Threat actors are actively exploiting a vulnerability in an older version of Elasticsearch software in order to add distributed denial-of-service (DDoS) malware in Amazon Elastic Compute Cloud (EC2) services.Elasticsearch is an open source search server that can be used to look for various types of documents; its advantages include scalability, almost real-time search and support for multi-latency.The security flaw, CVE-2014-3120, exists in the scripting capability of the software, which can b…