Intercepting HTTPS Communication in Flutter: Going Full Hardcore Mode with Frida

The post explains Flutter’s architecture and dependency chain (Dart SDK, BoringSSL) and shows how the reFlutter tool patches source to bypass SSL verification and enable traffic interception. It then presents a Frida-based approach to dynamically hook BoringSSL’s certificate verification function (ssl_crypto_x509_session_verify_cert_chain) within libflutter.so, using Ghidra analysis and memory pattern scanning to identify the function and override its return value, enabling HTTPS interception for mobile app assessments.