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Submission: On February 06 via api from IN — Scanned from DE
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Skip to Promo Skip to main content Global Search US Store Login Cloud Services Console Customer Connect Partner Connect * Multi-Cloud Environments * Products * Solutions * Partners * Resources GET STARTED Global Search Main Menu TAKE CONTROL OF YOUR MULTI-CLOUD ENVIRONMENT 73% OF ENTERPRISES USE TWO OR MORE PUBLIC CLOUDS TODAY. WHILE MULTI-CLOUD ACCELERATES DIGITAL TRANSFORMATION, IT ALSO INTRODUCES COMPLEXITY AND RISK. VMWARE CROSS-CLOUD™ SERVICES ENABLE ORGANIZATIONS TO UNLOCK THE POTENTIAL OF MULTI-CLOUD WITH ENTERPRISE SECURITY AND RESILIENCY. BUILD & OPERATE CLOUD NATIVE APPS GIVE DEVELOPERS THE FLEXIBILITY TO USE ANY APP FRAMEWORK AND TOOLING FOR A SECURE, CONSISTENT AND FAST PATH TO PRODUCTION ON ANY CLOUD. CONNECT & SECURE APPS & CLOUDS DELIVER SECURITY AND NETWORKING AS A BUILT-IN DISTRIBUTED SERVICE ACROSS USERS, APPS, DEVICES, AND WORKLOADS IN ANY CLOUD. RUN ENTERPRISE APPS ANYWHERE RUN ENTERPRISE APPS AND PLATFORM SERVICES AT SCALE ACROSS PUBLIC AND TELCO CLOUDS, DATA CENTERS AND EDGE ENVIRONMENTS. AUTOMATE & OPTIMIZE APPS & CLOUDS OPERATE APPS AND INFRASTRUCTURE CONSISTENTLY, WITH UNIFIED GOVERNANCE AND VISIBILITY INTO PERFORMANCE AND COSTS ACROSS CLOUDS. ACCESS ANY APP ON ANY DEVICE EMPOWER YOUR EMPLOYEES TO BE PRODUCTIVE FROM ANYWHERE, WITH SECURE, FRICTIONLESS ACCESS TO ENTERPRISE APPS FROM ANY DEVICE. SEE HOW VMWARE CAN HELP LEARN ABOUT CROSS-CLOUD SERVICES Main Menu ANYWHERE WORKSPACE Access Any App on Any Device Securely Horizon Horizon Cloud Workspace ONE Workspace ONE UEM APP PLATFORM Build and Operate Cloud Native Apps Tanzu CLOUD & EDGE INFRASTRUCTURE Run Enterprise Apps Anywhere SD-WAN/SASE Telco Cloud vCenter vSAN/vSAN+ vSphere/vSphere+ VMware Cloud Disaster Recovery CLOUD MANAGEMENT Automate and Optimize Apps and Clouds VMware Aria CloudHealth Skyline DESKTOP HYPERVISOR Manage apps in a local virtualization sandbox Fusion for Mac Workstation Player Workstation Pro SECURITY & NETWORKING Connect and Secure Apps and Clouds Carbon Black Cloud Carbon Black Endpoint NSX NSX Advanced Load Balancer NSX Distributed Firewall RUN VMWARE ON ANY CLOUD. ANY ENVIRONMENT. ANYWHERE. 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VIEW PARTNER STORY Main Menu TOOLS & TRAINING VMware Customer Connect VMware Trust Center Learning & Certification Tech Zone Product Downloads Product Trials Cloud Services Engagement Platform Hands-on Labs SERVICES Professional Services Customer Success SUPPORT VMware Customer Connect Support Offerings Skyline Support Customer Welcome Center MARKETPLACE Cloud Marketplace VMware Marketplace BLOGS & COMMUNITIES Blogs Podcasts News & Stories Communities CUSTOMERS Customer Stories EVENTS VMware Explore SpringOne All Events & Webcasts SEE ALL RESOURCES Ellipsis VMware Security Solutions Advisories VMSA-2021-0002 Critical Advisory ID: VMSA-2021-0002 CVSSv3 Range: 5.3-9.8 Issue Date: 2021-02-23 Updated On: 2021-02-23 (Initial Advisory) CVE(s): CVE-2021-21972, CVE-2021-21973, CVE-2021-21974 Synopsis: VMware ESXi and vCenter Server updates address multiple security vulnerabilities (CVE-2021-21972, CVE-2021-21973, CVE-2021-21974) RSS Feed Download PDF Download Text File Share this page on social media: Sign up for Security Advisories SIGN UP FOR SECURITY ADVISORIES Stay up to date on the latest VMware Security advisories and updates. Close *Email 1. IMPACTED PRODUCTS * VMware ESXi * VMware vCenter Server (vCenter Server) * VMware Cloud Foundation (Cloud Foundation) 2. INTRODUCTION Multiple vulnerabilities in VMware ESXi and vSphere Client (HTML5) were privately reported to VMware. Updates are available to remediate these vulnerabilities in affected VMware products. 