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Rewterz Threat Advisory – CVE-2021-21999 – VMRC for Windows and VMware App Volumes privilege escalation

Severity

High

Analysis Summary

CVE-2021-21999

VMware Tools for Windows, VMRC for Windows, and VMware App Volumes could allow a locally authenticated attacker to gain elevated privileges on the system. By placing a malicious file renamed as `openssl.cnf’ in an unrestricted directory, an attacker could exploit this vulnerability to execute arbitrary code on the system with elevated privileges.VMware Tools for Windows,

Impact

  • Gain Privileges

Affected Vendors

  • VMware App
  • VMware Tools
  • VMware VMRC

Affected Products

  • VMware App Volumes 2.0
  • VMware App Volumes 4.0
  • VMware Tools for Windows 11.0
  • VMware VMRC for Windows 12.0

Remediation

Refer to VMware Security Advisory VMSA-2021-0013 for the patch, upgrade, or suggested workaround information.

https://www.vmware.com/security/advisories/VMSA-2021-0013.html