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Revert "Feature/async scan"

This commit is contained in:
itaymmguardicore 2018-01-19 10:05:48 +02:00 committed by GitHub
parent a91b5cc489
commit c1efeb7cc1
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 49 additions and 124 deletions
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6
chaos_monkey/exploit/rdpgrinder.py
View File

@ -13,7 +13,7 @@ from exploit import HostExploiter
from exploit.tools import HTTPTools, get_monkey_depth
from exploit.tools import get_target_monkey
from model import RDP_CMDLINE_HTTP_BITS, RDP_CMDLINE_HTTP_VBS
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from tools import build_monkey_commandline
__author__ = 'hoffer'
@ -245,7 +245,7 @@ class RdpExploiter(HostExploiter):
return True
if not self.host.os.get('type'):
is_open, _ = check_tcp_port(self.host.ip_addr, RDP_PORT)
is_open, _ = check_port_tcp(self.host.ip_addr, RDP_PORT)
if is_open:
self.host.os['type'] = 'windows'
return True
@ -254,7 +254,7 @@ class RdpExploiter(HostExploiter):
def exploit_host(self):
global g_reactor
is_open, _ = check_tcp_port(self.host.ip_addr, RDP_PORT)
is_open, _ = check_port_tcp(self.host.ip_addr, RDP_PORT)
if not is_open:
LOG.info("RDP port is closed on %r, skipping", self.host)
return False

6
chaos_monkey/exploit/smbexec.py
View File

@ -7,7 +7,7 @@ from exploit import HostExploiter
from exploit.tools import SmbTools, get_target_monkey, get_monkey_depth
from model import MONKEY_CMDLINE_DETACHED_WINDOWS, DROPPER_CMDLINE_DETACHED_WINDOWS
from network import SMBFinger
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from tools import build_monkey_commandline
LOG = getLogger(__name__)
@ -31,12 +31,12 @@ class SmbExploiter(HostExploiter):
return True
if not self.host.os.get('type'):
is_smb_open, _ = check_tcp_port(self.host.ip_addr, 445)
is_smb_open, _ = check_port_tcp(self.host.ip_addr, 445)
if is_smb_open:
smb_finger = SMBFinger()
smb_finger.get_host_fingerprint(self.host)
else:
is_nb_open, _ = check_tcp_port(self.host.ip_addr, 139)
is_nb_open, _ = check_port_tcp(self.host.ip_addr, 139)
if is_nb_open:
self.host.os['type'] = 'windows'
return self.host.os.get('type') in self._TARGET_OS_TYPE

4
chaos_monkey/exploit/sshexec.py
View File

@ -7,7 +7,7 @@ import monkeyfs
from exploit import HostExploiter
from exploit.tools import get_target_monkey, get_monkey_depth
from model import MONKEY_ARG
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from tools import build_monkey_commandline
__author__ = 'hoffer'
@ -41,7 +41,7 @@ class SSHExploiter(HostExploiter):
if servdata.get('name') == 'ssh' and servkey.startswith('tcp-'):
port = int(servkey.replace('tcp-', ''))
is_open, _ = check_tcp_port(self.host.ip_addr, port)
is_open, _ = check_port_tcp(self.host.ip_addr, port)
if not is_open:
LOG.info("SSH port is closed on %r, skipping", self.host)
return False

4
chaos_monkey/exploit/win_ms08_067.py
View File

@ -17,7 +17,7 @@ from impacket.dcerpc.v5 import transport
from exploit.tools import SmbTools, get_target_monkey, get_monkey_depth
from model import DROPPER_CMDLINE_WINDOWS, MONKEY_CMDLINE_WINDOWS
from network import SMBFinger
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from tools import build_monkey_commandline
from . import HostExploiter
@ -168,7 +168,7 @@ class Ms08_067_Exploiter(HostExploiter):
if not self.host.os.get('type') or (
self.host.os.get('type') in self._TARGET_OS_TYPE and not self.host.os.get('version')):
is_smb_open, _ = check_tcp_port(self.host.ip_addr, 445)
is_smb_open, _ = check_port_tcp(self.host.ip_addr, 445)
if is_smb_open:
smb_finger = SMBFinger()
if smb_finger.get_host_fingerprint(self.host):

