CVE-2019-15343 : Security Advisory and Response

The Tecno Camon iClick Android device is vulnerable to a critical security issue that allows arbitrary command execution by a co-located app, potentially leading to various malicious activities.

Understanding CVE-2019-15343

This CVE identifies a vulnerability in the Tecno Camon iClick Android device that enables unauthorized apps to execute commands as the system user.

What is CVE-2019-15343?

The Tecno Camon iClick Android device contains a pre-installed platform app named com.lovelyfont.defcontainer, which permits any co-located app to run arbitrary commands by writing specific messages to the logcat log. This vulnerability can be exploited by zero-permission apps, granting attackers significant privileges.

The Impact of CVE-2019-15343

The vulnerability allows attackers to perform various malicious actions, including recording the user's screen, factory resetting the device, accessing notifications, reading logcat logs, injecting events in the GUI, changing the default Input Method Editor (IME) to a keylogging-enabled one, and obtaining text messages.

Technical Details of CVE-2019-15343

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The pre-installed app com.lovelyfont.defcontainer on the Tecno Camon iClick device allows arbitrary command execution by co-located apps, posing a severe security risk.

Affected Systems and Versions

Device: Tecno Camon iClick Android
App: com.lovelyfont.defcontainer
Version: 7.0.8

Exploitation Mechanism

Attacker writes specific messages to the logcat log triggering the execution of arbitrary commands.
Zero-permission apps can exploit this vulnerability.

Mitigation and Prevention

Protecting against CVE-2019-15343 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable or uninstall the vulnerable app com.lovelyfont.defcontainer if possible.
Regularly monitor device activities for any suspicious behavior.

Long-Term Security Practices

Keep your device updated with the latest security patches.
Avoid downloading apps from untrusted sources.

Patching and Updates

Check for security updates from the device manufacturer and apply them promptly.