Wi-Fi attacks refer to various techniques used to exploit vulnerabilities or weaknesses in wireless networks and devices connected to them. Using the ESP32 connected to Flipper Zero I will demonstrate two types of attacks.

Wi-Fi deauthentication is a technique used to disconnect or disrupt the wireless connection between a client device (such as a laptop, smartphone, or tablet) and a Wi-Fi network. It exploits a vulnerability in the Wi-Fi protocol, specifically the 802.11 standard, to send deauthentication frames to the target device. Performing a Wi-Fi deauthentication attack on a targeted access point (AP) involves specifically targeting a single AP for disruption.

The process is as follows:

1. Discover the target AP: identify the MAC address, SSID (network name), and channel of the AP you want to target
2. Craft and send deauthentication frames: Using the captured MAC address of the target AP, create deauthentication frames and send them to the AP. The frames should contain the broadcast address to target all clients connected to the AP.
3. Persist disconnection: send deauthentication frames at regular intervals

It's important to note that conducting Wi-Fi deauthentication attacks without proper authorization is illegal and unethical. Deauthentication attacks should only be performed for legitimate purposes, such as network security testing or troubleshooting, with the necessary permissions and within legal boundaries.

This is an inoffensive attack that consists of creating a few Wifi networks that use as SSID the lyrics of the “Never Gonna Give You Up” music.

1. Never gonna give you up
2. Never gonna let you down
3. Never gonna run around
4. and desert you
5. Never gonna make you cry
6. Never gonna say goodbye
7. Never gonna tell a lie
8. and hurt you

For This setup the ESP32-WROOM32 development board is used.

Flipper Zero is a versatile, open-source, and hacker-friendly gadget designed for various security and hacking purposes. It combines multiple functions into a single device, offering features such as hardware hacking, radio communication, signal analysis, and more.

Flipper Zero also benefits from GPIO pins that work at 3.3V but also tolerate 5V. The pinout is available below:

The application running on Flipper Zero is Wifi Marauder. This is a C application that is specifically designed to interface with Wifi Dev Board available for Flipper Zero that also is built using ESP32.

https://github.com/ClaraCrazy/Flipper-Xtreme/tree/main/applications/external/wifi_marauder_companion