Samsung eMMC KLM8G1WEMB/KLMAG2GE4A improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Samsung eMMC KLM8G1WEMB/KLMAG2GE4A. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2024-31955. The attack can be executed directly on the physical device. No exploit exists.

Detailsinfo

A vulnerability was found in Samsung eMMC KLM8G1WEMB/KLMAG2GE4A. It has been rated as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Samsung eMMC with KLMAG2GE4A and KLM8G1WEMB firmware. Code bypass through Electromagnetic Fault Injection allows an attacker to successfully authenticate and write to the RPMB (Replay Protected Memory Block) area without possessing secret information.

The advisory is shared for download at semiconductor.samsung.com. This vulnerability is handled as CVE-2024-31955 since 04/08/2024. The exploitation is known to be difficult. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-29813). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

CNA Base Score: 4.9
CNA Vector (MITRE): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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

04/08/2024 🔍
10/15/2024 +190 days 🔍
10/16/2024 +0 days 🔍
06/14/2025 +241 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: semiconductor.samsung.com
Status: Confirmed

CVE: CVE-2024-31955 (🔍)
GCVE (CVE): GCVE-0-2024-31955
GCVE (VulDB): GCVE-100-280412
EUVD: 🔍

Entryinfo

Created: 10/16/2024 00:32
Updated: 06/14/2025 17:14
Changes: 10/16/2024 00:32 (61), 06/14/2025 17:14 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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