CVE-2019-2199 : Exploit Details and Defense Strategies

Android-10 PackageInstallerService.java vulnerability allows local privilege escalation without user interaction.

Understanding CVE-2019-2199

This CVE involves a vulnerability in the createSessionInternal function of PackageInstallerService.java in Android-10.

What is CVE-2019-2199?

The createSessionInternal function in PackageInstallerService.java may contain a vulnerability that could allow bypassing permissions. Exploiting this could result in a local privilege escalation, requiring the execution privileges of the System. No user interaction is required for the exploitation.

The Impact of CVE-2019-2199

Vulnerability Type: Elevation of privilege

Technical Details of CVE-2019-2199

This section provides technical details about the CVE.

Vulnerability Description

In createSessionInternal of PackageInstallerService.java, there is a possible permissions bypass. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Affected Systems and Versions

Affected Product: Android
Affected Version: Android-10

Exploitation Mechanism

The vulnerability allows an attacker to bypass permissions in PackageInstallerService.java, leading to local privilege escalation without user interaction.

Mitigation and Prevention

Protect your systems from CVE-2019-2199 with the following steps:

Immediate Steps to Take

Apply security patches promptly
Monitor for any unusual system behavior
Restrict access to critical system components

Long-Term Security Practices

Regularly update and patch software
Conduct security audits and assessments
Implement the principle of least privilege

Patching and Updates

Ensure that your Android-10 systems are updated with the latest security patches to mitigate the risks associated with CVE-2019-2199.