Intel CPU UEFI Firmware Error input validation

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.
6.9$5k-$25k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Intel CPU. Affected is an unknown function of the component UEFI Firmware Error Handler. This manipulation causes input validation. This vulnerability appears as CVE-2024-21829. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in Intel CPU (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality of the component UEFI Firmware Error 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. The summary by CVE is:

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

The advisory is shared at intel.com. This vulnerability is known as CVE-2024-21829 since 01/02/2024. The exploitation appears to be difficult. An attack has to be approached locally. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/16/2024).

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

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

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

CNA Base Score: 7.5
CNA Vector (intel): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/02/2024 🔍
09/16/2024 +257 days 🔍
09/16/2024 +0 days 🔍
09/16/2024 +0 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01071
Status: Confirmed

CVE: CVE-2024-21829 (🔍)
GCVE (CVE): GCVE-0-2024-21829
GCVE (VulDB): GCVE-100-277573

Entryinfo

Created: 09/16/2024 20:14
Changes: 09/16/2024 20:14 (74)
Complete: 🔍
Cache ID: 216::103

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