Hazelcast is a unified real-time data platform combining stream processing with a fast data store. Prior to 5.4.5, 5.5.10, and 5.6.1, improper validation of data supplied by a malicious client able to connect to a cluster allows arbitrary reads from a cluster member's Java heap, off-heap data, and JVM process address space. The same flaw can crash cluster members and, in some Hazelcast Enterprise Edition configurations, corrupt memory with possible arbitrary code execution.
Both slim and full distributions are affected. This issue is fixed in versions 5.4.5, 5.5.10, 5.6.1, and 5.7.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://docs.hazelcast.com/hazelcast/5.7/release-notes/community
security-advisories@github.com
https://docs.hazelcast.com/hazelcast/5.7/release-notes/enterprise
security-advisories@github.com
https://github.com/hazelcast/hazelcast/commit/361979da12f18950c24719db832ca6c5e…
security-advisories@github.com
https://github.com/hazelcast/hazelcast/releases/tag/v5.7.0
security-advisories@github.com
https://github.com/hazelcast/hazelcast/security/advisories/GHSA-6v25-8wq6-xq4j
security-advisories@github.com