3A. VMWARE VCENTER SERVER UPDATES ADDRESS REMOTE CODE EXECUTION VULNERABILITY IN THE VSPHERE CLIENT (CVE-2021-21972) Description The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8. Known Attack Vectors A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. Resolution To remediate CVE-2021-21972 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments. Workarounds Workarounds for CVE-2021-21972 have been listed in the 'Workarounds' column of the 'Response Matrix' below. Additional Documentation None. Notes The affected vCenter Server plugin for vROPs is available in all default installations. vROPs does not need be present to have this endpoint available. Follow the workarounds KB to disable it. Acknowledgements VMware would like to thank Mikhail Klyuchnikov of Positive Technologies for reporting this issue to us. Response Matrix: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation vCenter Server 7.0 Any CVE-2021-21972 9.8 critical 7.0 U1c KB82374 None vCenter Server 6.7 Any CVE-2021-21972 9.8 critical 6.7 U3l KB82374 None vCenter Server 6.5 Any CVE-2021-21972 9.8 critical 6.5 U3n KB82374 None Impacted Product Suites that Deploy Response Matrix 3a Components: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation Cloud Foundation (vCenter Server) 4.x Any CVE-2021-21972 9.8 critical 4.2 KB82374 None Cloud Foundation (vCenter Server) 3.x Any CVE-2021-21972 9.8 critical 3.10.1.2 KB82374 None 3B. ESXI OPENSLP HEAP-OVERFLOW VULNERABILITY (CVE-2021-21974) Description OpenSLP as used in ESXi has a heap-overflow vulnerability. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.8. Known Attack Vectors A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution. Resolution To remediate CVE-2021-21974 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments. Workarounds Workarounds for CVE-2021-21974 have been listed in the 'Workarounds' column of the 'Response Matrix' below. Additional Documentation None. Notes [1] Per the Security Configuration Guides for VMware vSphere, VMware now recommends disabling the OpenSLP service in ESXi if it is not used. For more information, see our blog posting: https://blogs.vmware.com/vsphere/2021/02/evolving-the-vmware-vsphere-security-configuration-guides.html [2] KB82705 documents steps to consume ESXi hot patch asynchronously on top of latest VMware Cloud Foundation (VCF) supported ESXi build. Acknowledgements VMware would like to thank Lucas Leong (@_wmliang_) of Trend Micro's Zero Day Initiative for reporting this issue to us. Response Matrix: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation [1] ESXi 7.0 Any CVE-2021-21974 8.8 important ESXi70U1c-17325551 KB76372 None [1] ESXi 6.7 Any CVE-2021-21974 8.8 important ESXi670-202102401-SG KB76372 None [1] ESXi 6.5 Any CVE-2021-21974 8.8 important ESXi650-202102101-SG KB76372 None Impacted Product Suites that Deploy Response Matrix 3b Components: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation [1] Cloud Foundation (ESXi) 4.x Any CVE-2021-21974 8.8 important 4.2 KB76372 None [1] Cloud Foundation (ESXi) 3.x Any CVE-2021-21974 8.8 important [2] KB82705 KB76372 None 3C. VMWARE VCENTER SERVER UPDATES ADDRESS SSRF VULNERABILITY IN THE VSPHERE CLIENT (CVE-2021-21973) Description The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 5.3. Known Attack Vectors A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. Resolution To remediate CVE-2021-21973 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments. Workarounds Workarounds for CVE-2021-21973 have been listed in the 'Workarounds' column of the 'Response Matrix' below. Additional Documentation None. Notes