Class: CvssSuite::Cvss2

Inherits:
Cvss
  • Object
show all
Defined in:
lib/cvss_suite/cvss2/cvss2.rb

Overview

This class represents a CVSS vector in version 2.

Instance Attribute Summary

Attributes inherited from Cvss

#base, #environmental, #temporal, #vector

Instance Method Summary collapse

Methods inherited from Cvss

#initialize, #overall_score, #valid?

Constructor Details

This class inherits a constructor from CvssSuite::Cvss

Instance Method Details

#base_score ⇒ Object

Returns the Base Score of the CVSS vector.



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# File 'lib/cvss_suite/cvss2/cvss2.rb', line 48

def base_score
  check_validity
  @base.score.round(1)
end

#environmental_score ⇒ Object

Returns the Environmental Score of the CVSS vector.



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# File 'lib/cvss_suite/cvss2/cvss2.rb', line 61

def environmental_score
  return temporal_score unless @environmental.valid?

  (@environmental.score @base, @temporal.score).round(1)
end

#severity ⇒ Object

Returns the severity of the CVSSv2 vector. nvd.nist.gov/vuln-metrics/cvss



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# File 'lib/cvss_suite/cvss2/cvss2.rb', line 29

def severity
  check_validity

  score = overall_score

  case score
  when 0.0..3.9
    'Low'
  when 4.0..6.9
    'Medium'
  when 7.0..10.0
    'High'
  else
    'None'
  end
end

#temporal_score ⇒ Object

Returns the Temporal Score of the CVSS vector.



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# File 'lib/cvss_suite/cvss2/cvss2.rb', line 55

def temporal_score
  (base_score * @temporal.score).round(1)
end

#version ⇒ Object

Returns the Version of the CVSS vector.



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# File 'lib/cvss_suite/cvss2/cvss2.rb', line 23

def version
  2
end