Type Confusion in MBUX Infotainment System - CVE-2021-23908
Published: May 20, 2021
Vulnerability identifier: #VU53386
CSH Severity: High
CVSS v4.0: 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-2021-23908
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mercedes-Benz
Affected software:
MBUX Infotainment System
MBUX Infotainment System
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the Headunit NTG6 on Mercedes-Benz vehicles due to a type confusion error in MultiSvSetAttributes in the HiQnet Protocol. A remote attacker can pass specially crafted data, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-23908
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.