CVE-2020-8907

{"id": "CVE-2020-8907", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}], "cvssMetricV40": [{"type": "Secondary", "source": "cve-coordination@google.com", "cvssData": {"safety": "NOT_DEFINED", "version": "4.0", "recovery": "NOT_DEFINED", "baseScore": 9.3, "automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "modifiedAttackVector": "NOT_DEFINED", "integrityRequirements": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "availabilityRequirements": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subsequentSystemIntegrity": "HIGH", "vulnerableSystemIntegrity": "HIGH", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "confidentialityRequirements": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "subsequentSystemAvailability": "HIGH", "vulnerableSystemAvailability": "HIGH", "subsequentSystemConfidentiality": "HIGH", "vulnerableSystemConfidentiality": "HIGH", "modifiedSubsequentSystemIntegrity": "NOT_DEFINED", "modifiedVulnerableSystemIntegrity": "NOT_DEFINED", "modifiedSubsequentSystemAvailability": "NOT_DEFINED", "modifiedVulnerableSystemAvailability": "NOT_DEFINED", "modifiedSubsequentSystemConfidentiality": "NOT_DEFINED", "modifiedVulnerableSystemConfidentiality": "NOT_DEFINED"}}]}, "published": "2020-06-22T14:15:11.753", "references": [{"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://cloud.google.com/support/bulletins/#gcp-2020-008", "tags": ["Vendor Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29", "tags": ["Patch", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://gitlab.com/gitlab-com/gl-security/gl-redteam/red-team-tech-notes/-/tree/master/oslogin-privesc-june-2020", "tags": ["Exploit", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://cloud.google.com/support/bulletins/#gcp-2020-008", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/GoogleCloudPlatform/guest-oslogin/pull/29", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://gitlab.com/gitlab-com/gl-security/gl-redteam/red-team-tech-notes/-/tree/master/oslogin-privesc-june-2020", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-276"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-276"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role \"roles/compute.osLogin\" to escalate privileges to root. Using their membership to the \"docker\" group, an attacker with this role is able to run docker and mount the host OS. Within docker, it is possible to modify the host OS filesystem and modify /etc/groups to gain administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the \"docker\" user from the OS Login entry."}, {"lang": "es", "value": "Una vulnerabilidad en las versiones entre 20190304 y 20200507 de guest-oslogin de Google Cloud Platform, permite a un usuario al que solo se le otorg\u00f3 el rol \"roles/compute.osLogin\" para escalar privilegios a root. Al utilizar su pertenencia al grupo \"docker\", un atacante con este rol es capaz de ejecutar docker y montar el Sistema Operativo host. Dentro de Docker, es posible modificar el sistema de archivos del Sistema Operativo host y modificar /etc/groups para obtener privilegios administrativos. Todas las im\u00e1genes creadas despu\u00e9s del 07 de mayo 2020 (20200507) est\u00e1n corregidas, y si no la pueden actualizar, le recomendamos editar /etc/group/security.conf y eliminar el usuario \"docker\" de la entrada de Inicio de Sesi\u00f3n del Sistema Operativo"}], "lastModified": "2024-11-21T05:39:39.933", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:google:guest-oslogin:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9751996A-374C-4002-A06F-CA2B0A5D7609", "versionEndIncluding": "20200507.00", "versionStartIncluding": "20190304.00"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493"}, {"criteria": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B009C22E-30A4-4288-BCF6-C3E81DEAF45A"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}