Vulnerability identifier: #VU73731

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48183

CWE-ID: CWE-254

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ThinkPad T14s Gen 3 21BR 21BS
Hardware solutions / Firmware
ThinkPad X13 Gen 3 21BN 21BQ
Hardware solutions / Firmware
ThinkPad T14s Gen 3 21CQ 21CR
Hardware solutions / Firmware
ThinkPad X13 Gen 3 21CM 21CN
Hardware solutions / Firmware

Vendor: Lenovo

Description

The vulnerability allows an attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in the BIOS tamper detection mechanism. A local user can bypass implemented security restrictions and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ThinkPad T14s Gen 3 21BR 21BS: All versions

ThinkPad X13 Gen 3 21BN 21BQ: All versions

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External links
http://support.lenovo.com/us/en/product_security/LEN-106014

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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.