ctf.hacktivitycon.2020.writeup.reference

Links to writeups of the 2020 CTF@Hacktivitycon.

Pull requests for new writeup links are appreciated.

WEB | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Ladybug | 100 | $hellbr3ak<br>7riple7hrea7 | https://medium.com/@shellbr3ak/h-cktivitycon-web-88be6514b73<br>https://7riple7hrea7.com/hacktivitycon/ctf/Ladybug-HacktivityCon-CTF/ | | Bite | 100 | $hellbr3ak<br>7riple7hrea7 | https://medium.com/@shellbr3ak/h-cktivitycon-web-88be6514b73<br>https://7riple7hrea7.com/hacktivitycon/ctf/Bite-HacktivityCon-CTF/ | | GI Joe | 150 | W3rni0 | https://github.com/W3rni0/HacktivityCon_CTF_2020#tyrannosaurus-rex | | Waffle Land | 150 | $hellbr3ak | https://medium.com/@shellbr3ak/h-cktivitycon-web-88be6514b73 | | Lightweight Contact Book | 150 | $hellbr3ak<br>7riple7hrea7 | https://medium.com/@shellbr3ak/h-cktivitycon-web-88be6514b73<br> https://7riple7hrea7.com/hacktivitycon/ctf/lightweight_contact_book/ | | Template Shack | 150 | $hellbr3ak | https://medium.com/@shellbr3ak/h-cktivitycon-web-88be6514b73 | | Support Chat | 200 | jimmyli | https://blog.jimmyli.us/articles/2020-08/Cross-Site-WebSocket-Hijacking-With-SocketIO | | Note Surfer | 250 | gr455 | https://github.com/gr455/ctf-writeups/blob/master/hacktivity20/notes_surfer.md| | Special Order | 300 | Ambrotd | https://github.com/Ambrotd/hacktivitycon/blob/master/Special%20Order/Special%20Order.md| | Pizza Time | 750 | Brett Buerhaus | https://buer.haus/2020/07/31/hcktivitycon-pizza-time-web-750/ |

Binary Exploitation | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Pancakes| 75 | Akay<br>W3rni0 | https://notakay.github.io/#/blog/pancake<br>https://github.com/W3rni0/HacktivityCon_CTF_2020#tyrannosaurus-rex | | Almost | 100 | OpenToAll | https://pwning.tech/2020/08/01/hacktivitycon-pwn/| | Statics and Dynamics | 100 |OpenToAll | https://pwning.tech/2020/08/01/hacktivitycon-pwn/ | | Bullseye | 150 | OpenToAll | https://pwning.tech/2020/08/01/hacktivitycon-pwn/| | Bacon | 200 |OpenToAll | https://pwning.tech/2020/08/01/hacktivitycon-pwn/| | Space Force | 350 | | 16 solves | | What's In The Jar? | 400 | kiror0 | https://gist.github.com/kiror0/c39d0df167405c606ebd52fa48b0fb86 |

CryptoGraphy | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Tyrannosaurus Rex | 100 |W3rni0 | https://github.com/W3rni0/HacktivityCon_CTF_2020#tyrannosaurus-rex | | Perfect XOR | 100 |W3rni0 | https://github.com/W3rni0/HacktivityCon_CTF_2020#tyrannosaurus-rex | | Bon Appetit | 150 |Hong5489|https://github.com/Hong5489/HacktivityCTF/tree/master/bon_appetit | | AESTHETIC | 175 | W3rni0 | https://github.com/W3rni0/HacktivityCon_CTF_2020#a-e-s-t-h-e-t-i-c| | OFBuscated | 200 | W3rni0 | https://github.com/W3rni0/HacktivityCon_CTF_2020#ofbuscated | | Shoebox | 350 |n/a | https://colab.research.google.com/drive/1qQZhiLdW6pFkk7KcOF3O8KA1H-rEw3s3?usp=sharing |

Mobile | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Mobile One | 50 | Oxy-Gendotmobi<br>flyme2bluemoon |https://www.oxy-gen.mobi/blog-ctf-hacktivity2020.html<br>https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md | | Pinocchio | 100 | Oxy-Gendotmobi | https://www.oxy-gen.mobi/blog-ctf-hacktivity2020.html | | Just Not Interesting | 300 | | 64 solves | | Butterfly | 300 | | 7 solves |

