Elastic AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Elastic CWE-502

A deserialization issue in Kibana can lead to arbitrary code execution when Kibana attempts to parse a YAML document containing a crafted payload. A successful attack requires a malicious user to have a combination of both specific  Elasticsearch indices privileges https://www.elastic.co/guide/en/elasticsearch/reference/current/defining-roles.html#roles-indices-priv  and  Kibana privileges https://www.elastic.co/guide/en/fleet/current/fleet-roles-and-privileges.html  assigned to them.



The following Elasticsearch indices permissions are required

  *  write privilege on the system indices .kibana_ingest*
  *  The allow_restricted_indices flag is set to true


Any of the following Kibana privileges are additionally required

  *  Under Fleet the All privilege is granted
  *  Under Integration the Read or All privilege is granted
  *  Access to the fleet-setup privilege is gained through the Fleet Server’s service account token

Elastic https://discuss.elastic.co/t/kibana-8-15-1-security-update-esa-2024-27-esa-2024-28/366119 [No types assigned]