Misc: Another Discord

Task:

Author: daffainfo

TCP1P has another discord server?
https://discord.gg/kzrryCUutP 

Solution:

You are given a discord server, upon joining, you see two channels. A text channel, and a voice channel.

The thing that sticks out the most is the fact that there is an event going on. Just click on Event Details and you should see a flag there. This implies that the challenge requires you to go through some discord stuff to find the code. Anyways, we have part 3.

Part 3: 45_r341ly

Next part is just like other discord challenges typically present in CTF. You have to either search for the channels, the roles, or both. Let's start with the roles.

You can use this curl command to get all the roles in a server:

curl -sH "AUTHORIZATION: (discord token here)" https://discordapp.com/api/v6/guilds/{guild.id}/roles

I don't need to write about getting your discord token, since there's 2000 guides out there. Just know that you shouldn't share it with anyone. Anyways, running this will result in this role showing up inside the list:

...
"name":"Part 2: d0cUM3n74710n_W"

Cool, let's do the same with channels

curl -sH "AUTHORIZATION: (discord token here)" https://discordapp.com/api/v6/guilds/{guild.id}/channels

And then, we get:

...
"name":"Part 4: _H31pFu1}

So, now we have:

d0cUM3n74710n_W45_r341ly_H31pFu1}

But where's Part 1? Well, recently, Discord added a new thing that is rarely used, called the text channels inside voice channels, or something like that. When you hover over a voice channel, there's the new text icon that pops up, click it, then you will see the flag.

Part 1: TCP1P{d15c0RD_

So the full flag is

Flag:

TCP1P{d15c0RD_d0cUM3n74710n_W45_r341ly_H31pFu1}

Resources

Discord Developer Guide