251109_RootCipherCTF learning record
251109_RootCipherCTF learning record
cvestoneIn the full-stack CTF player program, this article will be continuously updated with recreated learning content
Attachments
Release 251109_RootCipherCTF · cvestone/cvestone.github.io · GitHub
EventInfo
ScoreBoard
My team 0xfun’s rank in this event - top 2:
crypto
JustTh!s
Desc
Just solve this.
Flag Format: RootCipher{xxxx}
Key Points:
misc
TokyoDrift - User&root
Desc
Tokyo holds hidden secrets buried deep within the panel. Only a true drifter can navigate through the twists and turns to uncover what lies beneath.
You need to perform deeper post-enumeration; linpeas may help you.
Challenge Link: https://thundercipher.tech/room/62
Author: p4nth3r
Level: Medium
Description: The streets of Tokyo never sleep — and neither does this web app.Start Machine Download Certificate
- What is the user flag?
- What is the root flag?
Key Points:
steganography
Nature
Desc
The environment is not just our home; it’s the source of life, and it’s our responsibility to protect it from harm.
Flag Format: RootCipher{xxxx}
Key Points:
Truth
Desc
Truth beyond the image.
Flag Format: RootCipher{xxxx}
Key Points:
Analyse this image, we find something special:
o42>6C2]42F89ED
decoded from ROT47: @camera.caughts, obviously it looks like an username, by osint way,we get it:
https://www.instagram.com/camera.caughts/
We can also see the metadata Spidey, maybe its a key from somewhere.
forensics
Last Character Standing(√)
Desc
ChatGPT accidentally leaked a flag—but it clipped off the final character. You’re given the almost-complete flag (every character except the last one).
https://chatgpt.com/share/69102a64-f3e0-8004-bb9c-0078aeae0ca
Key Points: GPT osint, markdown syntax
At the first time i tried to use some osint ways, like “Wayback Machine”, even though the old chatgpt shared conversation , maybe will be recorded in it, but didnt find anything.
Finally teammates said we should notice the Desc, the last character is wrong, so just add 1 in the end, because the Desc was edited by markdown syntax,as follows:
1 | [https://chatgpt.com/share/69102a64-f3e0-8004-bb9c-0078aeae0ca](https://chatgpt.com/share/69102a64-f3e0-8004-bb9c-0078aeae0ca) |
try to use some characters which looks like ), and 1 is suitable, after modified, search it:https://chatgpt.com/share/69102a64-f3e0-8004-bb9c-0078aeae0ca1:
RootCipher{FLag_Leaked_In_ChatGpt}
Damn it, it looks like a puzzled chall…i dont like, lmao.
Reveal
Desc
Why can’t I open this file?
Flag Format: RootCipher{xxxx}
Key Points:
Mesmerize
Desc
My phone has been buzzing with a lot of pings from messages and notifications all morning.
Flag Format: RootCipher{xxxx}
Key Points:
osint
The Wheel of Fate
Desc
A moment from the Kurukshetra battlefield has been captured in this image. Some details speak loudly, while others stay quiet, waiting for the observant. What you seek is not just in scripture, but in the ground where the scripture unfolded. Follow what is hidden.
Flag Format: RootCipher{xxxx}
Key Points:
hardware
Nano
Desc
Arduino nano
Flag Format: RootCipher{xxxx}
Key Points:
Firm-Image
Desc
I think there’s something wrong with this firmware; I can’t flash it onto my router.
Flag Format: RootCipher{xxxx}
Key Points:
Communication
Desc
We have intercepted communication between the devices.
Flag Format: RootCipher{xxxx}
