1337UPMediumCTF Challenge
Bob L'éponge
Bob L'éponge
##Challenge Name: Bob L'éponge
###Solves
- >Solves: 82
- >Points: 100
###Description
I'm an epic hacker and I'm trying to start a YouTube channel to show off my skills! I've been playing around with some of the video settings and stumbled upon a few cool features. Can you find the secret I've hidden?
###Approach
- >
Initial Observations:
- >We were given a YouTube video URL to investigate. Watching the video, we determined that there was no flag directly visible in the video content itself.
- >
Exploring Additional Elements:
- >Checked for:
- >Comments: No useful information.
- >Descriptions: Empty.
- >Subtitles or annotations: None present.
- >Navigated to the channel's main page to look for additional content.
- >Checked for:
- >
Discovering the Playlist:
- >
On the channel, we found a playlist named
. It contained three videos:a playlist- >
Test - >
Test2 - >
(the one we already had the URL for).Test3
- >
- >
Both
andTest
were 1 second long, and likeTest2
, they contained no useful information in their comments, descriptions, or subtitles.Test3
- >
- >
Missed Opportunity During the Challenge:
- >After the challenge ended, it was revealed that the flag was hidden in the metadata of the YouTube page source.
- >By viewing the page source (
) and searching forCtrl + U
, the flag was found in the metadata.INTIGRITI - >Crtl + F and search for
.INTIGRITI

Image - >
Flag Found:
INTIGRITI{t4gs_4r3_m0stly_0bs0l3t3_zMlH7RH6psw}
###Flag
INTIGRITI{t4gs_4r3_m0stly_0bs0l3t3_zMlH7RH6psw}