#VU85882 Improper access control in Hazelcast - CVE-2023-33265

Vulnerability identifier: #VU85882

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33265

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 within the Executor Services. A remote user can bypass implemented security restrictions and execute tasks on members without the required permissions granted.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Hazelcast: 5.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.1 BETA-1, 5.1, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.2.0, 5.2.1, 5.2.2, 5.2.3

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External links
https://support.hazelcast.com/s/article/Security-Advisory-for-CVE-2023-33265
https://github.com/hazelcast/hazelcast/security/advisories/GHSA-c5vj-wp4v-mmvx

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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.