[bug] A Frida agent exception has occurred cannot read property 'address' of undefined #361

OsamaMahmood · 2020-04-14T12:59:34Z

Describe the bug
When i try to watch any method of a class i ran into this error after that i updated my Frida and objection framework to see if the issue gets resolved but still getting the same error.

WARNING: Ignoring this template and not completing the fields could result in your issue simply being closed.

To Reproduce
Steps to reproduce the behavior:

Run command 'ios hooking set return_value "-[FIRGetAccountInfoResponseUser emailVerified:]" true'
ios hooking watch method "-[FIRSecureTokenRequest APIKey:]" --dump-args

Both Commands result into same error.
Expected behavior
A clear and concise description of what you expected to happen.

Evidence / Logs / Screenshots
Any output from objection, such as stack traces or errors that occurred. Be sure to run objection with the --debug flag so that errors from the agent are verbose enough to debug. For example:
Getting this error when trying to dump arguments of a method call

A Frida agent exception has occurred.
TypeError: cannot read property 'address' of undefined
at [anon] (../../../frida-gum/bindings/gumjs/duktape.c:56618)
at /script1.js:10272
at frida/runtime/message-dispatcher.js:15
at o (frida/runtime/message-dispatcher.js:25)

Python stack trace: Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/console/repl.py", line 371, in start_repl
self.run_command(document)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/console/repl.py", line 185, in run_command
exec_method(arguments)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/commands/ios/hooking.py", line 234, in watch_class_method
api.ios_hooking_watch_method(selector,
File "/Users/osamamahmood/Library/Python/3.8/lib/python/site-packages/frida/core.py", line 401, in method
return script._rpc_request('call', js_name, args, **kwargs)
File "/Users/osamamahmood/Library/Python/3.8/lib/python/site-packages/frida/core.py", line 26, in wrapper
return f(*args, **kwargs)
File "/Users/osamamahmood/Library/Python/3.8/lib/python/site-packages/frida/core.py", line 333, in _rpc_request
raise result[2]
frida.core.RPCException: TypeError: cannot read property 'address' of undefined
at [anon] (../../../frida-gum/bindings/gumjs/duktape.c:56618)
at /script1.js:10272
at frida/runtime/message-dispatcher.js:15
at o (frida/runtime/message-dispatcher.js:25)

Environment (please complete the following information):

Device: iPhone X
OS: iOS 13.4
Frida Version 12.8.20
Objection Version 1..9.1

The text was updated successfully, but these errors were encountered:

leonjza · 2020-04-14T13:03:23Z

Please run objection with the --debug flag and paste that stack trace.

OsamaMahmood · 2020-04-14T13:10:06Z

objection --debug explore                 
[debug] Agent path is: /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/agent.js
[debug] Injecting agent...
Using USB device `iPhone`
[debug] Attempting to attach to process: `Gadget`
[debug] Unable to find process: `Gadget`, attempting spawn
Unable to connect to the frida server: unable to launch iOS app: The operation couldn’t be completed. Application "Gadget" is unknown to FrontBoard.
Exception ignored in: <function Pool.__del__ at 0x105b85dc0>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/pool.py", line 268, in __del__
    self._change_notifier.put(None)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/queues.py", line 368, in put
    self._writer.send_bytes(obj)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 200, in send_bytes
    self._send_bytes(m[offset:offset + size])
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 411, in _send_bytes
    self._send(header + buf)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 368, in _send
    n = write(self._handle, buf)
OSError: [Errno 9] Bad file descriptor

leonjza · 2020-04-14T13:14:15Z

And then run your commands after that please.

OsamaMahmood · 2020-04-14T13:17:34Z

When i run objection with --debug flag it closes after giving this stack trace.

OsamaMahmood · 2020-04-14T13:23:17Z

Even when I run objection version it gives this stack trace after printing out the version.

objection version                           
objection: 1.9.1
Exception ignored in: <function Pool.__del__ at 0x112b11dc0>
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/pool.py", line 268, in __del__
    self._change_notifier.put(None)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/queues.py", line 368, in put
    self._writer.send_bytes(obj)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 200, in send_bytes
    self._send_bytes(m[offset:offset + size])
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 411, in _send_bytes
    self._send(header + buf)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/multiprocessing/connection.py", line 368, in _send
    n = write(self._handle, buf)
OSError: [Errno 9] Bad file descriptor

leonjza · 2020-04-14T13:51:00Z

[debug] Unable to find process: Gadget, attempting spawn

The error says it cant find the gadget. Is the app running?

