#VU101750 Improper Authentication in OpenSearch - CVE-2023-23612

Vulnerability identifier: #VU101750

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-23612

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenSearch
Other software / Other software solutions

Vendor: OpenSearch

Description

The vulnerability allows a remote privileged user to bypass authentication process.

The vulnerability exists due to a flaw in with whitespace in JWT roles. A remote privileged user can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenSearch: before 1.3.8

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External links
https://github.com/opensearch-project/OpenSearch/releases/tag/2.5.0
https://github.com/opensearch-project/security/security/advisories/GHSA-864v-6qj7-62qj

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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