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To validate a package in Junos before installation, an administrator executes the command 'request system software add validate-on-host' via the CLI. An attacker with access to this CLI command may be able to exploit this vulnerability. This issue affects Juniper Networks Junos OS: all versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2."}, {"lang": "es", "value": "Una vulnerabilidad de inyecci\u00f3n de comandos en el subsistema de comprobaci\u00f3n de paquetes de instalaci\u00f3n del Juniper Networks Junos OS, que puede permitir a un atacante autenticado localmente privilegiado ejecutar comandos con privilegios root.&#xa0;Para comprobar un paquete en Junos antes de la instalaci\u00f3n, un administrador ejecuta el comando \"request system software add validate-on-host\" por medio de la CLI.&#xa0;Un atacante con acceso a este comando de la CLI puede ser capaz de explotar esta vulnerabilidad.&#xa0;Este problema afecta a Juniper Networks Junos OS: todas las versiones anteriores a 17.3R3-S10;&#xa0;versiones 17.4 anteriores a 17.4R2-S12, 17.4R3-S3;&#xa0;versiones 18.1 anteriores a 18.1R3-S11;&#xa0;versiones 18.2 anteriores a 18.2R2-S8, 18.2R3-S6;&#xa0;versiones 18.3 anteriores a 18.3R3-S4;&#xa0;versiones 18.4 anteriores a 18.4R1-S8, 18.4R2-S7, 18.4R3-S6;&#xa0;versiones 19.1 anteriores a 19.1R1-S6, 19.1R2-S2, 19.1R3-S3;&#xa0;versiones 19.2 anteriores a 19.2R3-S1;&#xa0;versiones 19.&#xa0;3 anteriores a 19.3R2-S5, 19.3R3-S1;&#xa0;versiones 19.4 anteriores a 19.4R2-S2, 19.4R3-S1;&#xa0;versiones 20.1 anteriores a 20.1R2;&#xa0;versiones 20.2 anteriores a 20.2R1-S2, 20.2R2;&#xa0;versiones 20.3 anteriores a 20.3R1-S1, 20.3R2"}], "id": "CVE-2021-0219", "lastModified": "2024-11-21T05:42:13.937", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 5.9, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2021-01-15T18:15:15.590", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11109"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11109"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-78"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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