Introduction to Android

Introduction to Android, Its History and Different Versions

What is Android Open Source Project (AOSP)? Architecture, Framework, Benefits (Tutorial)

What Are Complexities with Android Ecosystem?

Android Security Design and Architecture

What is Android Architecture & Its Core Components? Explained

Top Android Security Issues, Limitations, Vulnerabilities, and Enforcement

Rooting an Android Device

Android Partitions Explained (Partition Layout, Format, Manager)

Android Boot Process Step-by-Step (All Stages in Booting Process)

Important Concepts of Android App Penetration Testing

Top Android Vulnerabilities and Bugs That Lead to Mobile Hacking

Security of Android Apps

Top Android App Vulnerabilities and Security Issues

Setting Up Android Pentesting lab

Android Penetration Testing Lab Setup Process With Videos

Android Pentesting

What is Android App Penetration Testing? Core Concepts Explained

Android App Penetration Testing Using MobSF Dynamic Analyzer Tool

Android App Development Security Issues to Avoid

Android Penetration Testing Tutorial For Beginners - Certificate

<p>There are more than 5 billion smartphone users around the world. Around half of the mobile devices face <a href="https://en.wikipedia.org/wiki/Cyberattack" target="_blank" rel="noopener"><strong>cyberattacks</strong></a> because of security issues in the apps. This is not only alarming for users but also for the app creators as they lose customer trust.</p>
<p>In this mobile app penetration testing tutorial for beginners, you will learn the importance of app pentesting and how to make mobile applications highly secure. This is a highly in-demand cybersecurity skill that helps businesses to protect app data from hackers, financial losses, harm to reputation, and build customer trust.</p>

Android Penetration Testing Tutorial For Beginners - Example

Mobile App Penetration Testing Interview Questions (Android Application Pentesting)

This Android Penetration Testing Tutorial for beginners will help you learn the basics of Android app pentesting and become a master at it.

Android Penetration Testing Tutorial for Beginners

Android Penetration Testing Tutorial

Android Penetration Testing Quiz and MCQ Test

Learn how to find bugs and security flaws in mobile apps with practicals.

Android Penetration Testing Tutorial For Beginners

Bugs and Vulnerabilities in Android

It’s Quiz Time!

<p>Below are some of the known vulnerabilities in Android over the years that could allow hackers to gain root access to Android devices:</p>
<ul>
<li>
<h3 role="presentation">Kernel: Wunderbar/asroot (CVE-2009-2692)</h3>
</li>
</ul>
<p>This vulnerability allowed local users to trigger NULL pointers dereference and find access with the help of mmap and map page zero. Hackers could create arbitrary code on the page and invoke unavailable operations.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Recovery: Volez</h3>
</li>
</ul>
<p>Volez vulnerability existed in the Android 2.0 and 2.0.1 devices of Motorola Droid. It allows hackers to make changes to the signed OTA recovery package because of flaws in the signature verifier.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Udev: Exploit (CVE-2009-1185)</h3>
</li>
</ul>
<p>This vulnerability affected all the Android versions from 1.0 to 2.1. Hackers could send NETLINK messages from user space and impose as if it started from the kernel.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Adbd: RageAgainstTheCage (CVE-2010-EASY)</h3>
</li>
</ul>
<p>Here, the attackers could abuse the adbd (ADB daemon) to find root access. The vulnerability existed in all the devices running Droid2, backflip, and Evo.</p>
<ul>
<li>
<h3 role="presentation">Zygote: Zimerlich and Zysploit</h3>
</li>
</ul>
<p>This was quite similar to the RageAgainstTheCage vulnerability and affected all the devices running Android 1.0 to 2.2.</p>
<ul>
<li>
<h3 role="presentation">Ashmem: KillingInTheNameOf and psneuter (CVE-2011-1149)</h3>
</li>
</ul>
<p>Android versions below 2.3 could not limit access to the system property space. It allowed hackers to bypass the app sandbox and find access to local applications.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Vold: GingerBreak (CVE-2011-1823)</h3>
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</ul>
<p>This vulnerability allowed local users to write arbitrary code and find root access through a negative index. It was affecting the Android versions from 2.3 to 3.0. The vold volume manager on the devices was trusting the messages from PF_NETLINK socket.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">PowerVR: levitator (CVE-2011-1350 &amp; CVE-2011-1352)</h3>
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</ul>
<p>These were two vulnerabilities that were caused because of improper checking of the PowerVR driver. When the data was copied to kernel memory, hackers could use malicious local apps for writing code to the memory. This allowed them to write arbitrary code and escalate privileges. All the devices running Android 1.0 to 2.3.5 were vulnerable.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Libsysutils: zergRush (CVE-2011-3874)</h3>
</li>
</ul>
<p>It allowed remote attackers to write arbitrary code through apps with illegitimate arguments. It affected the devices running Android 2.2 to 2.3.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Kernel: mempodroid (CVE-2012-0056)</h3>
</li>
</ul>
<p>This vulnerability affected Android version 4.0 because the mem_write function in the Linux kernel didn&rsquo;t check permissions for enabling access. Android devices from Acer, Galaxy Nexus, Motorola, and Asus were vulnerable.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">File Permission &amp; Symlink Attacks</h3>
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</ul>
<p>Several Android devices face attacks related to file permission and symbolic links. The primary reasons behind such attacks are the modifications to the system by original device manufacturers.&nbsp;</p>
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<li>
<h3 role="presentation">Adb Restore Race Condition</h3>
</li>
</ul>
<p>Android 4.0 devices had the feature for full device data backup using adb backup command. For data restoring, the adb restore command was used.</p>
<p>However, the restore process had a couple of security flaws that allowed hackers to create files and directories that could be accessed by other apps. Another flaw allowed them to restore file sets without managing the restore process.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Exynos4: exynos-abuse</h3>
</li>
</ul>
<p>Android devices with Exynos 4 processes were affected by this vulnerability. The flaw was there in the Samsung kernel driver, which enabled all the apps to access the /dev/exynosmem file. With this, the physical RAM could be mapped with the read &amp; write permissions.&nbsp;</p>
<ul>
<li>
<h3 role="presentation">Diag: lit/diaggetroot (CVE-2012-4220)</h3>
</li>
</ul>
<p>This vulnerability allowed hackers to write arbitrary code or carry out DoS attacks through apps that use arguments in local diagchar_ioctl calls.&nbsp;</p>

<p>What type of changes can be made to the device and modify permissions?</p>

<p><b> </b>What do unlocked bootloaders carry?</p>

<p><b> </b>Finding Root Access on Booted System To find root access to a booted system, there is a need for what?</p>

<p><b> </b>Which vulnerability allowed local users to trigger NULL pointers dereference and find access with the help of mmap and map page zero?</p>

<p><b> </b>Which vulnerability allowed hackers to write arbitrary code or carry out DoS attacks through apps that use arguments in local diagchar_ioctl calls?</p>

<p><b> </b>_______ provides root access to the system through apps until the phone is restarted.</p>

<p><b> </b> ______  vulnerability allows hackers to make changes to the signed OTA recovery package because of flaws in the signature verifier.</p>

<p>A _____ is replaceable software that interacts with the device hardware.</p>

<p><b> </b>The aim of having a partition layout is to enable the functionalities in the device properly.</p>

<p>The role of the download mode is to update the persistent storage via flashing.</p>

In this tutorial, learn about Android Vulnerabilities and Bugs and how it allow hackers to gain root access to Android devices. Learn more with a Quick Quiz.

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Top Android Vulnerabilities and Bugs That Lead to Mobile Hacking

Table of Contents

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