|Synopsis||VMware vCenter Server updates address sensitive information disclosure vulnerability in the VMware Directory Service (vmdir) (CVE-2020-3952)
Under certain conditions1 vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 10.0.
Known Attack Vectors:
A malicious actor with network access to port 389 on an affected vmdir deployment1 may be able to extract highly sensitive information such as administrative account credentials which could be used to compromise vCenter Server or other services which are dependent upon vmdir for authentication. Variant attack vectors such as creating new attacker-controlled administrative accounts are also possible.
To remediate CVE-2020-3952 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments.
VMware has created KB78543 which details steps to determine whether or not a particular deployment is affected by CVE-2020-3952.
1vCenter Server 6.7 (embedded or external PSC) prior to 6.7u3f is affected by CVE-2020-3952 if it was upgraded from a previous release line such as 6.0 or 6.5. Clean installations of vCenter Server 6.7 (embedded or external PSC) are not affected.
|Product||Version||Running On||CVE Identifier||CVSSV3||Severity||Fixed Version||Workarounds||Additional Documentation|
|vCenter Server||6.7||Virtual Appliance||CVE-2020-3952||10.0||Critical||6.7u3f||None||KB78543|
Fixed Version(s) and Release Notes:
vCenter Server 6.7u3f:
Mitre CVE Dictionary Links:
FIRST CVSSv3 Calculator:
5. Change log
Initial security advisory.
Updated 'Known Attack Vectors' section with additional details.
E-mail list for product security notifications and announcements:
This Security Advisory is posted to the following lists:
PGP key at:
VMware Security Advisories
VMware Security Response Policy
VMware Lifecycle Support Phases
VMware Security & Compliance Blog
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