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.dls_fls.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.

Affected: Maven: org.elasticsearch:elasticsearch

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.dls_fls.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.

mina-core: Retaining an open socket in close_notify SSL-TLS leading to Information disclosure. elasticsearch: Improper permission issue when attaching a new name to an index jackson-databind: Serialization gadgets in com.zaxxer.hikari.HikariConfig jackson-databind: Serialization gadgets in classes of the commons-configuration package jackson-databind: Serialization gadgets in classes of the xalan package jackson-databind: Serialization gadgets in com.zaxxer.hikari.HikariDataSource jackson-databind: Serialization gadgets in org.apache.commons.dbcp.datasources.* jackson-databind: Serialization gadgets in com.p6spy.engine.spy.P6DataSource jackson-databind: Serialization gadgets in classes of the ehcache package jackson-databind: Serialization gadgets in org.apache.log4j.receivers.db.*