Solving a Hard Google CTF challenge - 'Paste-tastic!'

#WebSecurity #Google #CTF

A video writeup on one of the web challenges from the recent Google CTF 2019.

🔗 Links

🎵 Track: Warriyo - Mortals (feat. Laura Brehm)

P.S. Sorry for my audio quality :(

[skerman]

It’s great to see members of the info sec community work together to solve these complex problems. I’m excited to see more videos like this and can’t wait to see more on your new series on your binary exploitation journey!

[fsacer]

I like the idea of the required concepts section 👌

[cat-.-]

This really reminds me how web is a congo line of crazy features (XSS auditor) followed by lunatic legacy behaviours (clobbering) melting each other down lol

[Owen-bkfc]

When you described how the XSS Auditor worked, I couldn't for the life of me figure out how someone thought that was a good idea. It seems so obviously exploitable.

[Omikoshi]

Knowing dom clobbering, xss auditor tricks, cross domain vectors, etc I could have solved this relatively quickly but I’ve also been in this field for a loong time. Since before there even were classes at uni teaching computer security. This was a insane challenge for anyone that didn’t encounter these techniques before.

[leftyyyyyyyy]

why does this channel have so little subscribers? This content deserves much more appreciation and recognition

[FennecTECH]

It just proves that security is **HARD**

[justadam]

I love how your videos are so chill and nice to watch

[vic]

This content is amazing man! Keep it coming

[KngSovereign]

1:20 - I am totally that one guy that just stumbled upon your videos randomly 😅

[王越卿]

I am curious more about how you made this awesome style of this tutor

[RickKotlarz]

Greate explanation and video demo. You may want to update the video description to highlight these various attack techniques.

[vistimalik]

Very good video keep up the good work 👌😊

[Joe_Payne]

I'm that one person who doesn't know who live overflow is who stumbled apon one of your videos

[Faraz]

Please upload more often! Love your videos!

[johnswanson]

I'm really enjoying your content!

But your audio is kind of confusing on headsets.
Your voiceover volume is shifting Left and Right continuously.
I highly recommend using mono audio for your voiceovers.

[HimitsuYami]

Hi, random person who just stumbled upon your video here so I have no clue what's going on but it sure is interesting to me lol

[arkr]

hey bro hope you are doing right, can you do more tutorials on the other vulnerabilities and explain them like you use to do ? pls

[REBLXRSCREW]

Lmao first I thought you were liveoverflow cause of the Video Styling and Voice🤣

[yes-ormd]

It sounds like you are planning a heist or something