CVE-2017-8413

{"id": "CVE-2017-8413", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 8.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2019-07-02T21:15:10.180", "references": [{"url": "http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf", "tags": ["Not Applicable", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://seclists.org/bugtraq/2019/Jun/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf", "tags": ["Not Applicable", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://seclists.org/bugtraq/2019/Jun/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device runs a custom daemon on UDP port 5978 which is called \"dldps2121\" and listens for broadcast packets sent on 255.255.255.255. This daemon handles custom D-Link UDP based protocol that allows D-Link mobile applications and desktop applications to discover D-Link devices on the local network. The binary processes the received UDP packets sent from any device in \"main\" function. One path in the function traverses towards a block of code that handles commands to be executed on the device. The custom protocol created by D-Link follows the following pattern: Packetlen, Type of packet; M=MAC address of device or broadcast; D=Device Type;C=base64 encoded command string;test=1111. If a packet is received with the packet type being \"S\" or 0x53 then the string passed in the \"C\" parameter is base64 decoded and then executed by passing into a System API. We can see at address 0x00009B44 that the string received in packet type subtracts 0x31 or \"1\" from the packet type and is compared against 0x22 or \"double quotes\". If that is the case, then the packet is sent towards the block of code that executes a command. Then the value stored in \"C\" parameter is extracted at address 0x0000A1B0. Finally, the string received is base 64 decoded and passed on to the system API at address 0x0000A2A8 as shown below. The same form of communication can be initiated by any process including an attacker process on the mobile phone or the desktop and this allows a third-party application on the device to execute commands on the device without any authentication by sending just 1 UDP packet with custom base64 encoding."}, {"lang": "es", "value": "Se detect\u00f3 un problema en los dispositivos DCS-1100 y DCS-1130 de D-Link. El dispositivo ejecuta un demonio personalizado en el puerto UDP 5978 que es llamado \"dldps2121\" y escucha los paquetes de difusi\u00f3n enviados en 255.255.255.255. Este demonio maneja el protocolo basado en UDP D-Link personalizado, que permite a las aplicaciones m\u00f3viles D-Link y a las aplicaciones de escritorio detectar dispositivos D-Link en la red local. El binario procesa los paquetes UDP recibidos enviados desde cualquier dispositivo en la funci\u00f3n \"main\". Una ruta (path) en la funci\u00f3n se dirige hacia un bloque de c\u00f3digo que maneja los comandos que se ejecutar\u00e1n en el dispositivo. El protocolo personalizado creado por D-Link sigue el siguiente patr\u00f3n: Paquete, Tipo de paquete; M=direcci\u00f3n MAC del dispositivo o transmisi\u00f3n; D=Tipo de dispositivo; C=cadena de comando codificada en base64; prueba=1111. Si un paquete es recibido con el tipo de paquete \"S\" o 0x53, la cadena pasada en el par\u00e1metro \"C\" se descodifica en base64 y luego se ejecuta pasando a una API del Sistema. Podemos ver en la direcci\u00f3n 0x00009B44 que la cadena recibida en el tipo de paquete sustracci\u00f3n 0x31 o \"1\" del tipo de paquete y se compara con 0x22 o \"double quotes\". Si este es el caso, entonces el paquete se env\u00eda hacia el bloque de c\u00f3digo que ejecuta un comando. Luego, el valor almacenado en el par\u00e1metro \"C\" se extrae en la direcci\u00f3n 0x0000A1B0. Finalmente, la cadena recibida se descodifica en base 64 y se transmite a la API del sistema en la direcci\u00f3n 0x0000A2A8 como se muestra a continuaci\u00f3n. La misma forma de comunicaci\u00f3n puede ser inicializada mediante cualquier proceso, incluido un proceso de atacante en el tel\u00e9fono m\u00f3vil o en el escritorio, y esto permite que una aplicaci\u00f3n de terceros en el dispositivo ejecute comandos en el dispositivo sin alguna autenticaci\u00f3n por medio del env\u00edo de solo 1 paquete UDP con codificaci\u00f3n base64 personalizada."}], "lastModified": "2024-11-21T03:33:59.480", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dcs-1130_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0DB53465-4FE2-43EF-B2C6-839DFEA80D62"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dcs-1130:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "33A388EC-275D-4180-83E2-AD73F7EEB54F"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dcs-1100_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "554817F7-7E3D-4D69-90AC-46D86056143B"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dcs-1100:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "704F9608-72CE-49C0-B7D2-F2FE84DF0C74"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}