├── LICENSE ├── README.md ├── awsdigger ├── __init__.py ├── __main__.py ├── api.py ├── awsdigger.py ├── filter.py └── session.py └── requirements.txt /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # awsdigger 2 | 3 | This tool was created to facilitate the security assessment of IAM resources in AWS environments. It provides a filter languague to look for overprivileged roles, trust relationships and to calculate effective IAM policies. 4 | 5 | Futher information https://medium.com/edge-security/abusing-aws-cross-account-relationships-3b36a111b494 6 | 7 | This is WIP: 8 | * It is still under development and it has the minimum functionality. 9 | * AWS policy syntax is very flexible and therefore it is difficult to support all the "NotAction", "Action", "Deny", "Allow", different services, resources, conditions, actions and wildcards. 10 | * Managed policies are not supported 11 | 12 | # Language 13 | 14 | The following clauses are allowed: 15 | 16 | * Type 17 | * Effective 18 | * Trusted 19 | * KeyId 20 | * Name 21 | * Arn 22 | * PolicyName 23 | * Action 24 | * Resource 25 | * Condition 26 | * Effect 27 | 28 | Operators: 29 | 30 | * = 31 | * != 32 | * =~ 33 | * !~ 34 | * ~ 35 | 36 | # Examples: 37 | 38 | * Find trust relationships 39 | 40 | ``` 41 | $ python -m awsdigger --filter "Trusted~'arn:aws:iam::123456789012:root'" 42 | 43 | $ python -m awsdigger --filter "Action~'sts:AssumeRole' 44 | ``` 45 | 46 | * Find overprivileged roles 47 | 48 | ``` 49 | $ python -m awsdigger --filter "Action='iam:*' and Resource='*' 50 | 51 | $ python -m awsdigger --filter "Effective~'iam:PutUserPolicy' or Effective~'CreateGroup' or Effective~'CreateUser' or Effective~'UpdateGroup' or Effective~'AttachGroupPolicy' " 52 | ``` 53 | -------------------------------------------------------------------------------- /awsdigger/__init__.py: -------------------------------------------------------------------------------- 1 | from .session import Session 2 | from .api import dig 3 | -------------------------------------------------------------------------------- /awsdigger/__main__.py: -------------------------------------------------------------------------------- 1 | from .awsdigger import main 2 | 3 | main() 4 | -------------------------------------------------------------------------------- /awsdigger/api.py: -------------------------------------------------------------------------------- 1 | from .session import Session 2 | 3 | def dig(**kwargs): 4 | return Session(**kwargs).dig() 5 | -------------------------------------------------------------------------------- /awsdigger/awsdigger.py: -------------------------------------------------------------------------------- 1 | from .session import Session 2 | 3 | import pprint 4 | 5 | pp = pprint.PrettyPrinter(indent=4) 6 | 7 | 8 | def print_item(item, session): 9 | verbose = session['verbose'] 10 | 11 | print("\n* Type: {} Name: {}".format(item['_type'], item['Name'])) 12 | 13 | if len(item.get('Trusted', [])) > 0: 14 | print("* Trusted relationships:") 15 | for trusted in item.get('Trusted', []): 16 | print("\t+ {}".format(trusted)) 17 | 18 | if verbose: 19 | print("* Effective IAM permissions:") 20 | 21 | for eff in sorted(item['Effective']): 22 | print("\t+ {}".format(eff)) 23 | 24 | if not session['onlytrusted']: 25 | print("* Matched policies:") 26 | for policy in item['Policies']: 27 | if isinstance(policy['PolicyDocument']['Statement'], list): 28 | for p in policy['PolicyDocument']['Statement']: 29 | if p['visible']: 30 | print("+ Policy: {}".format(policy['PolicyName'])) 31 | pp.pprint(p) 32 | elif verbose: 33 | print("- Policy: {}".format(policy['PolicyName'])) 34 | pp.pprint(p) 35 | else: 36 | if policy['PolicyDocument']['Statement']['visible'] is True: 37 | print("+ Policy: {}".format(policy['PolicyName'])) 38 | pp.pprint(policy['PolicyDocument']['Statement']) 39 | elif verbose: 40 | print("- Policy: {}".format(policy['PolicyName'])) 41 | pp.pprint(policy['PolicyDocument']['Statement']) 42 | 43 | 44 | def main(): 45 | my_session = Session().parse_cli() 46 | 47 | for item in my_session.dig(): 48 | print_item(item, my_session.options) 49 | 50 | if __name__ == '__main__': 51 | main() 52 | -------------------------------------------------------------------------------- /awsdigger/filter.py: -------------------------------------------------------------------------------- 1 | import re 2 | from pyparsing import QuotedString, oneOf, Group, Optional, ZeroOrMore, Suppress, ParseException, delimitedList, printables, Word 3 | 4 | 5 | class Filter: 6 | def __init__(self, filter_string): 7 | self.filter_string = filter_string 8 | 9 | quoted_str_value = QuotedString('\'', unquoteResults=True, escChar='\\') 10 | #quoted_str_value = delimitedList(Word(printables, excludeChars=',')) 11 | operator = oneOf("and or") 12 | not_operator = Optional(oneOf("not"), "notpresent") 13 | 14 | 15 | statement_symbols = oneOf("Type Effective Trusted KeyId Name Arn PolicyName Action Resource Condition Effect").setParseAction(self.__compute_statement_symbol) 16 | 17 | definition = Group(statement_symbols + oneOf("= != =~ !~ ~") + quoted_str_value).setParseAction(self.__compute_expr) 18 | 19 | definition_not = not_operator + definition 20 | definition_expr = definition_not + ZeroOrMore(operator + definition_not) 21 | nested_definition = Group(Suppress("(") + definition_expr + Suppress(")")) 22 | nested_definition_not = not_operator + nested_definition 23 | 24 | self.finalformula = (nested_definition_not ^ definition_expr) + ZeroOrMore(operator + (nested_definition_not ^ definition_expr)) 25 | 26 | definition_not.setParseAction(self.__compute_not_operator) 27 | nested_definition_not.setParseAction(self.__compute_not_operator) 28 | nested_definition.setParseAction(self.__compute_formula) 29 | self.finalformula.setParseAction(self.__myreduce) 30 | 31 | def __compute_expr(self, tokens): 32 | leftvalue, operator, rightvalue = tokens[0] 33 | 34 | if operator == "=": 35 | if isinstance(leftvalue, list): 36 | return any(map(lambda a: a == rightvalue, leftvalue)) 37 | else: 38 | return leftvalue == rightvalue 39 | elif operator == "!=": 40 | if isinstance(leftvalue, list): 41 | return any(map(lambda a: a != rightvalue, leftvalue)) 42 | else: 43 | return leftvalue != rightvalue 44 | elif operator == "=~": 45 | regex = re.compile(rightvalue, re.MULTILINE | re.DOTALL) 46 | if isinstance(leftvalue, list): 47 | return any(map(lambda a: regex.search(a) is not None, leftvalue)) 48 | else: 49 | return regex.search(leftvalue) is not None 50 | elif operator == "!~": 51 | if isinstance(leftvalue, list): 52 | return any(map(lambda a: rightvalue.lower() not in a.lower(), leftvalue)) 53 | else: 54 | return rightvalue.lower() not in leftvalue.lower() 55 | elif operator == "~": 56 | if isinstance(leftvalue, list): 57 | return any(map(lambda a: rightvalue.lower() in a.lower(), leftvalue)) 58 | else: 59 | return rightvalue.lower() in leftvalue.lower() 60 | 61 | def __compute_not_operator(self, tokens): 62 | operator, value = tokens 63 | 64 | if operator == "not": 65 | return not value 66 | 67 | return value 68 | 69 | def __compute_formula(self, tokens): 70 | return self.