{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-17T03:23:27.570","vulnerabilities":[{"cve":{"id":"CVE-2021-29485","sourceIdentifier":"security-advisories@github.com","published":"2021-06-29T19:15:09.607","lastModified":"2024-11-21T06:01:14.183","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, a malicious attacker can achieve Remote Code Execution (RCE) via a maliciously crafted Java deserialization gadget chain leveraged against the Ratpack session store. If one's application does not use Ratpack's session mechanism, it is not vulnerable. Ratpack 1.9.0 introduces a strict allow-list mechanism that mitigates this vulnerability when used. Two possible workarounds exist. The simplest mitigation for users of earlier versions is to reduce the likelihood of attackers being able to write to the session data store. Alternatively or additionally, the allow-list mechanism could be manually back ported by providing an alternative implementation of `SessionSerializer` that uses an allow-list."},{"lang":"es","value":"Ratpack es un kit de herramientas para crear aplicaciones web. En las versiones anteriores a 1.9.0, un atacante malicioso puede lograr una Ejecución de Código Remota (RCE) por medio de una cadena de gadgets de deserialización de Java maliciosamente diseñada y aprovechada contra el almacén de sesiones de Ratpack. Si una aplicación no usa el mecanismo de sesión de Ratpack, no es vulnerable. Ratpack versión 1.9.0 introduce un mecanismo de lista de permisos estrictos que mitiga esta vulnerabilidad cuando se usa. Se presentan dos posibles soluciones. La mitigación más sencilla para los usuarios de versiones anteriores es reducir la probabilidad de que los atacantes puedan escribir en el almacén de datos de la sesión. Alternativa o adicionalmente, el mecanismo de lista permitida podría ser portado manualmente al proveer una implementación alternativa de \"SessionSerializer\" que use una lista permitida"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","baseScore":9.9,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.1,"impactScore":6.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P","baseScore":6.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-502"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-502"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ratpack_project:ratpack:*:*:*:*:*:*:*:*","versionEndExcluding":"1.9.0","matchCriteriaId":"E972830A-9822-4DD9-BB64-9CC2B69018D5"}]}]}],"references":[{"url":"https://github.com/ratpack/ratpack/security/advisories/GHSA-hc33-32vw-rpp9","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://mvnrepository.com/artifact/io.ratpack/ratpack-core","source":"security-advisories@github.com","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/ratpack/ratpack/security/advisories/GHSA-hc33-32vw-rpp9","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://mvnrepository.com/artifact/io.ratpack/ratpack-core","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]}]}}]}