CVE-2019-2102 : Vulnerability Insights and Analysis

Android BLE vulnerability allows for remote keystroke injection without user interaction.

Understanding CVE-2019-2102

This CVE involves a vulnerability in the Bluetooth Low Energy (BLE) specification affecting Android devices.

What is CVE-2019-2102?

The BLE specification includes a Long Term Key (LTK) example that, if used as a hardcoded LTK by a BLE device, could allow a nearby attacker to remotely inject keystrokes on a paired Android host without user interaction.

The Impact of CVE-2019-2102

The vulnerability arises from improper cryptography usage in Android versions 7.0 to 9, potentially leading to an elevation of privilege attack.

Technical Details of CVE-2019-2102

Vulnerability Description

Improper use of a hardcoded LTK in BLE devices can enable attackers to inject keystrokes remotely on Android hosts.

Affected Systems and Versions

Android versions 7.0, 7.1.1, 7.1.2, 8.0, 8.1, and 9 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability without any user interaction, posing a significant security risk.

Mitigation and Prevention

Immediate Steps to Take

Disable Bluetooth when not in use to minimize exposure to potential attacks.
Regularly update Android devices to the latest security patches to mitigate the vulnerability.

Long-Term Security Practices

Implement strong encryption protocols and avoid using hardcoded keys in BLE devices.
Educate users on the risks of unsecured Bluetooth connections and the importance of timely updates.

Patching and Updates

Stay informed about security bulletins and promptly apply patches released by Android to address this vulnerability.