#VU64866 Improper Check for Unusual or Exceptional Conditions in Elasticsearch - CVE-2022-23712

Vulnerability identifier: #VU64866

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-23712

CWE-ID: CWE-754

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Elasticsearch
Web applications / Other software

Vendor: Elastic Stack

Description

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

The vulnerability exists due to improper error handling. A remote attacker can send specifically formatted network request to the application and forcibly shut down an Elasticsearch node.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Elasticsearch: 8.0.0 - 8.0.1, 8.1.0 - 8.1.3, 8.2.0

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External links
http://www.elastic.co/community/security/
http://discuss.elastic.co/t/elastic-stack-7-17-4-and-8-2-1-security-update/305530
http://bugzilla.redhat.com/show_bug.cgi?id=2094515

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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