A vulnerability classified as critical was found in VMware Fusion, Remote Console for Mac and Horizon Client for Mac (version unknown). This vulnerability affects an unknown function. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (TOCTOU) issue in the service opener. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC and Horizon Client are installed.

The weakness was published 05/29/2020 (Website). The advisory is available at vmware.com. This vulnerability was named CVE-2020-3957 since 12/30/2019. Local access is required to approach this attack. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

Similar entries are available at 155891 and 155892.

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• VMware

Name

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

License

• commercial

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