mcp-server-semgrep/semgrep-rules/php/lang/security/tainted-exec.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: tainted-exec
  mode: taint
  pattern-sources:
  - pattern: $_REQUEST
  - pattern: $_GET
  - pattern: $_POST
  - pattern: $_COOKIE
  pattern-sinks:
  - pattern: exec(...)
  - pattern: system(...)
  - pattern: popen(...)
  - pattern: passthru(...)
  - pattern: shell_exec(...)
  - pattern: pcntl_exec(...)
  - pattern: proc_open(...)
  pattern-sanitizers:
  - pattern: escapeshellarg(...)
  message: >-
    Executing non-constant commands. This can lead to command injection. You should use `escapeshellarg()` when using command.
  metadata:
    cwe:
    - "CWE-94: Improper Control of Generation of Code ('Code Injection')"
    references:
    - https://www.stackhawk.com/blog/php-command-injection/
    - https://brightsec.com/blog/code-injection-php/
    - https://www.acunetix.com/websitesecurity/php-security-2/
    category: security
    technology:
    - php
    owasp:
    - A03:2021 - Injection
    cwe2022-top25: true
    subcategory:
    - vuln
    likelihood: HIGH
    impact: HIGH
    confidence: MEDIUM
  languages: [php]
  severity: ERROR