CVE-2021-36162

{"id": "CVE-2021-36162", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-09-07T10:15:07.253", "references": [{"url": "https://lists.apache.org/thread.html/rfa351115a459e214b99ffcc52c35f33359f3370c547d9c6ba1a60037%40%3Cdev.dubbo.apache.org%3E", "tags": ["Mailing List", "Vendor Advisory"], "source": "security@apache.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) and retrieved by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which by default will enable calling arbitrary constructors. An attacker with access to the configuration center he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2"}, {"lang": "es", "value": "Apache Dubbo es compatible con varias reglas para soportar la anulaci\u00f3n de la configuraci\u00f3n o el enrutamiento del tr\u00e1fico (llamado enrutamiento en Dubbo). Estas reglas son cargadas en el centro de configuraci\u00f3n (por ejemplo: Zookeeper, Nacos, ...) y son recuperadas por los clientes cuando hacen una petici\u00f3n con el fin de encontrar el endpoint correcto. Cuando son analizadas estas reglas YAML, los clientes de Dubbo usar\u00e1n la biblioteca SnakeYAML para cargar las reglas que, por defecto, permitir\u00e1n llamar a constructores arbitrarios. Un atacante con acceso al centro de configuraci\u00f3n podr\u00e1 envenenar la regla para que cuando sea recuperada por los consumidores, obtenga RCE en todos ellos. Esto fue corregido en Dubbo versiones 2.7.13, 3.0.2"}], "lastModified": "2021-09-14T15:19:52.543", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B5520546-424D-48E9-BAF1-F9F9969B81F9", "versionEndIncluding": "2.7.12", "versionStartIncluding": "2.7.0"}, {"criteria": "cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F6E13EEA-50E4-4E45-9C9E-8E32F6A765A5", "versionEndIncluding": "3.0.1", "versionStartIncluding": "3.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}