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Ge0rg3 / snake.html
Created February 16, 2020 19:45
websocket testing
<head>
<title>Snake</title>
</head>
<div id="container">
<canvas id="board" width="500" height="500"></canvas>
@Ge0rg3
Ge0rg3 / sysctl.conf
Last active November 12, 2019 12:10
ideal sysctl.conf
fs.protected_hardlinks = 1
fs.protected_symlinks = 1
fs.suid_dumpable = 0
kernel.core_uses_pid = 1
kernel.dmesg_restrict = 1
kernel.kptr_restrict = 2
kernel.panic = 60
kernel.panic_on_oops = 60
kernel.perf_event_paranoid = 2
kernel.randomize_va_space = 2
@Ge0rg3
Ge0rg3 / entryExam.py
Created April 15, 2019 13:18
Solution to Sunshine CTF 2019's Entry Exam challenge.
from PIL import Image, ImageDraw
from io import BytesIO
from math import floor
import requests as rq
import time
filepath = "/home/george/"
questionUrl = "http://archive.sunshinectf.org:19005/exam"
x1 = 337
@Ge0rg3
Ge0rg3 / generate.php
Created April 15, 2019 07:02
Sunshine CTF 2019's generate.php file, from the Wrestler Name Generator challenge.
<?php
$whitelist = array(
'127.0.0.1',
'::1'
);
// if this page is accessed from the web server, the flag is returned
// flag is in env variable to avoid people using XXE to read the flag
// REMOTE_ADDR field is able to be spoofed (unless you already are on the server)
if(in_array($_SERVER['REMOTE_ADDR'], $whitelist)){
@Ge0rg3
Ge0rg3 / 16-bit-aes-bruteforce.py
Created April 10, 2019 22:27
16 bit AES bruteforce challenge for Sunshine CTF '19 https://2019.sunshinectf.org/challenges#16-bit-AES
from Crypto.Cipher import AES
from itertools import product
import binascii
for val in product(range(256), repeat=2):
key = bytes(val)*8
cipher = AES.new(key, AES.MODE_ECB)
msg = cipher.encrypt("hellothisisatest")
z = binascii.hexlify(msg).decode('utf-8')
if z == "d9bf38ed407349d227b859eac20d5394":
@Ge0rg3
Ge0rg3 / timeWarp.py
Created April 10, 2019 22:15
Solving Sunshine CTF 2019's Time Warp challenge.
from socket import socket
nums = []
def recv(sock):
try: data = sock.recv(1024).decode()
except: data = ""
print(data)
return data
@Ge0rg3
Ge0rg3 / leaderboardCodeBruteforce.py
Created April 9, 2019 09:18
A tool for bruteforcing the SHA256 hash leaderboard code, as part of HMGCC's BLK_BOX challenge
from hashlib import sha256
from itertools import product
hash = "B4BFAF4A11C4C962C46ECC384D799B26FF26AC60684FE1C5396364DFA20103D0".lower()
combos = ['k8', 'SK', 'jL', 'CN', '76', 'L5', 'OR', 'AW', 'x1', '7I', 'L5', '43']
checkFlag = lambda flag: hash == sha256(''.join(flag).encode()).hexdigest()
sequences = product(*combos)
@Ge0rg3
Ge0rg3 / 4byte-xor-bruteforce.py
Created April 8, 2019 22:03
Bruteforce 4 byte XOR encryption. Made for HMGCC's BLK_BOX challenge.
alphabet = [i for i in range(32, 127)]+[10]
getEnglish = lambda text: list(filter(lambda c: c in alphabet, text))
isEnglish = lambda text: len(getEnglish(text)) == len(text)
with open('msg', 'rb') as f:
encrypted = f.read()
samples = []
for i in range(4):
samples.append([val for index, val in enumerate(encrypted) if index % 4 == i])
@Ge0rg3
Ge0rg3 / Zenith.html
Created February 1, 2019 07:20
Gynvael's Winter GameDev Challenge 2018/19
<head>
<title>Game</title>
<meta charset="UTF-8">
<style>
html, body {
margin: 0px;
padding: 0px;
}
/* https://www.dafont.com/typecast.font?l[]=10&l[]=1 */
@font-face {
@Ge0rg3
Ge0rg3 / logmonitor.c
Created December 15, 2018 17:29
A redacted file from the Waldo machine on HTB.
/*******************************************
*
*This is an application to print out common log files
*
********************************************/
#include "logMonitor.h"
void printUsage() {
printf("Usage: %s [-aAbdDfhklmsw] [--help]\n", PROGRAMNAME);