On Tuesday, VMWare published an advisory for multiple vulnerabilities, including two flaws, in VMware vCenter Server.

Experts Comments

February 25, 2021
Satnam Narang
Senior Research Engineer
Tenable

At least four proof-of-concept exploit scripts for CVE-2021-21972, a critical remote code execution flaw in VMWare’s vCenter Server solution are currently available. We know that the availability of proof-of-concept code or exploit scripts following the publication of a critical vulnerability is a boon for threat actors.

 

While some cyber criminals may be adept at developing their own proof-of-concept exploits, threat actors are keen on leveraging what’s publicly available, as evidenced in

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At least four proof-of-concept exploit scripts for CVE-2021-21972, a critical remote code execution flaw in VMWare’s vCenter Server solution are currently available. We know that the availability of proof-of-concept code or exploit scripts following the publication of a critical vulnerability is a boon for threat actors.

 

While some cyber criminals may be adept at developing their own proof-of-concept exploits, threat actors are keen on leveraging what’s publicly available, as evidenced in the Copy Paste Compromises report from the Australian Cyber Security Centre in June 2020 that arrived at the same conclusion.

 

There are confirmed reports that attackers are probing for vulnerable vCenter Server systems. According to a Shodan search, there are over 6,700 publicly accessible vCenter Servers. Coupled with the availability of these exploit scripts, it is all the more imperative for organizations to apply the available patches immediately instead of relying on temporary workarounds.

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