CVE-2019-2193 : Security Advisory and Response

Android devices are susceptible to a permissions bypass vulnerability in WelcomeActivity.java, potentially leading to privilege escalation and unauthorized app installations.

Understanding CVE-2019-2193

This CVE identifies a security flaw in Android devices that could allow an attacker to gain elevated privileges without user interaction.

What is CVE-2019-2193?

The vulnerability lies in WelcomeActivity.java and associated files, where a partially provisioned Device Policy Client can be exploited to install an Admin app without user awareness.

The Impact of CVE-2019-2193

Local privilege escalation is possible, enabling unauthorized app installations without user consent.
The vulnerability could lead to the execution of malicious actions without user interaction.

Technical Details of CVE-2019-2193

Android devices running specific versions are affected by this security issue.

Vulnerability Description

The flaw allows a permissions bypass in WelcomeActivity.java, potentially leading to the installation of an Admin app without user knowledge.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by leveraging a partially provisioned Device Policy Client to escalate privileges and install unauthorized apps.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2019-2193.

Immediate Steps to Take

Apply security patches provided by the device manufacturer.
Monitor for any unauthorized app installations or suspicious activities on the device.

Long-Term Security Practices

Regularly update the device's operating system to the latest version.
Implement strong device access controls and user permissions.

Patching and Updates

Stay informed about security bulletins and updates from Android to address known vulnerabilities.