CVE-2021-21284

{"id": "CVE-2021-21284", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.7, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 5.1, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.3}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.3}]}, "published": "2021-02-02T18:15:11.827", "references": [{"url": "https://docs.docker.com/engine/release-notes/#20103", "tags": ["Release Notes", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/moby/moby/releases/tag/v19.03.15", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/moby/moby/releases/tag/v20.10.3", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://security.gentoo.org/glsa/202107-23", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://security.netapp.com/advisory/ntap-20210226-0005/", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://www.debian.org/security/2021/dsa-4865", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using \"--userns-remap\", if the root user in the remapped namespace has access to the host filesystem they can modify files under \"/var/lib/docker/<remapping>\" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user."}, {"lang": "es", "value": "En Docker versiones anteriores a 9.03.15, 20.10.3, se presenta una vulnerabilidad que involucra la opci\u00f3n --userns-remap en la que un acceso a una root reasignada permite una escalada de privilegios a la root actual.&#xa0;Cuando se usa \"--userns-remap\", si el usuario root en el espacio de nombres reasignado tiene acceso al sistema de archivos del host, puede modificar archivos en \"/var/lib/docker/(remapping)\" que causa la escritura de archivos con privilegios extendidos.&#xa0;Las versiones 20.10.3 y 19.03.15 contienen parches que evitan una escalada de privilegios del usuario reasignado"}], "lastModified": "2022-04-29T19:22:01.677", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6B22016-AB78-4E82-9F65-AEC2526F3EDF", "versionEndExcluding": "19.03.15"}, {"criteria": "cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B4427D14-D219-490B-8467-40FE253775A1", "versionEndExcluding": "20.10.3", "versionStartIncluding": "20.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD1E9594-C46F-40D1-8BC2-6B16635B55C4", "versionEndIncluding": "11.60.3", "versionStartIncluding": "11.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}