Privilege escalation in some Intel Processors

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU48596

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-0599

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local administrator to escalate privileges on the system.

The vulnerability exists due to improper access control in the PMC, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Intel Pentium Processor J Series: All versions

Intel Pentium Processor N Series: All versions

Intel Celeron Processor J Series: All versions

Intel Celeron Processor N Series: All versions

Intel Atom Processor A Series: All versions

Intel Atom Processor E3900 Series: All versions

CPE2.3

• cpe:2.3:h:intel:intel_pentium_processor_j_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_pentium_processor_n_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_celeron_processor_j_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_celeron_processor_n_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_atom_processor_a_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:intel:intel_atom_processor_e3900_series:*:*:*:*:*:*:*:*

External links

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00360

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.