Security

Recently disclosed CVE-2020-4006 VMware zero-day was reported by NSA

VMware addressed CVE-2020-4006 zero-day flaw in VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector.

VMware has finally released security updates to fix the CVE-2020-4006 zero-day flaw in VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector.

At the end of November, VMware only has released a workaround to address the critical zero-day vulnerability that affects multiple VMware Workspace One components. VMware Workspace ONE allows to simply and securely deliver and manage any app on any device. The flaw is a command injection bug that could be exploited by attackers to execute commands on the host Linux and Windows operating systems using escalated privileges.

“VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector contain a Command Injection Vulnerability in the administrative configurator. VMware has evaluated the this issue to be of Critical severity with a maximum CVSSv3 base score of 9.1.” reads the security advisory published by the virtualization giant.

Affected versions are:

  • VMware Workspace One Access 20.10 (Linux)
  • VMware Workspace One Access  20.01 (Linux)
  • VMware Identity Manager 3.3.1 up to 3.3.3 (Linux)
  • VMware Identity Manager Connector 3.3.2, 3.3.1 (Linux)
  • VMware Identity Manager Connector 3.3.3, 3.3.2, 3.3.1 (Windows)

The Cybersecurity and Infrastructure Security Agency (CISA) also published a security advisory on the CVE-2020-4006 zero-day flaw.

“VMware has released workarounds to address a vulnerability—CVE-2020-4006—in VMware Workspace One Access, Access Connector, Identity Manager, and Identity Manager Connector. An attacker could exploit this vulnerability to take control of an affected system.” reads the CISA’s advisory.

At the time of the public disclosure of the flaw, VMware did not reveal the identity of the organization or researcher who reported the vulnerability. Now the virtualization giant confirmed that the zero-day vulnerability was reported by the US intelligence agency NSA.

VMware downplayed the severity of the bug to 7.2/10 score rating the issue from ‘Critical’ to ‘Important.’

“A malicious actor with network access to the administrative configurator on port 8443 and a valid password for the configurator admin account can execute commands with unrestricted privileges on the underlying operating system,” the advisory explains.

“This account is internal to the impacted products and a password is set at the time of deployment. A malicious actor must possess this password to attempt to exploit CVE-2020-4006.”

Below the list of updates for CVE-2020-4006 provided by the company.

Affected productPatch
VMware Workspace ONE Access20.10
VMware Workspace ONE Access20.01
VMware Identity Manager19.03
VMware Identity Manager19.03.0.1
VMware Identity Manager3.3.3
VMware Identity Manager3.3.2
VMware Identity Manager3.3.1

DHS-CISA published an alert to encourage admins and users to install the security updates released by VMware to prevent CVE-2020-4006 exploitation.

“The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review VMware Security Advisory VMSA-2020-0027.2 and apply the necessary updates.” states the advisory published by CISA.

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Pierluigi Paganini

(SecurityAffairs – hacking, malware)

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Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

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