CVE-2020-0035 : What You Need to Know

Android TelephonyProvider.java allows unauthorized access to SIM card information, leading to local data exposure without requiring elevated privileges.

Understanding CVE-2020-0035

This CVE involves a vulnerability in Android's TelephonyProvider.java, potentially leading to information disclosure.

What is CVE-2020-0035?

CVE-2020-0035 is related to an information disclosure vulnerability in Android's TelephonyProvider.java, enabling unauthorized access to SIM card data.

The Impact of CVE-2020-0035

The vulnerability could result in local information disclosure without the need for extra execution privileges. Exploitation does not require user interaction.

Technical Details of CVE-2020-0035

This section delves into the specifics of the CVE.

Vulnerability Description

A missing permission check in Android's TelephonyProvider.java allows potential access to SIM card information.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability permits unauthorized access to SIM card details by exploiting the lack of a permission check in TelephonyProvider.java.

Mitigation and Prevention

Protective measures against CVE-2020-0035

Immediate Steps to Take

Apply security patches promptly to address the vulnerability
Monitor for unusual SIM card activity or data access
Implement stringent permission controls for sensitive information

Long-Term Security Practices

Regularly update and patch Android devices
Conduct security assessments to identify and resolve vulnerabilities
Employ secure coding practices to prevent similar issues
Educate users on privacy risks and secure data handling

Patching and Updates

Obtain and apply the latest security updates for Android from official sources
Ensure all relevant patches are installed to mitigate the identified vulnerability