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IDF4APEV

Overview

banner.png

IDF4APEV refers to Integrated Detection Framework for Android's Privilege Escalation Vulnerabilites.

Developing Process

Design&Structure    [√]
poc_code/           [√]
pocs.json           [√]
vulnabilities.json  [√]
device.py           [√]
poc.py              [√]
vulnerability.py    [√]
result.py           [√]
commander.py        [√]
builder.py          [√]
executer.py         [√]
idfconsole          [√]
test the whole idf  [√]

Usage

show banner
show devices
show pocs
show cves
# diagnose
diagnose DEVICE_NAME
diagnose all
# trigger
check all all
check all POC_NAME
check DEVICE_NAME POC_NAME
check DEVICE_NAME all
# export report as markdown file into reports/
export
# clean result auto-generated before
reset

Technical Principles

Diagnosis

  1. If one device's kernel version is NOT located in the range of vulnerable version, it MAY BE not vulnerable.
  2. If one device's security-update-date is later than the patch-date of a vulnerability, it MAY BE not vulnerable.

Diagnosis is not reliable because of many elements. For a good & sarcastic example you can see the post HOW ANDROID PHONES HIDE MISSED SECURITY UPDATES FROM YOU.

Triggering

PoC tells us whether one device is vulnerable or not.

Installation

Python Modules

pip install -r requirements.txt

ndk

You need to download ndk for your platform (Windows/Mac OS/Linux, etc.) and append the directory of ndk-build to $PATH.

adb

You need to download adb and append the directory of adb to $PATH.

Demo

demo.jpg

Extra

Advantages of a Command Line Interface

  • portability almost any computer is able to drive a text terminal, so a command line interface can really run everywhere.
  • resources the CPU and memory cost of a command line interface is far lighter than a GUI library.
  • speed for advanced users, it's often faster to type a command than to dive into menus and windows.
  • development It is far faster to create a text oriented interface.
  • driving you can easily drive a text oriented program with the popen command. That means that the whole application can be tested automatically.

Acknowledgement

The banner is created with the help of toilet, which is a very interesting tool and can be installed through brew install toilet on Mac OSX :)