IoT Security Vulnerabilities

What is IoT Security?

IoT security addresses vulnerabilities in the Internet of Things ecosystem — network-connected devices from smart home gadgets to industrial sensors. IoT devices typically run embedded firmware with limited computational resources, making security challenging.

How Does it Work?

IoT devices face unique challenges: constrained hardware limits cryptographic capabilities, firmware updates may be infrequent or impossible, many devices ship with default credentials, and physical access may enable hardware-level attacks. Binary analysis is essential since manufacturers rarely provide source code.

# Common IoT Security Assessment Checks

# 1. Scan for devices with default credentials
nmap -sV --script http-default-accounts 192.168.1.0/24

# 2. Check for unencrypted protocols
tcpdump -i eth0 'port 80 or port 23 or port 21' -w capture.pcap

# 3. Extract and analyze firmware
binwalk -e device_firmware.bin
strings firmware.bin | grep -i "admin\|password\|root"

# 4. Check for hardcoded certificates
find extracted_fs/ -name "*.pem" -o -name "*.key" -o -name "*.crt"

Real-World Examples

The Mirai botnet (2016) recruited 600,000 IoT devices using default credentials, launching 1.2 Tbps DDoS attacks. Ring doorbell vulnerabilities exposed customer video feeds. Medical IoT devices have been found with hardcoded admin passwords.

Security Impact

IoT vulnerabilities enable botnet recruitment, privacy violations, physical safety risks, network pivoting, data theft, and denial of service. An estimated 75 billion IoT devices will be deployed by 2030.

Prevention & Mitigation

Change default credentials. Implement secure boot. Use encrypted communications. Perform regular firmware updates. Apply network segmentation. Conduct binary analysis of all firmware. Follow ETSI EN 303 645 baseline requirements.

How Precogs AI Stops IoT Security Issues

Precogs AI Binary SAST analyzes IoT firmware for hardcoded credentials, buffer overflows, insecure protocols, and weak cryptography — the most common vulnerability types in connected devices — without requiring vendor source code.