Intel CPU BIOS Authenticated Code access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Intel CPU and classified as critical. This issue affects some unknown processing of the component BIOS Authenticated Code Module. Performing a manipulation results in access control. This vulnerability is reported as CVE-2021-33123. The attack requires a local approach. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Intel CPU (Chip Software) (the affected version unknown). It has been classified as critical. This affects an unknown part of the component BIOS Authenticated Code Module. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 05/13/2022 as intel-sa-00601. The advisory is shared at intel.com. This vulnerability is uniquely identified as CVE-2021-33123 since 05/18/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/18/2021 🔍
05/13/2022 +360 days 🔍
05/13/2022 +0 days 🔍
05/16/2022 +3 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-00601
Status: Confirmed

CVE: CVE-2021-33123 (🔍)
GCVE (CVE): GCVE-0-2021-33123
GCVE (VulDB): GCVE-100-199797

Entryinfo

Created: 05/13/2022 11:31
Updated: 05/16/2022 07:53
Changes: 05/13/2022 11:31 (39), 05/16/2022 07:53 (1)
Complete: 🔍
Cache ID: 216::103

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