#VU91269 Permissions, Privileges, and Access Controls in Elasticsearch - CVE-2024-23445

Vulnerability identifier: #VU91269

Vulnerability risk: Medium

CVSSv4.0: 5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-23445

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Elasticsearch
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to improperly imposed security restrictions on the API key for the cross-cluster search. If a cross-cluster API key restricts search for a given index using the query or the field_security parameter, and the same cross-cluster API key also grants replication for the same index, the search restrictions are not enforced during cross cluster search operations and search results may include documents and terms that should not be returned. A remote user can gain access to potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Elasticsearch: 8.10.0 - 8.13.4

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External links
https://discuss.elastic.co/t/elasticsearch-8-14-0-security-update-esa-2024-13/360898

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.