#VU79460 Race condition in Intel NUC BIOS firmware - CVE-2023-34438

Vulnerability identifier: #VU79460

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-34438

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel NUC BIOS firmware
Hardware solutions / Firmware

Vendor: Intel

Description

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

The vulnerability exists due to a race condition. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel NUC BIOS firmware: All versions

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00917.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.