CVE-2024-27894

{"id": "CVE-2024-27894", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@apache.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.8}]}, "published": "2024-03-12T19:15:47.970", "references": [{"url": "https://lists.apache.org/thread/45cqhgqg8d19ongjw18ypcss8vwh206p", "source": "security@apache.org"}, {"url": "https://pulsar.apache.org/security/CVE-2024-27894/", "source": "security@apache.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-552"}]}], "descriptions": [{"lang": "en", "value": "The Pulsar Functions Worker includes a capability that permits authenticated users to create functions where the function's implementation is referenced by a URL. The supported URL schemes include \"file\", \"http\", and \"https\". When a function is created using this method, the Functions Worker will retrieve the implementation from the URL provided by the user. However, this feature introduces a vulnerability that can be exploited by an attacker to gain unauthorized access to any file that the Pulsar Functions Worker process has permissions to read. This includes reading the process environment which potentially includes sensitive information, such as secrets. Furthermore, an attacker could leverage this vulnerability to use the Pulsar Functions Worker as a proxy to access the content of remote HTTP and HTTPS endpoint URLs. This could also be used to carry out denial of service attacks.\nThis vulnerability also applies to the Pulsar Broker when it is configured with \"functionsWorkerEnabled=true\".\n\nThis issue affects Apache Pulsar versions from 2.4.0 to 2.10.5, from 2.11.0 to 2.11.3, from 3.0.0 to 3.0.2, from 3.1.0 to 3.1.2, and 3.2.0. \n\n2.10 Pulsar Function Worker users should upgrade to at least 2.10.6.\n2.11 Pulsar Function Worker users should upgrade to at least 2.11.4.\n3.0 Pulsar Function Worker users should upgrade to at least 3.0.3.\n3.1 Pulsar Function Worker users should upgrade to at least 3.1.3.\n3.2 Pulsar Function Worker users should upgrade to at least 3.2.1.\n\nUsers operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.\n\nThe updated versions of Pulsar Functions Worker will, by default, impose restrictions on the creation of functions using URLs. For users who rely on this functionality, the Function Worker configuration provides two configuration keys: \"additionalEnabledConnectorUrlPatterns\" and \"additionalEnabledFunctionsUrlPatterns\". These keys allow users to specify a set of URL patterns that are permitted, enabling the creation of functions using URLs that match the defined patterns. This approach ensures that the feature remains available to those who require it, while limiting the potential for unauthorized access and exploitation."}, {"lang": "es", "value": "Pulsar Functions Worker incluye una capacidad que permite a los usuarios autenticados crear funciones donde se hace referencia a la implementaci\u00f3n de la funci\u00f3n mediante una URL. Los esquemas de URL admitidos incluyen \"archivo\", \"http\" y \"https\". Cuando se crea una funci\u00f3n utilizando este m\u00e9todo, Functions Worker recuperar\u00e1 la implementaci\u00f3n de la URL proporcionada por el usuario. Sin embargo, esta caracter\u00edstica introduce una vulnerabilidad que puede ser aprovechada por un atacante para obtener acceso no autorizado a cualquier archivo para el que el proceso Pulsar Functions Worker tenga permisos de lectura. Esto incluye la lectura del entorno del proceso, que potencialmente incluye informaci\u00f3n confidencial, como secretos. Adem\u00e1s, un atacante podr\u00eda aprovechar esta vulnerabilidad para utilizar Pulsar Functions Worker como proxy para acceder al contenido de las URL de endpoints HTTP y HTTPS remotos. Esto tambi\u00e9n podr\u00eda usarse para llevar a cabo ataques de denegaci\u00f3n de servicio. Esta vulnerabilidad tambi\u00e9n se aplica al Pulsar Broker cuando est\u00e1 configurado con \"functionsWorkerEnabled=true\". Este problema afecta a las versiones de Apache Pulsar de 2.4.0 a 2.10.5, de 2.11.0 a 2.11.3, de 3.0.0 a 3.0.2, de 3.1.0 a 3.1.2 y 3.2.0. 2.10 Los usuarios de Pulsar Function Worker deben actualizar al menos a 2.10.6. 2.11 Los usuarios de Pulsar Function Worker deben actualizar al menos a 2.11.4. Los usuarios de 3.0 Pulsar Function Worker deben actualizar al menos a 3.0.3. 3.1 Los usuarios de Pulsar Function Worker deben actualizar al menos a 3.1.3. 3.2 Los usuarios de Pulsar Function Worker deben actualizar al menos a 3.2.1. Los usuarios que utilicen versiones anteriores a las enumeradas anteriormente deben actualizar a las versiones parcheadas antes mencionadas o a versiones m\u00e1s nuevas. Las versiones actualizadas de Pulsar Functions Worker impondr\u00e1n, de forma predeterminada, restricciones a la creaci\u00f3n de funciones mediante URL. Para los usuarios que dependen de esta funcionalidad, la configuraci\u00f3n de Function Worker proporciona dos claves de configuraci\u00f3n: \"additionalEnabledConnectorUrlPatterns\" y \"additionalEnabledFunctionsUrlPatterns\". Estas claves permiten a los usuarios especificar un conjunto de patrones de URL permitidos, lo que permite la creaci\u00f3n de funciones utilizando URL que coinciden con los patrones definidos. Este enfoque garantiza que la funci\u00f3n permanezca disponible para quienes la requieren, al tiempo que limita el potencial de acceso y explotaci\u00f3n no autorizados."}], "lastModified": "2024-03-13T12:33:51.697", "sourceIdentifier": "security@apache.org"}