CVE-2023-34195

{"id": "CVE-2023-34195", "metrics": {"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}]}, "published": "2023-09-18T13:15:08.487", "references": [{"url": "https://www.insyde.com/security-pledge", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.insyde.com/security-pledge/SA-2023052", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in SystemFirmwareManagementRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The implementation of the GetImage method retrieves the value of a runtime variable named GetImageProgress, and later uses this value as a function pointer. This variable is wiped out by the same module near the end of the function. By setting this UEFI variable from the OS to point into custom code, an attacker could achieve arbitrary code execution in the DXE phase, before several chipset locks are set."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en SystemFirmwareManagementRuntimeDxe en Insyde InsydeH2O con kernel 5.0 a 5.5. La implementaci\u00f3n del m\u00e9todo GetImage recupera el valor de una variable de tiempo de ejecuci\u00f3n denominada GetImageProgress y luego usa este valor como puntero de funci\u00f3n. Esta variable es eliminada por el mismo m\u00f3dulo cerca del final de la funci\u00f3n. Al configurar esta variable UEFI desde el sistema operativo para que apunte a un c\u00f3digo personalizado, un atacante podr\u00eda lograr la ejecuci\u00f3n de c\u00f3digo arbitrario en la fase DXE, antes de que se establezcan varios bloqueos de chipset."}], "lastModified": "2023-09-21T17:22:14.967", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E141D75-CFA2-4550-9265-6483350453AB", "versionEndExcluding": "5.2.05.28.22", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F7880FEA-8403-4446-90EB-5677DF675B71", "versionEndExcluding": "5.3.05.37.22", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6AB0F0E0-CB23-40C9-8041-CA7F33A5EFBC", "versionEndExcluding": "5.4.05.45.22", "versionStartIncluding": "5.4"}, {"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "565CDEE5-E032-467C-8A31-371BB7D9EC4D", "versionEndExcluding": "5.5.05.53.22", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D1C9957-E2FF-4AFA-BE7A-05D0F866DFB1", "versionEndExcluding": "5.6.05.60.22", "versionStartIncluding": "5.6"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}