CVE-2019-15388 : Security Advisory and Response

The Coolpad 1851 Android device is vulnerable to a security issue that allows a third-party app to execute commands as the system user, potentially leading to various malicious activities.

Understanding CVE-2019-15388

This CVE involves a vulnerability in the Coolpad 1851 Android device that enables unauthorized access and control by a malicious app.

What is CVE-2019-15388?

The Coolpad 1851 Android device contains a pre-installed platform app with a service that allows arbitrary commands to be executed as the system user, posing a significant security risk.

The Impact of CVE-2019-15388

The vulnerability permits a third-party app to perform actions like video recording the user's screen, factory resetting the device, accessing notifications, and more, compromising user privacy and device security.

Technical Details of CVE-2019-15388

This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the com.lovelyfont.defcontainer app, which can execute commands as the system user, enabling unauthorized access and control.

Affected Systems and Versions

Device: Coolpad 1851 Android
App: com.lovelyfont.defcontainer (versionCode=7, versionName=7.1.13)

Exploitation Mechanism

The com.lovelyfont.defcontainer app allows any app on the device to provide commands executed as the system user.
The accompanying app, com.ekesoo.lovelyhifonts, facilitates a Man-in-the-Middle attack to inject commands into network responses.

Mitigation and Prevention

Protecting against CVE-2019-15388 involves immediate actions and long-term security practices.

Immediate Steps to Take

Remove or disable the vulnerable apps, com.lovelyfont.defcontainer and com.ekesoo.lovelyhifonts.
Regularly monitor device activity for suspicious behavior.

Long-Term Security Practices

Install security updates and patches promptly.
Avoid downloading apps from untrusted sources.

Patching and Updates

Check for security updates from the device manufacturer.
Apply patches to fix the vulnerability and enhance device security.