CVE-2023-45851 Explained : Impact and Mitigation
Discover the impact of CVE-2023-45851 where attackers can manipulate Android Client app connections to MQTT brokers, sending fake messages to HMI devices. Learn mitigation and prevention steps.
A security vulnerability has been identified in the Android Client application when connected to the AppHub server, allowing an attacker to manipulate the connection to a malicious MQTT broker.
Understanding CVE-2023-45851
This CVE pertains to a missing server authentication issue in the Android Client application, potentially leading to unauthorized access and message manipulation.
What is CVE-2023-45851?
The Android Client application, when linked to the AppHub server, connects to an MQTT broker without server authentication. This flaw enables an attacker to direct the application to a malicious MQTT broker and send deceptive messages to the HMI device.
The Impact of CVE-2023-45851
The exploitation of this vulnerability could result in unauthorized control over the HMI device, allowing malicious entities to send false messages without authentication.
Technical Details of CVE-2023-45851
This section dives into the specifics of the vulnerability.
Vulnerability Description
The issue lies in the Android Client application's connection behavior to MQTT brokers, enabling attackers to manipulate the connection to malicious servers.
Affected Systems and Versions
- Vendor: Bosch Rexroth AG
- Product: ctrlX HMI Web Panel - WR21 (WR2107)
- Versions: All affected
- Product: ctrlX HMI Web Panel - WR21 (WR2110)
- Versions: All affected
- Product: ctrlX HMI Web Panel - WR21 (WR2115)
- Versions: All affected
Exploitation Mechanism
The attacker can exploit this vulnerability by directing the Android Client application to connect to a malicious MQTT broker, allowing unauthorized message transmission.
Mitigation and Prevention
Learn how to address and prevent this security risk effectively.
Immediate Steps to Take
To mitigate the risk, ensure that the Android Client application enforces server authentication when connecting to MQTT brokers and implement network security measures.
Long-Term Security Practices
Regularly update the Android Client application and apply security patches to prevent unauthorized connections and data manipulation.
Patching and Updates
Stay informed about security updates from Bosch to address this vulnerability and protect your devices from potential threats.