How to use the cfripper.rules.DEFAULT_RULES function in cfripper

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github Skyscanner / cfripper / tests / config / test_filter.py View on Github external
{
                                    "and": [
                                        {"exists": {"ref": "resource.Properties.RoleName"}},
                                        {"regex": ["^prefix-.*$", {"ref": "resource.Properties.RoleName"}]},
                                    ]
                                },
                                {"eq": [{"ref": "principal"}, "arn:aws:iam::999999999:role/someuser@bla.com"]},
                            ]
                        },
                    ),
                ]
            )
        },
    )

    rules = [DEFAULT_RULES.get(rule)(mock_config) for rule in mock_config.rules]
    processor = RuleProcessor(*rules)
    result = processor.process_cf_template(template_cross_account_role_with_name, mock_config)
    assert result.valid
github Skyscanner / cfripper / tests / config / test_filter.py View on Github external
{
                                    "and": [
                                        {"exists": {"ref": "resource.Properties.RoleName"}},
                                        {"regex": ["^prefix-.*$", {"ref": "resource.Properties.RoleName"}]},
                                    ]
                                },
                                {"eq": [{"ref": "principal"}, "arn:aws:iam::999999999:role/someuser@bla.com"]},
                            ]
                        },
                    ),
                ]
            )
        },
    )

    rules = [DEFAULT_RULES.get(rule)(mock_config) for rule in mock_config.rules]
    processor = RuleProcessor(*rules)
    result = processor.process_cf_template(template_cross_account_role_no_name, mock_config)
    assert not result.valid
github Skyscanner / cfripper / tests / rules / test_EC2SecurityGroupMissingEgressRule.py View on Github external
def test_non_matching_filters_are_reported_normally(single_security_group_one_cidr_ingress):
    mock_config = Config(
        rules=["EC2SecurityGroupMissingEgressRule"],
        aws_account_id="123456789",
        stack_name="mockstack",
        rules_config={
            "EC2SecurityGroupMissingEgressRule": RuleConfig(
                filters=[
                    Filter(rule_mode=RuleMode.WHITELISTED, eval={"eq": [{"ref": "config.stack_name"}, "anotherstack"]})
                ],
            )
        },
    )
    rules = [DEFAULT_RULES.get(rule)(mock_config) for rule in mock_config.rules]
    processor = RuleProcessor(*rules)
    result = processor.process_cf_template(single_security_group_one_cidr_ingress, mock_config)

    assert not result.valid
    assert len(result.failed_rules) == 1
    assert len(result.failed_monitored_rules) == 0
    assert result.failed_rules[0].rule == "EC2SecurityGroupMissingEgressRule"
    assert (
        result.failed_rules[0].reason
        == "Missing egress rule in sg means all traffic is allowed outbound. Make this explicit if it is desired configuration"
    )
github Skyscanner / cfripper / tests / rules / test_CrossAccountTrustRule.py View on Github external
def test_resource_whitelisting_works_as_expected(template_two_roles_dict, expected_result_two_roles):
    mock_rule_to_resource_whitelist = {"CrossAccountTrustRule": {".*": {"RootRoleOne"}}}
    mock_config = Config(
        rules=["CrossAccountTrustRule"],
        aws_account_id="123456789",
        rule_to_resource_whitelist=mock_rule_to_resource_whitelist,
        stack_name="mockstack",
        stack_whitelist={},
    )
    rules = [DEFAULT_RULES.get(rule)(mock_config) for rule in mock_config.rules]
    processor = RuleProcessor(*rules)
    result = processor.process_cf_template(template_two_roles_dict, mock_config)

    assert not result.valid
    assert result.failed_rules[0] == expected_result_two_roles[-1]
github Skyscanner / cfripper / tests / test_main.py View on Github external
def test_all_rules_valid():
    for r in DEFAULT_RULES.values():
        if r.RULE_MODE not in ["BLOCKING", "MONITOR", "DEBUG"]:
            assert False
    assert True
github Skyscanner / cfripper / tests / rules / test_CrossAccountTrustRule.py View on Github external
def test_whitelisted_stacks_do_not_report_anything(template_two_roles_dict):
    mock_stack_whitelist = {"mockstack": ["CrossAccountTrustRule"]}
    mock_config = Config(
        rules=["CrossAccountTrustRule"],
        aws_account_id="123456789",
        stack_name="mockstack",
        stack_whitelist=mock_stack_whitelist,
    )
    rules = [DEFAULT_RULES.get(rule)(mock_config) for rule in mock_config.rules]
    processor = RuleProcessor(*rules)
    result = processor.process_cf_template(template_two_roles_dict, mock_config)

    assert result.valid
github Skyscanner / cfripper / cfripper / main.py View on Github external
config = Config(
        project_name=event.get("project"),
        service_name=event.get("serviceName"),
        stack_name=event.get("stack", {}).get("name"),
        rules=DEFAULT_RULES.keys(),
        event=event.get("event"),
        template_url=event.get("stack_template_url", "N/A"),
        aws_region=event.get("region", "N/A"),
        aws_account_name=event.get("account", {}).get("name", "N/A"),
        aws_account_id=event.get("account", {}).get("id", "N/A"),
        aws_user_agent=event.get("user_agent", "N/A"),
    )

    logger.info("Scan started for: {}; {}; {};".format(config.project_name, config.service_name, config.stack_name))

    rules = [DEFAULT_RULES.get(rule)(config) for rule in config.rules]
    processor = RuleProcessor(*rules)

    # TODO get AWS variables/parameters and pass them to resolve
    cfmodel = pycfmodel.parse(template).resolve()

    result = processor.process_cf_template(cfmodel=cfmodel, config=config, extras=extras)

    perform_logging(result, config, event)

    return {
        "valid": result.valid,
        "reason": ",".join(["{}-{}".format(r.rule, r.reason) for r in result.failed_rules]),
        "failed_rules": [
            failure.serializable() for failure in RuleProcessor.remove_debug_rules(rules=result.failed_rules)
        ],
        "exceptions": [x.args[0] for x in result.exceptions],