CVE-2021-23908 : An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on

An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. A type confusion issue affects MultiSvSetAttributes in the HiQnet Protocol, leading to remote code execution.

Published 2021-05-13 19:15:08

Updated 2021-12-10 18:09:48

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2021-23908

Mercedes-benz » Headunit Ntg6 Mercedes-benz User Experience » Version: 2021
cpe:2.3:a:mercedes-benz:headunit_ntg6_mercedes-benz_user_experience:2021:*:*:*:*:*:*:*
Matching versions
When used together with: Mercedes-benz » A 220 » Version: N/A
When used together with: Mercedes-benz » A 220 4matic » Version: N/A
When used together with: Mercedes-benz » E 350 » Version: N/A
When used together with: Mercedes-benz » E 350 4matic » Version: N/A
When used together with: Mercedes-benz » EQC » Version: N/A
When used together with: Mercedes-benz » Gle 350 » Version: N/A
When used together with: Mercedes-benz » Gle 350 4matic » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-23908

EPSS FAQ

4.91%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 93 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-23908

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
2.9	LOW	CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N	0.4	2.5	MITRE
Attack Vector: Physical Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-23908

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-23908

https://media.daimler.com/marsMediaSite/en/instance/ko.xhtml?oid=49946866

Collaboration of Mercedes-Benz and Tencent Security Keen Lab to strengthen car IT security - Daimler Global Media Site
Third Party Advisory

CVEs referencing this url
https://keenlab.tencent.com/en/2021/05/12/Tencent-Security-Keen-Lab-Experimental-Security-Assessment-on-Mercedes-Benz-Cars/

Tencent Security Keen Lab: Experimental Security Assessment of Mercedes-Benz Cars | Keen Security Lab Blog
Third Party Advisory

CVEs referencing this url
https://keenlab.tencent.com/en/whitepapers/Mercedes_Benz_Security_Research_Report_Final.pdf

Exploit;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2021-23908

Products affected by CVE-2021-23908

Exploit prediction scoring system (EPSS) score for CVE-2021-23908

CVSS scores for CVE-2021-23908

CWE ids for CVE-2021-23908

References for CVE-2021-23908