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command-injection

Hunt OS command injection (CWE-78) — user input reaching shell, exec, or system calls. Covers argument-array bypasses, path confusion, and template-string injection in modern frameworks.

packages/decepticon/decepticon/skills/standard/analyst/command-injection/SKILL.md

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# Command Injection Playbook

If SQL injection is the king of web vulns, command injection is the
king of DevOps vulns. Every image-processing upload, PDF generator,
ffmpeg wrapper, and "run a script" feature is a candidate.

## 1. Sinks

| Language | Dangerous                                | Safer                                              |
|----------|------------------------------------------|----------------------------------------------------|
| Python   | `os.system`, `subprocess.Popen(..., shell=True)`, `os.popen`, `commands.getoutput` | `subprocess.run([...], shell=False)` |
| Node     | `child_process.exec`, `execSync`         | `child_process.execFile`, `spawn` (array args)     |
| Go       | `exec.Command("sh","-c",user)`           | `exec.Command(bin, arg1, arg2)` with array         |
| Java     | `Runtime.exec(String)`                   | `Runtime.exec(String[])`, `ProcessBuilder([...])`  |