Files
splunk-security_content/bin/docker_detection_tester/modules/validate_args.py
T
2022-08-22 17:38:49 -04:00

364 lines
14 KiB
Python

import argparse
import copy
import io
import json
import modules.jsonschema_errorprinter as jsonschema_errorprinter
import sys
from typing import Union
# If we want, we can easily add a description field to any of the objects here!
ES_APP_NAME = "SPLUNK_ES_CONTENT_UPDATE"
setup_schema = {
"type": "object",
"properties": {
"branch": {
"type": "string",
"default": "develop"
},
"commit_hash": {
"type": ["string", "null"],
"default": None
},
"container_tag": {
"type": "string",
"default": "latest"
},
"no_interactive_failure": {
"type": "boolean",
"default": False
},
"interactive": {
"type": "boolean",
"default": False
},
"detections_list": {
"type": ["array", "null"],
"items": {
"type": "string"
},
"default": None,
},
"apps": {
"type": "object",
"additionalProperties": False,
"patternProperties": {
"^.*$": {
"type": "object",
"additionalProperties": False,
"properties": {
"app_number": {
"type": ["integer", "null"]
},
"app_version": {
"type": ["string", "null"]
},
"local_path": {
"type": ["string", "null"]
},
"http_path": {
"type": ["string", "null"]
}
},
"anyOf": [
{"required": ["local_path"]},
{"required": ["http_path"]},
{"required": ["app_number", "app_version"]},
]
}
},
"default": {
# The default apps below were taken from the attack_range loadout: https://github.com/splunk/attack_range/blob/develop/attack_range.conf.template
"ADD_ON_FOR_LINUX_SYSMON": {
"app_number": 6176,
"app_version": "1.0.4",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/add-on-for-linux-sysmon_104.tgz"
},
ES_APP_NAME: {
"app_number": 3449,
"app_version": None,
"local_path": None
},
"PALO_ALTO_NETWORKS_ADD_ON_FOR_SPLUNK": {
"app_number": 2757,
"app_version": "7.1.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/palo-alto-networks-add-on-for-splunk_710.tgz"
},
"PYTHON_FOR_SCIENTIFIC_COMPUTING_FOR_LINUX_64_BIT": {
"app_number": 2882,
"app_version": "3.0.2",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/python-for-scientific-computing-for-linux-64-bit_302.tgz"
},
"SPLUNK_ADD_ON_FOR_AMAZON_KINESIS_FIREHOSE": {
"app_number": 3719,
"app_version": "1.3.2",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-amazon-kinesis-firehose_132.tgz"
},
"SPLUNK_ADD_ON_FOR_MICROSOFT_OFFICE_365": {
"app_number": 4055,
"app_version": "4.0.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-microsoft-office-365_400.tgz"
},
"SPLUNK_ADD_ON_FOR_MICROSOFT_WINDOWS": {
"app_number": 742,
"app_version": "8.5.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-microsoft-windows_850.tgz"
},
"SPLUNK_ADD_ON_FOR_NGINX": {
"app_number": 3258,
"app_version": "3.1.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-nginx_310.tgz"
},
"SPLUNK_ADD_ON_FOR_STREAM_FORWARDERS": {
"app_number": 5238,
"app_version": "8.1.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-stream-forwarders_810.tgz"
},
"SPLUNK_ADD_ON_FOR_STREAM_WIRE_DATA": {
"app_number": 5234,
"app_version": "8.1.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-stream-wire-data_810.tgz"
},
"SPLUNK_ADD_ON_FOR_SYSMON": {
"app_number": 5709,
"app_version": "3.0.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-sysmon_300.tgz"
},
"SPLUNK_ADD_ON_FOR_UNIX_AND_LINUX": {
"app_number": 833,
"app_version": "8.6.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-unix-and-linux_860.tgz"
},
"SPLUNK_APP_FOR_STREAM": {
"app_number": 1809,
"app_version": "8.1.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-app-for-stream_810.tgz"
},
"SPLUNK_COMMON_INFORMATION_MODEL": {
"app_number": 1621,
"app_version": "5.0.1",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-common-information-model-cim_501.tgz"
},
"SPLUNK_MACHINE_LEARNING_TOOLKIT": {
"app_number": 2890,
"app_version": "5.3.1",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-machine-learning-toolkit_531.tgz"
},
"SPLUNK_TA_FOR_ZEEK": {
"app_number": 5466,
"app_version": "1.0.5",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/ta-for-zeek_105.tgz"
},
"URL_TOOLBOX": {
"app_number": 2734,
"app_version": "1.9.2",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/url-toolbox_192.tgz"
},
"SPLUNK_TA_MICROSOFT_CLOUD_SERVICES": {
"app_number": 3110,
"app_version": "4.5.0",
"http_path": "https://attack-range-appbinaries.s3.us-west-2.amazonaws.com/Latest/splunk-add-on-for-microsoft-cloud-services_450.tgz"
}
}
},
"mode": {
"type": "string",
"enum": ["changes", "selected", "all"],
"default": "changes"
},
"num_containers": {
"type": "integer",
"minimum": 1,
"default": 1
},
"persist_security_content": {
"type": "boolean",
"default": False
},
"pr_number": {
"type": ["integer", "null"],
"default": None
},
"reuse_image": {
"type": "boolean",
"default": True
},
"show_splunk_app_password": {
"type": "boolean",
"default": False
},
"splunkbase_username": {
"type": ["string", "null"],
