Cyberattack Possible Without Special Equipment: What Does This Mean for Your SME?

New Attack Method Threatens Business Systems

Cybercriminals are constantly finding smarter ways to infiltrate your systems. Recent insights show that possessing special, physical equipment is no longer necessary to exploit certain software vulnerabilities. This presents a potential new risk for many businesses, including Small and Medium-sized Enterprises (SMEs).

Previously, many security experts believed that specific weaknesses in computer software, particularly within the core of the operating system (the 'kernel'), could only be exploited if the attacker also possessed the corresponding physical hardware. This hardware, such as specific cards or devices, acted as a kind of key needed to access the vulnerability.

However, the new research indicates this is not always the case. Attackers can now use methods to reach and exploit these vulnerabilities without needing to have the actual hardware in their possession. This significantly broadens the group of potential targets.

How Does This New Attack Method Work?

The core of this new approach lies in cleverly bypassing the normal controls within a computer system. Operating systems, like Windows, have built-in security layers to prevent normal programs (running from 'user mode') from making changes to the most critical part of the system (the 'kernel mode') without authorization.

Many software components, such as drivers that normally communicate with specific hardware, however, contain errors or 'vulnerabilities.' These flaws would enable attacks when the correct hardware is present. The new research has demonstrated that these vulnerabilities can also be reached without the hardware.

This is made possible because attackers can write programs that mimic normal interaction with the hardware, or by cleverly utilizing other, less secure parts of the system to still reach the vulnerable driver. They exploit the way the software is designed, not the physical connection.

These types of attacks are also referred to as 'Bring Your Own Vulnerable Driver' (BYOVD), but in a new, hardware-independent form. This means an attacker can leverage a vulnerable driver already installed on your system without needing to bring any special tools.

What Does This Mean for SME Businesses?

These developments have direct consequences for SMEs. Previously, one might have worried less about this specific type of technical vulnerability, considering it less accessible. Now that the hardware requirement is removed, every business with potentially vulnerable software faces an increased risk.

• Increased attack surface: More types of attacks become possible, making SMEs more attractive targets for cybercriminals.
• Necessity for current security: Your security software and systems must always be up-to-date to patch known vulnerabilities.
• Focus on software integrity: It's not just about the hardware you have, but also about precisely which software runs on your systems and how it is configured.
• Reducing complexity: It can be challenging for an SME to keep track of exactly what software is installed and the associated risks.

It is therefore crucial to be proactive. This not only means installing antivirus software but also carefully managing all software on your computers. Knowing which drivers and other system-level software are present, and ensuring they are up-to-date or removing unnecessary components, becomes even more important.

An additional point of attention is preventing the installation of unknown or untrusted software. Criminals may attempt to install vulnerable drivers themselves. A robust policy around software installations and user permissions is therefore essential.

Conclusion

The evolving nature of cyberattacks demands constant vigilance, including from SME businesses. The fact that vulnerable software components can now be exploited without specific hardware introduces a new and direct risk. It is essential to secure your systems properly through regular updates, monitoring installed software, and implementing strict procedures for software installations.

Invest in digital security to protect your business against these evolving threats.

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