CVE-2022-36437

Description

### Impact The Connection handler in Hazelcast and Hazelcast Jet allows an unauthenticated, remote attacker to access and manipulate data in the cluster with another authenticated connection's identity. The affected Hazelcast versions are through 3.12.12, 4.0.6, 4.1.9, 4.2.5, 5.0.3, and 5.1.2. The affected Hazelcast Jet versions are through 4.5.3. ### Patches Hazelcast Jet (and Enterprise) 4.5.4. Hazelcast IMDG (and Enterprise)3.12.13 Hazelcast IMDG (and Enterprise) 4.1.10 Hazelcast IMDG (and Enterprise) 4.2.6 Hazelcast Platform (and Enterprise) 5.1.3 ### Workarounds There is no known workaround, but setups with TLS and mutual authentication enabled significantly lowers the exploitation risk. ### References https://support.hazelcast.com/s/article/Security-Advisory-for-CVE-2022-36437

How to fix CVE-2022-36437

To remediate CVE-2022-36437, upgrade the affected package to a fixed version below.

• —upgrade to 3.12.13 or later
• —upgrade to 3.12.13 or later
• —upgrade to 4.5.4 or later
• —upgrade to 4.5.4 or later

Is CVE-2022-36437 being exploited?

Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 3.12.13
• from 0, < 3.12.13
• from 0, < 4.5.4
• from 0, < 4.5.4

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-36437
• PATCHgithub.com/hazelcast/hazelcast
• WEBgithub.com/hazelcast/hazelcast/security/advisories/GHSA-c5hg-mr8r-f6jp
• WEBsupport.hazelcast.com/s/article/Security-Advisory-for-CVE-2022-36437