__myreduce(tokens[0]) 71 | 72 | def __myreduce(self, elements): 73 | first = elements[0] 74 | for i in range(1, len(elements), 2): 75 | if elements[i] == "and": 76 | first = (first and elements[i+1]) 77 | elif elements[i] == "or": 78 | first = (first or elements[i+1]) 79 | 80 | return first 81 | 82 | def __compute_statement_symbol(self, tokens): 83 | def add_statement_to_list(key, statement): 84 | list_statement = [] 85 | 86 | if key in statement: 87 | if isinstance(statement[key], list): 88 | for elem in statement[key]: 89 | list_statement.append(elem) 90 | else: 91 | list_statement.append(statement[key]) 92 | 93 | return list_statement 94 | 95 | try: 96 | if tokens[0] == "Type": 97 | return [self.role['_type']] 98 | elif tokens[0] in ["Effective", "Name", "Arn", 'KeyId', "PolicyName", "Trusted"]: 99 | return [self.role[tokens[0]]] 100 | else: 101 | if isinstance(self.statement[tokens[0]], list): 102 | return [self.statement[tokens[0]]] 103 | else: 104 | return [[self.statement[tokens[0]]]] 105 | except TypeError: 106 | return [""] 107 | except KeyError: 108 | return [""] 109 | 110 | def is_visible(self, role, statement): 111 | self.role = role 112 | self.statement = statement 113 | try: 114 | return self.finalformula.parseString(self.filter_string, parseAll=True)[0] 115 | except ParseException: 116 | raise Exception("Incorrect language expression") 117 | -------------------------------------------------------------------------------- /awsdigger/session.py: -------------------------------------------------------------------------------- 1 | from .filter import Filter 2 | 3 | import boto3 4 | import sys 5 | import getopt 6 | import _pickle as pickle 7 | import gzip 8 | import os.path 9 | 10 | import threading 11 | from queue import Queue 12 | 13 | iam_actions = [ 14 | "iam:ResetServiceSpecificCredential", 15 | "iam:UpdateServiceSpecificCredential", 16 | "iam:EnableMFADevice", 17 | "iam:ListUsers", 18 | "iam:CreateServiceLinkedRole", 19 | "iam:ListRolePolicies", 20 | "iam:PutRolePolicy", 21 | "iam:DeleteAccountPasswordPolicy", 22 | "iam:ListSSHPublicKeys", 23 | "iam:ListAttachedUserPolicies", 24 | "iam:AddUserToGroup", 25 | "iam:UpdateAssumeRolePolicy", 26 | "iam:ListEntitiesForPolicy", 27 | "iam:DeleteServiceLinkedRole", 28 | "iam:ListServerCertificates", 29 | "iam:ListAccountAliases", 30 | "iam:PassRole", 31 | "iam:GetContextKeysForCustomPolicy", 32 | "iam:ListInstanceProfiles", 33 | "iam:ListMFADevices", 34 | "iam:UploadSigningCertificate", 35 | "iam:DeleteRole", 36 | "iam:SimulateCustomPolicy", 37 | "iam:CreateServiceSpecificCredential", 38 | "iam:UpdateRoleDescription", 39 | "iam:ResyncMFADevice", 40 | "iam:AttachGroupPolicy", 41 | "iam:ListAttachedRolePolicies", 42 | "iam:ListPoliciesGrantingServiceAccess", 43 | "iam:GetInstanceProfile", 44 | "iam:UpdateAccessKey", 45 | "iam:AddClientIDToOpenIDConnectProvider", 46 | "iam:ListGroupPolicies", 47 | "iam:DeleteOpenIDConnectProvider", 48 | "iam:CreateInstanceProfile", 49 | "iam:PutUserPolicy", 50 | "iam:ChangePassword", 51 | "iam:GenerateServiceLastAccessedDetails" 52 | "iam:CreateOpenIDConnectProvider", 53 | "iam:GetOpenIDConnectProvider", 54 | "iam:DeleteGroup", 55 | "iam:DeleteRolePolicy", 56 | "iam:ListServiceSpecificCredentials", 57 | "iam:ListRoles", 58 | "iam:CreateSAMLProvider", 59 | "iam:ListPolicyVersions", 60 | "iam:DeleteSSHPublicKey", 61 | "iam:CreateGroup", 62 | "iam:CreateUser", 63 | "iam:ListAccessKeys", 64 | "iam:UploadServerCertificate", 65 | "iam:GetRole", 66 | "iam:UploadSSHPublicKey", 67 | "iam:RemoveRoleFromInstanceProfile", 68 | "iam:UpdateSigningCertificate", 69 | "iam:DeleteLoginProfile", 70 | "iam:UpdateUser", 71 | "iam:ListVirtualMFADevices", 72 | "iam:GetSAMLProvider", 73 | "iam:AttachRolePolicy", 74 | "iam:UpdateAccountPasswordPolicy", 75 | "iam:CreatePolicy", 76 | "iam:DeleteServiceSpecificCredential", 77 | "iam:GetServiceLinkedRoleDeletionStatus", 78 | "iam:GetGroupPolicy", 79 | "iam:GetServiceLastAccessedDetailsWithEntities", 80 | "iam:DetachUserPolicy", 81 | "iam:GetLoginProfile", 82 | "iam:DeleteUserPolicy", 83 | "iam:UpdateLoginProfile", 84 | "iam:GetPolicyVersion", 85 | "iam:AddRoleToInstanceProfile", 86 | "iam:UpdateServerCertificate", 87 | "iam:DeactivateMFADevice", 88 | "iam:GetAccountPasswordPolicy", 89 | "iam:GetUser", 90 | "iam:DeleteVirtualMFADevice", 91 | "iam:DeletePolicyVersion", 92 | "iam:GetServiceLastAccessedDetails", 93 | "iam:RemoveUserFromGroup", 94 | "iam:AttachUserPolicy", 95 | "iam:UpdateOpenIDConnectProviderThumbprint", 96 | "iam:GetAccessKeyLastUsed", 97 | "iam:DeleteGroupPolicy", 98 | "iam:DeleteAccountAlias", 99 | "iam:GetGroup", 100 | "iam:UpdateSSHPublicKey", 101 | "iam:CreateAccessKey", 102 | "iam:DetachRolePolicy", 103 | "iam:GetSSHPublicKey", 104 | "iam:ListAttachedGroupPolicies", 105 | "iam:CreateAccountAlias", 106 | "iam:DeleteSigningCertificate", 107 | "iam:ListGroupsForUser", 108 | "iam:ListOpenIDConnectProviders", 109 | "iam:UpdateSAMLProvider", 110 | "iam:ListInstanceProfilesForRole", 111 | "iam:CreateVirtualMFADevice", 112 | "iam:ListGroups", 113 | "iam:DeleteUser", 114 | "iam:GetAccountAuthorizationDetails", 115 | "iam:DeletePolicy", 116 | "iam:ListSigningCertificates", 117 | "iam:PutGroupPolicy", 118 | "iam:RemoveClientIDFromOpenIDConnectProvider", 119 | "iam:ListPolicies", 120 | "iam:GetContextKeysForPrincipalPolicy", 121 | "iam:GenerateCredentialReport", 122 | "iam:SetDefaultPolicyVersion", 123 | "iam:CreateRole", 124 | "iam:CreatePolicyVersion", 125 | "iam:GetAccountSummary", 126 | "iam:GetServerCertificate", 127 | "iam:DetachGroupPolicy", 128 | "iam:DeleteSAMLProvider", 129 | "iam:GetUserPolicy", 130 | "iam:GetCredentialReport", 131 | "iam:DeleteAccessKey", 132 | "iam:DeleteServerCertificate", 133 | "iam:ListUserPolicies", 134 | "iam:ListSAMLProviders", 135 | "iam:GetRolePolicy", 136 | "iam:DeleteInstanceProfile", 137 | "iam:CreateLoginProfile", 138 | "iam:SimulatePrincipalPolicy", 139 | "iam:UpdateGroup", 140 | "iam:GetPolicy" 141 | ] 142 | 143 | help_msg = """ 144 | usage: %s 145 | -h: This help 146 | --filter : Look for the indicated role 147 | """ % sys.argv[0] 148 | 149 | 150 | class Walker: 151 | def __init__(self, options): 152 | self.options = options 153 | 154 | def get_walker_prop(self): 155 | return [ 156 | { 157 | '_type': 'roles', 158 | 'list': 'list_roles', 159 | 'name': 'RoleName', 160 | 'id': 'RoleName', 161 | 'list_policies': 'list_role_policies', 162 | 'get_policy': 'get_role_policy', 163 | }, 164 | { 165 | '_type': 'groups', 166 | 'list': 'list_groups', 167 | 'name': 'GroupName', 168 | 'id': 'GroupName', 169 | 'list_policies': 'list_group_policies', 170 | 'get_policy': 'get_group_policy', 171 | }, 172 | { 173 | '_type': 'users', 174 | 'list': 'list_users', 175 | 'name': 'UserName', 176 | 'id': 'UserId', 177 | 'list_policies': 'list_user_policies', 178 | 'get_policy': 'get_user_policy', 179 | } 180 | ] 181 | 182 | def get_iam_actions(self, string, difference=False): 183 | ret = [] 184 | wildcard = string.find("*") 185 | 186 | if wildcard > 0: 187 | ret = [iam for iam in iam_actions if iam.startswith(string[:wildcard])] 188 | elif wildcard == 0: 189 | ret = iam_actions 190 | elif string in iam_actions: 191 | ret = [string] 192 | 193 | if difference: 194 | return list(set(iam_actions).difference(set(ret))) 195 | 196 | return ret 197 | 198 | def get_effective_policy(self, my_item): 199 | def compute_statement(statement, allow, deny): 200 | resource = statement.get('Resource', '') 201 | 202 | if isinstance(resource, list): 203 | if '*' not in resource and not any(map(lambda a: a.startswith('arn:aws:iam::'), resource)): 204 | return [] 205 | else: 206 | if resource != '*' and not resource.startswith('arn:aws:iam::'): 207 | return [] 208 | 209 | condition_keys = [key for key_list in [cond[1].keys() for cond in statement.get('Condition', {}).items()] for key in key_list] 210 | if 'aws:MultiFactorAuthAge' in condition_keys and len(statement.get('Condition', {}).items()) > 1: 211 | return [] 212 | elif 'aws:MultiFactorAuthAge' not in condition_keys and len(statement.get('Condition', {}).items()) > 0: 213 | return [] 214 | 215 | action_list = statement.get('Action', []) if isinstance(statement.get('Action', []), list) else [statement.get('Action', "")] 216 | not_action_list = statement.get('NotAction', []) if isinstance(statement.get('NotAction', []), list) else [statement.get('NotAction', "")] 217 | if statement.get('Effect', '') == 'Allow': 218 | for action in filter(lambda a: a.startswith('iam:') or a == '*', action_list): 219 | allow += self.get_iam_actions(action) 220 | for action in not_action_list: 221 | allow += self.get_iam_actions(action, True) 222 | elif statement.get('Effect', '') == 'Deny': 223 | for action in filter(lambda a: a.startswith('iam:') or a == '*', action_list): 224 | deny += self.get_iam_actions(action) 225 | for action in not_action_list: 226 | deny += self.get_iam_actions(action, True) 227 | else: 228 | raise Exception('Unknown Effect in statement') 229 | 230 | allow = [] 231 | deny = [] 232 | for policy in my_item['Policies']: 233 | statement = policy.get('PolicyDocument', {}).get('Statement', []) 234 | 235 | if isinstance(statement, list): 236 | for statement in statement: 237 | compute_statement(statement, allow, deny) 238 | else: 239 | compute_statement(statement, allow, deny) 240 | 241 | return list(set(allow).difference(set(deny))) 242 | 243 | def rip_role(self, item, props): 244 | client = boto3.client('iam') 245 | my_item = { 246 | 'Name': item[props['name']], 247 | 'Arn': item['Arn'], 248 | 'Policies': [], 249 | 'KeyId': [], 250 | 'Effective': [], 251 | 'Trusted': [], 252 | '_type': props['_type'] 253 | } 254 | 255 | if 'AssumeRolePolicyDocument' in item: 256 | for principal in [i['Principal'] for i in item['AssumeRolePolicyDocument']['Statement'] if i['Effect'] == 'Allow']: 257 | for val in principal.values(): 258 | if isinstance(val, list): 259 | my_item['Trusted'] += val 260 | else: 261 | my_item['Trusted'].append(val) 262 | 263 | if props['_type'] == 'users': 264 | # List access keys through the pagination interface. 265 | paginator = client.get_paginator('list_access_keys') 266 | for response in paginator.paginate(UserName=my_item['Name']): 267 | for keyinfo in response['AccessKeyMetadata']: 268 | my_item['KeyId'].append(keyinfo['AccessKeyId']) 269 | 270 | inner_paginator = client.get_paginator(props["list_policies"]) 271 | for inner_page in inner_paginator.paginate(**dict([(props['name'], item[props['name']])])).result_key_iters(): 272 | for item_policy_name in inner_page: 273 | my_item['Policies'].append({ 274 | 'PolicyName': item_policy_name, 275 | 'PolicyDocument': getattr(client, props['get_policy']) 276 | (**dict([(props['name'], item[props['name']]), ('PolicyName', item_policy_name)]))['PolicyDocument'] 277 | }) 278 | 279 | my_item['Effective'] = self.get_effective_policy(my_item) 280 | 281 | return my_item 282 | 283 | def get_walker_items_nocache(self): 284 | client = boto3.client('iam') 285 | 286 | for props in self.get_walker_prop(): 287 | if self.options.get('verbose', False): 288 | print("Digging current AWS {}...".format(props.get('_type'))) 289 | 290 | paginator = client.get_paginator(props["list"]) 291 | for page in paginator.paginate().result_key_iters(): 292 | for item in page: 293 | yield self.rip_role(item, props) 294 | 295 | def get_walker_items_nocache_threaded(self): 296 | def get_walker_items_thread(props, queue): 297 | client = boto3.client('iam') 298 | 299 | paginator = client.get_paginator(props["list"]) 300 | for page in paginator.paginate().result_key_iters(): 301 | for item in page: 302 | queue.put(self.rip_role(item, props)) 303 | 304 | queue.put(None) 305 | 306 | thread_list = [] 307 | queue = Queue() 308 | 309 | for props in self.get_walker_prop(): 310 | if self.options.get('verbose', False): 311 | print("Digging current AWS {}...".format(props.get('_type'))) 312 | th = threading.Thread(target=get_walker_items_thread, args=(props, queue)) 313 | thread_list.append(th) 314 | th.start() 315 | 316 | num_workers = len(thread_list) 317 | 318 | while 1: 319 | item = queue.get() 320 | 321 | if item is None: 322 | num_workers -= 1 323 | else: 324 | yield item 325 | 326 | if num_workers <= 0: 327 | break 328 | 329 | for th in thread_list: 330 | th.join() 331 | 332 | def get_walker_items(self, cache=True): 333 | if cache: 334 | return self.get_walker_items_cache() 335 | else: 336 | return self.get_walker_items_nocache_threaded() 337 | 338 | def get_walker_items_cache(self): 339 | my_cache = self.options['cache'] 340 | use_cache = my_cache is not None and os.path.exists(my_cache) and os.path.isfile(my_cache) 341 | output_fn = None 342 | 343 | if use_cache and my_cache is not None: 344 | try: 345 | with gzip.open(my_cache, 'r+b') as output: 346 | while 1: 347 | item = pickle.load(output) 348 | yield item 349 | except EOFError: 350 | raise StopIteration 351 | else: 352 | output_fn = None 353 | if my_cache is not None: 354 | try: 355 | output_fn = gzip.open(my_cache, 'w+b') 356 | except IOError: 357 | print("Error open {} for writing cache".format(my_cache)) 358 | output_fn = None 359 | 360 | # for role in self.get_walker_items_nocache(): 361 | for role in self.get_walker_items_nocache_threaded(): 362 | if output_fn is not None: 363 | pickle.dump(role, output_fn) 364 | yield role 365 | 366 | 367 | class Session: 368 | def __init__(self, options=None): 369 | self.options = { 370 | 'filter': None, 371 | 'cache': None, 372 | 'type': "roles", 373 | 'onlytrusted': False, 374 | 'verbose': False 375 | } 376 | 377 | if options is not None: 378 | self.options.update(options) 379 | 380 | @staticmethod 381 | def parse_cli(): 382 | try: 383 | opts, args = getopt.getopt(sys.argv[1:], 'h', ['filter=', 'verbose', 'dump', 'cache=', 'type=', 'onlytrusted']) 384 | except getopt.error as msg: 385 | sys.stdout = sys.stderr 386 | print(help_msg) 387 | print(msg) 388 | sys.exit(2) 389 | 390 | my_session = Session() 391 | 392 | for opt, value in opts: 393 | if opt == '-h': 394 | print(help_msg) 395 | sys.exit(2) 396 | if opt == '--filter': 397 | my_session.options['filter'] = Filter(value) 398 | elif opt == '--cache': 399 | my_session.options['cache'] = value 400 | elif opt == '--verbose': 401 | my_session.options['verbose'] = True 402 | elif opt == '--onlytrusted': 403 | my_session.options['onlytrusted'] = True 404 | elif opt == '--type': 405 | if value not in ['groups', 'roles', 'users']: 406 | raise Exception("Incorrect type value!") 407 | 408 | my_session.options['type'] = value 409 | 410 | if not my_session.validate(): 411 | sys.stdout = sys.stderr 412 | print(help_msg) 413 | sys.exit(2) 414 | 415 | return my_session 416 | 417 | def validate(self): 418 | if self.options.get('filter') is None: 419 | return False 420 | 421 | return True 422 | 423 | def dig(self, **kwargs): 424 | self.options.update(kwargs) 425 | 426 | role_walk = Walker(self.options) 427 | 428 | for item in role_walk.get_walker_items(): 429 | res = [] 430 | for policy in item['Policies']: 431 | if isinstance(policy['PolicyDocument']['Statement'], list): 432 | for statement in policy['PolicyDocument']['Statement']: 433 | statement['visible'] = self.options['filter'].is_visible(item, statement) 434 | res.append(statement['visible']) 435 | else: 436 | statement = policy['PolicyDocument']['Statement'] 437 | statement['visible'] = self.options['filter'].is_visible(item, statement) 438 | res.append(statement['visible']) 439 | else: 440 | if self.options['filter'].is_visible(item, []): 441 | res.append(True) 442 | 443 | if any(res): 444 | yield item 445 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | boto3 2 | pyparsing 3 | --------------------------------------------------------------------------------