Capture The Flag Solution: reversing the password

Published

2017-08-13 00:00

Collected

2026-07-05 05:41

---
id: 3565
title: "Capture The Flag Solution: reversing the password"
source_domain: hackerone.com
source_url: "https://www.hackerone.com/blog/capture-flag-solution-reversing-password"
published_at: "2017-08-13T00:00:00Z"
tags: ["ctf", "reverse-engineering", "json", "writeup", "hex"]
phying_url: "https://phying.com/item/3565"
lang: en
---

# Capture The Flag Solution: reversing the password

## Summary

Write-up of HackerOne's mini-CTF: solvers convert a hex payload to JSON, find every fourth byte corrupted by an MSB/LSB trick, repair it and recover the thief's password for Barry's account.

## Intelligence Metadata

- **Sources:** hackerone.com
- **Published:** 2017-08-13T00:00:00Z
- **Original:** https://www.hackerone.com/blog/capture-flag-solution-reversing-password
- **Phying News:** https://phying.com/item/3565