Learning Pentesting for Android Devices

March 5, 2015 @ 4:32 am

Learning Pentesting for Android Devices

Aditya Gupta

Language: English

Pages: 154

ISBN: 1783288981

Format: PDF / Kindle (mobi) / ePub


Android is the most popular mobile smartphone operating system at present, with over a million applications. Every day hundreds of applications are published to the PlayStore, which users from all over the world download and use. Often, these applications have serious security weaknesses in them, which could lead an attacker to exploit the application and get access to sensitive information. This is where penetration testing comes into play to check for various vulnerabilities. 

Learning Pentesting for Android is a practical and hands-on guide to take you from the very basic level of Android Security gradually to pentesting and auditing Android. It is a step-by-step guide, covering a variety of techniques and methodologies that you can learn and use in order to perform real life penetration testing on Android devices and applications. The book starts with the basics of Android Security and the permission model, which we will bypass using a custom application, written by us. Thereafter we will move to the internals of Android applications from a security point of view, and will reverse and audit them to find the security weaknesses using manual analysis as well as using automated tools. 
We will then move to a dynamic analysis of Android applications, where we will learn how to capture and analyze network traffic on Android devices and extract sensitive information and files from a packet capture from an Android device. We will look into SQLite databases, and learn to find and exploit the injection vulnerabilities. Also, we will look into root exploits, and how to exploit devices to get full access along with a reverse connect shell. Finally, we will learn how to write a penetration testing report for an Android application auditing project.

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username and password of the application's user. #grep 'password' /data/data/com.aditya.example/files/userinfo.xml mysecretpassword This means any other application could also view and steal the user's confidential login credentials. This vulnerability could be avoided by specifying the correct file permissions while developing the application, as well as properly hashing the password along with a salt. Path traversal vulnerability or local file inclusion As the

information, in shared preferences, SQLite (in plain form) or in external storage. Developers should always keep in mind that even if the application is storing sensitive information in the data folders (/data/data/package-name), it will be accessible by a malicious application/attacker as soon as the phone is rooted. Insufficient Transport Layer Protection: Many Android developers rely on insecure mode of sending data over the network such as in the form of HTTP or not properly implementing

PayPal, Apple, Microsoft, Adobe, Skype, and many more. In his previous work at Rediff.com, his main responsibilities were to look after web application security and lead security automation. He also developed several internal security tools for the organization to handle the security issues. In his work with XYSEC, he was committed to perform VAPT and mobile security analysis. He has also worked with various organizations and private clients in India, as well as providing them with training and

Here, we will fire up dd, and store the image in sdcard, which we will later pull using the adb pull command. The adb pull command simply allows you to pull a file from the device to the local system. Once the copying is complete, which might take some time, we could quit the adb shell and go to our terminal and type in the following code: adb pull /mnt/sdcard/data.img data.img We could also directly save the image to a remote location/system using the Netcat utility. For this, we will

/data/data/[application package name] location. The underlying cause of the vulnerability is that the application allows content to be executed in an untrusted zone with privileges to access trusted zones as well. The attack becomes even more severe if the vulnerable application is a web browser, in which the attacker will be able to silently steal all the cookies and other information stored by the browser and send it to the attacker. Even some of the famous applications such as Skype,

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