CVE-2019-0219 : Exploit Details and Defense Strategies

A vulnerability in Apache Cordova allows specially crafted URIs to execute JavaScript code in Android applications using the InAppBrowser plugin.

Understanding CVE-2019-0219

This CVE involves a privilege escalation issue in Apache Cordova affecting Cordova Android applications utilizing the InAppBrowser plugin.

What is CVE-2019-0219?

A crafted gap-iab: URI can enable a website in the InAppBrowser webview on Android to run arbitrary JavaScript in the main application's webview.

The Impact of CVE-2019-0219

The vulnerability could lead to information disclosure as malicious websites can execute unauthorized JavaScript code in the main application's webview.

Technical Details of CVE-2019-0219

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

Vulnerability Description

A specially designed gap-iab: URI allows websites in the InAppBrowser webview to execute JavaScript in the main application's webview on Android.

Affected Systems and Versions

Product: Cordova
Vendor: Apache
Versions affected: Cordova Android applications using the InAppBrowser plugin (cordova-plugin-inappbrowser version 3.0.0 and below)

Exploitation Mechanism

The vulnerability is exploited by using a crafted gap-iab: URI to execute unauthorized JavaScript code in the main application's webview.

Mitigation and Prevention

Protecting systems from CVE-2019-0219 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Cordova Android applications to versions above 3.0.0 to mitigate the vulnerability.
Avoid visiting untrusted websites to minimize the risk of exploitation.

Long-Term Security Practices

Regularly monitor security mailing lists and vendor advisories for updates on vulnerabilities.
Implement secure coding practices to prevent similar privilege escalation issues.

Patching and Updates

Apply security patches provided by Apache for the Cordova framework to address the vulnerability.