iOS Hooking With Objection
For this section the tool Objection is going to be used. Start by getting an objection's session executing something like:
objection -d --gadget "iGoat-Swift" explore
objection -d --gadget "OWASP.iGoat-Swift" exploreBasic Enumeration of the app
Local App Paths
env: Find the paths where the application is stored inside the deviceenv Name Path ----------------- ----------------------------------------------------------------------------------------------- BundlePath /private/var/containers/Bundle/Application/179A6E8B-E7A8-476E-BBE3-B9300F546068/iGoat-Swift.app CachesDirectory /var/mobile/Containers/Data/Application/A079DF84-726C-4AEA-A194-805B97B3684A/Library/Caches DocumentDirectory /var/mobile/Containers/Data/Application/A079DF84-726C-4AEA-A194-805B97B3684A/Documents LibraryDirectory /var/mobile/Containers/Data/Application/A079DF84-726C-4AEA-A194-805B97B3684A/Library
List Bundles, frameworks and libraries
ios bundles list_bundles: List bundles of the applicationios bundles list_bundles Executable Bundle Version Path ------------ -------------------- --------- ------------------------------------------- iGoat-Swift OWASP.iGoat-Swift 1.0 ...8-476E-BBE3-B9300F546068/iGoat-Swift.app AGXMetalA9 com.apple.AGXMetalA9 172.18.4 ...tem/Library/Extensions/AGXMetalA9.bundleios bundles list_frameworks: List external frameworks used by the applicationios bundles list_frameworks Executable Bundle Version Path ------------------------------ -------------------------------------------- ---------- ------------------------------------------- ReactCommon org.cocoapods.ReactCommon 0.61.5 ...tle.app/Frameworks/ReactCommon.framework ...vateFrameworks/CoreDuetContext.framework FBReactNativeSpec org.cocoapods.FBReactNativeSpec 0.61.5 ...p/Frameworks/FBReactNativeSpec.framework ...ystem/Library/Frameworks/IOKit.framework RCTAnimation org.cocoapods.RCTAnimation 0.61.5 ...le.app/Frameworks/RCTAnimation.framework jsinspector org.cocoapods.jsinspector 0.61.5 ...tle.app/Frameworks/jsinspector.framework DoubleConversion org.cocoapods.DoubleConversion 1.1.6 ...pp/Frameworks/DoubleConversion.framework react_native_config org.cocoapods.react-native-config 0.12.0 ...Frameworks/react_native_config.framework react_native_netinfo org.cocoapods.react-native-netinfo 4.4.0 ...rameworks/react_native_netinfo.framework PureLayout org.cocoapods.PureLayout 3.1.5 ...ttle.app/Frameworks/PureLayout.framework GoogleUtilities org.cocoapods.GoogleUtilities 6.6.0 ...app/Frameworks/GoogleUtilities.framework RCTNetwork org.cocoapods.RCTNetwork 0.61.5 ...ttle.app/Frameworks/RCTNetwork.framework RCTActionSheet org.cocoapods.RCTActionSheet 0.61.5 ....app/Frameworks/RCTActionSheet.framework react_native_image_editor org.cocoapods.react-native-image-editor 2.1.0 ...orks/react_native_image_editor.framework CoreModules org.cocoapods.CoreModules 0.61.5 ...tle.app/Frameworks/CoreModules.framework RCTVibration org.cocoapods.RCTVibration 0.61.5 ...le.app/Frameworks/RCTVibration.framework RNGestureHandler org.cocoapods.RNGestureHandler 1.6.1 ...pp/Frameworks/RNGestureHandler.framework RNCClipboard org.cocoapods.RNCClipboard 1.5.1 ...le.app/Frameworks/RNCClipboard.framework react_native_image_picker org.cocoapods.react-native-image-picker 2.3.4 ...orks/react_native_image_picker.framework [..]memory list modules: List loaded modules in memorymemory list modules Name Base Size Path ----------------------------------- ----------- ------------------- ------------------------------------------------------------------------------ iGoat-Swift 0x104ffc000 2326528 (2.2 MiB) /private/var/containers/Bundle/Application/179A6E8B-E7A8-476E-BBE3-B9300F54... SubstrateBootstrap.dylib 0x105354000 16384 (16.0 KiB) /usr/lib/substrate/SubstrateBootstrap.dylib SystemConfiguration 0x1aa842000 495616 (484.0 KiB) /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguratio... libc++.1.dylib 0x1bdcfd000 368640 (360.0 KiB) /usr/lib/libc++.1.dylib libz.1.dylib 0x1efd3c000 73728 (72.0 KiB) /usr/lib/libz.1.dylib libsqlite3.dylib 0x1c267f000 1585152 (1.5 MiB) /usr/lib/libsqlite3.dylib Foundation 0x1ab550000 2732032 (2.6 MiB) /System/Library/Frameworks/Foundation.framework/Foundation libobjc.A.dylib 0x1bdc64000 233472 (228.0 KiB) /usr/lib/libobjc.A.dylib [...]memory list exports <module_name>: Exports of a loaded modulememory list exports iGoat-Swift Type Name Address -------- -------------------------------------------------------------------------------------------------------------------------------------- ----------- variable _mh_execute_header 0x104ffc000 function _mdictof 0x10516cb88 function _ZN9couchbase6differ10BaseDifferD2Ev 0x10516486c function _ZN9couchbase6differ10BaseDifferD1Ev 0x1051648f4 function _ZN9couchbase6differ10BaseDifferD0Ev 0x1051648f8 function _ZN9couchbase6differ10BaseDiffer5setupEmm 0x10516490c function _ZN9couchbase6differ10BaseDiffer11allocStripeEmm 0x105164a20 function _ZN9couchbase6differ10BaseDiffer7computeEmmj 0x105164ad8 function _ZN9couchbase6differ10BaseDiffer7changesEv 0x105164de4 function _ZN9couchbase6differ10BaseDiffer9addChangeENS0_6ChangeE 0x105164fa8 function _ZN9couchbase6differlsERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEERKNS0_6ChangeE 0x1051651d8 function _ZN9couchbase6differlsERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEERKNS1_6vectorINS0_6ChangeENS1_9allocatorIS8_EEEE 0x105165280 variable _ZTSN9couchbase6differ10BaseDifferE 0x1051d94f0 variable _ZTVN9couchbase6differ10BaseDifferE 0x10523c0a0 variable _ZTIN9couchbase6differ10BaseDifferE 0x10523c0f8 [..]
