A vulnerability, which was classified as critical, has been found in VMware Fusion, Remote Console for Mac and Horizon Client for Mac (version now known). This issue affects some unknown processing of the component XPC Client Validation. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior before 11.2.0 ) and Horizon Client for Mac (5.x and prior before 5.4.3) contain a privilege escalation vulnerability due to improper XPC Client validation. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMware Remote Console for Mac or Horizon Client for Mac is installed.

The weakness was published 07/10/2020 (Website). It is possible to read the advisory at vmware.com. The identification of this vulnerability is CVE-2020-3974 since 12/30/2019. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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• VMware

Name

• Fusion
• Horizon Client for Mac
• Remote Console for Mac

License

• commercial

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