Apache Ambari before 2.1, as used in IBM Infosphere BigInsights 4.x before 4.1, includes cleartext passwords on a Configs screen, which allows physically proximate attackers to obtain sensitive information by reading password fields.
Apache Ambari before 2.1, as used in IBM Infosphere BigInsights 4.x before 4.1, stores a cleartext BigSheets password in a configuration file, which allows local users to obtain sensitive information by reading this file.