OsamaMahmood · 2020-04-14T14:15:06Z

here is the stack trace in debug mode:

app.app on (iPhone: 13.4) [usb] # ios hooking watch method "-[FIRSecureTokenRequest APIKey:]" --dump-args
A Frida agent exception has occurred.
TypeError: cannot read property 'address' of undefined
    at [anon] (../../../frida-gum/bindings/gumjs/duktape.c:56618)
    at src/ios/hooking.ts:54
    at frida/runtime/message-dispatcher.js:15
    at o (frida/runtime/message-dispatcher.js:25)

Python stack trace: Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/console/repl.py", line 371, in start_repl
    self.run_command(document)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/console/repl.py", line 185, in run_command
    exec_method(arguments)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/objection/commands/ios/hooking.py", line 234, in watch_class_method
    api.ios_hooking_watch_method(selector,
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/frida/core.py", line 401, in method
    return script._rpc_request('call', js_name, args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/frida/core.py", line 26, in wrapper
    return f(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/frida/core.py", line 333, in _rpc_request
    raise result[2]
frida.core.RPCException: TypeError: cannot read property 'address' of undefined
    at [anon] (../../../frida-gum/bindings/gumjs/duktape.c:56618)
    at src/ios/hooking.ts:54
    at frida/runtime/message-dispatcher.js:15
    at o (frida/runtime/message-dispatcher.js:25)

OsamaMahmood · 2020-05-07T11:05:18Z

@leonjza any update on this?

leonjza · 2020-05-07T11:08:02Z

Just tested this, I can only replicate it when I try and watch a selector which the ApiResolver could not find. Are you sure you have the selector right there?

I am going to add better error reporting for this case shortly.

Improves error reporting for cases like #361

OsamaMahmood · 2020-05-07T11:29:05Z

Yes the selector is there, that will be great to better understand what is causing this error.

leonjza · 2020-05-07T15:08:49Z

It could be that you are trying to watch an instance method when in fact you are after a class method. Try swapping out the - for a +.

hax0rgb · 2020-05-19T17:07:26Z

Even I'm facing the same issue when running objection on Mac osx :/

leonjza · 2020-05-20T05:43:06Z

The command invokes this logic to find your method. Maybe write a small Frida script to replicate that for your target to help you debug the name?

leonjza · 2020-06-06T15:29:19Z

@MarshalX that is unrelated to this ticket. I will reference a new issue for it as this is related to the update checker.

MarshalX · 2020-06-06T15:30:33Z

@MarshalX that is unrelated to this ticket. I will reference a new issue for it as this is related to the update checker.

the same exception #361 (comment) in this ticket

leonjza · 2020-06-06T15:32:29Z

the same exception #361 (comment) in this ticket

Which can be discussed in #381 now.

OsamaMahmood added the freshissue Default label for new, untriaged issues. label Apr 14, 2020

leonjza added 🐛bug and removed freshissue Default label for new, untriaged issues. labels Apr 17, 2020

leonjza added a commit that referenced this issue May 7, 2020

Improve error reporting for unmatched selectors.

0a206c8

Improves error reporting for cases like #361

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leonjza mentioned this issue Jun 6, 2020

Updater causes an exception for short lived commands #381

Closed

leonjza added apps and removed 🐛bug labels Jun 6, 2020

leonjza closed this as completed Jun 6, 2020

ferdinan4 mentioned this issue Dec 8, 2021

[bug] TypeError: cannot read property 'address' of undefined #508

Closed

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[bug] A Frida agent exception has occurred cannot read property 'address' of undefined #361

[bug] A Frida agent exception has occurred cannot read property 'address' of undefined #361

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leonjza commented Jun 6, 2020

[bug] A Frida agent exception has occurred cannot read property 'address' of undefined #361

[bug] A Frida agent exception has occurred cannot read property 'address' of undefined #361

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