VDB-228688 · CVE-2022-32766 · intel-sa-00777

Intel BIOS Firmware input validation

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.
7.1	$5k-$25k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Intel BIOS. This impacts an unknown function of the component Firmware Handler. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2022-32766. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in Intel BIOS (unknown version). It has been declared as critical. This vulnerability affects an unknown code block of the component Firmware 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. CVE summarizes:

Improper input validation for some Intel(R) BIOS firmware may allow a privileged user to potentially enable escalation of privilege via local access.

The weakness was presented 05/10/2023 as intel-sa-00777. The advisory is shared for download at intel.com. This vulnerability was named CVE-2022-32766 since 08/04/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/02/2023).

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

Intel

Name

BIOS

License

commercial

Website

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

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.4
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.2
CNA Vector (Intel Corporation): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

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

08/04/2022 🔍
05/10/2023 +279 days 🔍
05/10/2023 +0 days 🔍
06/02/2023 +23 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-00777
Status: Confirmed

CVE: CVE-2022-32766 (🔍)
GCVE (CVE): GCVE-0-2022-32766
GCVE (VulDB): GCVE-100-228688

Entryinfo

Created: 05/10/2023 19:43
Updated: 06/02/2023 19:08
Changes: 05/10/2023 19:43 (47), 06/02/2023 19:08 (11)
Complete: 🔍
Cache ID: 216::103