A permission issue was found in Elasticsearch versions before 5.6.15 and 6.6.1 when Field Level Security and Document Level Security are disabled and the _aliases, _shrink, or split endpoints are used . If the elasticsearch.yml file has xpack.security.dlsfls.enabled set to false, certain permission checks are skipped when users perform one of the actions mentioned above, to make existing data available under a new index/alias name. This could result in an attacker gaining additional permissions against a restricted index.
{
"cpe": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "5.6.15"
},
{
"introduced": "6.0.0"
},
{
"fixed": "6.6.1"
}
],
"source": "CPE_RANGE"
}