CVE-2020-3952 : Under certain conditions, vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Servi

Under certain conditions, vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls.

Published 2020-04-10 14:15:12

Updated 2022-07-12 17:42:04

Source VMware

View at NVD, CVE.org

CVE-2020-3952 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

VMware vCenter Server Information Disclosure Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

VMware vCenter Server contains an information disclosure vulnerability in the VMware Directory Service (vmdir) when the Platform Services Controller (PSC) does not correctly implement access controls. Successful exploitation allows an attacker with network access to port 389 to extract sensitive inf

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2020-3952

Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2020-3952

EPSS FAQ

71.14%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 98 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-3952

VMware vCenter Server vmdir Information Disclosure

Disclosure Date: 2020-04-09

First seen: 2020-04-26

auxiliary/gather/vmware_vcenter_vmdir_ldap

This module uses an anonymous-bind LDAP connection to dump data from the vmdir service in VMware vCenter Server version 6.7 prior to the 6.7U3f update, only if upgraded from a previous release line, such as 6.0 or 6.5. If the bind username and passw

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LDAP Information Disclosure

Disclosure Date: 2020-07-23

First seen: 2020-08-27

auxiliary/gather/ldap_hashdump

This module uses an anonymous-bind LDAP connection to dump data from an LDAP server. Searching for attributes with user credentials (e.g. userPassword). Authors: - Hynek Petrak

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VMware vCenter Server vmdir Authentication Bypass

Disclosure Date: 2020-04-09

First seen: 2020-04-26

auxiliary/admin/ldap/vmware_vcenter_vmdir_auth_bypass

This module bypasses LDAP authentication in VMware vCenter Server's vmdir service to add an arbitrary administrator user. Version 6.7 prior to the 6.7U3f update is vulnerable, only if upgraded from a previous release line, such as 6.0 or 6.5. Note t

More information

CVSS scores for CVE-2020-3952

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-3952

CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-3952

https://www.vmware.com/security/advisories/VMSA-2020-0006

VMSA-2020-0006
Vendor Advisory
http://packetstormsecurity.com/files/157896/VMware-vCenter-Server-6.7-Authentication-Bypass.html

VMware vCenter Server 6.7 Authentication Bypass ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry

Products affected by CVE-2020-3952

Vmware » Vcenter Server » Version: 6.7
cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2020-3952