CVE-2021-20319

{"id": "CVE-2021-20319", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "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:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2022-03-04T18:15:08.060", "references": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2011862", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://github.com/coreos/coreos-installer/pull/659/commits/ad243c6f0eff2835b2da56ca5f7f33af76253c89", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://github.com/coreos/coreos-installer/security/advisories/GHSA-3r3g-g73x-g593", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-347"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-347"}]}], "descriptions": [{"lang": "en", "value": "An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed."}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad de verificaci\u00f3n de firma inapropiada en coreos-installer. Una imagen de instalaci\u00f3n gzip especialmente dise\u00f1ada puede omitir la verificaci\u00f3n de la firma de la imagen y, como consecuencia, puede conllevar a una instalaci\u00f3n de contenido no firmado. Un atacante capaz de modificar la imagen de instalaci\u00f3n original puede escribir datos arbitrarios y conseguir acceso completo al nodo que se est\u00e1 instalando"}], "lastModified": "2022-03-11T15:37:35.570", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:coreos-installer:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC97AE96-45A5-41F7-8300-FA9957F83E6A", "versionEndExcluding": "0.10.1"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}