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<개인공부> - IT/[CTF (Write up)]

UTCTF 19' Write-up / Low Sodium Bagel

by Aggies '19 2019. 3. 15.
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This one is also an interesting problem. I downloaded a picture from the server and I opened it. 

I could see a bagel image. Actually, I am a newbie of CTF competition so whenever I see the picture I always have an assumption that picture has a hidden message, which is steganography. So I tried to decode it. There are tons of steganographic decoder website, however, below one only supports jpeg file. And I simply got the flag


> https://futureboy.us/stegano/decinput.html

Flag : utflag{b1u3b3rry_b4g3ls_4r3_th3_b3st}

Reference site : https://utctf.live/challenges#Low%20Sodium%20Bagel

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