Category Archives: VMware vExpert

VMSA-2021-0014 updates for VMware ESXi and vCenter address two security vulnerabilities (CVE-2021-21994, CVE-2021-21995)

Today, VMware released an update that addresses an SFCB improper authentication vulnerability (CVE-2021-21994) and an OpenSLP denial-of-service vulnerability (CVE-2021-21995). These two vulnerabilities can be used to compromise virtual Domain Controllers running on ESXi. Note: The vulnerabilities exist in VMware Cloud Foundation, too. The two vulnerabilities were responsibly disclosed to VMware.   About the vulnerabilities SFCB […]

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Fifteen years of things better left unspoken

Today marks the 15th anniversary of the first blog post on this blog, titled The Things That Are Better Left Unspoken. Fifteen years ago, in June, 2006, I posted the first blog post here. Since June 23, 2006, this blog has featured 1,381 more blogposts, 1,041 comments and draws the attention of over 20,000 pairs […]

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VMware Tools v 11.3 fixes a Denial of Service vulnerability (VMSA-2021-0011, CVE-2021-21997, CVSv3 3.3)

This week, VMware introduced a new version of its VMware Tools. The reason for this release is a Denial of Service (DoS) vulnerability. About VMware Tools VMware Tools is a set of services and modules that enable several features in VMware products for better management of, and seamless user interactions with, guest Operating Systems. Although […]

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VMSA-2021-0010 updates for vCenter Server addresses two security vulnerabilities (CVE-2021-21985, CVE-2021-21986)

Today, VMware released an update that addresses two vulnerabilities in its vCenter Server and Cloud Foundation products:: A remote code execution vulnerability in the vSphere Client  (CVE-2021-21985) Authentication mechanism issue in vCenter Server Plug-ins (CVE-2021-21986) About the vulnerabilities remote code execution vulnerability in the vSphere Client (CVE-2021-21985) The vSphere Client (HTML5) contains a remote code […]

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KnowledgeBase: VMware Tools Quiescence corrupts Active Directory backups

Sometimes, IT issues are not what they seem to be. A strange issue reared its ugly head last week regarding something I hold dearly: Active Directory backups. The situation An organization runs Active Directory Domain Controllers virtually on top of VMware vSphere. The VMware Tools are installed on the virtual machine. The organization creates backups […]

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Two improvements in VMware vSphere 7.0 Update 2 are welcome news for Microsoft-oriented Identity-focused admins

This week, VMware released vSphere 7.0 Update 2 on its 6-month release schedule for its vSphere product. It is available to download right away, both through VMware Customer Connect and from within vSphere Lifecycle Manager itself. What’s New In case you missed it, the key focus areas in which VMware is making investments in vSphere […]

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VMSA-2021-0002 updates for VMware ESXi and vCenter address multiple security vulnerabilities (CVE-2021-21972, CVE-2021-21973, CVE-2021-21974)

Yesterday, VMware released an update that addresses three vulnerabilities in its ESXi, vCenter Server and Cloud Foundation products: A remote code execution vulnerability in the vSphere Client (CVE-2021-21972) An SSRF vulnerability in the vSphere Client (CVE-2021-21973) An ESXi OpenSLP heap-overflow vulnerability (CVE-2021-21974) About the vulnerabilities Remote code execution vulnerability in the vSphere Client (CVE-2021-21972) The […]

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I'm a 2021 VMware vExpert

I’m proud to announce I am a 2021 VMware vExpert. This is my third vExpert award in a row. It’s an honor for me to be a part of the team driving Active Directory virtualization on VMware vSphere with Deji Akomolafe and Matt Liebowitz. Thank you!  About the VMware vExpert Program The VMware vExpert Program is VMware’s global evangelism […]

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VMware vSphere 7.0 Update 1 introduces an interface for advanced time synchronization configuration

Back in July 2019, I wrote a blogpost on managing Active Directory Time Synchronization on VMware vSphere. This blogpost details how to configure time settings for Domain Controllers running as virtual machines on top of VMware vSphere. This blogpost introduced the concept of advanced time synchronization configuration. Now it’s time for an update; both for […]

Two vulnerabilities in VMware ESXi may lead to virtual Domain Controller compromise (Critical, VMSA-2020-0026, CVE-2020-4004, CVE-2020-4005)

Today, VMware released an update that addresses a use-after-free vulnerability in the XHCI USB controller (CVE-2020-4004) and a VMX elevation-of-privilege vulnerability CVE-2020-4005). Together these two vulnerabilities can be used to compromise virtual Domain Controllers running on ESXi. Note: The vulnerabilities exist in VMware Cloud Foundation, too. The two vulnerabilities were responsibly disclosed to VMware by […]

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