rules:
- id: divide-by-zero
  message: >-
    Detected a possible ZeroDivisionError.
  metadata:
    cwe:
    - 'CWE-369: Divide By Zero'
    references:
    - https://github.com/presidentbeef/brakeman/blob/main/lib/brakeman/checks/check_divide_by_zero.rb
    category: security
    technology:
    - ruby
    confidence: MEDIUM
    subcategory:
    - vuln
    likelihood: MEDIUM
    impact: MEDIUM
  languages:
  - ruby
  severity: WARNING
  mode: taint
  pattern-sources:
  - patterns:
    - pattern: $VAR
    - metavariable-regex:
        metavariable: $VAR
        regex: ^\d*(?!\.)$
  pattern-sinks:
  - patterns:
    - pattern-inside: $NUMER / 0
    - pattern: $NUMER