Intel CPU UEFI Firmware null pointer dereference

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 (≈)
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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.
5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Intel CPU and classified as problematic. Impacted is an unknown function of the component UEFI Firmware. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2023-23904. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Intel CPU (the affected version is unknown). It has been rated as problematic. Affected by this issue is an unknown code of the component UEFI Firmware. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-395. Catching NullPointerException should not be used as an alternative to programmatic checks to prevent dereferencing a null pointer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

NULL pointer dereference in the UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

The advisory is shared for download at intel.com. This vulnerability is handled as CVE-2023-23904 since 02/17/2023. The exploitation is known to be difficult. The attack needs to be approached locally. Additional levels of successful authentication are necessary for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (intel): 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-395
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

02/17/2023 🔍
09/16/2024 +576 days 🔍
09/16/2024 +0 days 🔍
09/16/2024 +0 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01071
Status: Confirmed

CVE: CVE-2023-23904 (🔍)
GCVE (CVE): GCVE-0-2023-23904
GCVE (VulDB): GCVE-100-277568

Entryinfo

Created: 09/16/2024 20:12
Changes: 09/16/2024 20:12 (74)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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