Intel CPU UEFI Firmware untrusted pointer dereference

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.
7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Intel CPU. It has been rated as critical. This affects an unknown function of the component UEFI Firmware. The manipulation leads to untrusted pointer dereference. This vulnerability is documented as CVE-2023-42772. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Intel CPU (version unknown). This issue affects an unknown function of the component UEFI Firmware. The manipulation with an unknown input leads to a untrusted pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-822. The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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

It is possible to read the advisory at intel.com. The identification of this vulnerability is CVE-2023-42772 since 10/25/2023. The exploitation is known to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (intel): 🔍

CVSSv2info

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

Exploitinginfo

Class: Untrusted pointer dereference
CWE: CWE-822
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

10/25/2023 🔍
09/16/2024 +327 days 🔍
09/16/2024 +0 days 🔍
09/16/2024 +0 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01071
Status: Confirmed

CVE: CVE-2023-42772 (🔍)
GCVE (CVE): GCVE-0-2023-42772
GCVE (VulDB): GCVE-100-277571

Entryinfo

Created: 09/16/2024 20:13
Changes: 09/16/2024 20:13 (74)
Complete: 🔍
Cache ID: 216::103

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