On April 9, VMware published VMSA-2020-0006, a security advisory for a critical vulnerability in vCenter Server that received the maximum CVSSv3 score of 10.0. The vulnerablity, CVE-2020-3952 , involves a sensitive information disclosure flaw in the VMware Directory Service (vmdir) which is included with VMware vCenter. Per the advisory, vmdir does not implement proper access controls, which could allow a malicious attacker with network access to obtain sensitive information. This likely can allow the attacker to compromise other services which rely on vmdir for authentication.
We recommend reviewing the security advisory and related KB article and determine if it is applicable for organizations utilizing vCenter and take action as soon as possible to limit exposure.