Python Multi-Port Network Exposure Lab

Overview

This lab demonstrates how a Python script can be transferred from a Kali Linux VM to a Linux Mint VM and executed to create multiple TCP listening ports.

The purpose was to understand how process execution can change a host's network exposure and increase its attack surface.

Lab Environment

• VM1 – Kali Linux: 192.168.10.11
• VM2 – Linux Mint: 192.168.20.11
• File: openPorts.py
• Transfer Method: HTTP

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1. Python Multi-Port Listener

openPorts.py was created using Python sockets and threading to establish multiple TCP listeners simultaneously.

The script was configured to listen on selected ports including:

3000, 3306, 4444, 5000, 5432, 8000, 8080, 8081, 8888, 9000, 9090, 9999, 10000

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2. HTTP File Transfer and Execution

Kali was configured as a temporary HTTP server to make openPorts.py available to VM2.

The transferred script was executed on Linux Mint

python3 -m http.server 8000

Linux Mint retrieved the script using:

curl -O http://192.168.10.11:8000/openPorts.py

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3. Verification

The listening ports were verified locally using nmap...