CVE-2019-2206 Explained : Impact and Mitigation

Android NFC Remote Code Execution Vulnerability

Understanding CVE-2019-2206

What is CVE-2019-2206?

The function rw_i93_sm_set_read_only in the rw_i93.cc file in Android has a vulnerability that could allow a write operation outside the bounds of an array, potentially leading to remote code execution via NFC.

The Impact of CVE-2019-2206

Exploiting this vulnerability could result in remote code execution through NFC without requiring additional execution privileges, although user interaction is necessary for successful exploitation. The affected Android versions include 8.0, 8.1, 9, and 10.

Technical Details of CVE-2019-2206

Vulnerability Description

The vulnerability lies in the rw_i93_sm_set_read_only function, where a missing bounds check may allow an out-of-bounds write, enabling remote code execution over NFC.

Affected Systems and Versions

Product: Android
Versions: Android-8.0, Android-8.1, Android-9, Android-10

Exploitation Mechanism

The vulnerability can be exploited through NFC, requiring user interaction for successful execution.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by Android promptly.
Avoid interacting with unknown or suspicious NFC tags.

Long-Term Security Practices

Regularly update Android devices to the latest software versions.
Implement security best practices for NFC usage.

Patching and Updates

Stay informed about security bulletins and updates from Android.