performing-iot-security-assessment

name	performing-iot-security-assessment
description	Performs comprehensive security assessments of IoT devices and their ecosystems by testing hardware interfaces, firmware, network communications, cloud APIs, and companion mobile applications. The tester uses firmware extraction and analysis, hardware debugging via UART and JTAG, network protocol analysis, and runtime exploitation to identify vulnerabilities across all layers of the IoT stack. Use when working with performing iot security assessment.
domain	cybersecurity
tags	["IoT-security","firmware-analysis","embedded-systems","hardware-hacking","UART-JTAG"]
subdomain	penetration-testing
version	1.0.0
author	oyi77
license	Apache-2.0
nist_csf	["ID.RA-01","ID.RA-06","GV.OV-02","DE.AE-07"]

Performing Iot Security Assessment

Overview

Cybersecurity skill for performing iot security assessment. Follows industry best practices and security standards.

When to Use

Trigger phrases:

• "performing iot security assessment"

• "Performs comprehensive security assessments of IoT devices and their ecosystems "

• Evaluating the security of IoT devices before deployment in enterprise or critical infrastructure environments

• Assessing consumer IoT products for security vulnerabilities as part of product security review or certification

• Testing industrial IoT (IIoT) devices for vulnerabilities that could affect operational technology environments

• Analyzing firmware for backdoors, hardcoded credentials, and known vulnerabilities in embedded components

• Evaluating the security of the complete IoT ecosystem including device, cloud backend, and mobile companion app

Do not use against IoT devices without written authorization, for modifying firmware on devices you do not own, or against medical devices or safety-critical systems without specific medical device testing authorization and safety protocols.

When NOT to Use

• When you lack proper authorization for testing
• For production systems without change management
• When the task requires legal or compliance expertise beyond technical scope

Prerequisites

• Physical access to the target IoT device(s) for hardware analysis and testing
• Hardware tools: USB-to-UART adapter (FTDI), Bus Pirate, logic analyzer, JTAG debugger (Segger J-Link), SPI flash programmer (CH341A)
• Firmware analysis tools: Binwalk, Firmwalker, Firmware Analysis Toolkit (FAT), Ghidra, QEMU for emulation
• Network analysis: Wireshark, tcpdump, Bluetooth tools (Ubertooth, nRF Connect), Zigbee tools (KillerBee)
• Soldering equipment for accessing hardware debug points if needed

Workflow

# Example: IOC detection
import re

IOC_PATTERNS = {
    "ip": r"\b(?:\d{1,3}\.){3}\d{1,3}\b",
    "domain": r"\b[a-z0-9-]+\.[a-z]{2,}\b",
    "hash_md5": r"\b[a-f0-9]{32}\b",
    "hash_sha256": ,
}

 () -> :
     {k: re.findall(v, text)  k, v  IOC_PATTERNS.items()}