This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects attempts of leveraging a vulnerability in Elasticsearch which could lead to executing arbitrary Java code.
Elasticsearch is an open-source search engine.
Elasticsearch is prone to an arbitrary code-execution vulnerability because the it fails to sufficiently sanitize the user-supplied input. Specifically, this issue affects the 'search' function.
Note: To exploit this issue, dynamic scripting must be enabled.
An attacker could exploit this issue to execute arbitrary Java code in the context of the application.
- Elasticsearch 1.2 and prior are vulnerable.