CVE-2022-40250

{"id": "CVE-2022-40250", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.0}]}, "published": "2022-09-20T18:15:10.537", "references": [{"url": "https://www.ami.com/security-center/", "tags": ["Vendor Advisory"], "source": "cret@cert.org"}, {"url": "https://www.binarly.io/advisories/BRLY-2022-016", "tags": ["Exploit", "Third Party Advisory"], "source": "cret@cert.org"}, {"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html", "tags": ["Not Applicable", "Third Party Advisory"], "source": "cret@cert.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "cret@cert.org", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x."}, {"lang": "es", "value": "Un atacante puede explotar esta vulnerabilidad para elevar privilegios del anillo 0 al anillo -2, ejecutar c\u00f3digo arbitrario en el Modo de Administraci\u00f3n del Sistema - un entorno m\u00e1s privilegiado que el sistema operativo (SO) y completamente aislado de \u00e9l. Una ejecuci\u00f3n de c\u00f3digo arbitrario en el SMM tambi\u00e9n evita las protecciones de la flash SPI basadas en el SMM contra las modificaciones, lo que puede ayudar a un atacante a instalar una puerta trasera/implante de firmware en la BIOS. Dicho c\u00f3digo de firmware malicioso en la BIOS podr\u00eda persistir a trav\u00e9s de las reinstalaciones del sistema operativo. Adem\u00e1s, esta vulnerabilidad podr\u00eda ser usada por actores maliciosos para omitir los mecanismos de seguridad proporcionados por el firmware UEFI (por ejemplo, Secure Boot y algunos tipos de aislamiento de memoria para hipervisores). Este problema afecta: Nombre del m\u00f3dulo: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 GUID del m\u00f3dulo: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf Este problema afecta a: AMI Aptio 5.x. Este problema afecta: AMI Aptio versi\u00f3n 5.x"}], "lastModified": "2022-09-24T02:38:05.873", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:bc0074:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "209A250A-8C10-474C-A336-D234A7673681"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "29817A9E-9FDE-421B-950A-4053F9D22FD1"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:bc0074:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E54610A7-FA16-4CAC-8356-D4BB3BC0C873"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7074EC4C-7096-47D1-9CA8-9C4784DBF72D"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:ami:aptio_v:5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD2A25A0-0CFC-4A63-A7A9-4CD4D2A90FAD"}], "operator": "OR"}]}], "sourceIdentifier": "cret@cert.org"}