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11 changes: 11 additions & 0 deletions CHANGELOG.md
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Introspy-iOS Changelog
======================

## v 0.4
* Added support for iOS 7, including fixes to accommodate with seatbelt profile changes for System and AppStore apps in iOS 7.
* Clarified output for arguments and return values Introspy-iOS cannot serialize (such as NSError).
* Various bug fixes.


## v 0.3
Initial public release.
173 changes: 47 additions & 126 deletions README.md
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Introspy
========
Introspy-iOS
============

Blackbox tool to help understand what an iOS application is doing at runtime
and assist in the identification of potential security issues.

See http://isecpartners.github.io/Introspy-iOS/ for a quick introduction.


Description
-----------

Introspy comprises two separate modules: a tracer and an analyzer.
This is the repository for the Introspy-iOS tracer.

The tracer component can be installed on a jailbroken device and dynamically
configured to hook security-sensitive iOS APIs at run-time. The tool records
details of relevant API calls made by the application, including function
calls, arguments and return values and persists them in a database.
Additionally, the calls can optionally be sent to the Console for real-time
analysis.
The tracer can be installed on a jailbroken device to hook and log
security-sensitive iOS APIs called by applications running on the device. The
tool records details of relevant API calls, including arguments and return
values and persists them in a database.
Additionally, the calls are also sent to the Console for real-time analysis.

The Introspy analyzer can then be used to analyze a database generated by the
tracer, and generate HTML reports containing the list of logged function calls
as well as a list of potential vulnerabilities affecting the application.
The database can then be fed to Introspy-Analyzer, a Python script to generate
HTML reports containing the list of logged function calls as well as a list of
potential vulnerabilities affecting the application. Introspy-Analyzer is hosted
on a separate repository:
https://github.com/iSECPartners/Introspy-Analyzer

See http://isecpartners.github.io/Introspy-iOS/ for a quick introduction.

Introspy Tracer
---------------
Installation
------------

Users should first download the right pre-compiled Debian package:
- https://www.dropbox.com/s/z5cwqk5wti3zsvd/com.isecpartners.introspy-v0.3-iOS_6.1.deb?dl=1
Users should first download the latest pre-compiled Debian package available
in the release section of the project page at:
https://github.com/iSECPartners/Introspy-iOS/releases

### Dependencies

Expand Down Expand Up @@ -60,132 +63,50 @@ Finally, kill and restart the App you want to monitor.

dpkg -r com.isecpartners.introspy

Introspy Analyzer
-----------------

The analyzer requires Python 2.6 or 2.7.

### Command-line Usage

The Introspy tracer should be first used on the application to be tested, i.e.,
by selecting it within the "Introspy - Apps" Settings menu on the iOS device.
Then simply specify the device IP address when you run the analysis tool and
select the appropriate application database. This will store a local copy of the
database, which you can analyze again by specifying the database name as opposed
to the device IP address.

$ python introspy.py 192.168.1.127 --outdir e-bank
[email protected]'s password:
0. ./Applications/94656731-0259-4AE9-9EEE-BADC9244AD82/introspy-com.isecpartners.e-bank.db
1. ./introspy-com.apple.mobilemail.db
2. ./introspy-com.isecpartners.introspytestapp.db
Select the database to analyze: 0

The example above will generate an HTML report for the com.isecpartners.e-bank
application within the newly created "e-bank" directory (specified by the
`--outdir` option). The HTML report is intended to be the most common interface to
the call database and allows users to browse the full call list or filter the
list to view only those calls flagged by specific signatures.

#### Reporting

While the HTML formatted report is the most digestable format, the analysis tool
can also be used directly from the command-line. Just as the HTML report allows
you to show/hide signature groups and subgroups, you can specify groups (-g) as
well as subgroups (-s) when running the analysis to limit the output to only
those calls that match the filtering criteria.

$ python introspy.py introspy-com.isecpartners.e-bank.db -g IPC -s Schemes
Specific URL schemes are implemented by the application.
CFBundleURLTypes:CFBundleURLSchemes
arguments =>
CFBundleURLIsPrivate => nil
CFBundleURLName => transfer-money
CFBundleURLScheme => transfer-money

This example shows analysis of a local database with filtering options to limit
the output to only display registered URL schemes. We can see here that URL
requests with the transfer-money:// scheme will be handled by the application.

