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Home > Hardware > New flaw found in all Intel processors released in the past 5 years

New flaw found in all Intel processors released in the past 5 years

Researchers at Positive Technologies announced that they have found an unpatchable flow that affects all Intel CPUs released in the last 5 years.

Erdem Yasar by Erdem Yasar
March 6, 2020
in Cybersecurity, Hardware
2 min read
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New flaw found in all Intel processors released in the past 5 years
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Researchers at Positive Technologies announced a new vulnerability has been found in the ROM of the Intel Converged Security and Management Engine (CSME). Researchers also claim that it is impossible to fix firmware errors because that is hard-coded in the Mask ROM of microprocessors and chipsets. The flaw allows a compromise at the hardware level, thus the chain of trust is completely ineffective against the attacks those target this vulnerability. The vulnerability is tracked as CVE-2019-0090.

Vulnerability is present in both hardware and the firmware

Researchers also discovered an error in Intel CSME firmware at the very early stages of the subsystem’s operation, in its boot ROM. In Intel-based systems, Intel CSME is responsible for the initial authentication. Attackers can exploit this flaw to extract data from encrypted hard-drives and bypass the DRM protections. All Intel chipsets and SoCs are affected by the vulnerability, except generation 10.

Positive Technologies also noted,

“Intel CSME firmware at the very early stages of the subsystem’s operation, in its boot ROM. Unfortunately, no security system is perfect. Like all security architectures, Intel’s had a weakness: the boot ROM, in this case. An early-stage vulnerability in ROM enables control over reading of the Chipset Key and generation of all other encryption keys. One of these keys is for the Integrity Control Value Blob (ICVB). With this key, attackers can forge the code of any Intel CSME firmware module in a way that authenticity checks cannot detect. This is functionally equivalent to a breach of the private key for the Intel CSME firmware digital signature, but limited to a specific platform.”

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Tags: IntelVulnerability
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Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7 News. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7 News, Erdem was the managing editor of T3 Magazine.

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