Contents

RITSEC CTF - Misc - Scrumptions Snacks


Misc - Scrumptions Snacks - writeup

description

Sheamus the STEGOsaurus is hungry! He’s somewhat secretive about his favorite snack spot, but he’ll gladly share his secret if you say the word: “lunch”. Can you identify the name of Sheamus’ favorite food establishment?

writeup

So I first downloaded the file ‘stegosaurus.jpg’.

Let’s see what we have here:

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mv ~/Downloads/stegosaurus.jpg .
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file stegosaurus.jpg 
stegosaurus.jpg: JPEG featuredImage data, JFIF standard 1.01, resolution (DPI), density 168x168, segment length 16, baseline, precision 8, 964x910, components 3

It is a JPEG file so steganography is possible.

According to stegdetect there is no steganography hidden in here …

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stegdetect ./stegosaurus.jpg 
./stegosaurus.jpg : negative

Ok so that does not lead to anything ….

In the task description there stands:

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He's somewhat secretive about his favorite snack spot, but he'll gladly share his secret if you say the word: "lunch".

So I tried to extract any steganography using steghide with the password ’lunch'

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steghide extract -sf stegosaurus.jpg -p lunch -xf solved.txt

The extracted data was written to a file ‘solved.txt’

let’s see what’s inside !

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cat solved.txt

39.95187791397735, -75.17117334360019

Mhh … What is that?

I suppose these have to be the coordinates of his favorite snack spot!

Let’s fire up google maps and input the above coordinates!

I found this:

/featuredImages/google_maps.png

On that google maps page I found this featuredImage:

/featuredImages/sweetgreen.png

The establishment seems to be called ‘sweetgreen’

So the flag is

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RS{sweetgreen}