> For the complete documentation index, see [llms.txt](https://alyrezo.gitbook.io/nahamcon-ctf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alyrezo.gitbook.io/nahamcon-ctf/binary-exploitation/see-the-world.md).

# See the World

Author: @Kkevsterrr#7469

## What should we do?

We're very protective over our guy, even with his eight cylinders under the hood! he's dying for an *exodus* into the world, even if he lacks the *intelligence* to do so safely (i mean, it doesn't even have a sandbox!)\
\
anyway, if you give us an IP and it all checks out, we'll let him pop by and check it out for a bit, and let him see the world. what's the worst that could happen?\
\
(The flag is safe with us though, at `/flag.txt`.)

```bash
user@pc:~/Desktop$ nc challenge.nahamcon.com <port>
welcome to our browser! give me an IP and, if it checks out, we'll let him visit.
>>> localhost
what is this nonsense
>>> 127.0.0.1
hm maybe this is fine, gotta check it though before the browser can visit...this IP didn't even give me a 200! That's not good enough for our browser to visit.
>>> 192.168.1.1
hm maybe this is fine, gotta check it though before the browser can visit...this IP didn't even give me a 200! That's not good enough for our browser to visit.
>>>
```

## What did we do!