Samsung DSP Driver prior SMR Mar-2021 Release 1 ELF Library backdoor

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.2	$0-$5k	0.00

A vulnerability was found in Samsung DSP Driver (Hardware Driver Software) and classified as critical. Affected by this issue is an unknown code of the component ELF Library Handler. The manipulation with an unknown input leads to a backdoor vulnerability. Using CWE to declare the problem leads to CWE-912. The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators. Impacted is confidentiality, integrity, and availability.

The weakness was released 03/27/2021. This vulnerability is handled as CVE-2021-25371. Technical details are unknown but an exploit is available. The MITRE ATT&CK project declares the attack technique as T1588.001.

It is declared as highly functional. This issue was added on 06/29/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 07/20/2023:

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Upgrading to version SMR Mar-2021 Release 1 eliminates this vulnerability. The upgrade is hosted for download at security.samsungmobile.com.

Productinfo

Type

Hardware Driver Software

Vendor

Samsung

Name

DSP Driver

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.1
VulDB Temp Score: 5.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Backdoor
CWE: CWE-912
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DSP Driver SMR Mar-2021 Release 1

Timelineinfo

01/19/2021 🔍
03/27/2021 +67 days 🔍
03/27/2021 +0 days 🔍
04/29/2024 +1129 days 🔍

Sourcesinfo

Vendor: samsung.com

Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-25371 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/27/2021 11:46
Updated: 04/29/2024 06:38
Changes: 03/27/2021 11:46 (35), 03/27/2021 11:47 (4), 04/06/2021 10:18 (3), 04/06/2021 10:22 (19), 04/29/2024 06:38 (28)
Complete: 🔍
Cache ID: 18:2FB:103