Input validation error in MBUX Infotainment System - CVE-2021-23909

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Main Vulnerability Database Vulnerabilities #VU53387

Input validation error in MBUX Infotainment System - CVE-2021-23909

Published: May 20, 2021


Vulnerability identifier: #VU53387
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-23909
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MBUX Infotainment System
Software vendor:
Mercedes-Benz

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists in HERMES 2.1 on Mercedes-Benz vehicles due to insufficient validation of user-supplied input in the SH2 MCU. A remote attacker can pass specially crafted input and execute arbitrary code on the target system.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links