7
chaos_monkey/network/sshfinger.py
View File

@ -1,8 +1,7 @@
import re
from model.host import VictimHost
from network import HostFinger
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from model.host import VictimHost
SSH_PORT = 22
SSH_SERVICE_DEFAULT = 'tcp-22'
@ -39,7 +38,7 @@ class SSHFinger(HostFinger):
self._banner_match(name, host, banner)
return
is_open, banner = check_tcp_port(host.ip_addr, SSH_PORT, TIMEOUT, True)
is_open, banner = check_port_tcp(host.ip_addr, SSH_PORT, TIMEOUT, True)
if is_open:
host.services[SSH_SERVICE_DEFAULT] = {}

28
chaos_monkey/network/tcp_scanner.py
View File

@ -1,7 +1,8 @@
import time
from random import shuffle
from network import HostScanner, HostFinger
from network.tools import check_tcp_ports
from model.host import VictimHost
from network.tools import check_port_tcp
__author__ = 'itamar'
@ -16,24 +17,29 @@ class TcpScanner(HostScanner, HostFinger):
return self.get_host_fingerprint(host, True)
def get_host_fingerprint(self, host, only_one_port=False):
"""
Scans a target host to see if it's alive using the tcp_target_ports specified in the configuration.
:param host: VictimHost structure
:param only_one_port: Currently unused.
:return: T/F if there is at least one open port. In addition, the host object is updated to mark those services as alive.
"""
assert isinstance(host, VictimHost)
count = 0
# maybe hide under really bad detection systems
target_ports = self._config.tcp_target_ports[:]
shuffle(target_ports)
ports, banners = check_tcp_ports(host.ip_addr, target_ports, self._config.tcp_scan_timeout / 1000.0)
for target_port, banner in zip(ports, banners):
for target_port in target_ports:
is_open, banner = check_port_tcp(host.ip_addr,
target_port,
self._config.tcp_scan_timeout / 1000.0,
self._config.tcp_scan_get_banner)
if is_open:
count += 1
service = 'tcp-' + str(target_port)
host.services[service] = {}
if banner:
host.services[service]['banner'] = banner
if only_one_port:
break
else:
time.sleep(self._config.tcp_scan_interval / 1000.0)
return len(ports) != 0
return count != 0

