Improper Certificate Validation in Apache Geode - CVE-2019-10091

Vulnerability identifier: #VU26311

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2019-10091

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Apache Foundation

Affected software:
Apache Geode

The vulnerability allows a remote attacker to perform a man-in-the-middle attack.

The vulnerability exists when TLS is enabled with ssl-endpoint-identification-enabled set to true, due to the affected software fails to perform hostname verification of the entries in the certificate SAN during the SSL handshake. A remote attacker can supply a specially crafted certificate, perform a man-in-the-middle attack and eavesdrop on an encrypted communication.

Install updates from vendor's website.

• https://lists.apache.org/thread.html/r3342077ac4798631300366be86e545d0c08753cca8fd2663867fe200%40%3Cdev.geode.apache.org%3E
• https://github.com/apache/geode/pull/3849/files