Denial of service in Elasticsearch

1) Input validation error

EUVDB-ID: #VU83419

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 - Improper input validation

Exploit availability: No

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 - 8.10.2

CPE2.3

• cpe:2.3:a:elastic_stack:elasticsearch:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.0.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.0.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.0.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.3.0:*:*:*:*:*:*:*

External links

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

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.