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Vulnerability of Elasticsearch: information disclosure via Cross-cluster Search Queries

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Cross-cluster Search Queries of Elasticsearch, in order to obtain sensitive information.
Vulnerable systems: Elasticsearch.
Severity of this threat: 2/4.
Creation date: 24/03/2021.
Références of this weakness: CVE-2021-22137, VIGILANCE-VUL-34928.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Cross-cluster Search Quer...
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This security bulletin impacts software or systems such as Elasticsearch.

Our Vigil@nce team determined that the severity of this cybersecurity announce is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

This vulnerability workaround will be public soon.
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