Monday, December 5, 2022
HomeCyber Security BlogCyber Knowledge-baseHOW IS YOUR CPU EXPOSED TO CYBER-ATTACKS?





CPUs are exposed to cyber-attacks in several ways. One way is through vulnerabilities in the CPU itself. Another way is through vulnerabilities in the software that runs on the CPU.

They handle all the instructions you give your computer, and they carry out the tasks that make your programs work. But did you know that CPUs are also vulnerable to cyber-attacks? In this article, we’ll take a look at how hackers target CPUs and what you can do to protect your CPU from being attacked.

Security holes in CPUs

The Central Processing Unit (CPU) is the heart of any computer, and it is responsible for handling all the major operations of the system. As such, it is a prime target for hackers and cybercriminals, who can exploit security holes in CPUs to gain access to sensitive information or take control of the system entirely.

That’s because there have been several instances where hackers have been able to exploit security holes in CPUs to gain access to computers and networks. In some cases, they’ve even been able to create “malicious hardware” that can secretly insert code into a CPU’s instruction stream to take control of the machine.

Thankfully, most of these attacks have been against servers and other high-profile targets. But it’s still a good idea to be aware of the risks and to keep your own computer’s CPU up-to-date with the latest security patches.

One popular method is known as a buffer overflow attack, which takes advantage of vulnerabilities in the way that data is processed by the CPU. This type of attack can allow hackers to inject malicious code into a system, which can then be used to take over the machine or steal sensitive information.

Another common attack vector is through so-called “logic bombs”, which are malicious pieces of code that are designed to trigger when certain conditions are met. For example, a logic bomb could be programmed to delete all the files on a system if the wrong password is entered three times. Logic bombs can be incredibly difficult to spot and remove once they have been planted on a system, making them a serious threat to both businesses and individuals. Fortunately, some steps can be taken to protect against these types of attacks.

Meltdown Vulnerability

A recently discovered vulnerability would allow attackers to get your private data from your computer by exploiting the Microprocessors in it. The vulnerability, which is called Meltdown, could give root access to anything that runs on affected machines. That includes the RAM and all of its contents as well as anything stored in the computer’s memory until RAM is switched off or wiped. Researchers have developed a power-analysis attack that can extract information from chips that consume more electricity, differentiating it as a side-channel exploit.

It was discovered that dynamic voltage and frequency scaling, as found in every modern CPU, gives attackers the ability to measure power consumption based on the time it takes for a server to respond. This means that power side-channel attacks are now much simpler timing attacks. Running these types of attacks can reveal unexpected behaviors in a system. It might bring about poor performance, unresponsiveness, or instability.

CPU attacks allow systems to keep operating reliably when certain parameters are too much for them to handle. The CPU as a resource is not always predictable, so testing with CPU attacks can help guard against unexpected spikes in utilization or insufficient capacities. When a CPU attack is activated, the computer’s CPU gets used up and overworked.

Monitor computer hardware performance

To reduce the chance of an unintended or unexpected side-effect, start small and then gradually increase the experiment size. Your objective may determine how stressed out the CPU should be. If you want to test your systems as a whole, it makes sense to consume as much of their CPU as possible.

By running these experiments and tracking what you find, you can demonstrate to the rest of your team the benefits of artificial intelligence. For example, to start with a low CPU usage like 10-20%, you will input the speed percentage in the Capacity box. Afterward, you’ll select how many cores to use or select All Cores.

For example, malicious websites can install malware onto your system if you visit them. Or, you might download a piece of malicious software disguised as something else, like a game or a utility program.

It might delete important files, encrypt your data so you can’t access it, or even spy on you by turning on your webcam or microphone without your knowledge. In some cases, malware can even damage your CPU so badly that it becomes unusable. Fortunately, there are steps you can take to protect yourself from these sorts of attacks.

  • Ensuring that apps and services are always running with limited CPU resources
  • We want to make sure your team can detect periods of high utilization and notify when necessary.
  • With high traffic events in mind, we want to make sure any system has stability and resiliency.
  • Experience the same cloud conditions you would find when migrating to AWS so that we can streamline the migration process by simulating it.

Unfortunately, as our dependence on technology has grown, so have the threats to our personal and financial information. Many times, malware is unknowingly installed by the user when they click on a malicious link or download a contaminated file. Once installed, malware can encrypt files and demand a ransom for the decryption key, hijack your device or account for use in a botnet attack, collect sensitive information like login credentials and banking information, and more.