Intel CPU flaw could enable hackers to attack PCs, cars, and medical devices

Vulnerability found in Pentium, Celeron, and Atom processors

Security researchers have discovered a bug in Intel CPUs that could enable a hacker with physical access to obtain enhanced privileges on the system.

According to a report by researchers at Positive Technologies, the problem exists in the Pentium, Celeron and Atom processors of the Apollo Lake, Gemini Lake and Gemini Lake Refresh platforms. These processors are used in both mobile devices and embedded systems, meaning everything from ultrabooks to Internet of Things (IoT) devices are affected.

Mark Ermolov, the security researcher at Positive Technologies who discovered the vulnerability alongside Dmitry Sklyarov (also from Positive Technologies) and Maxim Goryachy (an independent researcher), said one example of a real threat is lost or stolen laptops that contain confidential information in encrypted form.

“Using this vulnerability, an attacker can extract the encryption key and gain access to information within the laptop. The bug can also be exploited in targeted attacks across the supply chain. For example, an employee of an Intel processor-based device supplier could, in theory, extract the Intel CSME firmware key and deploy spyware that security software would not detect,” he said.

Ermolov added that the flaw vulnerability is also dangerous because it facilitates the extraction of the root encryption key used in Intel PTT (Platform Trust Technology) and Intel EPID (Enhanced Privacy ID) technologies in systems to protect digital content from illegal copying.

Related Resource

Why faster refresh cycles and modern infrastructure management are critical to business success

The connection between modern server infrastructure and business agility

Title of whitepaper on background of blue and grey trapezoids with a green line diagonally down the page Free download

“For example, a number of Amazon e-book models use Intel EPID-based protection for digital rights management. Using this vulnerability, an intruder might extract the root EPID key from a device (e-book), and then, having compromised Intel EPID technology, download electronic materials from providers in file form, copy and distribute them,” he said.

He added that the flaw is a debugging functionality with excessive privileges, which is not protected as it should be. To avoid problems in the future and prevent the possible bypassing of built-in protection, manufacturers should be more careful in their approach to security provision for debug mechanisms, according to the firm

The problem led to Intel issuing a security advisory. The flaw (CVE-2021-0146) is a high-severity privilege-escalation problem and is rated 7.1 out of 10 on the CVSS vulnerability severity scale.

“Hardware allows activation of test or debug logic at runtime for some Intel processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access,” said the advisory.

Users can fix the flaw by downloading and installing UEFI BIOS updates published by the end manufacturers of the respective electronic equipment (notebooks or other devices).

Featured Resources

2021 Thales cloud security study

The challenges of cloud data protection and access management in a hybrid and multi cloud world

Free download

IDC agility assessment

The competitive advantage in adaptability

Free Download

Digital transformation insights from CIOs for CIOs

Transformation pilotes, co-pilots, and engineers

Free download

What ITDMs did next - and what they should be doing now

Enable continued collaboration and communication for hybrid workers

Recommended

BitMart suspends withdrawals following hack
cryptocurrencies

BitMart suspends withdrawals following hack

6 Dec 2021
Bridging the DevSecOps divide: Spotlight on key relationships
Whitepaper

Bridging the DevSecOps divide: Spotlight on key relationships

3 Dec 2021
Planned Parenthood cyber attack exposes data of 400,000 patients
cyber attacks

Planned Parenthood cyber attack exposes data of 400,000 patients

3 Dec 2021
Bridging the DevSecOps divide: Spotlight on zero trust
Whitepaper

Bridging the DevSecOps divide: Spotlight on zero trust

3 Dec 2021

Most Popular

What should you really be asking about your remote access software?
Sponsored

What should you really be asking about your remote access software?

17 Nov 2021
What are the pros and cons of AI?
machine learning

What are the pros and cons of AI?

30 Nov 2021
How to move Microsoft's Windows 11 from a hard drive to an SSD
Microsoft Windows

How to move Microsoft's Windows 11 from a hard drive to an SSD

24 Nov 2021