ajinabraham.njsscan.traversal.resolve_path_traversal.join_resolve_path_traversal

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Path constructed with user input can result in Path Traversal. Ensure that user input does not reach join() or resolve().

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Defintion

rules:
  - id: join_resolve_path_traversal
    patterns:
      - pattern-inside: |
          require('path')
          ...
      - pattern-either:
          - pattern-inside: function ($REQ, $RES, ...) {...}
          - pattern-inside: function $FUNC($REQ, $RES, ...) {...}
          - pattern-inside: $X = function $FUNC($REQ, $RES, ...) {...}
          - pattern-inside: var $X = function $FUNC($REQ, $RES, ...) {...};
          - pattern-inside: $APP.$METHOD(..., function $FUNC($REQ, $RES, ...) {...})
      - pattern-either:
          - pattern: $PATH.join(...,<... $REQ.$BODY ...>,...)
          - pattern: $PATH.join(...,<... $REQ.$QUERY.$FOO ...>,...)
          - pattern: |
              $VAR = <... $REQ.$BODY ...>;
              ...
              $PATH.join(...,<... $VAR ...>,...)
          - pattern: |
              $VAR = <... $REQ.$QUERY.$FOO ...>;
              ...
              $PATH.join(...,<... $VAR ...>,...)
          - pattern: $PATH.resolve(...,<... $REQ.$BODY ...>,...)
          - pattern: $PATH.resolve(...,<... $REQ.$QUERY.$FOO ...>,...)
          - pattern: |
              $VAR = <... $REQ.$BODY ...>;
              ...
              $PATH.resolve(...,<... $VAR ...>,...)
          - pattern: |-
              $VAR = <... $REQ.$QUERY.$FOO ...>;
              ...
              $PATH.resolve(...,<... $VAR ...>,...)
    message: "Path constructed with user input can result in Path Traversal. Ensure
      that user input does not reach `join()` or `resolve()`. "
    languages:
      - javascript
    metadata:
      owasp-web: a5
      cwe: cwe-22
      license: LGPL-3.0-or-later
      vulnerability_class:
        - Other
    severity: WARNING