ocaml.lang.security.digest.ocamllint-digest

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LGPL Commons Clause
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Digest uses MD5 and should not be used for security purposes. Consider using SHA256 instead.

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Defintion

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rules:
  - id: ocamllint-digest
    pattern-either:
      - pattern: Digest.string
      - pattern: Digest.bytes
      - pattern: Digest.substring
      - pattern: Digest.subbytes
      - pattern: Digest.channel
      - pattern: Digest.file
    message: Digest uses MD5 and should not be used for security purposes. Consider
      using SHA256 instead.
    languages:
      - ocaml
    severity: WARNING
    metadata:
      category: security
      references:
        - https://v2.ocaml.org/api/Digest.html
      technology:
        - ocaml
      cwe: "CWE-328: Use of Weak Hash (4.12)"
      confidence: LOW
      likelihood: MEDIUM
      impact: MEDIUM
      subcategory:
        - audit
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]
      vulnerability_class:
        - Other

Examples

digest.ml

(* ruleid:ocamllint-digest *)
let a = Digest.string "asd" in
  Printf.printf "%s\n" a