mcp-server-semgrep/semgrep-rules/bash/lang/security/ifs-tampering.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: ifs-tampering
  languages: [bash]
  severity: WARNING
  message: >-
    The special variable IFS affects how splitting takes place when
    expanding unquoted variables. Don't set it globally.
    Prefer a dedicated utility such as 'cut' or 'awk' if you need to split
    input data. If you must use 'read', set IFS locally using e.g.
    'IFS="," read -a my_array'.
  pattern: IFS=...
  metadata:
    cwe:
    - 'CWE-20: Improper Input Validation'
    category: security
    technology:
    - bash
    confidence: LOW
    owasp:
    - A03:2021 - Injection
    references:
    - https://owasp.org/Top10/A03_2021-Injection
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - audit
    likelihood: LOW
    impact: LOW