CVE-2016-9579

Se ha encontrado un error en la forma en la que Ceph Object Gateway procesa peticiones HTTP cross-origin si la política CORS está configurada para permitir el origen en un bucket. Un atacante remoto no autenticado podría utilizar este problema para provocar una denegación de servicio (DoS) mediante el envío de una petición HTTP cross-origin especialmente manipulada. Las ramas de Ceph 1.3.x y 2.x se han visto afectadas.

A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request.

It was discovered that Ceph incorrectly handled the handle_command function. A remote authenticated user could use this issue to cause Ceph to crash, resulting in a denial of service. Rahul Aggarwal discovered that Ceph incorrectly handled the authenticated-read ACL. A remote attacker could possibly use this issue to list bucket contents via a URL. Diluga Salome discovered that Ceph incorrectly handled certain POST objects with null conditions. A remote attacker could possibly use this issue to cuase Ceph to crash, resulting in a denial of service. Various other issues were also addressed.