Wei's

PicoCTF - Redaction gone wrong

26 Sep 2022 picoCTF 

Challenge

Tags

PicoCTF 2022 / Forensics

Description

Now you DON’T see me.
This report has some critical data in it, some of which have been redacted correctly, while some were not. Can you find an important key that was not redacted properly?

Prereguisite

pdftotext
You can download by sudo apt install poppler-utils.

Writeup

  1. Download the pdf. 
    
 wget https://artifacts.picoctf.net/c/264/Financial_Report_for_ABC_Labs.pdf
  2. Convert pdf to txt. 
    
 pdftotext Financial_Report_for_ABC_Labs.pdf
  3. Grep the flag. 
    
 cat Financial_Report_for_ABC_Labs.txt| grep pico
  4. Here’s flag! picoCTF{C4n_Y0u_S33_m3_fully} ٩(^ᴗ^)۶

Related posts

Archive

solidity picoCTF Go ethernaut linux leetcode blockchain sql react leetcode-top-interview array medium typescript smart-contract solana javascript java ethereum easy css Linux zsh ubuntu two-pointer next.js jekyll http hardhat golang ethers Secureum Rust web wallet vscode typeorm truffle stack shell rpc notion notes nodejs nextjs mocha html github git geth express eslint docker cloudflare Vim DSA