Official room link We first make a variable to hold our assign ip export ip=10.10.62.114 Nmap result nmap -sC -sV $ip Starting Nmap 7.60 ( https://nmap.org ) at 2022-02-13 10:30 GMT Nmap scan re...

Linux Sig21CTF Flag 1. nc localhost 1337 ls -lah drwxr-xr-x 1 linuxuser linuxuser 4.0K Mar 31 05:32 . drwxr-xr-x 1 root root 4.0K Mar 31 05:31 .. -rw-r--r-- 1 linuxuser linuxuser 220 ...

Crypto Flag 1. we got an image for this challenge with seemingly gebrish, but cmon the category is cryptography why not try substitution techniques? 7GEa'!v$L238032J=0D69G80A?20@C06388C2N Ok this...

Flag 1. We were given a binary file to download named cr4ckm3001 simply running strings on the file then search for the flag format will us the flag strings cr4ckm3001 | grep "sig21CTF{.*}" sig21CT...

Flag 1. +[--------->++<]>+.----------.--.-[->+++<]>.-.---[-->+++<]>--.>-[--->+<]>-.[----->+<]>++.>--[-->+++++<]>.----.--------.++++++++....

Web Linux Sig21CTF Flag 1. navigating to http://sig21ctf:3000 we got this login page. From the question hint, we knew that the backend database is mysql. The first thing i think of is SQL-Injecti...

Flag 1. We were given .pcap file, we already know what to do with this file, (open with wireshark) Steps 1. Filter the traffic to use only http, Should be something like this. 2. By looking at the...

Forensics Flag 1. This challeng we have a png file, but when we try opening it we got an error msg Invalid filetype Inspecting the file we noticed the magic bytes didnt matched a png magic byte. we...