#VU83419 Input validation error in Elasticsearch - CVE-2023-46673

Vulnerability identifier: #VU83419

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-46673

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Elasticsearch
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the Simulate Pipeline API. A remote user can pass malformed scripts to the script processor of an Ingest Pipeline and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Elasticsearch: 7.0.0 rc1 - 7.0.1, 7.1.0 - 7.17.13, 7.2.0 - 7.2.1, 7.3.0 - 7.3.2, 7.4.0 - 7.4.2, 7.5.0 - 7.5.2, 7.6.0 - 7.6.2, 7.7.0 - 7.7.1, 7.8.0 - 7.8.1, 7.9.0 - 7.9.3, 8.0.0 - 8.0.1, 8.1.0 - 8.10.2, 8.2.0 - 8.2.3, 8.3.0 - 8.3.3, 8.4.0, 8.4.1, 8.4.2, 8.4.3, 8.5.0, 8.5.1, 8.5.2, 8.5.3, 8.6.0, 8.6.1, 8.6.2, 8.7.0, 8.7.1, 8.8.0, 8.8.1, 8.8.2, 8.9.0, 8.9.1, 8.9.2

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External links
https://www.elastic.co/community/security#esa-2023-24

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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.