Rating: 3.0
# Censorship
Upon connecting to the server, you have to solve a math problem to see the information.
```
$ nc p1.tjctf.org 8003
To prove you are worthy of this information, what is 4 + 4?
8
tjctf{[CENSORED]}
```
When you solve the problem, you get back `tjctf{[CENSORED]}`
I thought that the data might be hidden, so I made a python script to solve the math and print what it receives.
```python
from pwn import *
r = remote('p1.tjctf.org', 8003)
r.recvuntil("what is ")
problem = r.recvuntil("?").decode().replace("?", "")
print(problem)
r.send(str(eval(problem)))
r.send('\n')
r.interactive()
```
When you run the script, you can see the actual hidden flag.
```
$ py sol.py
[+] Opening connection to p1.tjctf.org on port 8003: Done
2 + 4
[*] Switching to interactive mode
tjctf{TH3_1llum1n4ti_I5_R3aL}tjctf{[CENSORED]}
[*] Got EOF while reading in interactive
```
Flag: `tjctf{TH3_1llum1n4ti_I5_R3aL}`