Internet of Things | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | IoT Itch | 100 | | 103 solves | | Pretty Happy Web Processor | 150 | ministryofpwning | https://ministryofpwning.github.io/2020/07/pretty-happy-web-processor-solution/ | | YABO MIPS | 200 | |12 solves |

Steganography | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Spy vs. Spy | 50 | csivitu | https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Steganography/Spy%20vs.%20Spy| | Cold War | 50 | flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md | | Chess Cheater | 50 | flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md| | Busted | 50 | Oblivion | https://www.youtube.com/watch?v=ylrBH6xlvgU | | Contracted | 100 | | 1 solve! | | Fan Theory | 150 | dunsp4rce | https://dunsp4rce.github.io/HacktivityCon-CTF/steganography/2020/08/03/Fan-Theory.html | | Unsubscribe | 150 | | 156 solves | | Substitute Face | 200 |flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md|

Scripting | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Misdirection| 125 | flyme2bluemoon| https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md | | Prophecy| 125 | csivitu| https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Prophecy| | Tootsie Pop | 150 | csivitu |https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Tootsie%20Pop | | Hashbrown Casserole | 150 | csivitu | https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Hashbrown%20Caserole| | Impartial | 150 | csivitu|https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Impartial | | Rescue Mission | 175 |csivitu | https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Rescue%20Mission| | Flushed | 200 | csivitu |https://github.com/csivitu/CTF-Write-ups/tree/master/HacktivityCon%20CTF/Scripting/Flushed |

Miscellaneous | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Pseudo | 100 | flyme2bluemoon| https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md| | Cat CAge | 100 |flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md | | Visualism| 125 |lirimkrosa | https://medium.com/@lirimkrosa1337/hacktivityctf-miscellaneous-visualism-writeup-e5804968c869| | His Story | 150 | |235 solves | | Dumpster Diving | 175 | | 39 solves |

Forensics | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Opposable Thumks| 75 |flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon CTF/writeup.md | | Bizarro | 100 | turnipsoup | https://github.com/turnipsoup/ctfwriteups/tree/master/2020/hacktivitycon/bizarro| | Incredible Covert Malware Procedures | 100 | turnipsoup|https://github.com/turnipsoup/ctfwriteups/tree/master/2020/hacktivitycon/covert-malware | | Zipper| 125 | | 28 solves |

OSINT | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Whale Watching | 50 | turnipsoup| https://github.com/turnipsoup/ctfwriteups/tree/master/2020/hacktivitycon/whale-watching| | World Hotspots | 50 |flyme2bluemoon | https://github.com/flyme2bluemoon/CTF-Writeups/blob/master/HacktivityCon%20CTF/writeup.md#world-hotspots |

Warmups | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Read The Rules| 5 | | 1689 solves | | CaesarMirror| 20 | | 1140 solves | | Common Place| 30 | | 713 solves | | InternetCattos| 30 | wetox-team | https://github.com/wetox-team/writeup/tree/master/hacktivitycon/internet_cattos| | Hexgedit| 30 | | 777 solves| | Private Investigator| 30 | wetox-team | https://github.com/wetox-team/writeup/tree/master/hacktivitycon/Private_Investigator| | Vencryption| 30 | | 365 solves | | Spaghetti | 50 | | 128 solves |

Scavenger Hunt | Challenge | Reward points | Author | WriteUp Link | | ------------- | ------------- |------------- | ------------- | | Domo Arigato| 5 | | 82 solves| | Carmen Sandiego Visits H1| 5 | | 21 solves | | The Founding Fathers| 5 | | 152 solves | | Flagsabound| 5 | |2 solves ! | | Recanted Tales From The Bay to London| 5 | | 6 solves | | Million Dollar Jar of Mayo| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Like & Subscribe| 5 |@kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | One of us| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | The Finn'ishing Move| 5 | | 60 solves | | The Streamer| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | The Chosen One| 5 |@kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Flag Not Found| 5 | |62 solves | | Hacker101 Discord| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Send me a flag and I'll double it| 5 | | 193 solves| | The Social Media Influencer| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Hawaii Five-0| 5 | | 51 solves | | Security Report Powered by Hackers| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Ride Share Disclosures| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Capture the Changelog| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | "https://ctf.hacktivitycon.com/in"| 5 | | 71 solves | | Lights, Camera, Hacking!| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Find Me Treasure.xml| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | _config.yml#35| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Pentesters Unite| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | The Hacker101| 5 | @kohyouliang | https://isopach.dev/HacktivityCon-2020/ | | Security@| 5 |