nodejs

We’re back again with another NodeJS web challenge from Gynvael. Let’s get into it! Description Just like the previous challenges, we are given the source code for the NodeJS application: const http = require('http') const express = require('express') const fs = require('fs') const path = require('path') const PORT = 5006 const FLAG = process.env.FLAG || "???" const SOURCE = fs.readFileSync(path.basename(__filename)) const app = express() const checkSecret = (secret) => { return [ secret. [Read More]

It was recently brougt to my attention that Gynvael Coldwin has been releasing some CTF-style Express.js web challenges, so I decided to give them a try :) As of 5/12/2020, there are only 3 challenges published Level 1 Level 1 begins here, where we are presented with a standard layout for this type of web challenge: a blank page with the JS source echoed back to us. Source code Level 1 const express = require('express') const fs = require('fs') const PORT = 5001 const FLAG = process. [Read More]