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CVE-2023-28910: Critical Bluetooth Stack Vulnerability in MIB3 Infotainment System

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Overview

CVE-2023-28910 is a critical vulnerability found within the Bluetooth stack of the MIB3 infotainment system, predominantly used in Skoda Superb III cars. The flaw has the potential to bypass assertion functions due to a disabled abortion flag, leading to possible system compromise or data leakage. This vulnerability is of concern to all users of MIB3 infotainment systems, particularly those with the Skoda Superb III car featuring the OEM part number 3V0035820. It is crucial to understand the nature of this vulnerability and the resulting implications to ensure the security of these systems.

Vulnerability Summary

CVE ID: CVE-2023-28910
Severity: High (CVSS score: 8.0)
Attack Vector: Bluetooth
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

MIB3 Infotainment System | All versions with OEM part number 3V0035820

How the Exploit Works

The exploit manipulates the Bluetooth stack of the MIB3 infotainment system. The system has a specific flaw arising from disabling the abortion flag. This disabled flag allows for the bypass of assertion functions within the system, which could lead to a potential security compromise. An attacker, once paired with the Bluetooth system, could potentially exploit this flaw to gain unauthorized access to the system or leak sensitive data.

Conceptual Example Code

This section does not provide a real exploit but a conceptual example of how the vulnerability could be exploited. This could involve a sequence of Bluetooth commands, which, when issued in a specific order, lead to the bypass of assertion functions. The example below is a hypothetical Bluetooth command sequence:

$ bluetoothctl
[bluetooth]# pair <device_address>
[bluetooth]# connect <device_address>
[bluetooth]# send-command <malicious_command_sequence>

This command sequence represents an initial pairing with the device, establishing a connection, and then sending a hypothetical malicious command sequence that could exploit the vulnerability.
Please note that the “malicious_command_sequence” is a placeholder for a potential command or sequence of commands that could bypass the assertion functions. The exact nature of this command would depend on the specifics of the vulnerability and the implementation of the Bluetooth stack in the affected system.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.
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