CVE-2019-2218 : Security Advisory and Response

A potential vulnerability in the createSessionInternal function of the PackageInstallerService.java file in Android versions 8.0, 8.1, 9, and 10 could lead to unauthorized permission grants and local privilege escalation without user interaction.

Understanding CVE-2019-2218

This CVE identifies a security issue in Android versions 8.0, 8.1, 9, and 10 that could allow attackers to escalate privileges locally.

What is CVE-2019-2218?

The vulnerability lies in the createSessionInternal function of the PackageInstallerService.java file
It could result in unauthorized permission grants if a permission check is not performed
Attackers could exploit this to install harmful packages with necessary user execution privileges
User interaction is not required for exploitation

The Impact of CVE-2019-2218

Allows attackers to install malicious packages with user execution privileges
Leads to local privilege escalation without user interaction

Technical Details of CVE-2019-2218

This section provides more technical insights into the vulnerability.

Vulnerability Description

Found in the createSessionInternal function of PackageInstallerService.java
Could lead to unauthorized permission grants and local privilege escalation

Affected Systems and Versions

Affected versions: Android 8.0, 8.1, 9, and 10

Exploitation Mechanism

Attackers exploit the vulnerability to install harmful packages with necessary user execution privileges

Mitigation and Prevention

Steps to address and prevent the CVE-2019-2218 vulnerability.

Immediate Steps to Take

Apply security patches provided by the vendor
Monitor for any unauthorized package installations

Long-Term Security Practices

Regularly update the Android operating system
Implement security best practices to prevent privilege escalation

Patching and Updates

Stay informed about security bulletins and updates from Android
Apply patches promptly to mitigate the vulnerability