CVE-2019-18988

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Con versiones anteriores a v9.x, esto permit\u00eda a atacantes descifrar la contrase\u00f1a de Unattended Access en el sistema (que permite el inicio de sesi\u00f3n remoto en el sistema, as\u00ed como la exploraci\u00f3n de archivos sin encabezado). La \u00faltima versi\u00f3n a\u00fan utiliza la misma clave para OptionPasswordAES pero parece haber cambiado la manera en que se almacena la contrase\u00f1a de Unattended Access. Mientras que en la mayor\u00eda de los casos un atacante requiere una sesi\u00f3n existente en un sistema, si las claves de registro/configuraci\u00f3n fueron almacenadas fuera de la m\u00e1quina (como en un recurso compartido de archivos o en l\u00ednea), un atacante podr\u00eda descifrar la contrase\u00f1a requerida para iniciar sesi\u00f3n en el sistema ."}], "id": "CVE-2019-18988", "lastModified": "2026-06-17T02:25:42.777", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2019-18988", "options": [{"exploitation": "active"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-02-04T20:33:26.822954Z", "version": "2.0.3"}}]}, "published": "2020-02-07T16:15:10.033", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://community.teamviewer.com/t5/Announcements/Specification-on-CVE-2019-18988/td-p/82264"}, {"source": "cve@mitre.org", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://community.teamviewer.com/t5/Knowledge-Base/tkb-p/Knowledgebase?threadtype=label&labels=Security"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://twitter.com/Blurbdust/status/1224212682594770946?s=20"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://whynotsecurity.com/blog/teamviewer/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.teamviewer.com/t5/Announcements/Specification-on-CVE-2019-18988/td-p/82264"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://community.teamviewer.com/t5/Knowledge-Base/tkb-p/Knowledgebase?threadtype=label&labels=Security"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://twitter.com/Blurbdust/status/1224212682594770946?s=20"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://whynotsecurity.com/blog/teamviewer/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18988"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-521"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-521"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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