The Binary Exploitation: Stack based Buffer overflow

This article talks about cracking Level 13 Binary of Cyberstart CTF. The hint that was given for this challenge is “Cyclic Pattern”, which means we need to use pattern finder tool to figure out the length of the buffer and then run the arbitrary function. Let’s crack this: Running the binary gives us this output:

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Log4Shell Quick Lab Setup for Testing

Last month, On December 09 2021, The release of a Remote Code Execution POC over twitter involving exploitation of Apache’s log4j2 logging class took everyone’s peace away. The attack was pretty simple and the fact that it can be easily exploited by anyone is what made this more terrifying. The first edition of this attack

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Hacker101 CTF walkthrough Micro-CMS v1 and v2

Hacker101 CTF is based on Web, Crypto and Android platforms. The challenges are good for the beginners, some of the basics are covered through these CTF. I will be discussing “A little something to get you started”, “Micro-CMS v1” and “Micro-CMS v2” in this post. Check out my post on Bugcrowd’s CTF writeup here: http://www.anonhack.in/2020/08/bugcrowds-levelupctf-0x07-walkthrough/

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SQL Injection on Base64 Encoded String Parameters

This article is a guide to perform SQL Injection on the Base64 encoded Url parameters. These parameters are encoded so as to make the site injection proof but that is a big myth. Recently I came across “www.somesite.com/index.php?pid=VkRGRk9WQlJQVDA9″ this kind of URLs. The pid here, “VkRGRk9WQlJQVDA9“. It is nothing but 4 times encoded base64 string,

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overthewire

OVERTHEWIRE:BANDIT WALKTHROUGH SERIES 23-25 LEVELS

This is overthewire series with bandit walkthrough from level 23 – 26. If you haven’t gone through the previous articles on OVERTHEWIRE Bandit then follow the links below! Overthewire:Bandit walkthrough Series 1-5 Levels OVERTHEWIRE:BANDIT WALKTHROUGH SERIES 5-12 LEVELS OVERTHEWIRE:BANDIT WALKTHROUGH SERIES 12-15 LEVELS OVERTHEWIRE:BANDIT WALKTHROUGH SERIES 16-18 LEVELS Level 22 – 23 Login into bandit22

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Program to Convert Celsius to Fahrenheit in C Language

This article will show you the C program to convert temperature in Celsius to Fahrenheit. The Formula for conversion is: 1.8 * C + 32 Code: #include<stdio.h> void main(){ int a; float i=1; printf(“\n********************************\nprogram to convert Celsius to Fahrenheit\n***********************************\n\n”); printf(“Enter Temperature in Celsius: “); scanf(“%d”,&a); i=(1.8 * a) +32; printf(“Fahrenheit Temperature is : %.3f\n”,i); }

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