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a.infosecflavour
a.infosecflavour

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PicoCTF 2024- CanYouSee

Can you see πŸ‘€? It's right there! Activate your lenses and find me.😺

Hey-hey, if you want to put another brick in the tower, follow along this write-up.

The description (see the photo below) is a great hint itself, because it's clear for us the answer is veiled.

descr

That's why, after downloading the attachment, the very first thing is to go on Aperi'Solve. Actually, this challenge has some similarities with Easy-Hide from Unbreakable 2024 πŸ’‘(check-out my write-up)

What caught my interest πŸ‘‡

hint1

which can also be found here πŸ‘‡

hint2

❓All right, but it's just a bunch of non-sense text! Is this the flag?

❗This is indeed the flag, but the text is encrypted with Base64. Usually, the presence of padding character "=" indicates that's Base64 type of encoding (but that's only one of the hints). To decrypt it, we can use CyberChef. Copy-paste the text and we either:

πŸ‘‰use the magic wand (which is not 100% present, but when it's there, it could be a great help)

hint

πŸ‘‰directly validate our guess by selecting From Base64 option

base64

One option or another will have the same result. ✨

flag

And...that's the flag! Hidden in meta-data. πŸ˜‰


That's it! Congrats! You consolidate your knowledge day by day! πŸ‘

What are your thoughts?

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