CVE-2024-23451: elasticsearch Auth Bypass — Fix

Description

Incorrect Authorization issue exists in the API key based security model for Remote Cluster Security, which is currently in Beta, in Elasticsearch 8.10.0 and before 8.13.0. This allows a malicious user with a valid API key for a remote cluster configured to use the new Remote Cluster Security to read arbitrary documents from any index on the remote cluster, and only if they use the Elasticsearch custom transport protocol to issue requests with the target index ID, the shard ID and the document ID. None of Elasticsearch REST API endpoints are affected by this issue.

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CVSS v3.1 Score

4.4

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
elastic	elasticsearch	8.10.0 — 8.13.0

References

Advisories & Patches

https://discuss.elastic.co/t/elasticsearch-8-13-0-security-update-esa-2024-07/356315 https://discuss.elastic.co/t/elasticsearch-8-13-0-security-update-esa-2024-07/356315

Frequently Asked Questions

What is CVE-2024-23451? +

Incorrect Authorization issue exists in the API key based security model for Remote Cluster Security, which is currently in Beta, in Elasticsearch 8.10.0 and before 8.13.0. This allows a malicious user with a valid API key for a remote cluster configured to use the new Remote Cluster Security to read arbitrary documents from any index on the remote cluster, and only if they use the Elasticsearch custom transport protocol to issue requests with the target index ID, the shard ID and the document ID. None of Elasticsearch REST API endpoints are affected by this issue. It has a CVSS v3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2024-23451? +

CVE-2024-23451 has a CVSS v3.1 score of 4.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-23451? +

CVE-2024-23451 affects products from elastic, specifically: elasticsearch. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23451? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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