{ "id": "CVE-2020-26238", "sourceIdentifier": "security-advisories@github.com", "published": "2020-11-25T00:15:10.747", "lastModified": "2024-11-21T05:19:37.353", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils before version 9.1.3, a template Injection vulnerability is present. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected. This issue was patched in version 9.1.3." }, { "lang": "es", "value": "Cron-utils es una biblioteca de Java para analizar, comprobar, migrar crons y obtener descripciones legibles por humanos para ellos. En cron-utils versiones anteriores a 9.1.3, se presenta una vulnerabilidad de inyecci\u00f3n de plantilla. Esto permite a atacantes inyectar expresiones EL de Java arbitrarias, conllevando a una vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota (RCE) no autenticada. Solo est\u00e1n afectados los proyectos que usan la anotaci\u00f3n @Cron para comprobar expresiones Cron que no son confiables. Este problema se corrigi\u00f3 en la versi\u00f3n 9.1.3" } ], "metrics": { "cvssMetricV31": [ { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 7.9, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.5, "impactScore": 5.8 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 2.2, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "baseScore": 6.8, "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-74" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:cron-utils_project:cron-utils:*:*:*:*:*:*:*:*", "versionEndExcluding": "9.1.3", "matchCriteriaId": "8238FCBC-72CF-45D6-93F9-FF1B7D14046F" } ] } ] } ], "references": [ { "url": "https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/jmrozanec/cron-utils/issues/461", "source": "security-advisories@github.com", "tags": [ "Exploit", "Issue Tracking", 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