{"containers": {"cna": {"affected": [{"product": "Apache Dubbo", "vendor": "Apache Software Foundation", "versions": [{"changes": [{"at": "2.7.8", "status": "unaffected"}], "lessThan": "2.6.9", "status": "affected", "version": "Apache Dubbo", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HasMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2024-08-04T11:49:56.000Z", "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache Dubbo default deserialization protocol Hessian2 cause CRE", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@apache.org", "ID": "CVE-2020-11995", "STATE": "PUBLIC", "TITLE": "Apache Dubbo default deserialization protocol Hessian2 cause CRE"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Apache Dubbo", "version": {"version_data": [{"version_affected": "<", "version_name": "Apache Dubbo", "version_value": "2.6.9"}, {"version_affected": "<", "version_name": "Apache Dubbo", "version_value": "2.7.8"}]}}]}, "vendor_name": "Apache Software Foundation"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HasMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-502 Deserialization of Untrusted Data"}]}]}, "references": {"reference_data": [{"name": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E", "refsource": "MISC", "url": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T11:48:57.070Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E"}]}]}, "cveMetadata": {"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "assignerShortName": "apache", "cveId": "CVE-2020-11995", "datePublished": "2021-01-11T09:40:19.000Z", "dateReserved": "2020-04-21T00:00:00.000Z", "dateUpdated": "2025-02-13T16:27:27.063Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*", "matchCriteriaId": "6AA9088D-71FA-4DE0-9DC9-DBE0CCB0AB6B", "versionEndIncluding": "2.5.10", "versionStartIncluding": "2.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*", "matchCriteriaId": "CEC33A7C-991C-4011-A767-351A9E09C7BA", "versionEndIncluding": "2.6.8", "versionStartIncluding": "2.6.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:apache:dubbo:*:*:*:*:*:*:*:*", "matchCriteriaId": "5DD841FC-5CB7-4137-9FB6-7F9A0A35C3B9", "versionEndIncluding": "2.7.7", "versionStartIncluding": "2.7.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A deserialization vulnerability existed in dubbo 2.7.5 and its earlier versions, which could lead to malicious code execution. Most Dubbo users use Hessian2 as the default serialization/deserialization protool, during Hessian2 deserializing the HashMap object, some functions in the classes stored in HasMap will be executed after a series of program calls, however, those special functions may cause remote command execution. For example, the hashCode() function of the EqualsBean class in rome-1.7.0.jar will cause the remotely load malicious classes and execute malicious code by constructing a malicious request. This issue was fixed in Apache Dubbo 2.6.9 and 2.7.8."}, {"lang": "es", "value": "Se detect\u00f3 vulnerabilidad de deserializaci\u00f3n en dubbo versiones 2.7.5 y anteriores, que podr\u00eda conllevar a una ejecuci\u00f3n de c\u00f3digo malicioso. La mayor\u00eda de usuarios de Dubbo usan Hessian2 como el protocolo de serializaci\u00f3n y deserializaci\u00f3n predeterminado, mientras Hessian2 deserializa el objeto HashMap, algunas funciones en el almacenado de clases en HasMap ser\u00e1n ejecutadas despu\u00e9s de una serie de llamadas al programa, sin embargo, esas funciones especiales pueden causar una ejecuci\u00f3n remota de comandos. Por ejemplo, la funci\u00f3n hashCode() de la clase EqualsBean en rome-1.7.0.jar har\u00e1 que las clases maliciosas cargen remotamente y ejecuten c\u00f3digo malicioso al construir una petici\u00f3n maliciosa. Este problema fue corregido en Apache Dubbo versiones 2.6.9 y 2.7.8"}], "id": "CVE-2020-11995", "lastModified": "2024-11-21T04:59:04.567", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-11T10:15:13.187", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r5b2df4ef479209dc4ced457b3d58a887763b60b9354c3dc148b2eb5b%40%3Cdev.dubbo.apache.org%3E"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security@apache.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-502"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}