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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0541
          vSphere Replication updates address a command injection
                             12 February 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           vSphere Replication
Publisher:         VMware
Operating System:  Virtualisation
                   VMware ESX Server
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-21976  

Original Bulletin: 
   https://www.vmware.com/security/advisories/VMSA-2021-0001.html

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Advisory ID: VMSA-2021-0001
CVSSv3 Range: 7.2
Issue Date: 2021-02-11
Updated On: 2021-02-11 (Initial Advisory)
CVE(s): CVE-2021-21976
Synopsis: vSphere Replication updates address a command injection vulnerability
(CVE-2021-21976)


1. Impacted Products

  o vSphere Replication

2. Introduction

A command injection vulnerability in vSphere Replication was privately reported
to VMware . Updates are available to address this vulnerability in the affected
product.

3. Authenticated Command Injection Vulnerability in vSphere Replication
(CVE-2021-21976)

Description

vSphere Replication contains a post-authentication command injection
vulnerability in "Startup Configuration" page. VMware has evaluated this issue
to be 'Important' severity with a maximum CVSSv3 base score of 7.2.

Known Attack Vectors

A malicious actor with administrative access in vSphere Replication can execute
shell commands on the underlying system. Successful exploitation of this issue
may allow authenticated admin user to perform a remote code execution.  

Resolution

To remediate CVE-2021-21976, apply the patches listed in the 'Fixed Version'
column of the 'Resolution Matrix' found below.

Workarounds

None.

Additional Documentation

None.

Notes

None.

Acknowledgements

VMware would like to thank Egor Dimitrenko from Positive Technologies for
reporting this issue to us.

Response Matrix

Product     Version Running CVE Identifier CVSSv3 Severity  Fixed   Workarounds Additional
                    On                                      Version             Documentation
vSphere     8.3.x   Any     CVE-2021-21976 7.2    important 8.3.1.2 None        None
Replication
vSphere     8.2.x   Any     CVE-2021-21976 7.2    important 8.2.1.1 None        None
Replication
vSphere     8.1.x   Any     CVE-2021-21976 7.2    important 8.1.2.3 None        None
Replication
vSphere     6.5.x   Any     CVE-2021-21976 7.2    important 6.5.1.5 None        None
Replication

4. References

vSphere Replication 8.3.1.2

Downloads and Documentation:

https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VR8312&
productId=742

https://docs.vmware.com/en/vSphere-Replication/8.3/rn/
vsphere-replication-8312-release-notes.html


vSphere Replication 8.2.1.1

Downloads and Documentation:

https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VR8211&
productId=742
https://docs.vmware.com/en/vSphere-Replication/8.2/rn/
vsphere-replication-821-release-notes.html


vSphere Replication 8.1.2.3

Downloads and Documentation:

https://my.vmware.com/web/vmware/downloads/details?downloadGroup=VR8123&
productId=742
https://docs.vmware.com/en/vSphere-Replication/8.1/rn/
vsphere-replication-812-release-notes.html


vSphere Replication 6.5.1.5
Downloads and Documentation:

https://my.vmware.com/web/vmware/downloads/details?productId=614&downloadGroup=
VR6515
https://docs.vmware.com/en/vSphere-Replication/6.5/rn/
vsphere-replication-651-release-notes.html


Mitre CVE Dictionary Links:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21976


FIRST CVSSv3 Calculator:

https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/
I:H/A:H

5. Change Log

2021-02-11 VMSA-2021-0001
Initial security advisory.

6. Contact

E-mail list for product security notifications and announcements:

https://lists.vmware.com/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 2020 VMware Inc. All rights reserved.

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