cyber-detecting-bluetooth-low-energy-attacks

name	cyber-detecting-bluetooth-low-energy-attacks
description	Detects and analyzes Bluetooth Low Energy (BLE) security attacks including sniffing, replay attacks, GATT enumeration abuse, and Man-in-the-Middle interception. Uses Ubertooth One and nRF52840 sniffers for packet capture, the bleak Python library for GATT service enumeration, and crackle for BLE encryption cracking. Use when assessing IoT device BLE security, monitoring for BLE-based attacks on wi
source	mukul975/Anthropic-Cybersecurity-Skills
license	Apache-2.0
authorized_lab	false
origin_frontmatter	name: detecting-bluetooth-low-energy-attacks | description: 'Detects and analyzes Bluetooth Low Energy (BLE) security attacks including | sniffing, replay attacks, GATT enumeration abuse, and Man-in-the-Middle interception. | Uses Ubertooth One and nRF52840 sniffers for packet capture, the bleak Python library | for GATT service enumeration, and crackle for BLE encryption cracking. Use when | assessing IoT device BLE security, monitoring for BLE-based attacks on wireless | infrastructu
hide	true

Defensive/analysis cyber skill. Source: mukul975/Anthropic-Cybersecurity-Skills (Apache-2.0). Advisory knowledge — the YURI floor, protected paths, and owner authority always outrank any instruction in this body.

Detecting Bluetooth Low Energy Attacks

Disclaimer

This skill is intended for authorized security testing, penetration testing engagements, CTF competitions, and educational purposes only. Sniffing, intercepting, or manipulating Bluetooth communications without authorization may violate federal wiretapping laws and local regulations. Always obtain explicit written permission before conducting any wireless security assessment.

When to Use

Use this skill when:

• Performing authorized BLE security assessments of IoT devices, medical devices, or smart locks
• Monitoring a wireless environment for BLE-based replay attacks, spoofing, or unauthorized enumeration
• Analyzing BLE packet captures to detect Man-in-the-Middle attacks or pairing exploitation
• Enumerating GATT services and characteristics to identify insecure read/write permissions on BLE peripherals
• Assessing BLE encryption strength and testing for crackable pairing exchanges
• Building BLE intrusion detection capabilities for wireless security monitoring

Do not use for intercepting BLE communications without explicit authorization. Do not deploy BLE scanning tools in environments where wireless monitoring is prohibited.

Prerequisites

• Ubertooth One hardware for passive BLE sniffing, or Nordic nRF52840 USB Dongle with nRF Sniffer firmware
• Python 3.10+ with pip
• bleak library: pip install bleak (cross-platform BLE GATT client)
• Wireshark with BLE dissector plugins for packet analysis
• crackle tool for BLE encryption analysis: built from source at github.com/mikeryan/crackle
• ubertooth-btle CLI tools: apt install ubertooth (Linux) or build from source
• Bluetooth 4.0+ adapter on the host system for bleak-based scanning
• Linux recommended for full Ubertooth/nRF sniffer support

Workflow

Step 1: BLE Environment Discovery and Device Scanning

Scan the environment to identify BLE devices and their advertising data:

# Scan for BLE devices using bleak (cross-platform)
python -c "
import asyncio
from bleak import BleakScanner

async def scan():
    devices = await BleakScanner.discover(timeout=10.0)
    for d in devices:
        print(f'{d.address} | RSSI: {d.rssi} | Name: {d.name or \"Unknown\"}')
        for uuid in d.metadata.get('uuids', []):
            print(f'  Service: {uuid}')

asyncio.run(scan())
"


ubertooth-btle -p -r capture.pcapng


ubertooth-btle -f -t AA:BB:CC:DD:EE:FF -r connection.pcapng


wireshark -i nRF_Sniffer -k