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Service 03

IoT DEVICE
SECURITY AUDIT

The most thorough IoT security assessment available - covering hardware, firmware, network communications, and cloud APIs. We find what automated scanners and software-only firms cannot reach.

What's Included
FULL AUDIT SCOPE

Our IoT Device Security Audit covers every layer of the attack surface - from the physical chip to the cloud backend. Every test is performed manually by a specialist, not an automated scanner.

Hardware Interface Analysis
Identification and exploitation of UART, JTAG, SPI, I2C, and USB debug interfaces. Pin-mapping, baud rate detection, and console access attempts.
Firmware Extraction & Analysis
Firmware acquisition via hardware interfaces or flash chip reading. Static analysis for hardcoded credentials, crypto keys, dangerous functions, and exposed services.
Network Traffic Analysis
MITM interception of device-to-cloud communications. Protocol identification, encryption assessment, injection testing, and replay attack evaluation.
Binary Reverse Engineering
Disassembly and decompilation of firmware binaries. Identification of authentication logic, cryptographic implementations, and command injection points.
API & Cloud Backend Testing
Authentication testing, authorisation bypass, API endpoint enumeration, insecure direct object references, and data exposure analysis on companion cloud services.
Wireless Protocol Testing
WiFi, BLE, Zigbee, and Z-Wave security assessment. Pairing attack vectors, replay attacks, and protocol-level vulnerabilities.
Fuzzing & Input Validation Testing
Automated and manual fuzzing of exposed services, APIs, and communication interfaces - identifying crashes, unexpected behaviour, and input handling vulnerabilities that standard manual testing alone may not surface.
Web Management Interface Pentesting
Full penetration testing of device-hosted web interfaces - authentication bypass, session management flaws, CSRF, XSS, command injection, and privilege escalation within the device's own management portal.
Emulation & Automated Vulnerability Scanning
Full-fledged automated testing and deep vulnerability scanning using an emulated device environment - replicating the target firmware and services in a controlled virtual instance to run exhaustive, high-speed test suites that surface vulnerabilities with zero risk of damaging physical hardware and no gap left unchecked.
Methodology
HOW WE WORK
01
Reconnaissance & Device Profiling
Physical inspection, FCC ID lookup, chip identification, OS fingerprinting, open port scanning, and attack surface mapping before any active testing begins.
02
Hardware Attack Surface Testing
Systematic probing of all physical interfaces. UART identification with multimeter, JTAG chain detection via boundary scan, SPI/I2C bus monitoring.
03
Firmware Acquisition & Static Analysis
Firmware extracted via identified hardware interface or web update mechanism. Binwalk unpacking, string analysis, entropy mapping, and manual binary review.
04
Dynamic Testing & Traffic Interception
Device operated in a controlled test environment. All network traffic captured and analysed. Active fuzzing of exposed services and API endpoints.
05
Exploitation & Impact Validation
Vulnerabilities are exploited to confirm severity and document realistic attack chains. Every finding in the report has been verified - no theoretical risks.
06
Reporting & Remediation Guidance
CVSS-scored report with executive summary, detailed technical findings, attack chain diagrams, and prioritised remediation roadmap.
Common Findings
WHAT WE TYPICALLY DISCOVER

These are the most common vulnerability classes we encounter across IoT device audits:

Hardcoded credentials in firmware (/etc/passwd, config files)CRITICAL
Stack/heap buffer overflow in firmware binary parsers - direct RCE candidateCRITICAL
Unsigned or improperly verified firmware update mechanism - arbitrary code execution via malicious updateCRITICAL
Unauthenticated firmware update endpoint - no credentials required to flash arbitrary firmware over the networkCRITICAL
UART / JTAG debug interface active in production buildCRITICAL
Command injection via web management interface input parametersCRITICAL
Shared cryptographic keys across all units of a modelCRITICAL
Use-after-free in embedded HTTP server or protocol handlerHIGH
Integer overflow in network packet parsing routinesHIGH
Unencrypted device-to-cloud communication (HTTP, MQTT)HIGH
Format string vulnerability in logging or diagnostic functionsHIGH
Insecure Direct Object Reference (IDOR) in cloud companion APIHIGH
BLE replay attacks due to missing nonce/timestamp validationHIGH
Race condition in privilege-sensitive firmware operationsHIGH
Authentication bypass in web management interfaceHIGH
Outdated / end-of-life OS and library versions with known CVEsMEDIUM
Unnecessary services running in production (Telnet, FTP, SNMP)MEDIUM
Verbose error messages leaking firmware version and stack tracesMEDIUM
Insecure default configuration with no enforced hardening baselineMEDIUM
Report Deliverables
WHAT YOU RECEIVE
Executive Summary
One-page risk overview suitable for management and board-level audiences. Risk posture, key findings, and recommended actions.
Full Technical Report
Every finding documented with: description, evidence (screenshots/code), CVSS score, business impact, and step-by-step remediation guidance.
Attack Chain Diagrams
Visual representation of how discovered vulnerabilities can be chained by an attacker to achieve full compromise.
Prioritised Remediation Roadmap
Findings ranked by risk and fix effort. A practical action plan your engineering team can execute in order of priority.
Debrief Call
60-minute walkthrough of all findings with your technical team. Q&A, remediation clarification, and priority discussion.
30-Day Remediation Support
Email and call access to the lead auditor for 30 days post-delivery to answer follow-up questions on any finding.
Good Candidates
WHO THIS SERVICE IS FOR
IoT product manufacturers preparing for launch or certification
OEMs integrating third-party connected hardware into their ecosystem
Enterprises deploying IoT devices at scale across facilities or field operations
Medical device manufacturers with connected product lines
Smart home and consumer electronics brands with cloud-connected devices
Teams responding to a suspected compromise or customer-reported vulnerability

Find the vulnerabilities in your IoT device before attackers do.

Start with a free 30-minute call. We'll assess your device's attack surface, outline what an audit covers, and give you a clear scope and quote - no commitment required.

Request an Audit