CVE-2020-0105 : What You Need to Know

Android key_store_service.cpp vulnerability allows for local privilege escalation without additional execution privileges.

Understanding CVE-2020-0105

This CVE involves a missing permission check in onKeyguardVisibilityChanged of key_store_service.cpp, potentially leading to an elevation of privilege.

What is CVE-2020-0105?

The vulnerability in key_store_service.cpp allows apps to access keyguard-bound keys when the screen is locked, enabling local privilege escalation without requiring extra execution privileges.

The Impact of CVE-2020-0105

This vulnerability could be exploited for local privilege escalation, posing a risk of unauthorized access to sensitive information or actions on affected Android devices.

Technical Details of CVE-2020-0105

Key details about the CVE providing insights into the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

A missing permission check in onKeyguardVisibilityChanged of key_store_service.cpp enables apps to utilize keyguard-bound keys when the screen is locked, leading to local escalation of privilege.

Affected Systems and Versions

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

Exploitation Mechanism

Exploitation does not necessitate user interaction
Apps can access keyguard-bound keys while the screen is locked

Mitigation and Prevention

Recommendations on how to address the CVE and prevent potential exploitation.

Immediate Steps to Take

Apply security patches provided by Android for the affected versions
Monitor for any unusual application behavior on Android devices

Long-Term Security Practices

Regularly update Android devices with the latest security patches
Implement proper permission checks in application development to prevent similar vulnerabilities

Patching and Updates

Ensure timely installation of security updates from Android to address the vulnerability