Hostname Verification Flaw in Apache Geode's TLS Implementation

CVE-2019-10091

What is CVE-2019-10091?

A security vulnerability exists in Apache Geode when TLS is enabled and ssl-endpoint-identification-enabled is set to true. The product fails to properly verify the hostname entries in the Subject Alternative Name (SAN) field during the SSL handshake process. This oversight may allow an attacker to engage in a man-in-the-middle attack, compromising the security of intra-cluster communications. Users of Apache Geode should take immediate steps to assess and mitigate this risk to ensure their deployments remain secure.

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