objection v1.2.7 releases: runtime mobile exploration
objection Runtime Mobile Exploration
introduction – objection Runtime Mobile Exploration
objection is a runtime mobile exploration toolkit, powered by Frida. It was built with the aim of helping assess mobile applications and their security posture without the need for a jailbroken or rooted mobile device.
The project’s name quite literally explains the approach as well, whereby runtime specific objects are injected into a running process and executed using Frida.
Note This is not some form of jailbreak/root bypass. By using objection, you are still limited by all of the restrictions imposed by the applicable sandbox you are facing.
features – objection Runtime Mobile Exploration
Supporting both iOS and Android and having new features and improvements added regularly as the tool is used in real-world scenarios, the following is a short list of only a few key features:
For all supported platforms, objection allows you to:
- Patch iOS and Android applications, embedding a Frida gadget that can be used with
objectionor just Frida itself.
- Interact with the filesystem, listing entries as well as upload & download files where permitted.
- Perform various memory-related tasks, such as listing loaded modules and their respective exports.
- Attempt to bypass and simulate jailbroken or rooted environments.
- Discover loaded classes and list their respective methods.
- Perform common SSL pinning bypasses.
- Dynamically dump arguments from methods called as you use the target application.
- Interact with SQLite databases inline without the need to download the targeted database and use an external tool.
- Execute custom Frida scripts.
iOS-specific features in objection include the ability to:
- Dump the iOS keychain, and export it to a file.
- Dump data from common storage such as NSUserDefaults and the shared NSHTTPCookieStorage.
- Dump various formats of information in human-readable forms.
- Bypass certain forms of TouchID restrictions.
- Watch for method executions by targeting all methods in a class, or just a single method.
- Monitor the iOS pasteboard.
- Dump encoded .plist files in a human readable format without relying on external parsers.
Android specific features in objection include the ability to:
- List the applications Activities, Services, and Broadcast receivers.
- Start arbitrary Activities available in the target application.
- Watch a class method, reporting execution as it happens.
To run objection, all you need is the python3 interpreter to be available. The installation via pip should take care of all of the dependencies needed.
As for the mobile applications though, for iOS, an unencrypted IPA is needed. If you have the source code of the application you want to explore, then you can simply embed and load the FridaGadget.gylib in the project.
-Nflag to the
patchapkcommand. This flag will add a network security config to the APK as well as the required
android:networkSecurityConfigtag to the
<application>tag. This helps for Android 7+ and the changes to CA certificates that were introduced.
- Add a hook on the
verifyChain()method in the
com.android.org.conscrypt.TrustManagerImplclass to suppress exceptions that could get thrown if a certificate with a non-trusted CA is presented. This hook is available in the
android sslpinning disablecommand and should take preference over
--network-security-configflag in the
patchapkcommand used to strip all
.‘s from the resultant APK’s name. This should no longer happen.
Installation is simply a matter of pip3 install objection. This will give you the objection command.
For more detailed update and installation instructions, please refer to the wiki page here.
The following screenshots show the main objection repl, connected to a test application on both an iPad running iOS 10.2.1, and Samsung Galaxy S5 running Android 6.
A file system listing of the iOS applications main bundle
A file system listing of the Android application’s bundle
iOS Keychain dumped for the current application, and later written to a file called keychain.json
Inline SQLite query tool
SSL Pinning bypass running for an iOS application
SSL Pinning bypass running for an Android application