software, offensive security research
HackyEaster was awesome again. From a technical point of view there weren’t too much new things, but the creativity of the provided challenges made it really fun. Including the little teaser challenge there were a total amount of 37 challenges. These challenges were divided into different levels. You could only proceed to the next level, if you have earned enough points in the current level. I really liked that new idea.
Continue reading “Hacky Easter 2021 writeup” |
This year’s HACKvent hosted on competition.hacking-lab.com has been as great as every year. There was a total amount of 28 awesome challenges with varying difficulties. |
 |
This year’s HACKvent was hosted on the brand new Hacking-Lab 2.0 plattform. Each day from the 1st of december until the 24th a new challenge is published raising in difficulty. The flag format changed from HV18-xxxx-xxxx-xxxx-xxxx-xxxx to HV19{...}. After all I managed to solve all 28 challenges 🙂 |
 |
Hidden |
| HV19.H1 Hidden One HV19.H2 Hidden Two HV19.H3 Hidden Three HV19.H4 Hidden Four |
|
 |
Easy |
| HV19.01 censored HV19.02 Triangulation HV19.03 Hodor, Hodor, Hodor HV19.04 password policy circumvention HV19.05 Santa Parcel Tracking HV19.06 bacon and eggs HV19.07 Santa Rider |
|
 |
Medium |
| HV19.08 SmileNcryptor 4.0 HV19.09 Santas Quick Response 3.0 HV19.10 Guess what HV19.11 Frolicsome Santa Jokes API HV19.12 back to basic HV19.13 TrieMe HV19.14 Achtung das Flag |
|
 |
Hard |
| HV19.15 Santa’s Workshop HV19.16 B0rked Calculator HV19.17 Unicode Portal HV19.18 Dance with me HV19.19 U+1F385 HV19.20 i want to play a game HV19.21 Happy Christmas 256 |
|
 |
Leet |
| HV19.22 The command … is lost HV19.23 Internet Data Archive HV19.24 ham radio |
|
 |
As every year hacking-lab.com carried out the annual Hacky Easter event with 27 challenges. As usual the variety of the challenges was awesome. I actually got full score this year 🙂 Many thanks to daubsi, who gave me a nudge once in a while on the last challenges (you can find his writeup here). |
 |
Easy |
|
01 Twisted 02 Just Watch 03 Sloppy Encryption 04 Disco 2 05 Call for Papers 06 Dots 07 Shell we Argument 08 Modern Art 09 rorriM rorriM |
|
 |
Medium |
|
10 Stackunderflow 11 Memeory 2.0 12 Decrypt0r 13 Symphony in HEX 14 White Box 15 Seen in Steem 16 Every-Thing 17 New Egg Design 18 Egg Storage |
|
 |
Hard |
|
19 CoUmpact DiAsc 20 Scrambled Egg 21 The Hunt: Misty Jungle 22 The Hunt: Muddy Quagmire 23 The Maze 24 CAPTEG |
|
 |
Hidden |
|
25 Hidden Egg #1 26 Hidden Egg #2 27 Hidden Egg #3 |
|
For the sixth time in a row now hacking-lab.com carried out the annual HACKvent. Each day from the 1st of december until the 24th a new challenge is published. I would have loved to spend more time on it, but time is a rare resource especially on the days before christmas 😉 After all I managed to solve 21 of 24 tasks:
 |
Easy |
| Day 01: Just Another Bar Code Day 02: Me Day 03: Catch me Day 04: pirating like in the 90ies Day 05: OSINT 1 Day 06: Mondrian Day 07: flappy.pl |
|
 |
Medium |
| Day 08: Advent Snail Day 09: fake xmass balls Day 10: >_ Run, Node, Run Day 11: Crypt-o-Math 3.0 Day 12: SmartWishList Day 13: flappy’s revenge Day 14: power in the shell |
|
 |
Hard |
| Day 15: Watch Me Day 16: Pay 100 Bitcoins Day 17: Faster KEy Exchange Day 18: Be Evil Day 19: PromoCode Day 20: I want to play a game Day 21: muffinCTF (Day 1) Day 22: muffinCTF (Day 2) Day 23: muffinCTF (Day 3) |
|
 |
Final |
| Day 24: Take the red pill, take the blue pill | |
|
As every year hacking-lab.com carried out the annual Hacky Easter event with 27 challenges. I could not spend as much time as I would have liked to on solving the challenges, but after all I managed to collect 25 of the 27 eggs and focused on this writeup. |
 |
Easy |
|
01 Prison Break 02 Babylon 03 Pony Coder 04 Memeory 05 Sloppy & Paste (mobile) 06 Cooking for Hackers 07 Jigsaw 08 Disco Egg 09 Dial Trial (mobile) |
|
 |
Medium |
|
10 Level Two 11 De Egg you must (not solved) 12 Patience (mobile) 13 Sagittarius… 14 Same same… 15 Manila greetings 16 git cloak –hard 17 Space Invaders 18 Egg Factory |
|
 |
Hard |
|
19 Virtual Hen 20 Artist: No Name Yet (not solved) 21 Hot Dog 22 Block Jane 23 Rapbid Learning 24 ELF |
|
 |
Hidden |
|
25 Hidden Egg #1 26 Hidden Egg #2 27 Hidden Egg #3 |
|
As every year hacking-lab.com carried out the annual HACKvent challenge. Each day from the 1st of december until the 24th a new challenge is published. The difficulty raises from day to day. After all I managed to solve 20 of 24 tasks:
 |
Easy |
|
Day 01: 5th anniversary Day 02: Wishlist Day 03: Strange Logcat Entry |
|
 |
Medium |
|
Day 04: HoHoHo Day 05: Only one hint Day 06: Santa’s journey Day 07: i know … Day 08: True 1337s Day 09: JSONion Day 10: Just play the game |
|
 |
Hard |
|
Day 11: Crypt-o-Math 2.0 Day 12: giftlogistics Day 13: muffin_asm Day 14: Happy Cryptmas Day 15: Unsafe Gallery Day 16: Try to escape … Day 17: Portable NotExecutable |
|
 |
Final |
|
Day 18: I want to play a Game (Reloaded) Day 19: Cryptolocker Ransomware Day 20: linux malware Day 21: tamagotchi Day 22: frozen flag Day 23: only perl can parse Perl Day 24: Chatterbox |
|
