# V1tCTF 2025: Mark The Lyrics

Writeup Author: `Duc(k) Nguyen` (`duke7012` a.k.a. `Duke` a.k.a. `SubierThumb`)

## Description

* Challenge author: `MCK`
* Category: `Web`
* Point value: `100`


> My friend make a website for his favourite, but the lyrics seem a little bit odd
>
> http://tommytheduck.github.io/mckey

Website(s):

* http://tommytheduck.github.io/mckey

## Tools used

* Google Chrome
* _Alternative:_ Any browser with the inspection feature.

## Initial Analysis

The website looks very normal, just a webpage displaying the lyrics of a remix music video. I am Vietnamese, so I know where most parts of the lyrics come from. It was really dope, you should listen to it!


Anyway, first thing first, I did not have many experience with Web challenges, so the only first thing I could do is to **Inspect** it!


As I expand the very first line of the lyric, there is something very noticable here. The letter `V`, `1` and `T` are visibly used the `<mark>` tag, which is very suspicious since those are the letters of the flag format.


That's why I decided to unfold all of the lyrics line to find the marked words. I found the following words are using the same tag: `MCK`, `-pap-`, `cool`, `-ooh-`, `yeah` and `}`. It is quite funny because they missed the the opening curly brace, but it is enough for you to recognize that it is our flag.

Quack quack.

## Solution

`v1t{MCK-pap-cool-ooh-yeah}`

## Rating
_**Like**: Cool challenge for Web beginner! Also, MCK is a famous rapper in Vietnam, so if you are interested, you can find more songs from him online :D_