CVE-2021-1037 : Vulnerability Insights and Analysis
Discover the details of CVE-2021-1037, a security flaw in Android versions 9 to 12, allowing apps to track paired devices without permission checks. Learn how to mitigate the risk.
This article provides an overview of CVE-2021-1037, highlighting its impact, technical details, and mitigation strategies.
Understanding CVE-2021-1037
CVE-2021-1037 is a vulnerability found in Android that enables apps to track paired devices without proper permission checks, leading to information disclosure.
What is CVE-2021-1037?
The broadcast sent by DevicePickerFragment in Android does not require permission checks, allowing any app to register and monitor paired devices, breaching user privacy.
The Impact of CVE-2021-1037
This vulnerability poses a risk of information disclosure as unauthorized apps can track paired devices without the necessary Bluetooth permissions in Android versions 9, 10, 11, and 12.
Technical Details of CVE-2021-1037
The vulnerability in DevicePickerFragment allows apps to listen to pairing events without Bluetooth permissions, enabling them to gather data on paired devices.
Vulnerability Description
Apps can register to receive broadcasts when new devices are paired, exposing user device information without proper permission validation.
Affected Systems and Versions
Android versions 9, 10, 11, and 12 are impacted by this vulnerability, allowing any app to track paired devices without explicit permission.
Exploitation Mechanism
Unauthorized apps exploit the lack of permission checks in the DevicePickerFragment broadcast to monitor and store information on newly paired devices.
Mitigation and Prevention
It is crucial to take immediate steps to address CVE-2021-1037 and implement long-term security practices to safeguard devices against similar threats.
Immediate Steps to Take
Users should be cautious with apps accessing Bluetooth-related functionalities and consider uninstalling suspicious apps to prevent unauthorized information tracking.
Long-Term Security Practices
Regularly updating the Android OS and installed apps, limiting app permissions, and monitoring app behavior can enhance device security and privacy.
Patching and Updates
Users are advised to apply security patches released by Android to address CVE-2021-1037 and other vulnerabilities, ensuring the protection of their devices and data.