furtest
34634f73c1
Add CTFs from 2024 to the content, htb apocalypse, spookyCTF, buckeye ctf and some edits to the 404 ctf
71 lines
1.8 KiB
Markdown
71 lines
1.8 KiB
Markdown
+++
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date = '2024-06-22T15:41:13+02:00'
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draft = false
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title = 'Stop drop and roll'
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tags = [ 'misc' ]
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+++
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A simple misc challenge which involves using a TCP connection to play a simple game in which you have to answer to a request with specific words.
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For exemple : `GORGE FIRE PHREAK` must be answered to by `STOP-ROLL-DROP`
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To do so I wrote a simple python script :
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```python
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import socket
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import time
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def main():
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# Connect to the server
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.connect(("83.136.249.153", 30914))
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s.recv(4096).decode()
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s.sendall(b"y\n") # We must send 'y' to start the game
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message = s.recv(1024).decode()[19:] # We receive the data
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print(message)
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while True:
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response = create_response(handle_input(message)) # And we answer
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print(response)
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time.sleep(0.5)
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s.sendall(response.encode())
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time.sleep(0.5)
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message = s.recv(4096).decode() # And we start again
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print(message)
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def create_response(input:list) -> str:
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back = str()
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for mon in input:
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# Add the correct word
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if mon == "GORGE":
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back += "STOP"
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elif mon == "FIRE":
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back += "ROLL"
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elif mon == "PHREAK":
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back += "DROP"
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back += "-"
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back = back[:-1] # Remove the last '-'
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back += "\n"
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return back
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def handle_input(input:str) -> list:
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# Transform the data into a list to make it easier to handle
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data_raw = str()
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for c in input:
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data_raw += c
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if c == "\n": break
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data = list()
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word = str()
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for c in data_raw:
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if c != "," and c != " " and c != "\n":
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word += c
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elif c == ",":
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data.append(word)
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word = ""
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data.append(word)
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return data
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if __name__ == "__main__":
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main()
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```
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