Splunk: CVE-2022-32156: Splunk Enterprise and Universal Forwarder CLI connections lacked TLS certificate validation

In Splunk Enterprise and Universal Forwarder versions before 9.0, the Splunk command-line interface (CLI) did not validate TLS certificates while connecting to a remote Splunk platform instance by default. Splunk peer communications configured properly with valid certificates were not vulnerable. However, connections from misconfigured nodes without valid certificates did not fail by default. After updating to version 9.0, seeConfigure TLS host name validation for the Splunk CLIto enable the remediation. The vulnerability does not affect the Splunk Cloud Platform. At the time of publishing, we have no evidence of exploitation of this vulnerability by external parties.