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

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: insecure-use-strcat-fn
  pattern-either:
  - pattern: strcat(...)
  - pattern: strncat(...)
  message: >-
    Finding triggers whenever there is a strcat or strncat used.
    This is an issue because strcat or strncat can lead to buffer overflow vulns.
    Fix this by using strcat_s instead.
  metadata:
    cwe:
    - 'CWE-676: Use of Potentially Dangerous Function'
    references:
    - https://nvd.nist.gov/vuln/detail/CVE-2019-12553
    - https://techblog.mediaservice.net/2020/04/cve-2020-2851-stack-based-buffer-overflow-in-cde-libdtsvc/
    category: security
    technology:
    - c
    confidence: LOW
    subcategory:
    - audit
    likelihood: LOW
    impact: HIGH
  languages: [c]
  severity: WARNING