com.yingsheng.nadai v1.2.0 Unauthenticated Firmware Download Leading to Sensitive Data Exposure

From this webpage screenshot, the following key information about the vulnerability can be obtained: 1. Product and Version: - Product: com.yingsheng.nadai - Version: v1.2.0 2. Vulnerability Type: - Incorrect Access Control 3. Severity: - High 4. Project Description: - Wear Sync v1.2.0 is an application designed to help users track and achieve health and fitness goals. It simplifies health management by collecting key information such as exercise, sleep quality, and stress levels, and synchronizes this data with users’ wearable devices and smart devices, providing a comprehensive health overview. 5. Vulnerability Description: - Due to the lack of access control restrictions or authentication mechanisms in the application, attackers can exploit leaked information to download firmware from the APK file. Specifically, the firmware update and download process lacks authentication mechanisms, allowing potential attackers to analyze code and data within the APK file. They can locate classes or methods related to firmware updates and downloads and exploit APIs associated with network requests. By leveraging compatible physical devices, attackers can successfully retrieve the complete firmware associated with the application, leading to significant security risks. Attackers can analyze the firmware to extract potentially sensitive data such as passwords, encryption keys, and configuration files. If leaked, this data could lead to system compromise, enabling attackers to access firmware source code, modify firmware, and gain full control over the device. 6. Vulnerability Reproduction: - Manual analysis of the APK file using tools like JADX reveals that it uses the HAYLOU brand SDK, indicating that it can interact with or perform functions related to HAYLOU devices. - Further code analysis shows that URL information related to firmware download or updates can be extracted from the file, such as and . 7. Vulnerability Impact: - The absence of necessary access control mechanisms allows attackers to obtain the complete firmware. By analyzing the firmware, they can extract potentially sensitive data such as passwords, encryption keys, and configuration files. If leaked, this data could lead to system compromise, enabling attackers to access firmware source code, modify firmware, and gain full control over the device. 8. Remediation Recommendations: - Implement access control or authentication mechanisms: Introduce permission controls or authentication processes to protect relevant functionalities. - Ensure strict authentication checks: Ensure that all requests to the server undergo rigorous authentication and authorization checks. Only authorized users should be allowed to access firmware download links. - Validate firmware download requests: Verify firmware download requests by checking the request source, device ID, user ID, etc., to ensure requests originate from legitimate devices and users. - Generate dynamic firmware download links: The server should dynamically generate firmware download links with short expiration times, causing the links to become invalid after a specified period, preventing abuse.

Goal Reached Thanks to every supporter — we hit 100%!

com.yingsheng.nadai v1.2.0 Unauthenticated Firmware Download Leading to Sensitive Data Exposure

More from this source