The affected vCenter Server plugin for vROPs is available in all default installations. vROPs does not need be present to have this endpoint available. Follow the workarounds KB to disable it. Acknowledgements VMware would like to thank Mikhail Klyuchnikov of Positive Technologies for reporting this issue to us. Response Matrix: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation vCenter Server 7.0 Any CVE-2021-21973 5.3 moderate 7.0 U1c KB82374 None vCenter Server 6.7 Any CVE-2021-21973 5.3 moderate 6.7 U3l KB82374 None vCenter Server 6.5 Any CVE-2021-21973 5.3 moderate 6.5 U3n KB82374 None Impacted Product Suites that Deploy Response Matrix 3c Components: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation Cloud Foundation (vCenter Server) 4.x Any CVE-2021-21973 5.3 moderate 4.2 KB82374 None Cloud Foundation (vCenter Server) 3.x Any CVE-2021-21973 5.3 moderate 3.10.1.2 KB82374 None 4. REFERENCES VMware ESXi 7.0 ESXi70U1c-17325551 https://my.vmware.com/group/vmware/patch https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-70u1c.html VMware ESXi 6.7 ESXi670-202102401-SG https://my.vmware.com/group/vmware/patch https://docs.vmware.com/en/VMware-vSphere/6.7/rn/esxi670-202102001.html VMware ESXi 6.5 ESXi650-202102101-SG https://my.vmware.com/group/vmware/patch https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-202102001.html VMware vCloud Foundation 4.2 Downloads and Documentation: https://docs.vmware.com/en/VMware-Cloud-Foundation/4.2/rn/VMware-Cloud-Foundation-42-Release-Notes.html VMware vCloud Foundation 3.10.1.2 Downloads and Documentation: https://docs.vmware.com/en/VMware-Cloud-Foundation/3.10.1/rn/VMware-Cloud-Foundation-3101-Release-Notes.html vCenter Server 7.0.1 Update 1 Downloads and Documentation: https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VC70U1C&productId=974 https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-vcenter-server-70u1c-release-notes.html vCenter Server 6.7 U3l Downloads and Documentation: https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VC67U3L&productId=742&rPId=57171 https://docs.vmware.com/en/VMware-vSphere/6.7/rn/vsphere-vcenter-server-67u3l-release-notes.html vCenter Server 6.5 U3n Downloads and Documentation: https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VC65U3N&productId=614&rPId=60942 https://docs.vmware.com/en/VMware-vSphere/6.5/rn/vsphere-vcenter-server-65u3n-release-notes.html Mitre CVE Dictionary Links: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21972 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21973 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21974 FIRST CVSSv3 Calculator: CVE-2021-21972: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-21973: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVE-2021-21974: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 5. CHANGE LOG 2021-02-23 VMSA-2021-0002 Initial security advisory. 6. CONTACT E-mail list for product security notifications and announcements: https://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce This Security Advisory is posted to the following lists: security-announce@lists.vmware.com bugtraq@securityfocus.com fulldisclosure@seclists.org E-mail: security@vmware.com PGP key at: https://kb.vmware.com/kb/1055 VMware Security Advisories https://www.vmware.com/security/advisories VMware Security Response Policy https://www.vmware.com/support/policies/security_response.html VMware Lifecycle Support Phases https://www.vmware.com/support/policies/lifecycle.html VMware Security & Compliance Blog https://blogs.vmware.com/security Twitter https://twitter.com/VMwareSRC Copyright 2021 VMware Inc. All rights reserved. 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