Dell BIOS UEFI improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Dell BIOS. This affects an unknown function of the component UEFI. This manipulation causes improper authentication. This vulnerability is registered as CVE-2023-32453. It is feasible to perform the attack on the physical device. No exploit is available.

Detailsinfo

A vulnerability was found in Dell BIOS (version now known). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component UEFI. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Dell BIOS contains an improper authentication vulnerability. A malicious user with physical access to the system may potentially exploit this vulnerability in order to modify a security-critical UEFI variable without knowledge of the BIOS administrator.

The weakness was published 08/16/2023 as dsa-2023-190. It is possible to read the advisory at dell.com. This vulnerability is known as CVE-2023-32453 since 05/09/2023. 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.1

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.9
NVD Vector: 🔍

CNA Base Score: 4.6
CNA Vector (Dell): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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

05/09/2023 🔍
08/16/2023 +99 days 🔍
08/16/2023 +0 days 🔍
09/10/2023 +25 days 🔍

Sourcesinfo

Vendor: dell.com

Advisory: dsa-2023-190
Status: Confirmed

CVE: CVE-2023-32453 (🔍)
GCVE (CVE): GCVE-0-2023-32453
GCVE (VulDB): GCVE-100-237355

Entryinfo

Created: 08/16/2023 22:45
Updated: 09/10/2023 15:12
Changes: 08/16/2023 22:45 (48), 09/10/2023 15:12 (9)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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