CVE-2021-25737

{"id": "CVE-2021-25737", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.7}, {"type": "Secondary", "source": "jordan@liggitt.net", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.2}]}, "published": "2021-09-06T12:15:07.673", "references": [{"url": "https://github.com/kubernetes/kubernetes/issues/102106", "tags": ["Patch", "Third Party Advisory"], "source": "jordan@liggitt.net"}, {"url": "https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY", "tags": ["Mailing List", "Third Party Advisory"], "source": "jordan@liggitt.net"}, {"url": "https://security.netapp.com/advisory/ntap-20211004-0004/", "tags": ["Third Party Advisory"], "source": "jordan@liggitt.net"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-601"}]}, {"type": "Secondary", "source": "jordan@liggitt.net", "description": [{"lang": "en", "value": "CWE-184"}]}], "descriptions": [{"lang": "en", "value": "A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs."}, {"lang": "es", "value": "Se ha detectado un problema de seguridad en Kubernetes en el que un usuario puede ser capaz de redirigir el tr\u00e1fico del pod a redes privadas en un Nodo. Kubernetes ya previene la creaci\u00f3n de IPs de Endpoint en el rango localhost o link-local, pero no se ha llevado a cabo la misma comprobaci\u00f3n en las IPs de EndpointSlice."}], "lastModified": "2021-10-07T17:55:09.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B86E916-8D46-49BD-BF24-ED83D2ECFB28", "versionEndExcluding": "1.18.19", "versionStartIncluding": "1.16.0"}, {"criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54F99BEF-703E-43C0-846C-AB9EECE134A9", "versionEndExcluding": "1.19.10", "versionStartIncluding": "1.19.0"}, {"criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9649E8E5-DDA2-408F-9221-19E853704497", "versionEndExcluding": "1.20.7", "versionStartIncluding": "1.20.0"}, {"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.21.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9AF80B0-93B1-4129-BCB7-BF93F13FC880"}], "operator": "OR"}]}], "sourceIdentifier": "jordan@liggitt.net"}