CVE-2023-46102 : Vulnerability Insights and Analysis

A security vulnerability, CVE-2023-46102, has been identified in the Android Client application when connecting to an MQTT broker on Bosch Rexroth AG's ctrlX HMI Web Panel. This vulnerability could allow an attacker to execute arbitrary commands on the device.

Understanding CVE-2023-46102

This section provides an overview of the CVE-2023-46102 vulnerability.

What is CVE-2023-46102?

The Android Client application, when connected to an MQTT broker, uses a hard-coded DES symmetric key for encryption. This key can be extracted by reversing both the Android Client app and the server-side web app. An attacker controlling a malicious MQTT broker on the same subnet network can send malicious messages to the HMI device, leading to the execution of arbitrary commands on the device.

The Impact of CVE-2023-46102

The impact of this vulnerability is severe as it allows attackers to remotely execute commands on the affected HMI devices, compromising their integrity, confidentiality, and availability.

Technical Details of CVE-2023-46102

In this section, we delve into the technical aspects of the CVE-2023-46102 vulnerability.

Vulnerability Description

The vulnerability resides in the Android Client application's use of a hard-coded DES symmetric key for encryption, making it possible for attackers to craft and send malicious messages to the HMI device.

Affected Systems and Versions

The following versions of Bosch Rexroth AG's ctrlX HMI Web Panel are affected: WR21 (WR2107), WR21 (WR2110), and WR21 (WR2115).

Exploitation Mechanism

Attackers can exploit this vulnerability by setting up a malicious MQTT broker on the same subnet network as the target device, enabling them to send and execute unauthorized commands on the HMI device.

Mitigation and Prevention

To safeguard against CVE-2023-46102, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

System administrators should ensure that the Android Client application is not communicating with unauthorized MQTT brokers and implement network segmentation to prevent malicious access.

Long-Term Security Practices

Regular security assessments and audits should be conducted to identify and address similar vulnerabilities in the environment.

Patching and Updates

It is recommended to apply patches provided by Bosch Rexroth AG to mitigate the CVE-2023-46102 vulnerability and keep the systems up to date with the latest security enhancements.