CVE-2020-27024 : Exploit Details and Defense Strategies
Learn about CVE-2020-27024, a vulnerability in Android's Bluetooth functionality that could lead to remote information disclosure. Find out how to mitigate and prevent this issue.
Android Bluetooth Packet Out of Bounds Read Vulnerability
Understanding CVE-2020-27024
What is CVE-2020-27024?
CVE-2020-27024 is a vulnerability in Android's Bluetooth functionality that could allow remote information disclosure without the need for user interaction.
The Impact of CVE-2020-27024
The vulnerability could lead to remote information disclosure triggered by a malformed Bluetooth packet, potentially exposing sensitive data.
Technical Details of CVE-2020-27024
Vulnerability Description
The issue lies in smp_br_state_machine_event of smp_br_main.cc, where a missing bounds check can result in an out of bounds read.
Affected Systems and Versions
- Product: Android
- Versions: Android-11
Exploitation Mechanism
- Exploitation does not require user interaction
- Bounds Sanitizer can mitigate this in the default configuration
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by the vendor
- Monitor for any unusual Bluetooth activity
Long-Term Security Practices
- Keep systems updated with the latest security patches
- Implement network segmentation to limit Bluetooth exposure
- Regularly review and update security configurations
Patching and Updates
- Stay informed about security bulletins and updates from Android