{ "id": "CVE-2020-15093", "sourceIdentifier": "security-advisories@github.com", "published": "2020-07-09T19:15:11.413", "lastModified": "2021-10-26T19:58:35.917", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "The tough library (Rust/crates.io) prior to version 0.7.1 does not properly verify the threshold of cryptographic signatures. It allows an attacker to duplicate a valid signature in order to circumvent TUF requiring a minimum threshold of unique signatures before the metadata is considered valid. A fix is available in version 0.7.1. CVE-2020-6174 is assigned to the same vulnerability in the TUF reference implementation." }, { "lang": "es", "value": "La biblioteca tough (Rust/crates.io) anterior a la versi\u00f3n 0.7.1, no verifica apropiadamente el umbral de firmas criptogr\u00e1ficas. Permite a un atacante duplicar una firma v\u00e1lida a fin de eludir TUF que requiere un umbral m\u00ednimo de firmas \u00fanicas antes de que los metadatos se consideraran v\u00e1lidos. Una correcci\u00f3n est\u00e1 disponible en la versi\u00f3n 0.7.1. El CVE-2020-6174 es asignado a la misma vulnerabilidad en la implementaci\u00f3n de la referencia TUF" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 4.0 }, { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 4.0 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 5.0 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-347" } ] }, { "source": "security-advisories@github.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-347" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:amazon:tough:*:*:*:*:*:rust:*:*", "versionEndExcluding": "0.7.1", "matchCriteriaId": "F72751E9-9A5B-46F0-93CF-AC75DDEF1C17" } ] } ] } ], "references": [ { "url": "https://crates.io/crates/tough", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0e", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/theupdateframework/tuf/pull/974", "source": "security-advisories@github.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ] } ] }