CVE-2017-8408

{"id": "CVE-2017-8408", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 10.0, "accessVector": "NETWORK", "vectorString": "AV:N/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": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/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": 3.9}]}, "published": "2019-07-02T16:15:11.643", "references": [{"url": "https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf", "tags": ["Exploit", "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"}], "vulnStatus": "Analyzed", "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-1130 devices. The device provides a user with the capability of setting a SMB folder for the video clippings recorded by the device. It seems that the GET parameters passed in this request (to test if SMB credentials and hostname sent to the device work properly) result in being passed as commands to a \"system\" API in the function and thus result in command injection on the device. If the firmware version is dissected using binwalk tool, we obtain a cramfs-root archive which contains the filesystem set up on the device that contains all the binaries. The binary \"cgibox\" is the one that has the vulnerable function \"sub_7EAFC\" that receives the values sent by the GET request. If we open this binary in IDA-pro we will notice that this follows a ARM little endian format. The function sub_7EAFC in IDA pro is identified to be receiving the values sent in the GET request and the value set in GET parameter \"user\" is extracted in function sub_7E49C which is then passed to the vulnerable system API call."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en los dispositivos D-Link DCS-1130. El dispositivo proporciona al usuario la capacidad de configurar una carpeta SMB para los recortes de video grabados por el dispositivo. Parece que los par\u00e1metros GET pasados ??en esta solicitud (para probar si las credenciales SMB y el nombre de host enviados al dispositivo funcionan correctamente) dan como resultado que se pasen como comandos a una API de \"sistema\" en la funci\u00f3n y, por lo tanto, resulten en una inyecci\u00f3n de comandos en el dispositivo. Si la versi\u00f3n del firmware se disecciona con la herramienta binwalk, obtenemos un archivo cramfs-root que contiene el sistema de archivos configurado en el dispositivo que contiene todos los archivos binarios. El binario \"cgibox\" es el que tiene la funci\u00f3n vulnerable \"sub_7EAFC\" que recibe los valores enviados por la solicitud GET. Si abrimos este binario en IDA-pro, notaremos que esto sigue un formato ARM en little endian. La funci\u00f3n sub_7EAFC en IDA pro est\u00e1 identificada para recibir los valores enviados en la solicitud GET y el valor establecido en el par\u00e1metro GET \"usuario\" se extrae en la funci\u00f3n sub_7E49C que luego se pasa a la llamada API del sistema vulnerable."}], "lastModified": "2023-04-26T19:27:52.350", "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"}], "sourceIdentifier": "cve@mitre.org"}