#VU63178 Unintended proxy or intermediary in Intel products - CVE-2021-33103

Vulnerability identifier: #VU63178

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-33103

CWE-ID: CWE-441

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Rocket Lake Xeon
Hardware solutions / Other hardware appliances
10th Generation Intel Core Processors
Hardware solutions / Firmware
11th Generation Intel Core Processors
Hardware solutions / Firmware
9th Generation Intel Core Processors
Client/Desktop applications / Web browsers

Vendor: Intel

Description

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

The vulnerability exists due to presence of an unintended proxy in the BIOS authenticated code module. A local user can execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rocket Lake Xeon: All versions

10th Generation Intel Core Processors: All versions

9th Generation Intel Core Processors: All versions

11th Generation Intel Core Processors: All versions

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00601.html

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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.