CVE-2023-33265 Hazelcast Executor Services don't check client permissions properly

What is CVE-2023-33265?

CVE-2023-33265 is a high-severity missing authorization vulnerability in n/a, published on 18 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Hazelcast through 5.0.4, 5.1 through 5.1.6, and 5.2 through 5.2.3, executor services don't check client permissions properly, allowing authenticated users to execute tasks on members without the required permissions granted.

Weakness: CWE-862

Which versions are affected by CVE-2023-33265?

12 open source packages ship an affected version, including com.hazelcast:hazelcast and com.hazelcast:hazelcast-enterprise. It affects 2 products.

Products include Hazelcast Hazelcast, Hazelcast Imdg.

How do I fix CVE-2023-33265?

Upgrade com.hazelcast:hazelcast to a fixed version for your release line: 5.0.5, 5.1.7 or 5.2.4.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-33265 being exploited?

There is no known exploitation of CVE-2023-33265 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2020-26168 Auth bypass in n/a Critical 9.8
• CVE-2022-36437 Hazelcast connection caching Critical 9.1
• CVE-2016-10750 Deserialization of Untrusted Data in Hazelcast High 8.1
• CVE-2023-45859 Missing permission checks on Hazelcast client protocol High 7.6
• CVE-2022-0265 Improper Restriction of XML External Entity Reference in hazelcast/hazelcast High 7.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-c5vj-wp4v-mmvx.