What We Do
How we do it
Resources
SECURITY ADVISORIES
Sep 14, 2021
Update 2: Microsoft Zero-Day Vulnerability Announced - CVE-2021-40444
THE THREAT UPDATE 2: As of September 14th, Microsoft has released security patches to address CVE-2021-40444 for all impacted versions of Windows. eSentire has tested the update and confirmed its validity against public exploits. Organizations are strongly recommended to apply these security patches as soon as possible, as exploitation in the wild is ongoing. UPDATE: As of September 11th,…
Read More
View all Advisories →
Company
ABOUT eSENTIRE
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1000+ organizations in 70+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
LATEST PRESS RELEASE
Aug 25, 2021
eSentire named a Leader in IDC MarketScape for U.S. Managed Detection and Response Services
August 26, 2021 – Waterloo, ON -  eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), announced today that it has been named a Leader in the IDC MarketScape: U.S. Managed Detection and Response Services 2021 Vendor Assessment (doc #US48129921, August 2021). IDC defines the core services an MDR must provide as follows: reduced time for onboarding, 24/7…
Read More
Partners
PARTNER PROGRAM
Partners
Our award-winning partner program offers financial rewards, sales and marketing tools and personalized training. Accelerate your business and grow your revenue by offering our world-class Managed Detection and Response (MDR) services.
Learn about our Partner Program
Search
Resources
Security advisories — May 26, 2021

Critical VMware Vulnerability CVE-2021-21985

THE THREAT

VMware has announced a new critical vulnerability impacting VMware vCenter Servers, tracked as CVE-2021-21985 (CVSS:9.8). VMware vCenter Servers using standard configurations that are exposed to the internet over port 443, are affected. Exploitation of CVE-2021-21985 may allow for Remote Code Execution (RCE) on the underlying operating system.

Due to the high severity of the vulnerability and the potential impact of exploitation, eSentire assesses that threat actors will exploit this vulnerability in the near future. Organizations are strongly recommended to apply the available security patches as soon as possible.

What we’re doing about it

What you should do about it

Additional information

CVE-2021-21985 should be prioritized for patching as soon as possible. VMware vulnerabilities have been heavily exploited in the past by both financially motivated criminals and Nation-State APT groups. VMware announced a similar vulnerability in February 2021, and Proof-of-Concept (PoC) exploit code was publicly available within 24 hours of the release.

In addition to CVE-2021-21985, VMware has also announced a less critical authentication plugin vulnerability tracked as CVE-2021-21986 (CVSS: 6.5).

Vulnerability Details:

Impacted Products:

References:

[1] https://www.vmware.com/security/advisories/VMSA-2021-0010.html
[2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21985
[3] https://kb.vmware.com/s/article/83829
[4] https://www.esentire.com/security-advisories/vmware-remote-code-execution-vulnerability