describes a vulnerability in the way Windows handles SSIDs (Service Set Identifiers) in WiFi networks. Windows can manage SSIDs up to 512 bytes long, which exceeds the WiFi standard. By sending chunked frames to increase the SSID size beyond 512 bytes, a buffer overflow can be triggered. This exploit leverages this vulnerability to cause a buffer overflow by creating and sending WiFi beacon frames with oversized SSID fields.
The script imports necessary modules from Scapy and the system module.
The create_wifi_packet function breaks the provided SSID into chunks of 255 bytes each (the maximum length allowed per chunk).
For each chunk, a WiFi beacon frame is created.
Dot11 header for specifying the frame type and addresses. Dot11Beacon to indicate a beacon frame. Dot11Elt to embed the SSID chunk.
Each frame is sent using the sendp function with specific parameters for interface, count, interval, and verbosity.
The script checks for permission errors and other exceptions during packet sending. Buffer Overflow Mechanism Windows handles SSIDs up to 512 bytes, which is above the WiFi standard. By sending SSID chunks that exceed this limit, a buffer overflow can be triggered in the Windows WiFi handling subsystem. This overflow can potentially allow an attacker to execute arbitrary code or cause a system crash.
The script requires root privileges to send packets. Ensure you run the script with sudo.
The script assumes the wireless interface is wlan0. Adjust this if your interface has a different name.
Ensure Scapy and its dependencies are properly installed. Handle permissions for accessing the network interface.
Using this script to exploit the vulnerability on unauthorized networks is illegal and unethical. Use it only for authorized security testing and research purposes. Disclaimer This code is provided for educational purposes only. The author is not responsible for any damage caused by the misuse of this script. Use responsibly and only in environments where you have explicit permission to perform such testing.