CVE-2020-0468 : Security Advisory and Response

Android versions 10 and 11 are affected by a vulnerability in TelephonyRegistry.java that could lead to permissions bypass and local information disclosure.

Understanding CVE-2020-0468

This CVE involves a permissions bypass vulnerability in the TelephonyRegistry.java file in Android 10 and 11 versions, potentially resulting in local information disclosure.

What is CVE-2020-0468?

The vulnerability allows an attacker to bypass location permissions checks in listen() and related functions, enabling them to disclose local information without requiring additional execution privileges or user interaction.

The Impact of CVE-2020-0468

The vulnerability poses a risk of local information disclosure due to a missing permission check, potentially compromising user privacy and sensitive data.

Technical Details of CVE-2020-0468

The technical aspects of the CVE are as follows:

Vulnerability Description

The vulnerability lies in the listen() and related functions of TelephonyRegistry.java, facilitating a permissions bypass for location permissions.

Affected Systems and Versions

Product: Android
Versions: Android-10, Android-11

Exploitation Mechanism

The vulnerability can be exploited to disclose local information without needing additional privileges or user interaction, potentially leading to privacy breaches.

Mitigation and Prevention

For mitigating the risks associated with CVE-2020-0468, the following steps are recommended:

Immediate Steps to Take

Implement the latest security patches and updates for affected Android devices.
Monitor and restrict unnecessary app permissions related to location services.

Long-Term Security Practices

Regularly check for security advisories from Android and apply recommended security measures.
Keep devices updated with the latest firmware and security patches.

Patching and Updates

Ensure that Android devices are regularly updated with the latest security patches to address known vulnerabilities.