Acer Notebook HQSwSmiDxe Driver default permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Acer Notebook and classified as critical. Affected by this vulnerability is an unknown functionality of the component HQSwSmiDxe Driver. Executing a manipulation can lead to default permission. This vulnerability is handled as CVE-2022-4020. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Acer Notebook (the affected version is unknown) and classified as critical. This vulnerability affects an unknown code of the component HQSwSmiDxe Driver. The manipulation with an unknown input leads to a default permission vulnerability. The CWE definition for the vulnerability is CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.

The weakness was released 11/28/2022. The advisory is shared for download at community.acer.com. This vulnerability was named CVE-2022-4020 since 11/16/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1222.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.7

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

NVD Base Score: 8.2
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector (ESET): 🔍

CVSSv2info

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

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
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

11/16/2022 🔍
11/28/2022 +12 days 🔍
11/28/2022 +0 days 🔍
12/23/2022 +25 days 🔍

Sourcesinfo

Advisory: community.acer.com
Status: Confirmed

CVE: CVE-2022-4020 (🔍)
GCVE (CVE): GCVE-0-2022-4020
GCVE (VulDB): GCVE-100-214456

Entryinfo

Created: 11/28/2022 16:57
Updated: 12/23/2022 19:11
Changes: 11/28/2022 16:57 (47), 12/23/2022 19:11 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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