CVE-2019-9949

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The cgi-bin/webfile_mgr.cgi file allows arbitrary file write by abusing symlinks. Specifically, this occurs by uploading a tar archive that contains a symbolic link, then uploading another archive that writes a file to the link using the \"cgi_untar\" command. Other commands might also be susceptible. Code can be executed because the \"name\" parameter passed to the cgi_unzip command is not sanitized."}, {"lang": "es", "value": "Western Digital My Cloud Cloud, Mirror Gen2, EX2 Ultra, EX2100, EX4100, DL2100, DL4100, PR2100 y PR4100 antes del firmware versi\u00f3n 2.31.183 se ven afectados por una ejecuci\u00f3n de c\u00f3digo (as root, starting from a low-privilege user session). El archivo cgi-bin/webfile_mgr.cgi permite la escritura arbitraria de archivos al abusar de los symlinks. Espec\u00edficamente, esto ocurre al cargar un archivo \"tar\" que contiene un enlace simb\u00f3lico, y despu\u00e9s cargar otro archivo que escribe un archivo en el enlace usando el comando \"cgi_untar\". Otros comandos tambi\u00e9n pueden ser susceptibles. El c\u00f3digo puede ser ejecutado porque el par\u00e1metro \"nombre\" pas\u00f3 hacia el comando cgi_unzip sin estar saneado."}], "id": "CVE-2019-9949", "lastModified": "2026-06-17T02:44:55.013", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-05-23T14:29:08.000", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bnbdr.github.io/posts/wd/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-183-05-20-2019/237717"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/bnbdr/wd-rce/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bnbdr.github.io/posts/wd/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.wd.com/t/new-release-my-cloud-firmware-versions-2-31-183-05-20-2019/237717"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/bnbdr/wd-rce/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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