Class: SecurityGroupEgressPortRangeRule

Inherits:
BaseRule
  • Object
show all
Defined in:
lib/cfn-nag/custom_rules/SecurityGroupEgressPortRangeRule.rb

Instance Method Summary collapse

Methods inherited from BaseRule

#audit

Instance Method Details

#audit_impl(cfn_model) ⇒ Object

This will behave slightly different than the legacy jq based rule which was targeted against inline ingress only



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
# File 'lib/cfn-nag/custom_rules/SecurityGroupEgressPortRangeRule.rb', line 22

def audit_impl(cfn_model)
  violating_security_groups = cfn_model.security_groups.select do |security_group|
    violating_egresses = security_group.egresses.select do |egress|
      egress.fromPort != egress.toPort
    end

    !violating_egresses.empty?
  end

  violating_egresses = cfn_model.standalone_egress.select do |standalone_egress|
    standalone_egress.fromPort != standalone_egress.toPort
  end

  violating_security_groups.map(&:logical_resource_id) + violating_egresses.map(&:logical_resource_id)
end

#rule_id ⇒ Object 



15
16
17
 
# File 'lib/cfn-nag/custom_rules/SecurityGroupEgressPortRangeRule.rb', line 15

def rule_id
  'W29'
end

#rule_text ⇒ Object 



7
8
9
 
# File 'lib/cfn-nag/custom_rules/SecurityGroupEgressPortRangeRule.rb', line 7

def rule_text
  'Security Groups found egress with port range instead of just a single port'
end

#rule_type ⇒ Object 



11
12
13
 
# File 'lib/cfn-nag/custom_rules/SecurityGroupEgressPortRangeRule.rb', line 11

def rule_type
  Violation::WARNING
end