#VU86859 Improper access control in Hazelcast - CVE-2023-45859

Vulnerability identifier: #VU86859

Vulnerability risk: Medium

CVSSv4.0: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-45859

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Hazelcast
Server applications / Other server solutions

Vendor: Hazelcast

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions for certain client operations. A remote user can bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Hazelcast: 4.1 - 4.1.10, 4.2 - 4.2021.06, 5.0 - 5.0.5, 5.1 BETA-1 - 5.1.7, 5.2.0 - 5.2.4, 5.3.0 - 5.3.2

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External links
https://github.com/hazelcast/hazelcast/security/advisories/GHSA-xh6m-7cr7-xx66

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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.