mcp-server-semgrep/semgrep-rules/c/lang/security/insecure-use-scanf-fn.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: insecure-use-scanf-fn
  pattern: scanf(...)
  message: >-
    Avoid using 'scanf()'. This function, when used improperly, does not consider
    buffer boundaries and can lead to buffer overflows. Use 'fgets()' instead
    for reading input.
  metadata:
    cwe:
    - 'CWE-676: Use of Potentially Dangerous Function'
    references:
    - http://sekrit.de/webdocs/c/beginners-guide-away-from-scanf.html
    category: security
    technology:
    - c
    confidence: LOW
    subcategory:
    - audit
    likelihood: LOW
    impact: HIGH
  languages: [c]
  severity: WARNING