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Darknet – Hacking Tools, Hacker News & Cyber Security

Darknet - Hacking Tools, Hacker News & Cyber Security

Darknet is your best source for the latest hacking tools, hacker news, cyber security best practices, ethical hacking & pen-testing.

Seth – RDP Man In The Middle Attack Tool

September 12, 2017

Views: 10,663

Seth is an RDP Man In The Middle attack tool written in Python to MiTM RDP connections by attempting to downgrade the connection in order to extract clear text credentials.

Seth - RDP Man In The Middle Attack Tool

It was developed to raise awareness and educate about the importance of properly configured RDP connections in the context of pentests, workshops or talks.

Usage of Seth RDP Man In The Middle Attack Tool

Run it like this:

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$ ./seth.sh <INTERFACE> <ATTACKER IP> <VICTIM IP> <GATEWAY IP|HOST IP>

Unless the RDP host is on the same subnet as the victim machine, the last IP address must be that of the gateway.

The script performs ARP spoofing to gain a Man-in-the-Middle position and redirects the traffic such that it runs through an RDP proxy. The proxy can be called separately:

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$ ./rdp-cred-sniffer.py -h
usage: rdp-cred-sniffer.py [-h] [-d] [-p LISTEN_PORT] [-b BIND_IP]
                           [-g {0,1,3,11}] -c CERTFILE -k KEYFILE
                           target_host [target_port]
 
RDP credential sniffer -- Adrian Vollmer, SySS GmbH 2017
 
positional arguments:
  target_host           target host of the RDP service
  target_port           TCP port of the target RDP service (default 3389)
 
optional arguments:
  -h, --help            show this help message and exit
  -d, --debug           show debug information
  -p LISTEN_PORT, --listen-port LISTEN_PORT
                        TCP port to listen on (default 3389)
  -b BIND_IP, --bind-ip BIND_IP
                        IP address to bind the fake service to (default all)
  -g {0,1,3,11}, --downgrade {0,1,3,11}
                        downgrade the authentication protocol to this (default
                        3)
  -c CERTFILE, --certfile CERTFILE
                        path to the certificate file
  -k KEYFILE, --keyfile KEYFILE
                        path to the key file

Requirements for Seth RDP MiTM Attack Tool

  • python3
  • tcpdump
  • arpspoof (arpspoof is part of dsniff)
  • openssl < 1.1.0f

OpenSSL should not be too recent, as it does not support older versions of the SSL protocol and thus may be incompatible with older version of the Windows RDP client.

You can check out the full paper here:

– Attacking RDP How to Eavesdrop on Poorly Secured RDP Connections

There’s also another related tool which can extract RDP sessions:

– SessionGopher – Session Extraction Tool

You can download Seth for RDP MiTM here:

Seth-master.zip

Or read more here.

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Filed Under: Hacking Tools Tagged With: rdp



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