Lenovo ThinkPad BIOS SMI input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Lenovo ThinkPad BIOS. It has been classified as critical. Affected by this issue is some unknown functionality of the component SMI Handler. This manipulation causes input validation. This vulnerability is handled as CVE-2022-4574. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in Lenovo ThinkPad BIOS (unknown version). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component SMI Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An SMI handler input validation vulnerability in the BIOS of some ThinkPad models could allow an attacker with local access and elevated privileges to execute arbitrary code.  

The weakness was released 10/30/2023 by Yngweijw. It is possible to read the advisory at support.lenovo.com. This vulnerability is known as CVE-2022-4574 since 12/16/2022. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Lenovo Group Ltd.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/16/2022 🔍
10/30/2023 +318 days 🔍
10/30/2023 +0 days 🔍
11/22/2023 +23 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Researcher: Yngweijw
Status: Confirmed

CVE: CVE-2022-4574 (🔍)
GCVE (CVE): GCVE-0-2022-4574
GCVE (VulDB): GCVE-100-243871

Entryinfo

Created: 10/30/2023 15:51
Updated: 11/22/2023 09:30
Changes: 10/30/2023 15:51 (46), 11/22/2023 09:30 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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