MasterWard Profile
  • Introduction
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  • Resume
  • HackThebox Notes
    • RedPanda
    • Metatwo
  • CTF Contest Writeups
    • 2017
      • Takoma Park CTF
      • TUCTF 2017
      • HITCON CTF 2017 Quals
      • CSAW CTF Qualification Round 2017
      • SEC-T CTF
      • Backdoor CTF 2017
      • Hack Dat Kiwi 2017
      • Kaspersky 2017
      • Hack.lu 2017
      • HackCon 2017
      • Defcamp 2017
      • Square CTF 2017
      • Mitre 2017
      • EKOPARTY CTF 2017
    • 2018
      • SEC-T CTF
      • Hackcon 2018
      • EasyCTF IV 2018
      • DefCamp CTF Qualifiers
      • PACTF 2018
      • CSAW CTF Qualifiers 2018
      • PicoCTF 2018
    • 2019
      • Newark Academy CTF 2019
      • Crypto CTF 2019
      • PicoCTF 2019
        • General Skills
        • Binary Exploitations
        • Forensics
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        • Cryptography
        • Web Exploitation
      • TAMUctf 19
    • 2021
      • picoCTF 2021
        • General Skills
        • Binary Exploitation
        • Forensics
        • Reverse Engineering
        • Cryptography
        • Web Exploitation
      • HackiHoli
      • S.H.E.L.L CTF
      • DawgCTF 2021
      • TCTF 2021
      • RedPwnCTF 2021
      • IJCTF 2021
      • UIUCTF 2021
      • Really Awesome CTF 2021
      • TMUCTF 2021
      • CSAW Qualifiers 2021
      • Pbjar CTF 2021
      • Deadface CTF 2021
    • 2022
      • NahamCon CTF 2022
      • BYUCTF 2022
      • DEF CON Qualifiers 2022
    • Useful Code
  • Software
    • Video Standardization and Compression
    • TOBIAS
    • Tracking Phone
    • Image Compression
    • Do Not Call Database
    • Color Blind Simulator
    • Gmail Unsubscriber
    • MP4 to GIF Converter
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    • Soft Jobs
    • OBD Project
    • Online Movie Finder
    • Work In Progress
      • Incremental Backup
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      • Cyber Security Projects
      • Bsaber AI
    • Ideas
      • CAN Programming
      • Malicious Programs
      • Remove Yourself from the Internet
      • DNA Classic
      • Auto Clicker
      • Adding Depth to a Video
      • Collage Mosaic Generator
      • Game Destroyer
      • Hearing aid Technology
      • Sign Language Recognition
      • Text Summarizer
      • Video to audio to text
      • Video Object Detection
      • VR demonstration
      • More Ideas to Elaborate on
    • Failure
      • Police Camera Radar
      • Already Created
      • Google Maps Game
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      • Bullshit Detector
      • Automated Code writter
      • Career Prediction
      • Samsung Remote Control Hack
      • Invalid Finder
      • PiHole Regex Filter
      • Group Archiver
  • Additional Articles
    • Cleaning Up a Computer Tricks
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    • College Experience
    • Currently Writting
      • Reverse Engineering Notes
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      • OSCP help
      • Job Experience
      • Professional Job-Hunting Experience
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On this page
  • Stonks [20 pts] [Not Solved]
  • Cache Me Outside [70 pts] [Not Solved]
  • Here's a LIBC [90 pts] [Not Solved]
  • Unsubscriptions Are Free [100 pts] [Not Solved]
  • filtered-shellcode [160 pts] [Not Solved]
  • Kit Engine [200 pts] [Not Solved]
  • Stonk Market [250 pts] [Not Solved]
  • Download Horsepower [350 pts] [Not Solved]
  • The Office [400 pts] [Not Solved]
  • Turboflan [450 pts] [Not Solved]
  • Bizz Fuzz [500 pts] [Not Solved]

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  1. CTF Contest Writeups
  2. 2021
  3. picoCTF 2021

Binary Exploitation

Stonks [20 pts] [Not Solved]

Description

I decided to try something noone else has before. I made a bot to automatically trade stonks for me using AI and machine learning. I wouldn't believe you if you told me it's unsecure! vuln.c nc mercury.picoctf.net 59616

Solution

a

Flag:

Cache Me Outside [70 pts] [Not Solved]

Description

While being super relevant with my meme references, I wrote a program to see how much you understand heap allocations. nc mercury.picoctf.net 31153 heapedit Makefile libc.so.6

Solution

a

Flag:

Here's a LIBC [90 pts] [Not Solved]

Description

I am once again asking for you to pwn this binary vuln libc.so.6 Makefile nc mercury.picoctf.net 1774

Solution

a

Flag:

Unsubscriptions Are Free [100 pts] [Not Solved]

Description

Check out my new video-game and spaghetti-eating streaming channel on Twixer! program and get a flag. source nc mercury.picoctf.net 50361

Solution

a

Flag:

filtered-shellcode [160 pts] [Not Solved]

Description

A program that just runs the code you give it? That seems kinda boring... fun nc mercury.picoctf.net 26072

Solution

a

Flag:

Kit Engine [200 pts] [Not Solved]

Description

Start your engines!! d8 source.tar.gz server.py Connect at mercury.picoctf.net 17805

Solution

a

Flag:

Stonk Market [250 pts] [Not Solved]

Description

I've learned my lesson, no more reading my API key into memory. Now there's no useful information you can leak! vuln vuln.c Makefile nc mercury.picoctf.net 25462

Solution

a

Flag:

Download Horsepower [350 pts] [Not Solved]

Description

Gotta go fast d8 source.tar.gz server.py Connect at mercury.picoctf.net 32364

Solution

a

Flag:

The Office [400 pts] [Not Solved]

Description

I'm tired of having to secure my data on the heap, so I decided to implement my own version of malloc with canaries. It's 10x more secure and only 100x slower! the_office nc mercury.picoctf.net 45725

Solution

a

Flag:

Turboflan [450 pts] [Not Solved]

Description

A Radiant Gourmet Flan told our young Turboflan hero to stop rushing and slow down. Has he listened? d8 source.tar.gz server.py Connect at mercury.picoctf.net 23694

Solution

a

Flag:

Bizz Fuzz [500 pts] [Not Solved]

Description

FizzBuzz was too easy, so I made something a little bit harder... There's a buffer overflow in this problem, good luck finding it! vuln nc mercury.picoctf.net 22210

Solution

a

Flag:

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Last updated 3 years ago

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