Easy Wi-Fi Hacking

RoadToOSCP
5 min readNov 25, 2023

Introduction:
Wi-Fi has become an integral part of our daily lives, enabling us to connect to the internet from anywhere, anytime. However, with the increasing popularity of Wi-Fi, there has been a surge in Wi-Fi hacking incidents. In this content, we will delve into the world of Wi-Fi hacking, understanding the risks involved, and exploring preventive measures to safeguard our networks.

Understanding Wi-Fi Connection:

The process of establishing a Wi-Fi connection between a wireless device and an access point (AP) is called the Wi-Fi handshake. This handshake involves several technical steps that ensure secure and reliable communication between the device and the AP. Here’s a detailed explanation of how the Wi-Fi handshake works:

1. Discovery Phase:
The first step in the Wi-Fi handshake is the discovery phase, where the device scans for available APs within range. The device sends out probe requests, which are broadcast packets that contain the SSID (Service Set Identifier) of the desired network. The AP responds to these requests with probe responses, which contain information about the network, such as its SSID, security settings, and capabilities.

2. Authentication Phase:
Once the device has identified an AP, it enters the authentication phase. During this phase, the device sends an authentication request to the AP, which contains its identity (MAC address) and any required credentials, such as a password or a pre-shared key (PSK). The AP verifies the credentials and responds with an authentication response, either granting or denying access to the network.

3. Association Phase:
After successful authentication, the device enters the association phase. During this phase, the device sends an association request to the AP, which contains information about its capabilities and preferences, such as its supported data rates and channel preferences. The AP responds with an association response, which establishes a logical connection between the device and the network.

Once the 4-way handshake completes, the client moves to the “network phase” of the connection to request a dynamic IP address

Above mentioned points are key intervening areas where Wi-Fi hacking takes place. There are several methods used by hackers to gain access to a Wi-Fi network, including:

1. Brute Force Attack: This involves guessing the password by trying different combinations until the correct one is found.
2. Man-in-the-Middle (MITM) Attack: This involves intercepting and stealing data transmitted between the user and the network.
3. Rogue Access Point (AP) Attack: This involves setting up a fake AP to trick users into connecting to it, allowing the attacker to gain access to their data.
4. Deauthentication Attack: This involves disconnecting legitimate users from the network, allowing the attacker to take over their devices.

But here in this article, we will be taking a different approach to hacking. We will be using the Wifi profile to hack into the network.

A Wi-Fi profile describes how to connect to your network. When you assign the profile to a user or device group, the group can automatically access your network from their devices. Profiles eliminate the need for students and teachers to manually connect to the network.

How this Wifi profile looks like, which you can export from your Windows machine using the command

netsh wlan export profile name=”<ProfileName> or SSID name” Key=clear Folder=”output folder path”

Highlighted the key points in a typical Wifi profile stored in windows

So if one can generate various profiles and keep them passing to the network interface card of the computer then the rest of thing OS can handle them.

So what we can do to generate a Wi-Fi profile and send the same to OS, the module that could help us is pyWifi module of python

A sample code given there will give you an understanding of how powerful this module is highlighted with ** where it has shown how one can add a profile of its choice to OS.

import pywifi

wifi = pywifi.PyWiFi()

iface = wifi.interfaces()[0]

iface.disconnect()
time.sleep(1)
assert iface.status() in\
[const.IFACE_DISCONNECTED, const.IFACE_INACTIVE]

profile = pywifi.Profile()
profile.ssid = 'testap'
profile.auth = const.AUTH_ALG_OPEN
profile.akm.append(const.AKM_TYPE_WPA2PSK)
profile.cipher = const.CIPHER_TYPE_CCMP
profile.key = '12345678'

iface.remove_all_network_profiles()
***tmp_profile = iface.add_network_profile(profile)*** important portion of code

iface.connect(tmp_profile)
time.sleep(30)
assert iface.status() == const.IFACE_CONNECTED

iface.disconnect()
time.sleep(1)
assert iface.status() in\
[const.IFACE_DISCONNECTED, const.IFACE_INACTIVE]

The risks involved in Wi-Fi hacking are numerous and can have severe consequences. Some of these risks include:

1. Data Theft: Hackers can steal sensitive data such as passwords, bank details, and personal information through Wi-Fi hacking.
2. Identity Theft: Hackers can use stolen data to impersonate users, causing financial losses and reputational damage.
3. Network Disruption: Hackers can disrupt network operations by launching denial-of-service (DoS) attacks or crashing APs.
4. Malware Infection: Hackers can infect devices connected to the network with malware, causing damage or stealing data.
5. Privacy Violation: Hackers can monitor user activity and collect personal information without their consent, violating their privacy rights.

Section 3: Preventive Measures for Wi-Fi Security
To prevent Wi-Fi hacking incidents, there are several preventive measures that individuals and organizations can take, including:

1. Strong Passwords: Use strong passwords that are difficult to guess or crack using brute force attacks. Change passwords regularly and avoid using easily guessed passwords such as “password” or “123456”.
2. Encryption: Use encryption protocols such as WPA2 or WPA3 to secure wireless transmissions and prevent unauthorized access to data.
3. Network Segmentation: Segment networks into smaller subnetworks to limit access and prevent attackers from gaining access to sensitive data or systems.
4. Firewall Protection: Use firewalls to block unauthorized access to networks and prevent malicious traffic from entering the network.
5. Regular Security Updates: Keep software and firmware up-to-date with security patches and updates to address known vulnerabilities and prevent exploitation by attackers.
6. Access Controls: Implement access controls such as MAC address filtering or role-based access control (RBAC) to restrict access to authorized users only.
7. Physical Security Measures: Secure APs physically by placing them in secure locations, using lockable enclosures or cages, and limiting physical access to sensitive areas of the network infrastructure.
8. Employee Training and Awareness Programs: Train employees on best practices for Wi-Fi security, including password hygiene, secure browsing habits, and avoiding suspicious emails or messages that may contain phishing links or malware attachments.
9. Regular Security Audits: Conduct regular security audits of networks and devices connected to them to identify vulnerabilities and address them before they can be exploited by attackers.

Complete Demo you can find here

Hope you would enjoy the journey. But please make sure that you don't use the knowledge to perform unauthorized work.

happy hacking

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