Class: IamRolePassRoleWildcardResourceRule

Inherits:
BaseRule show all
Defined in:
lib/cfn-nag/custom_rules/IamRolePassRoleWildcardResourceRule.rb

Constant Summary collapse

IAM_ACTION_PATTERNS = 
wildcard_patterns('PassRole').map! { |x| 'iam:' + x } + ['*']

Instance Method Summary collapse

Methods inherited from BaseRule

#audit

Instance Method Details

#audit_impl(cfn_model) ⇒ Object 



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# File 'lib/cfn-nag/custom_rules/IamRolePassRoleWildcardResourceRule.rb', line 22

def audit_impl(cfn_model)
  violating_roles = cfn_model.resources_by_type('AWS::IAM::Role').select do |role|
    violating_policies = role.policy_objects.select do |policy|
      violating_statements = policy.policy_document.statements.select do |statement|
        passrole_action?(statement) && wildcard_resource?(statement)
      end
      !violating_statements.empty?
    end
    !violating_policies.empty?
  end
  violating_roles.map(&:logical_resource_id)
end

#rule_id ⇒ Object 



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# File 'lib/cfn-nag/custom_rules/IamRolePassRoleWildcardResourceRule.rb', line 18

def rule_id
  'F38'
end

#rule_text ⇒ Object 



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# File 'lib/cfn-nag/custom_rules/IamRolePassRoleWildcardResourceRule.rb', line 10

def rule_text
  'IAM role should not allow * resource with PassRole action on its permissions policy'
end

#rule_type ⇒ Object 



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# File 'lib/cfn-nag/custom_rules/IamRolePassRoleWildcardResourceRule.rb', line 14

def rule_type
  Violation::FAILING_VIOLATION
end