Hardware Vulnerabilities - CompTIA Security+ SY0-701 - 2.3
Understanding IoT Security Risks
The Rise of Connected Devices
- Many devices in homes and offices are connected to local networks, including hardware that often lacks accessible operating systems.
- These devices, such as air conditioning controllers or time clocks, run on operating systems we cannot access, posing potential security risks.
- With the proliferation of Internet of Things (IoT) devices like smart stoves and refrigerators, security concerns have expanded beyond traditional computing devices.
- The internal operating system for these hardware devices is referred to as firmware; users typically lack knowledge about it.
- Only manufacturers can manage and update this firmware, which raises concerns about their commitment to IT security.
Manufacturer Response to Vulnerabilities
- A case study involves Trane Comfortlink II thermostats that had known vulnerabilities reported in April 2014 but received a patch only a year later.
- In contrast to typical software patches for Windows or Mac OS that are released within a month, these delays highlight significant security risks for users.
- Manufacturers may issue End Of Life (EOL) notices when they plan to stop selling a product; however, updates may still be available temporarily after this notice.
- Once a device reaches its End Of Service Life (EOSL), no further updates will be provided unless costly support options are pursued by customers.
- Users should consider replacing EOSL equipment promptly to maintain up-to-date security measures.
Legacy Systems and Risk Management
- Organizations with extensive infrastructures may have legacy devices running outdated software or middleware that could pose security threats.
- Evaluating the risk of continuing use versus the potential vulnerabilities is crucial for maintaining network integrity.
- Critical legacy applications might complicate replacement efforts; thus, mitigation strategies must be implemented while keeping them operational.