my-semgrep-rules/dangerous-spawn-shell.yaml at master · imfht/my-semgrep-rules · GitHub

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rules:
- id: dangerous-spawn-shell
  metadata:
    cwe: "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"
    owasp: 'A1: Injection'
    source-rule-url: https://github.com/nodesecurity/eslint-plugin-security/blob/master/rules/detect-child-process.js
    category: security
  message: |
    Detected non-literal calls to $EXEC(). This could lead to a command
    injection vulnerability.
  patterns:
  - pattern-either:
    - pattern: spawn(...)
    - pattern: spawnSync(...)
    - pattern: $CP.spawn(...)
    - pattern: $CP.spawnSync(...)
  - pattern-either:
    - patterns:
      - pattern-either:
        - pattern: |
            $EXEC("=~/(sh|bash|ksh|csh|tcsh|zsh)/",["-c", $ARG, ...],...)
        - patterns:
          - pattern: $EXEC($CMD,["-c", $ARG, ...],...)
          - pattern-inside: |
              $CMD = "=~/(sh|bash|ksh|csh|tcsh|zsh)/"
              ...
      - pattern-not: |
          $EXEC("=~/(sh|bash|ksh|csh|tcsh|zsh)/",["-c", "...", ...],...)
    - patterns:
      - pattern-either:
        - pattern: |
            $EXEC("=~/(sh|bash|ksh|csh|tcsh|zsh)/",[$ARG, ...],...)
        - patterns:
          - pattern: $EXEC($CMD,[$ARG, ...],...)
          - pattern-inside: |
              $CMD = "=~/(sh|bash|ksh|csh|tcsh|zsh)/"
              ...
      - pattern-not: |
          $EXEC("=~/(sh|bash|ksh|csh|tcsh|zsh)/",["...", ...],...)
  - pattern-not-inside: |
      $ARG = "..."
      ...
  - pattern-either:
    - pattern-inside: |
        require('child_process')
        ...
    - pattern-inside: |
        import 'child_process'
        ...
  severity: WARNING
  languages:
  - javascript
  - typescript