===================================================================== CERT-Renater Note d'Information No. 2021/VULN619 _____________________________________________________________________ DATE : 24/11/2021 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running VMware vCenter Server versions prior to 6.7 U3p, 6.5 U3r, Cloud Foundation (vCenter Server) versions 3.x. ===================================================================== https://www.vmware.com/security/advisories/VMSA-2021-0027.html _____________________________________________________________________ Important Advisory ID: VMSA-2021-0027 CVSSv3 Range: 6.5-7.5 Issue Date: 2021-11-23 Updated On: 2021-11-23 (Initial Advisory) CVE(s): CVE-2021-21980, CVE-2021-22049 Synopsis: VMware vCenter Server updates address arbitrary file read and SSRF vulnerabilities (CVE-2021-21980, CVE-2021-22049) 1. Impacted Products VMware vCenter Server (vCenter Server) VMware Cloud Foundation (Cloud Foundation) 2. Introduction Multiple vulnerabilities in VMware vCenter Server were privately reported to VMware. Updates are available to remediate these vulnerabilities in affected VMware products. 3a. vCenter Server updates address arbitrary file read vulnerability in the vSphere Web Client (CVE-2021-21980) Description The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 7.5. Known Attack Vectors A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information. Resolution To remediate CVE-2021-21980 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments. Workarounds None. Additional Documentation None. Notes vCenter Server vSphere Web Client (FLEX/Flash) is not available in vCenter Server 7.x, therefore this issue is not applicable to vCenter Server 7.x release line. Acknowledgements VMware would like to thank ch0wn of Orz lab 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-2021-21980 N/A N/A Unaffected N/A N/A vCenter Server 6.7 Any CVE-2021-21980 7.5 important 6.7 U3p None None vCenter Server 6.5 Any CVE-2021-21980 7.5 important 6.5 U3r None 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-2021-21980 N/A N/A Unaffected N/A N/A Cloud Foundation (vCenter Server) 3.x Any CVE-2021-21980 7.5 important Patch Pending None None 3b. vCenter Server updates address SSRF vulnerability in the vSphere Web Client (CVE-2021-22049) Description The vSphere Web Client (FLEX/Flash) contains an SSRF (Server Side Request Forgery) vulnerability in the vSAN Web Client (vSAN UI) plug-in. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 6.5. Known Attack Vectors A malicious actor with network access to port 443 on vCenter Server may exploit this issue by accessing a URL request outside of vCenter Server or accessing an internal service. Resolution To remediate CVE-2021-22049 apply the updates listed in the 'Fixed Version' column of the 'Response Matrix' below to affected deployments. Workarounds None. Additional Documentation None. Notes vCenter Server vSphere Web Client (FLEX/Flash) is not available in vCenter Server 7.x, therefore this issue is not applicable to vCenter Server 7.x release line. Acknowledgements VMware would like to thank magiczero from SGLAB of Legendsec at Qi'anxin Group 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-2021-22049 N/A N/A Unaffected N/A N/A vCenter Server 6.7 Any CVE-2021-22049 6.5 moderate 6.7 U3p None None vCenter Server 6.5 Any CVE-2021-22049 6.5 moderate 6.5 U3r None None Impacted Product Suites that Deploy Response Matrix 3b Components: Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation Cloud Foundation (vCenter Server) 4.x Any CVE-2021-22049 N/A N/A Unaffected N/A N/A Cloud Foundation (vCenter Server) 3.x Any CVE-2021-22049 6.5 moderate Patch Pending None None 4. References Fixed Version(s) and Release Notes: vCenter Server 6.7 U3p Downloads and Documentation: https://customerconnect.vmware.com/en/downloads/details?downloadGroup=VC67U3P&productId=742&rPId=78421 https://docs.vmware.com/en/VMware-vSphere/6.7/rn/vsphere-vcenter-server-67u3p-release-notes.html vCenter Server 6.5 U3r Downloads and Documentation: https://customerconnect.vmware.com/downloads/details?downloadGroup=VC65U3R&productId=614&rPId=74057 https://docs.vmware.com/en/VMware-vSphere/6.5/rn/vsphere-vcenter-server-65u3r-release-notes.html Mitre CVE Dictionary Links: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21980 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22049 FIRST CVSSv3 Calculator: CVE-2021-21980: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2021-22049: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L 5. Change Log 2021-11-23 VMSA-2021-0027 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. 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