Quotes (500 points)

No one will ever think about haxor quotes with flags inside.

go.ctf.site:16667

From our scanning results we can see that there is an IRC service running on port 16667. We can use the irssi command or hexchat to connect to the server.

16667/tcp open  irc
16697/tcp open  ssl/irc UnrealIRCd
| irc-info: 
|   users: 43
|   servers: 2
|   ops: 7
|   chans: 26
|   lusers: 36
|   lservers: 1
|_  server: go.ctf.site
| ssl-cert: Subject: commonName=go.ctf.site/organizationName=EKO{th3_f1rst_irc_fl4g}/stateOrProvinceName=Antioquia/countryName=CO
| Not valid before: 2023-10-22T03:44:22
|_Not valid after:  2033-10-19T03:44:22

After connecting to the server, we need to join all channels and look for quotes and I found that the BotServ will send a quote every users will execute the command /msg BotServ quotes #channel in chat.

/msg BotServ help quotes
    QUOTES RANDOM
    QUOTES #channel GET <text>
    QUOTES SEARCH <text>
    QUOTES SECRET <text>

Running the command /msg BotServ quotes search EKO will give us a result

BotServ Random quotes matching your query: 313337

So we can get the flag with the id 313337 with the command /msg BotServ quotes #general get 313337

FLAG: EKO{b4s1c_search}