picoCTF - Writeups - Shay Aviv This repo is a collection of solutions and writeups for some of the picoCTF CTFs I mannaged to solve. CTFs: # CTF name Description Link 1 Bases What does this bDNhcm5fdGgzX3IwcDM1 mean? I think it has something to do with bases. 2 Lets-Warm-Up If I told you a word started with 0x70 in hexadecimal, what would it start with in ASCII? 3 Mod-26 Cryptography can be easy, do you know what ROT13 is? cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_uJdSftmh} 4 Nice-netcat... There is a nice program that you can talk to by using this command in a shell: $ nc mercury.picoctf.net 49039, but it doesn't speak English... 5 Obedient-Cat This file has a flag in plain sight (aka "in-the-clear"). Download flag. 6 Wave-a-flag Can you invoke help flags for a tool or binary? This program has extraordinarily helpful information... Any errors you might find, please open an issue.