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Jett's blog · Apr 18, 2022

dctf 2022 Safe Space writeup

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The problem link to the problem(requires login) Solution First, connect to the remote server: nc 51.124.222.205 13379 After interacting with the server, you’ll find that the server is a python REPL with a lot of charcters and functions such as " unavaliable. This type of problem is called python sandbox escape, or python jail. After trying all the commands from the internet, you’ll…

The problem link to the problem(requires login) Solution First, connect to the remote server: nc 51.124.222.205 13379 After interacting with the server, you’ll find that the server is a python REPL with a lot of charcters and functions such as " unavaliable. This type of problem is called python sandbox escape, or python jail. After trying all the commands from the internet, you’ll find that the command __builtins__ is not banned for this problem.

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