Wednesday, July 24, 2024

Critical VMware Flaw Let Attackers to Hack VMware vCenter Server

VMware patches a critical security vulnerability that allows malicious attackers to obtain sensitive information.

The vulnerability can be tracked as CVE-2020-3952, it is rated as critical and receives a CVSSv3 score of 10.

VMware vCenter Server Vulnerability

The vulnerability resides in the VMware Directory Service (vmdir) which is a part of vCenter Server version 6.7 on Windows and virtual appliances.

In certain conditions, the vmdir does not implement proper security controls, which allows attackers with network access to access sensitive information.

By using the accessed information attacker can compromise vCenter Server or other services that depend on vmdir for authentication.

If you are using vCenter Server version 6.7, it is recommended to update with 6.7u3f to fix the critical vulnerability.

ProductVersionPlatformAffectedFixedAdditional Documentation
vCenter Server6.7Virtual ApplianceYes6.7u3fKB78543
vCenter Server6.7WindowsYes6.7u3fKB78543

Here is the example log to check with affected deployments.

2020-04-06T17:50:41.860526+00:00 info vmdird t@139910871058176: ACL MODE: Legacy

VMware also mentioned that “Clean installations of vCenter Server 6.7 (embedded or external PSC) are not affected.”

In March VMware address high severity privilege escalation and DoS in the Workstation, Fusion, VMware Remote Console and Horizon Client.

VMware also published KB article 78543 for more details if a vCenter Server 6.7 deployment is affected.


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Guru baran
Guru baran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

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