VDB-236950 · CVE-2023-34438 · intel-sa-00917

Intel NUC BIOS Firmware race condition

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Intel NUC. Affected is an unknown function of the component BIOS Firmware. Executing a manipulation can lead to race condition. This vulnerability is registered as CVE-2023-34438. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Intel NUC (version unknown). It has been declared as problematic. This vulnerability affects an unknown function of the component BIOS Firmware. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Race condition in some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable escalation of privilege via local access.

The weakness was published 08/11/2023 as intel-sa-00917. The advisory is available at intel.com. This vulnerability was named CVE-2023-34438 since 06/09/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/08/2023).

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

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Productinfo

Vendor

Intel

Name

License

commercial

Website

Vendor: https://www.intel.com/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.5
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Intel Corporation): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/09/2023 🔍
08/11/2023 +63 days 🔍
08/11/2023 +0 days 🔍
09/08/2023 +28 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-00917
Status: Confirmed

CVE: CVE-2023-34438 (🔍)
GCVE (CVE): GCVE-0-2023-34438
GCVE (VulDB): GCVE-100-236950

Entryinfo

Created: 08/11/2023 09:35
Updated: 09/08/2023 09:01
Changes: 08/11/2023 09:35 (37), 09/08/2023 09:01 (21)
Complete: 🔍
Cache ID: 216::103