CVE-2018-18558

{"id": "CVE-2018-18558", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.4, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}]}, "published": "2019-05-13T13:29:02.103", "references": [{"url": "https://github.com/espressif/esp-idf/releases", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29", "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that overwrites a bootloader code segment in process_segment in components/bootloader_support/src/esp_image_format.c. The attack is effective when the flash encryption feature is not enabled, or if the attacker finds a different vulnerability that allows them to write this binary to flash memory."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Espressif ESP-IDF versi\u00f3n 2.x y versi\u00f3n 3.x anterior a 3.0.6 y versi\u00f3n 3.1.x anterior a 3.1.1. La comprobaci\u00f3n insuficiente de los datos de entrada en el gestor de arranque de la segunda etapa permite que un atacante f\u00edsicamente pr\u00f3ximo omita las comprobaciones de arranque seguras y ejecute c\u00f3digo arbitrario, creando un binario de aplicaci\u00f3n que sobrescriba un segmento de c\u00f3digo del gestor de arranque en el par\u00e1metro process_segment en el archivo components/bootloader_support/src/esp_image_format.c. El ataque es exitoso cuando la funci\u00f3n de cifrado flash est\u00e1 inhabilitada, o si el atacante encuentra una vulnerabilidad distinta que le permite escribir este binario en la memoria flash."}], "lastModified": "2023-11-07T02:55:19.017", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A16A6B0D-D949-4CD3-B16B-66B56E381F6C", "versionEndExcluding": "3.0.6", "versionStartIncluding": "2.0"}, {"criteria": "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B969656A-0BC9-4869-96FE-0D08C9EBB83D", "versionEndIncluding": "3.1.1", "versionStartIncluding": "3.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}