The analysis tool also allows users to print the entire call list similarly to
the HTML report's "Traced Calls" view by specifiying the `--list` option,
although this will print an undigestable amount of data to stdout and as such is
not recommended.

#### Enumerations

The command-line tool also allows users to enumerate various data from the list
of traced calls (via `--info`), inlcuding a list of all of the unique URLs
accessed by the application (urls), all files accessed (files), as well as
Keychain items that were added or modified (keys).

$ python introspy.py introspy-com.isecpartners.e-bank.db --info keys
token = MGJiNzg1NGRkNzBkNGMyZTExNzc4NTA3OTdjNjNkNjFiY2Q1
consumerKey = YzAwNzE4ZDZlYjYzOTM4NGM2NTc56j
consumerSecret = NmUzYmNjNmQ2YjJjNWU1MDE0Zjk3NGI4MzU4ZWRl

### Programmatic Usage

>>> from analyzer import DBAnalyzer
>>> analyzedDB = DBAnalyzer.DBAnalyzer('introspy-com.isecpartners.e-bank.db')
>>> print analyzedDB.get_findings_as_JSON()
...
{"class": "CFBundleURLTypes",
"method": "CFBundleURLSchemes"},
"arguments":
{"CFBundleURLName": "transfer-money",
"CFBundleURLScheme": "transfer-money",
"CFBundleURLIsPrivate": "nil"}
}

### Signatures

Beyond simply listing the calls recorded by the Introspy tracer, the analysis
tool allows you to apply predefined signatures to the call list and flag
potential vulnerabilities or insecure configurations. Users can browse the list
of flagged calls simply by browsing to the "Potential Findings" view within the
generated HTML report and expanding the desired signature group.

The signatures themselves are defined in `analyzer/IOS_SIGNATURES.py` and can be
easily extended.

Doing It Yourself
-----------------

### Building the iOS Tracer From Source

Generating HTML Reports
-----------------------

The tracer will store data about API calls made by applications in a database
stored on the device (actually one in each application's folder). This database
can be fed to a Python script call Introspy-Analyzer in order to generate HTML
reports that make it a lot easier to review the data collected by the tracer.
The script will also analyze and flag dangerous API calls in order to facilitate
the process of identifying vulnerabilities within iOS applications.

Introspy-Analyzer is hosted on a separate repository:
https://github.com/iSECPartners/Introspy-Analyzer


Building Introspy-iOS
---------------------

Most users should just download and install the pre-compiled Debian package.
However, if you want to modify the library's functionality you will have to
clone the source repository and build the debian package yourself.
build the Debian package yourself.

git clone https://github.com/iSECPartners/introspy.git
The build requires rpetrich's fork of the Theos suite, available at
https://github.com/rpetrich/theos.
For general instructions on how to install Theos, see
http://www.iphonedevwiki.net/index.php/Theos/Getting\_Started but make sure
you're using rpetrich's fork, not the official Theos.

The build requires the Theos suite to be installed;
see http://www.iphonedevwiki.net/index.php/Theos/Getting\_Started .
You first have to create a symlink to your theos installation:

cd introspy/ios-tracer/
cd Introspy-iOS/src/
ln -s /opt/theos/ ./theos

Then, the package can be built using:

make package

### Installing the iOS Tracer From Source

Once you've successfully created the debian package, you can use the Theos
Makefiles to automatically install the package and respring the device:
Once you've successfully created the debian package, you can use Theos to
automatically install the package and re-spring the device by specifying the
device's IP address in the THEOS_DEVICE_IP environment variable:

export THEOS_DEVICE_IP=192.168.1.127
make install

Group and Subgroup Filtering
----------------------------

The groups and subgroups correlate to filtering via the Settings menu as well as
during offline analysis using the command-line. For details on exactly which
methods correspond to each group and subgroup, refer to the wiki
[documentation](https://github.com/iSECPartners/introspy/wiki).

License
-------
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