Description
A flaw in the binding process of Govee’s cloud platform and devices allows a remote attacker to bind an existing, online Govee device to the attacker’s account, resulting in full control of the device and removal of the device from its legitimate owner’s account. The server‑side API allows device association using a set of identifiers: "device", "sku", "type", and a client‑computed "value", that are not cryptographically bound to a secret originating from the device itself. The vulnerability has been verified for the Govee H6056 - lamp device in firmware version 1.08.13, but may affect also other Govee cloud‑connected devices. The vendor is not able to provide a list of affected products, but rolls out a firmware and server-side fixes. Devices that reached end‑of‑life for security support need replacement with newer models supporting updates.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-204256
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-204256 pertains to a flaw in the binding process of Govee’s cloud platform and devices. This flaw allows a remote attacker to bind an existing, online Govee device to their account, effectively taking full control of the device and removing it from its legitimate owner’s account. The severity of this vulnerability is rated with a CVSS Base Score of 9.3, indicating a critical risk.
CVSS Vector Breakdown:
- AV:N (Network Vector): The vulnerability is exploitable over the network.
- AC:L (Low Complexity): The attack requires low skill or resources.
- AT:N (No Authentication): No authentication is required to exploit the vulnerability.
- PR:N (No Privileges Required): No privileges are required to exploit the vulnerability.
- UI:N (No User Interaction): No user interaction is required to exploit the vulnerability.
- VC:H (High Confidentiality Impact): The vulnerability has a high impact on confidentiality.
- VI:H (High Integrity Impact): The vulnerability has a high impact on integrity.
- VA:H (High Availability Impact): The vulnerability has a high impact on availability.
- SC:N (No Change in Scope): The vulnerability does not change the security scope.
- SI:N (No Impact on Scope Integrity): The vulnerability does not impact the integrity of the security scope.
- SA:N (No Impact on Scope Availability): The vulnerability does not impact the availability of the security scope.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Remote Exploitation: An attacker can remotely exploit the vulnerability by sending crafted requests to the Govee cloud platform.
- Man-in-the-Middle (MitM) Attacks: An attacker could intercept and manipulate the binding process to associate the device with their account.
Exploitation Methods:
- API Manipulation: The attacker can manipulate the server-side API by providing the necessary identifiers ("device", "sku", "type", and a client-computed "value") without cryptographic binding to a secret originating from the device.
- Device Hijacking: Once the device is bound to the attacker’s account, they can control the device and remove it from the legitimate owner’s account.
3. Affected Systems and Software Versions
The vulnerability has been verified for the Govee H6056 lamp device in firmware version 1.08.13. However, it may affect other Govee cloud-connected devices. The vendor has not provided a comprehensive list of affected products, but firmware and server-side fixes are being rolled out. Devices that have reached end-of-life for security support need replacement with newer models supporting updates.
4. Recommended Mitigation Strategies
Immediate Mitigation:
- Firmware Update: Ensure all Govee devices are updated to the latest firmware version.
- Server-Side Fixes: Apply the server-side patches provided by Govee to mitigate the vulnerability.
- Network Segmentation: Isolate IoT devices on a separate network to limit the attack surface.
Long-Term Mitigation:
- Regular Security Audits: Conduct regular security audits of IoT devices and cloud platforms.
- User Education: Educate users on the importance of keeping devices updated and the risks associated with outdated firmware.
- End-of-Life Replacement: Replace end-of-life devices with newer models that support security updates.
5. Impact on European Cybersecurity Landscape
The vulnerability highlights the broader issue of IoT device security, particularly in the context of smart home devices. The European cybersecurity landscape must address the challenges of securing IoT devices, ensuring robust cryptographic mechanisms, and promoting regular updates and patches. The incident underscores the need for stronger regulations and standards for IoT device security within the EU.
6. Technical Details for Security Professionals
Vulnerability Details:
- Binding Process Flaw: The binding process does not cryptographically bind the identifiers to a secret originating from the device, allowing an attacker to manipulate the process.
- API Exploitation: The server-side API allows device association using a set of identifiers that are not securely bound to the device.
Detection and Response:
- Monitoring: Implement monitoring for unusual device binding activities and API requests.
- Incident Response: Develop an incident response plan specific to IoT device hijacking, including steps for device recovery and user notification.
References:
Conclusion: The vulnerability in Govee’s cloud platform and devices underscores the critical need for robust security measures in IoT ecosystems. Immediate mitigation through firmware updates and server-side fixes is essential, along with long-term strategies to enhance IoT device security and user awareness. The European cybersecurity landscape must prioritize IoT security to protect against similar vulnerabilities in the future.