CVE-2020-0023 : Security Advisory and Response
Learn about CVE-2020-0023, an Android security flaw enabling contact disclosure over Bluetooth. Find mitigation steps and patches in the Google Android security bulletin.
Android Bluetooth vulnerability leading to user contact information disclosure.
Understanding CVE-2020-0023
What is CVE-2020-0023?
An Android security vulnerability in AdapterService.java could result in the disclosure of user contacts over Bluetooth due to a missing permission check.
The Impact of CVE-2020-0023
The vulnerability can potentially allow a malicious app to access and disclose user contacts over a Bluetooth connection without user interaction.
Technical Details of CVE-2020-0023
Vulnerability Description
- Location: setPhonebookAccessPermission of AdapterService.java
- Risk: Information disclosure
Affected Systems and Versions
- Product: Android
- Versions: Android-10
Exploitation Mechanism
- Malicious app enabling contacts over Bluetooth without proper permission check
Mitigation and Prevention
Immediate Steps to Take
- Update Android devices to the latest security patches
- Avoid connecting to unknown Bluetooth devices
Long-Term Security Practices
- Regularly update your Android operating system
- Be cautious of granting permissions to apps
- Monitor app permissions and restrict unnecessary access
Patching and Updates
Patch available through Android security bulletin provided by Google.