96
chaos_monkey/network/tools.py
View File

@ -1,11 +1,9 @@
import logging
import select
import socket
import select
import logging
import struct
import time
DEFAULT_TIMEOUT = 10
SLEEP_BETWEEN_POLL = 0.5
BANNER_READ = 1024
LOG = logging.getLogger(__name__)
@ -34,18 +32,10 @@ def struct_unpack_tracker_string(data, index):
"""
ascii_len = data[index:].find('\0')
fmt = "%ds" % ascii_len
return struct_unpack_tracker(data, index, fmt)
return struct_unpack_tracker(data,index,fmt)
def check_tcp_port(ip, port, timeout=DEFAULT_TIMEOUT, get_banner=False):
"""
Checks if a given TCP port is open
:param ip: Target IP
:param port: Target Port
:param timeout: Timeout for socket connection
:param get_banner: if true, pulls first BANNER_READ bytes from the socket.
:return: Tuple, T/F + banner if requested.
"""
def check_port_tcp(ip, port, timeout=DEFAULT_TIMEOUT, get_banner=False):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(timeout)
@ -53,7 +43,7 @@ def check_tcp_port(ip, port, timeout=DEFAULT_TIMEOUT, get_banner=False):
sock.connect((ip, port))
except socket.timeout:
return False, None
except socket.error as exc:
except socket.error, exc:
LOG.debug("Check port: %s:%s, Exception: %s", ip, port, exc)
return False, None
@ -64,21 +54,14 @@ def check_tcp_port(ip, port, timeout=DEFAULT_TIMEOUT, get_banner=False):
read_ready, _, _ = select.select([sock], [], [], timeout)
if len(read_ready) > 0:
banner = sock.recv(BANNER_READ)
except socket.error:
except:
pass
sock.close()
return True, banner
def check_udp_port(ip, port, timeout=DEFAULT_TIMEOUT):
"""
Checks if a given UDP port is open by checking if it replies to an empty message
:param ip: Target IP
:param port: Target port
:param timeout: Timeout to wait
:return: Tuple, T/F + banner
"""
def check_port_udp(ip, port, timeout=DEFAULT_TIMEOUT):
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.settimeout(timeout)
@ -89,71 +72,8 @@ def check_udp_port(ip, port, timeout=DEFAULT_TIMEOUT):
sock.sendto("-", (ip, port))
data, _ = sock.recvfrom(BANNER_READ)
is_open = True
except socket.error:
except:
pass
sock.close()
return is_open, data
def check_tcp_ports(ip, ports, timeout=DEFAULT_TIMEOUT, get_banner=False):
"""
Checks whether any of the given ports are open on a target IP.
:param ip: IP of host to attack
:param ports: List of ports to attack. Must not be empty.
:param timeout: Amount of time to wait for connection.
:param get_banner: T/F if to get first packets from server
:return: list of open ports. If get_banner=True, then a matching list of banners.
"""
sockets = [socket.socket(socket.AF_INET, socket.SOCK_STREAM) for _ in range(len(ports))]
[s.setblocking(0) for s in sockets]
port_attempts = []
try:
for sock, port in zip(sockets, ports):
LOG.debug("Connecting to port %d" % port)
err = sock.connect_ex((ip, port))
if err == 0:
port_attempts.append((port, sock))
if err == 10035: # WSAEWOULDBLOCK is valid, see https://msdn.microsoft.com/en-us/library/windows/desktop/ms740668%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
port_attempts.append((port, sock))
if len(port_attempts) != 0:
num_replies = 0
timeout = int(round(timeout)) # clamp to integer, to avoid checking input
time_left = timeout
write_sockets = []
read_sockets = []
while num_replies != len(port_attempts):
# bad ports show up as err_sockets
read_sockets, write_sockets, err_sockets = \
select.select(
[s[1] for s in port_attempts],
[s[1] for s in port_attempts],
[s[1] for s in port_attempts],
time_left)
# any read_socket is automatically a writesocket
num_replies = len(write_sockets) + len(err_sockets)
if num_replies == len(port_attempts) or time_left <= 0:
break
else:
time_left -= SLEEP_BETWEEN_POLL
time.sleep(SLEEP_BETWEEN_POLL)
connected_ports_sockets = [x for x in port_attempts if x[1] in write_sockets]
LOG.debug(
"On host %s discovered the following ports %s" %
(str(ip), ",".join([str(x) for x in connected_ports_sockets])))
banners = []
if get_banner:
# read first X bytes
banners = [sock.recv(BANNER_READ) if sock in read_sockets else ""
for port, sock in connected_ports_sockets]
pass
# try to cleanup
[s[1].close() for s in port_attempts]
return [port for port, sock in connected_ports_sockets], banners
else:
return [], []
except socket.error as exc:
LOG.warning("Exception when checking ports on host %s, Exception: %s", str(ip), exc)
return [], []

4
chaos_monkey/tunnel.py
View File

@ -8,7 +8,7 @@ from threading import Thread
from model import VictimHost
from network.firewall import app as firewall
from network.info import local_ips, get_free_tcp_port
from network.tools import check_tcp_port
from network.tools import check_port_tcp
from transport.base import get_last_serve_time
__author__ = 'hoffer'
@ -40,7 +40,7 @@ def _check_tunnel(address, port, existing_sock=None):
sock = existing_sock
LOG.debug("Checking tunnel %s:%s", address, port)
is_open, _ = check_tcp_port(address, int(port))
is_open, _ = check_port_tcp(address, int(port))
if not is_open:
LOG.debug("Could not connect to %s:%s", address, port)
if not existing_sock: