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Changelog

All notable changes to this project will be documented in this file.

[1.19.0]

Additions

  • Add support for python 3.14

[1.18.0]

Removals

  • Remove support for python 3.9

[1.17.2]

Updates

  • Truncate metric arguments to 4000 characters

[1.17.1]

Updates

  • Solve low-severity warnings for better readability
  • Add support for repo_name in config

[1.17.0]

Additions

  • Add support for python 3.13
  • Add RequestCertificate to wildcard whitelist @undergroundwires (#308)

Removals

  • Remove support for python 3.8

[1.16.0]

Additions

  • Added 2 new filter functions: set and sorted

[1.15.7]

Updates

  • Bumped pycfmodel to use pydantic v2

Other updates

  • Add PR template @w0rmr1d3r (#279)

[1.15.6]

Fixes

  • Fix logo in pypi @ignaciobolonio (#274)

Updates

  • Update .readthedocs.yaml @jsoucheiron (#275)

Bumps

  • Bump actions/setup-python from 4 to 5 (#270)
  • Bump cryptography from 42.0.3 to 42.0.4 (#272)

[1.15.5]

Changes

  • Migrate to pyproject.toml @jsoucheiron (#269)
  • Add dependabot config @w0rmr1d3r (#257)

[1.15.4]

Fixes

  • Fix KMSKeyWildcardPrincipalRule to work without a KMS policy
  • Fix release drafter template to show PR titles

Updates

  • Bumped minimum pycfmodel version to 0.22.0

[1.15.3]

Changes

  • Update invalid_role_inline_policy_fn_if.json
  • Improve logging for the exception when applying rule filters
  • Add release drafter

[1.15.2]

Fixes

[1.15.1]

Fixes

  • Fix docs generation

[1.15.0]

Additions

  • New rules: PublicELBCheckerRule, StackNameMatchesRegexRule, and StorageEncryptedRule
  • New regex: REGEX_ALPHANUMERICAL_OR_HYPHEN to check if stack name only consists of alphanumerical characters and hyphens.
  • Config has a few extra methods that should make handling Filters easier

[1.14.0]

Additions

  • Config includes a metrics logger, and it is called to register when a filter is used

Fixes

  • Update dependency constraints with pydash, to be able to support newer versions and fix security issues
  • Fix typo in base_rule actions #237
  • (internal) Updating PyPi release workflow

[1.13.2]

Fixes

  • Fixes docs formatting with #235

[1.13.1]

Fixes

  • Fixes GenericResourcePartialWildcardPrincipalRule and GenericCrossAccountTrustRule message, since sometimes it was bad-formatted in markdown.

[1.13.0]

Additions

  • Default logging level from INFO to WARNING #230

Updates

  • GenericResourceWildcardPrincipalRule (therefore GenericResourcePartialWildcardPrincipalRule and GenericResourceFullWildcardPrincipalRule as well) now ignores AWS::KMS::ReplicaKey. It as the same use case as a AWS::KMS::Key.

Fixes

  • Update GenericWildcardPrincipalRule, FullWildcardPrincipalRule, GenericResourceWildcardPrincipalRule and GenericResourceFullWildcardPrincipalRule message, since sometimes it was bad-formatted in markdown.

[1.12.0]

Improvements

  • Refactored the KMSKeyWildcardPrincipalRule rule

Updates

  • Update GenericWildcardPrincipalRule, PartialWildcardPrincipalRule and GenericResourcePartialWildcardPrincipalRule message
  • Update docs

Fixes

  • Fix GenericWildcardPrincipalRule that could add a false-positive
  • Fix GenericWildcardPrincipalRule that wasn't handling canonical IDs
  • Fix REGEX_PARTIAL_WILDCARD_PRINCIPAL to correctly handle canonical IDs and account IDs
  • Fix unit tests

[1.11.0]

Additions

  • New regex REGEX_CONTAINS_WILDCARD to check for any wildcard

Updates

  • GenericResourceWildcardPolicyRule now uses REGEX_CONTAINS_WILDCARD instead of REGEX_HAS_STAR_OR_STAR_AFTER_COLON.
  • Bump dev dependency moto to ==3.1.9.

[1.10.0]

Improvements

  • GenericCrossAccountTrustRule can now scan IAM Roles correctly as CrossAccountTrustRule does

Additions

  • New rule: RDSSecurityGroupIngressOpenToWorldRule

Updates

  • Bumped minimum pycfmodel version to 0.20.0

[1.9.0]

Improvements

  • CFRipper is now compatible with Python3.10
  • CFRipper is now able to detect new types of wildcard usage.
  • Default config will now detect lambda resource wildcards as through IAM overpowered roles.

Updates

  • Bump dev dependency moto to allow >=3.0.0.

[1.8.0]

Improvements

  • Pin click to at least version 8.0.0.
  • Update black to 22.3.0, and run make format with this new version of black.

[1.7.1]

Fixes

  • EBSVolumeHasSSERule can now understand encrypted_status if modelled as a bool.
  • Add support to EC2SecurityGroupOpenToWorldRule for use cases where ports are not defined in the CloudFormation template. By default, this means all ports are included.

Updates

  • Updated EBSVolumeHasSSERule to iterate only over AWS::EC2::Volume resources.
  • Update RuleConfig documentation.

Improvements

  • Bump pycfmodel to 0.18.0.

[1.7.0]

Updates

  • Added resource_types to failures.

[1.6.0]

Updates

  • Created GenericResourceWildcardPrincipalRule to be an abstract for wildcard principals for Generic resources.
  • Created GenericResourcePartialWildcardPrincipalRule and GenericResourceFullWildcardPrincipalRule to evaluate Generic resources.

Fixes

  • Rollback GenericWildcardPrincipalRule as it was in 1.5.2.

[1.5.3]

Updates

  • Updates GenericWildcardPrincipalRule to understand the GenericResource.

Fixes

  • Stopped using _statement_as_list() when retrieving statements in favor of statement_as_list().

[1.5.2]

Updates

  • Updates WildcardResourceRule for a better use with the GenericResource.

Fixes

  • Stopped using _statement_as_list() when retrieving statements in several rules in favor of statement_as_list().

[1.5.1]

Updates

  • Created GenericResourceWildcardPolicyRule in order to check for WildcardPolicy issues in generic resources.
  • Added documentation regarding the deprecation of S3BucketPolicyWildcardActionRule, SNSTopicPolicyWildcardActionRule and SQSQueuePolicyWildcardActionRule.
  • Covering cases for already mapped models in rules inherited from GenericWildcardPolicyRule with the new GenericResourceWildcardPolicyRule.

[1.5.0]

Updates

  • Created GenericCrossAccountTrustRule in order to check for CrossAccount issues for generic resources.
  • Added documentation regarding the deprecation of S3CrossAccountTrustRule, KMSKeyCrossAccountTrustRule, ElasticsearchDomainCrossAccountTrustRule and OpenSearchDomainCrossAccountTrustRule.
  • Covering cases for already mapped models in rules inherited from CrossAccountCheckingRule with the new GenericCrossAccountTrustRule.

Improvements

  • Bump pycfmodel to 0.17.0

Fixes

  • Stopped using _statement_as_list() when retrieving statements in CrossAccountCheckingRule in favor of statement_as_list().

[1.4.2] - 2022-2-28

Fixes

  • Fix how make install-dev works, it will install dependencies from make install first.

Improvements

  • Bump dev dependency moto from 1.3.13 to 1.3.14.

[1.4.1] - 2022-2-24

Improvements

  • Bump pycfmodel to 0.16.3

[1.4.0] - 2022-2-21

Fixes

  • Fix CI, updated tests to work with pycfmodel latest version which includes the use of the Generic.

Improvements

  • Bump and fixed required dependency pycfmodel to be at least 0.16.2.
  • Bump several dependencies:
    • boto3 to 1.21.2
    • botocore to 1.24.2
    • cfn-flip to 1.3.0
    • pydantic to 1.9.0
    • python-dateutil to 2.8.2
    • pyyaml to 6.0
    • s3transfer to 0.5.1
    • typing-extensions to 4.1.1
    • urllib3 to 1.26.8

[1.3.3] - 2022-2-3

Fixes

  • Fix CI, force pycfmodel to use version 0.13.0.

[1.3.2] - 2022-2-3

Updates

  • Stop logging when conditions are ignored in CrossAccountCheckingRule, KMSKeyWildcardPrincipalRule, S3BucketPolicyPrincipalRule, SQSQueuePolicyPublicRule and GenericWildcardPrincipalRule.

[1.3.1] - 2022-1-17

Fixes

  • Fixes CrossAccountCheckingRule when checking resources without PROPERTY_WITH_POLICYDOCUMENT.

[1.3.0] - 2022-1-17

Improvements

  • Add ElasticsearchDomainCrossAccountTrustRule and OpenSearchDomainCrossAccountTrustRule
  • Bump pycfmodel to 0.13.0

[1.2.2] - 2022-1-07

Improvements

  • Bump pycfmodel to 0.11.1

[1.2.1] - 2021-12-24

Fixes

  • The WildcardResourceRule would fail if it received a policy document that was a string. It was expecting all policy documents to be a dictionary. Some AWS services allow for string policies though (e.g. AWS::Logs::ResourcePolicy). The rule has been updated to handle string policies by attempting to convert it to a dictionary.

[1.2.0] - 2021-11-03

Updates

  • The rules EC2SecurityGroupOpenToWorldRule and EC2SecurityGroupIngressOpenToWorldRule were by default allowing ports 80 and 443. This has now been migrated to use a filter object, that can be optionally applied. See the README for further details. This means if the filter is not applied, Security Groups open to the world on ports 80 and 443 will start failing in CFRipper.

[1.1.2] - 2021-10-06

Fixes

  • Add a fix to the KMSKeyEnabledKeyRotation rule to be able to detect the EnableKeyRotation property properly.

[1.1.1] - 2021-09-30

Fixes

[1.1.0] - 2021-09-22

Improvements

  • Add S3ObjectVersioning rule
  • Update pycfmodel to 0.11.0
    • This includes model support for S3 Buckets. Rules against these resources have been updated (alongside tests).

[1.0.9] - 2021-09-10

Improvements

  • Update valid AWS Account IDs that might be included as principals on policies.
  • This list now covers ELB Logs, CloudTrail Logs, Redshift Audit, and ElastiCache backups.
  • WildCardResourceRule is now triggered by resources that only limit by service (ex: arn:aws:s3:::*)

[1.0.8] - 2021-08-18

Improvements

  • Add S3LifecycleConfiguraton rule

[1.0.7] - 2021-08-16

Improvements

  • Add KMSKeyEnabledKeyRotation rule
  • Bump pycfmodel to 0.10.4

[1.0.6] - 2021-07-28

Improvements

  • Add S3BucketPublicReadAclRule rule

[1.0.5] - 2021-07-28

Improvements

  • Add EKS permissions that accept wildcard resource only

[1.0.4] - 2021-06-03

Improvements

  • Add stack_id to log output when failing to convert a YML template to JSON.
  • Various minor test improvements
  • Added CLI args for aws account id and aws principals
  • Fix an issue in S3BucketPublicReadAclAndListStatementRule where it could crash if the model was unresolved
  • Center logo (thanks @lpmi-13)
  • Run tests in python 3.9

[1.0.3] - 2021-03-26

Improvements

  • Downgrade logging severity from exception to warning when there is no stack in AWS

[1.0.2] - 2021-03-25

Improvements

  • Handle AWS throttling errors when listing exports for a given account and region
  • If we get a throttling error, we actually sleep for some time before retrying (before we were sleeping for 0 seconds)

[1.0.1] - 2021-03-25

Improvements

  • Decrease logging level when loading external filters
  • Decrease logging level on known AWS errors such as AccessDenied when listing exports and throttling errors on getting a template from AWS CloudFormation.

[1.0.0] - 2021-03-16

Breaking changes

  • Filter include the set of rules in which it is applied.
  • RuleConfig only contains rule_mode and risk_value now.
  • Removes old whitelisting methods in favour of Filters
  • Rename RuleMode.WHITELISTED to RuleMode.ALLOWED, and all whitelist word in strings.
  • Add debug flag to Filter class.

Improvements

[0.23.3] - 2021-02-11

Additions

  • All rules now support filter contexts!

Improvements

  • Update WildcardResourceRule to allow for certain resources to be excluded.

[0.23.2] - 2021-02-04

Bugfix

  • GenericWildcardPrincipalRule to ignore account IDs where full or partial wildcard is required in the Principal. These accounts should be AWS Service Accounts defined in the config.
  • Fix CLI flag --rules-config-file

Improvements

  • Update ResourceSpecificRule to allow for certain resources to be excluded. In particular, the PrivilegeEscalationRule will now no longer be invoked for S3BucketPolicy resources.
  • Add rules config for Kinesis Data Firehose IPs that can be applied

[0.23.1] - 2021-01-26

Improvements

  • Add more X-Ray permissions that accept wildcard resource only
  • CLI handles case of empty template by returning appropriate exception message
  • CLI now returns exit code 2 for scenarios where CFRipper finds a template violating any of the rules

[0.23.0] - 2021-01-20

Breaking changes

  • Rule config files using filters must now use ingress_obj and not ingress.

Additions

  • Rules using IP Address Ranges now export both ingress_obj and ingress_ip filter fields.
  • Add support to load an external rules configuration file

[0.22.0] - 2020-12-11

Breaking changes

  • Classes inheriting from ResourceSpecificRule now must allow an extra field in the resource_invoke function

Improvements

  • Improved context data for BaseDangerousPolicyActions and classes inheriting from it

Bugfix

  • CrossAccountCheckingRule did not check properly for calculated mock fields.

[0.21.1] - 2020-12-9

Improvements

  • Add SNS actions that only allow wildcards

[0.21.0] - 2020-11-30

Improvements

  • Upgraded to pycfmodel 0.8.1 (this will improve policy action detection)
  • Refactored a few classes to use improvements from new base classes and pycfmodel
  • PrivilegeEscalationRule now detects issues in all policies

Additions

  • New Rules: SNSTopicDangerousPolicyActionsRule and SQSDangerousPolicyActionsRule
  • New abstract base rule: BaseDangerousPolicyActions

Fixes

  • Various typo fixes

[0.20.1] - 2020-10-26

Improvements

  • Added more actions that only allow wildcard as resource

Fixes

  • Require pycfmodel 0.7.2

Other

  • Bump pip-tools dev requirement to 5.3.1

[0.20.0] - 2020-09-30

Improvements

  • Add WildcardResourceRule rule

[0.19.2] - 2020-09-16

Improvements

  • Add regex:ignorecase filter function

[0.19.1] - 2020-09-01

Improvements

  • Add support for this new S3 url format: https://bucket.s3.aws-region.amazonaws.com/path1/path2

[0.19.0] - 2020-05-21

Breaking changes

  • rule_mode is now BLOCKING for all Rules.

[0.18.1] - 2020-04-14

Fixed

  • CrossAccountCheckingRule calling add_failure_to_result on UNDEFINED_ was missing context variable.

[0.18.0] - 2020-04-07

Improvements

  • EC2SecurityGroupIngressOpenToWorldRule, EC2SecurityGroupMissingEgressRule and EC2SecurityGroupOpenToWorldRule include support for filters.
  • EC2SecurityGroupIngressOpenToWorldRule and EC2SecurityGroupOpenToWorldRule support adding errors for port ranges.

Breaking changes

  • Config.DEFAULT_ALLOWED_WORLD_OPEN_PORTS type changes to List[int]
  • Rename SecurityGroupIngressOpenToWorldRule to EC2SecurityGroupIngressOpenToWorldRule
  • Rename SecurityGroupMissingEgressRule to EC2SecurityGroupMissingEgressRule
  • Rename SecurityGroupOpenToWorldRule to EC2SecurityGroupOpenToWorldRule
  • Improved message for users when failing the SecurityGroupOpenToWorldRule and SecurityGroupIngressOpenToWorldRule rules.
  • Improved documentation for the above rules, including styling fixes which have now been tested.

[0.17.2] - 2020-04-01

Improvements

  • Improved message for users when failing the SecurityGroupOpenToWorldRule and SecurityGroupIngressOpenToWorldRule rules.
  • Improved documentation for the above rules, including styling fixes which have now been tested.

[0.17.1] - 2020-03-30

Improvements

  • Add exists and empty functions to filters
  • Add param_resolver to filters to evaluate just necessary params

Fixed

  • Add protection when a filter is evaluated to catch the exception and continue

[0.17.0] - 2020-03-27

Improvements

  • CrossAccountCheckingRule, CrossAccountTrustRule, S3CrossAccountTrustRule and KMSKeyCrossAccountTrustRule include support for filters.

Breaking changes

  • CrossAccountCheckingRule now includes the invoke method. Statements of PolicyDocument are now analysed using RESOURCE_TYPE and PROPERTY_WITH_POLICYDOCUMENT class variables.

[0.16.0] - 2020-03-27

Improvements

  • Add new RuleConfig, allows to overwrite the default behaviour of the rule changing rule mode and risk value.
  • Add new Filter, allows setting custom rule configuration to matching coincidences.
  • New RuleModes supported: RuleMode.DISABLED and RuleMode.WHITELISTED.

Breaking changes

  • Class variables Rule.RULE_MODE and Rule.RISK_VALUE should be changed to use properties rule_mode and risk_value. These properties take in consideration the custom config that might be applied.
  • If rule mode is DISABLED or WHITELISTED; methods add_failure_to_result and add_warning_to_result will have no effect.
  • add_failure_to_result and add_warning_to_result accepts a new optional parameter named context. This variable is going to be evaluated by filters defined in the custom config.

[0.15.1] - 2020-03-26

Improvements

  • SecurityGroupOpenToWorldRule and SecurityGroupIngressOpenToWorldRule are now more accurately scoped to block potentially public CIDR ranges. It it utilising the latest pycfmodel release (0.7.0).

[0.15.0] - 2020-03-25

Improvements

  • Generate DEFAULT_RULES and BASE_CLASSES using code instead of hardcoding

Fixed

  • Whitelist did not work if it didn't have the Rule prefix

Breaking changes

  • Sufix KMSKeyWildcardPrincipal and SecurityGroupIngressOpenToWorld with Rule
  • Sufix whitelist constant FullWildcardPrincipal and PartialWildcardPrincipal with Rule

[0.14.2] - 2020-03-04

Improvements

  • Update dependencies

[0.14.1] - 2020-02-24

Improvements

  • Rule processor now accepts an extras parameter that will be forwarded to the rules
  • Main gets extra information from the event and forwards it to the rule formatter

[0.14.0] - 2020-02-07

Breaking changes

  • Completely changed base Rule abstract class signature and adapted rule classes to match it:
    • Init now only takes a Config
    • invoke method now accepts an optional extra Dict
    • invoke method returns a Result instead of None
    • add_failure has been renamed to add_failure_to_result. It now takes a result instead of a reason (that now it's inferred)
    • add_warning has been renamed to add_warning_to_result. It now has the same signature than add_failure_to_result

Improvements

  • Rule Invoke extras parameter has been added to allow changing the rule behaviour depending on state besides the cfmodel itself:
    • Stack naming rules
    • Stack tags
    • User restrictions
    • ...

[0.13.0] - 2020-01-22

Fixed

  • Regular expressions had an unescaped '.' before 'amazonaws.com', so it might match more hosts than expected.

Changed

  • CloudFormationAuthenticationRule now in MONITOR mode and new test added
  • IAMRoleWildcardActionOnPolicyRule combines three previous unused rules in IAMManagedPolicyWildcardActionRule, IAMRoleWildcardActionOnPermissionsPolicyRule, and IAMRoleWildcardActionOnTrustPolicyRule
  • IAMRoleWildcardActionOnPolicyRule now in DEBUG mode
  • S3BucketPolicyWildcardActionRule has now been changed to be an instantiation of the new generic rule GenericWildcardPolicyRule. It is set in DEBUG mode
  • S3BucketPolicyWildcardActionRule has had updated regex filter to make it more aligned with both further rules to do with wildcards in actions, and the existing SQSQueuePolicyWildcardActionRule
  • SQSQueuePolicyWildcardActionRule has now been changed to be an instantiation of the new generic rule GenericWildcardPolicyRule. It is set in DEBUG mode
  • SecurityGroupMissingEgressRule now in DEBUG mode and a new test added
  • SNSTopicPolicyWildcardActionRule has beed added. It is an instantiation of the new generic rule GenericWildcardPolicyRule. It is set in DEBUG mode

Breaking changes

  • The following rules are no longer available:
    • IAMRoleWildcardActionOnPermissionsPolicyRule
    • IAMRoleWildcardActionOnTrustPolicyRule
    • IAMManagedPolicyWildcardActionRule
  • The following rules have been moved:
    • S3BucketPolicyWildcardActionRule
    • SQSQueuePolicyWildcardActionRule

[0.12.2] - 2020-01-13

Improvements

  • Documentation updated to show the risk of rules and possible fixes where available, as well as a large set of updates to the content. The macros for parsing the documentation have also been updated.

[0.12.1] - 2020-01-09

Fixes

  • Fix for CrossAccountCheckingRule was adding errors when the principal was sts when it shouldn't.

Added

  • get_account_id_from_sts_arn and get_aws_service_from_arn in utils.

[0.12.0] - 2020-01-08

Added

  • Adds CLI to package
  • KMSKeyCrossAccountTrustRule

Changed

  • GenericWildcardPrincipalRule, PartialWildcardPrincipalRule, FullWildcardPrincipalRule no longer check for wildcards in KMSKey principals.
  • Improved granularity of most rules

[0.11.3] - 2019-12-17

Improvements

  • S3CrossAccountTrustRule now accepts resource level exceptions
  • New documentation!

Breaking changes

  • cfripper.rules.s3_bucked_policy renamed to cfripper.rules.s3_bucket_policy (typo)

[0.11.2] - 2019-11-26

Fixes

  • Fix get_template when AWS doesn't return a dict.

[0.11.1] - 2019-11-25

Changed

  • HardcodedRDSPasswordRule now reports two different messages when there is a missing echo or a readable password.

Fixes

  • HardcodedRDSPasswordRule was wrongly adding an error when a value is provided.

[0.11.0] - 2019-11-20

Breaking changes

  • Moved some files from model to rules, renamed rules to match pythonic style. Moved tons of classes around

Fixes

  • Fix a regression that caused S3CrossAccountTrustRule and CrossAccountTrustRule not to alert whenever cross-account permissions are found within the allowed list of aws accounts.
  • CrossAccountTrustRule wrongly say that AWS canonical ids and services were a cross-account relationship.

[0.10.2] - 2019-11-20

Added

  • Added PrincipalCheckingRule, it has a property called valid_principals. It's a list with all allowed principals. This list can be customized using _get_whitelist_from_config().
  • Added AWS_ELASTICACHE_BACKUP_CANONICAL_IDS which contains the aws canonical ids used for backups.

Changed

  • CrossAccountTrustRule outputs warning log message if the AWS Account ID is not present in the config.
  • HardcodedRDSPasswordRule updated to check for both RDS Clusters and RDS Instances, and reduce false positives on valid instances.
  • CrossAccountTrustRule, GenericWildcardPrincipalRule, S3BucketPolicyPrincipalRule, S3BucketPolicyPrincipalRule and S3CrossAccountTrustRule now check the account against a list. The list is composed of AWS service accounts, configured AWS principals and the account id where the event came from.
  • Rename AWS_ELB_ACCOUNT_IDS to AWS_ELB_LOGS_ACCOUNT_IDS

[0.10.1] - 2019-11-14

Added

  • New regexes and utility methods to get parts of arns

Changed

  • S3CrossAccountTrustRule and S3BucketPolicyPrincipalRule won't trigger if the principal comes from one of the AWS ELB service account ids

[0.10.0] - 2019-11-08

Added

  • New regex REGEX_IS_STAR, matches only a * character.

Changed

  • GenericWildcardPrincipalRule, S3BucketPolicyPrincipalRule, S3CrossAccountTrustRule, SQSQueuePolicyPublicRule and KMSKeyWildcardPrincipal now trust the condition to reduce false positives.
  • Rules check the resource type using isinstance instead of comparing type to a string if pycfmodel implements the resource.
  • Instance method add_failure now accepts risk_value and risk_mode as optional parameters.
  • CrossAccountTrustRule only runs if config has defined self._config.aws_account_id.
  • IAMRoleWildcardActionOnPermissionsPolicyRulenow uses REGEX_WILDCARD_POLICY_ACTION.

Fixed

  • IAMRolesOverprivilegedRule now uses REGEX_IS_STAR for finding statements instead of REGEX_CONTAINS_STAR.