Sniffer and ARP Poisoning with Scapy

Objective: This assignment is designed to help you build foundational skills in network analysis

and attacks using Python and the Scapy library. You will create three scripts: two for sniffing

network packets and one for performing an ARP poisoning attack.

Tasks:

Part $1$: Building a Packet Sniffer

Simple Packet Sniffer:

Create a Python script $($basic$\_$sniffer.py$)$ that uses Scapy's sniff function to

capture and print details of all packets on the network.

Ensure that your script captures packets indefinitely or until manually stopped.

Email Sniffer:

Modify your packet sniffer script to capture only email$-$related traffic $($SMTP$,$

POP$3,$ IMAP$).$

Create a new script $($email$\_$sniffer.py$)$ that applies a Berkeley Packet Filter

$($BPF$)$ to capture packets on ports $110($POP$3),143($IMAP$),$ and $25($SMTP$).$

Print any captured email credentials $($USER and PASS commands$).$

Part $2$: Implementing ARP Poisoning

ARP Poisoning Attack:

Write a script $($arp$\_$poison.py$)$ to perform an ARP poisoning attack on a local

network.

The script should:

Poison the ARP cache of both the target machine and the gateway.

Intercept and display the network traffic of the victim.

Restore the ARP tables of the victim and the gateway after the attack is

stopped.

What need to turn$-$in:

Submit all Python scripts $($basic$\_$sniffer.py$,$ email$\_$sniffer.py$,$ arp$\_$poison.py$)$

with comments explaining the code logic $().$

Test each script and provide the outputs as a Word or PDF document. Ensure to label

your screenshots clearly $(9pts).$