VMware warns of the public availability of CVE-2021-39144 exploit code

VMware warned of the availability of a public exploit for a recently addressed critical remote code execution flaw in NSX Data Center for vSphere (NSX-V).

VMware warned of the existence of a public exploit targeting a recently addressed critical remote code execution (RCE) vulnerability, tracked as CVE-2021-39144 (CVSS score of 9.8), in NSX Data Center for vSphere (NSX-V).

VMware NSX is a network virtualization solution that is available in VMware vCenter Server.

The remote code execution vulnerability resides in the XStream open-source library. Unauthenticated attackers can exploit the vulnerability in low-complexity attacks without user interaction.

“Due to an unauthenticated endpoint that leverages XStream for input serialization in VMware Cloud Foundation (NSX-V), a malicious actor can get remote code execution in the context of ‘root’ on the appliance.” reads the advisory published by the company.

The product team has also released patches for end-of-life products due to the severity of the vulnerability.

“VMware has confirmed that exploit code leveraging CVE-2021-39144 against impacted products has been published.” reads the advisory published by the virtualization giant.

The virtualization firm also published separate guidance to upgrade NSX-V 6.4.14 appliances on Cloud Foundation 3.x.

The company urges its customers to upgrade their installs to the latest release.

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Pierluigi Paganini

(SecurityAffairs – hacking, NSX-V)

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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”.