Hardcoded MQTT Credentials in SunGrow WiNet-SV200 by SunGrow

CVE-2024-50692

What is CVE-2024-50692?

CVE-2024-50692 is a notable security vulnerability affecting the SunGrow WiNet-SV200, a device used for managing solar inverter systems. This vulnerability stems from hardcoded MQTT (Message Queuing Telemetry Transport) credentials embedded within the device's firmware versions 001.00.P027 and earlier. The presence of these hardcoded credentials poses a significant security risk, enabling attackers to send arbitrary commands to any inverter under the device’s management. Additionally, the lack of TLS (Transport Layer Security) to authenticate the MQTT broker opens doors for man-in-the-middle (MitM) attacks, compromising the integrity of communications between the device and its broker. This vulnerability could lead to unauthorized access and control over solar inverters, potentially impacting an organization’s energy management systems and overall operational safety.

Potential impact of CVE-2024-50692

1. Unauthorized Access and Control: The hardcoded credentials allow attackers to gain unauthorized access to the SunGrow WiNet-SV200, enabling them to execute arbitrary commands, which can alter inverter operations or compromise their settings.

2. Man-in-the-Middle Attacks: Without TLS to secure communications, attackers could easily impersonate the MQTT broker, leading to the interception and manipulation of data being transmitted. This vulnerability compromises the confidentiality and integrity of communications, creating significant risks in operational environments.

3. Operational Disruptions: If exploited, this vulnerability could result in critical disruptions to solar power operations, potentially causing system failures or outages. Organizations relying on affected devices may experience downtime or loss of energy production, impacting their business continuity and financial performance.

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