ajinabraham.njsscan.open_redirect.express_open_redirect2

rules:
  - id: express_open_redirect2
    patterns:
      - pattern-inside: |
          $APP.$METHOD(..., function $FUNC($REQ, $RES) { ... })
      - pattern-either:
          - pattern: |
              $RES.header(..., "=~/location/i", <... $REQ.$VAR ...>, ...)
          - pattern: |
              $RES.header(..., "=~/location/i", <... $REQ.$VAR.$VARR ...>, ...)
          - pattern: |
              $RES.writeHead(..., "=~/location/i", <... $REQ.$VAR ...>, ...)
          - pattern: >
              $RES.writeHead(..., "=~/location/i", <... $REQ.$VAR.$VARR ...>,
              ...)
          - pattern: |
              $RES.writeHead(..., {"=~/location/i": <... $REQ.$VAR ...> }, ...)
          - pattern: >
              $RES.writeHead(..., {"=~/location/i": <... $REQ.$VAR.$VARR ...> },
              ...)
          - pattern: |
              $INP = <... $REQ.$VAR ...>;
              ...
              $RES.header(..., "=~/location/i", <... $INP ...>, ...)
          - pattern: |
              $INP = <... $REQ.$VAR.$VARR ...>;
              ...
              $RES.header(..., "=~/location/i", <... $INP ...>, ...)
          - pattern: |
              $INP = <... $REQ.$VAR ...>;
              ...
              $RES.writeHead(..., "=~/location/i", <... $INP ...>, ...)
          - pattern: |
              $INP = <... $REQ.$VAR.$VARR ...>;
              ...
              $RES.writeHead(..., "=~/location/i", <... $INP ...>, ...)
          - pattern: |
              $INP = <... $REQ.$VAR ...>;
              ...
              $RES.writeHead(..., {"=~/location/i": <... $INP ...> }, ...)
          - pattern: |
              $INP = <... $REQ.$VAR.$VARR ...>;
              ...
              $RES.writeHead(..., {"=~/location/i": <... $INP ...> }, ...)
    message: Untrusted user input in response header('Location') can result in Open
      Redirect vulnerability.
    languages:
      - javascript
    severity: ERROR
    metadata:
      owasp-web: a1
      cwe: cwe-601
      license: LGPL-3.0-or-later