{ "id": "CVE-2020-15163", "sourceIdentifier": "security-advisories@github.com", "published": "2020-09-09T18:15:22.480", "lastModified": "2024-11-21T05:04:58.837", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "Python TUF (The Update Framework) reference implementation before version 0.12 it will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata (i.e. by a person-in-the-middle attack) culminating in a version which has not been correctly signed to control the trust chain for future updates. This is fixed in version 0.12 and newer." }, { "lang": "es", "value": "Una implementaci\u00f3n de referencia de Python TUF (The Update Framework) anterior a la versi\u00f3n 0.12, confiar\u00e1 incorrectamente en un archivo de metadatos root descargado previamente que present\u00f3 un fallo al verificar en el momento de la descarga. Esto permite a un atacante que es capaz servir m\u00faltiples versiones nuevas de metadatos root (es decir, mediante un ataque de tipo person-in-the-middle) culminar en una versi\u00f3n que no ha sido firmada correctamente para controlar la cadena de confianza de futuras actualizaciones. Esto es corregido en la versi\u00f3n 0.12 y mas recientes." } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 2.3, "impactScore": 5.8 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N", "baseScore": 8.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.8, "impactScore": 5.8 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N", "baseScore": 4.9, "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 6.8, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-863" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-345" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:linuxfoundation:the_update_framework:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.12.0", "matchCriteriaId": "1C553983-7EF8-4874-8793-2526811AA72F" } ] } ] } ], "references": [ { "url": "https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7", "source": "security-advisories@github.com", "tags": [ "Broken Link" ] }, { "url": "https://github.com/theupdateframework/tuf/pull/885", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/releases/tag/v0.12.0", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://pypi.org/project/tuf", "source": "security-advisories@github.com", "tags": [ "Product", "Vendor Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Broken Link" ] }, { "url": "https://github.com/theupdateframework/tuf/pull/885", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/releases/tag/v0.12.0", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mg", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://pypi.org/project/tuf", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Product", "Vendor Advisory" ] } ] }