mcp-server-semgrep/semgrep-rules/php/lang/security/audit/sha224-hash.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: sha224-hash
  pattern-either:
  - pattern: hash('sha224', ...);
  - pattern: hash('sha512/224', ...);
  - pattern: hash('sha3-224', ...);
  - pattern: hash_hmac('sha224', ...);
  - pattern: hash_hmac('sha512/224', ...);
  - pattern: hash_hmac('sha3-224', ...);
  message: >-
    This code uses a 224-bit hash function, which is deprecated or disallowed
    in some security policies. Consider updating to a stronger hash function such
    as SHA-384 or higher to ensure compliance and security.
  metadata:
    cwe:
    - 'CWE-328: Use of Weak Hash'
    references:
    - https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-131Ar3.ipd.pdf
    - https://www.cyber.gov.au/resources-business-and-government/essential-cyber-security/ism/cyber-security-guidelines/guidelines-cryptography
    category: security
    technology:
    - php
    owasp:
    - A03:2017 - Sensitive Data Exposure
    - A02:2021 - Cryptographic Failures
    subcategory:
    - audit
    likelihood: LOW
    impact: LOW
    confidence: HIGH
  languages: [php]
  severity: WARNING