"default": None
},
"splunkbase_password": {
"type": ["string", "null"],
"default": None
},
"splunk_app_password": {
"type": ["string", "null"],
"default": None
},
"splunk_container_apps_directory": {
"type": "string",
"default": "/opt/splunk/etc/apps"
},
"local_base_container_name": {
"type": "string",
"default": "splunk_test_%d"
},
"mock": {
"type": "boolean",
"default": False
},
"folders": {
"type": "array",
"items": {
"type": "string",
"enum": ["endpoint", "cloud", "network", "web", "application", "experimental"]
},
"default": ["endpoint", "cloud", "network", "web", "application"]
},
"types": {
"type": "array",
"items": {
"type": "string",
"enum": ["Anomaly", "Hunting", "TTP"]
},
"default": ["Anomaly", "Hunting", "TTP"]
},
}
}
def validate_file(file: io.TextIOWrapper) -> tuple[Union[dict, None], dict]:
try:
settings = json.loads(file.read())
return validate(settings)
except Exception as e:
raise(e)
def check_dependencies(settings: dict, skip_password_accessibility_check: bool = True) -> bool:
# Check complex mode dependencies
error_free = True
# Make sure that all the mode arguments are sane
if settings['mode'] == 'selected':
# Make sure that exactly one of the following fields is populated
if settings['detections_list'] == None:
print("Error - mode was 'selected' but no detections_list was supplied.", file=sys.stderr)
error_free = False
if settings['mode'] != 'selected' and settings['detections_list'] != None:
print("Error - mode was not 'selected' but detections_list was supplied.", file=sys.stderr)
error_free = False
# Make sure that if we will be in an interactive mode, that either the user has provided the password or the password will be printed
if skip_password_accessibility_check:
pass
elif (settings['interactive'] or not settings['no_interactive_failure']) and settings['show_splunk_app_password'] is False:
print("\n\n******************************************************\n\n")
if settings['splunk_app_password'] is not None:
print("Warning: You have chosen an interactive mode, set show_splunk_app_password False,\n"
"and provided a password in the config file. We will NOT print this password to\n"
"stdout. Look in the config file for this password.", file=sys.stderr)
else:
print("Warning: You have chosen an interactive mode, set show_splunk_app_password False,\n"
"and DID NOT provide a password in the config file. We have updated show_splunk_app_password\n"
"to True for you. Otherwise, interactive mode login would be impossible.", file=sys.stderr)
settings['show_splunk_app_password'] = True
print("\n\n******************************************************\n\n")
# Returns true if there are not errors
return error_free
def validate_and_write(configuration: dict, output_file: Union[io.TextIOWrapper, None] = None, strip_credentials: bool = False, skip_password_accessibility_check: bool = True) -> tuple[Union[dict, None], dict]:
closeFile = False
if output_file is None:
import datetime
now = datetime.datetime.now()
configname = now.strftime('%Y-%m-%dT%H:%M:%S%z') + '-test-run.json'
output_file = open(configname, "w")
closeFile = True
if strip_credentials:
configuration = copy.deepcopy(configuration)
configuration['splunkbase_password'] = None
configuration['splunkbase_username'] = None
configuration['container_password'] = None
configuration['show_splunk_app_password'] = True
validated_json, setup_schema = validate(
configuration, skip_password_accessibility_check)
if validated_json == None:
print("Error in the new settings! No output file written")
else:
print("Settings updated. Writing results to: %s" %
(output_file.name))
try:
output_file.write(json.dumps(
validated_json, sort_keys=True, indent=4))
except Exception as e:
print("Error writing settings to %s: [%s]" % (
output_file.name, str(e)), file=sys.stderr)
sys.exit(1)
if closeFile is True:
output_file.close()
return validated_json, setup_schema
def validate(configuration: dict, skip_password_accessibility_check: bool = True) -> tuple[Union[dict, None], dict]:
# v = jsonschema.Draft201909Validator(argument_schema)
try:
validation_errors, validated_json = jsonschema_errorprinter.check_json(
configuration, setup_schema)
if len(validation_errors) == 0:
# check to make sure there were no complex errors
no_complex_errors = check_dependencies(
validated_json, skip_password_accessibility_check)
if no_complex_errors:
return validated_json, setup_schema
else:
print("Validation failed due to error(s) listed above.",
file=sys.stderr)
return None, setup_schema
else:
print("[%d] failures detected during validation of the configuration!" % (
len(validation_errors)), file=sys.stderr)
for error in validation_errors:
print(error, end="\n\n", file=sys.stderr)
return None, setup_schema
except Exception as e:
print("There was an error validation the configuration: [%s]" % (
str(e)), file=sys.stderr)
return None, setup_schema