Phoenix SecureCore Technology 4 prior 4.3.0.203/4.3.1.163/4.4.0.217/4.5.0.138 SPI Flash access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Phoenix SecureCore Technology 4. Affected by this issue is some unknown functionality of the component SPI Flash Handler. Performing a manipulation results in access control. This vulnerability was named CVE-2023-31100. The attack needs to be approached locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Phoenix SecureCore Technology 4. This affects some unknown processing of the component SPI Flash Handler. 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 summary by CVE is:

Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4: * from 4.3.0.0 before 4.3.0.203 * from 4.3.1.0 before 4.3.1.163 * from 4.4.0.0 before 4.4.0.217 * from 4.5.0.0 before 4.5.0.138

The weakness was presented 11/15/2023. The advisory is shared at phoenix.com. This vulnerability is uniquely identified as CVE-2023-31100 since 04/24/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 4.3.0.203, 4.3.1.163, 4.4.0.217 or 4.5.0.138 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-35428). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CNA Base Score: 8.4
CNA Vector (Phoenix Technologies, Inc.): 🔍

CVSSv2info

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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: 🔍

Upgrade: SecureCore Technology 4 4.3.0.203/4.3.1.163/4.4.0.217/4.5.0.138

Timelineinfo

04/24/2023 🔍
11/15/2023 +205 days 🔍
11/15/2023 +0 days 🔍
07/29/2025 +621 days 🔍

Sourcesinfo

Advisory: phoenix.com
Status: Confirmed

CVE: CVE-2023-31100 (🔍)
GCVE (CVE): GCVE-0-2023-31100
GCVE (VulDB): GCVE-100-245433
EUVD: 🔍

Entryinfo

Created: 11/15/2023 03:53
Updated: 07/29/2025 00:38
Changes: 11/15/2023 03:53 (48), 12/10/2023 09:59 (12), 07/28/2025 23:31 (16), 07/29/2025 00:38 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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