List classes of an APP
ios hooking list classes: List classes of the appios hooking list classes AAAbsintheContext AAAbsintheSigner AAAbsintheSignerContextCache AAAcceptedTermsController AAAccount AAAccountManagementUIResponse AAAccountManager AAAddEmailUIRequest AAAppleIDSettingsRequest AAAppleTVRequest AAAttestationSigner [...]ios hooking search classes <search_term>: Search a class that contains a string. You can search some uniq term that is related to the main app package name to find the main classes of the app like in the example:ios hooking search classes iGoat iGoat_Swift.CoreDataHelper iGoat_Swift.RCreditInfo iGoat_Swift.SideContainmentSegue iGoat_Swift.CenterContainmentSegue iGoat_Swift.KeyStorageServerSideVC iGoat_Swift.HintVC iGoat_Swift.BinaryCookiesExerciseVC iGoat_Swift.ExerciseDemoVC iGoat_Swift.PlistStorageExerciseViewController iGoat_Swift.CouchBaseExerciseVC iGoat_Swift.MemoryManagementVC [...]
List class methods
ios hooking list class_methods: List methods of a specific classios hooking list class_methods iGoat_Swift.RCreditInfo - cvv - setCvv: - setName: - .cxx_destruct - name - cardNumber - init - initWithValue: - setCardNumber:ios hooking search methods <search_term>: Search a method that contains a stringios hooking search methods cvv [AMSFinanceVerifyPurchaseResponse + _dialogRequestForCVVFromPayload:verifyType:] [AMSFinanceVerifyPurchaseResponse - _handleCVVDialogResult:shouldReattempt:] [AMSFinanceVerifyPurchaseResponse - _runCVVRequestForCode:error:] [iGoat_Swift.RCreditInfo - cvv] [iGoat_Swift.RCreditInfo - setCvv:] [iGoat_Swift.RealmExerciseVC - creditCVVTextField] [iGoat_Swift.RealmExerciseVC - setCreditCVVTextField:] [iGoat_Swift.DeviceLogsExerciseVC - cvvTextField] [iGoat_Swift.DeviceLogsExerciseVC - setCvvTextField:] [iGoat_Swift.CloudMisconfigurationExerciseVC - cvvTxtField] [iGoat_Swift.CloudMisconfigurationExerciseVC - setCvvTxtField:]
Basic Hooking
Now that you have enumerated the classes and modules used by the application you may have found some interesting class and method names.
Hook all methods of a class
ios hooking watch class <class_name>: Hook all the methods of a class, dump all the initial parameters and returnsios hooking watch class iGoat_Swift.PlistStorageExerciseViewController
Hook a single method
ios hooking watch method "-[<class_name> <method_name>]" --dump-args --dump-return --dump-backtrace: Hook an specific method of a class dumping the parameters, backtraces and returns of the method each time it's calledios hooking watch method "-[iGoat_Swift.BinaryCookiesExerciseVC verifyItemPressed]" --dump-args --dump-backtrace --dump-return
Change Boolean Return
ios hooking set return_value "-[<class_name> <method_name>]" false: This will make the selected method return the indicated booleanios hooking set return_value "-[iGoat_Swift.BinaryCookiesExerciseVC verifyItemPressed]" false
Generate hooking template
ios hooking generate simple <class_name>:```bash ios hooking generate simple iGoat_Swift.RCreditInfo
var target = ObjC.classes.iGoat_Swift.RCreditInfo;
Interceptor.attach(target['+ sharedSchema'].implementation, { onEnter: function (args) { console.log('Entering + sharedSchema!'); }, onLeave: function (retval) { console.log('Leaving + sharedSchema'); }, });
Interceptor.attach(target['+ className'].implementation, { onEnter: function (args) { console.log('Entering + className!'); }, onLeave: function (retval) { console.log('Leaving + className'); }, });
Interceptor.attach(target['- cvv'].implementation, { onEnter: function (args) { console.log('Entering - cvv!'); }, onLeave: function (retval) { console.log('Leaving - cvv'); }, });
Interceptor.attach(target['- setCvv:'].implementation, { onEnter: function (args) { console.log('Entering - setCvv:!'); }, onLeave: function (retval) { console.log('Leaving - setCvv:'); }, });
```
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