Intercepting Android WebView traffic under new certificate validity requirement by Chromium

In a recent security assessment, we were unable to intercept the traffic originating from a WebView from an Android application. The application wasn't using certificate pinning, nor was it configured in any special way that would prevent normal interception. When testing that same application on a different device, the traffic could be intercepted directly, confirming … Continue reading Intercepting Android WebView traffic under new certificate validity requirement by Chromium →

Intercepting traffic on Android with Mainline and Conscrypt

TL;DR: The AlwaysTrustUserCerts module now supports Android 7 until Android 16 Beta. If you want to learn more about Mainline, Conscrypt and how everything works together, keep reading! Intro To properly test the backend of any mobile application, we need to intercept (and modify) the API traffic. We could use Swagger or Postman files if … Continue reading Intercepting traffic on Android with Mainline and Conscrypt →

Intercepting HTTPS Traffic from Apps on Android 7+ using Magisk & Burp

Intercepting HTTPS traffic is a necessity with any mobile security assessment. By adding a custom CA to Android, this can easily be done. As of Android Nougat, however, apps don't trust client certificates anymore unless the app explicitly enables this. In this blogpost, we present a new Magisk module, that circumvents this requirement, by automatically adding … Continue reading Intercepting HTTPS Traffic from Apps on Android 7+ using Magisk & Burp →