module

VMware Fusion USB Arbitrator Setuid Privilege Escalation

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Disclosed
Mar 17, 2020
Created
Apr 2, 2020

Description

This exploits an improper use of setuid binaries within VMware Fusion 10.1.3 - 11.5.3.
The Open VMware USB Arbitrator Service can be launched outide of its standard path
which allows loading of an attacker controlled binary. By creating a payload in the
user home directory in a specific folder, and creating a hard link to the 'Open VMware
USB Arbitrator Service' binary, we're able to launch it temporarily to start our payload
with an effective UID of 0.
@jeffball55 discovered an incomplete patch in 11.5.3 with a TOCTOU race.
Successfully tested against 10.1.6, 11.5.1, 11.5.2, and 11.5.3.

Authors

h00die
Dhanesh Kizhakkinan
Rich Mirch
jeffball [email protected]
grimm

Platform

OSX

Architectures

x86, x64

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use exploit/osx/local/vmware_fusion_lpe
    msf exploit(vmware_fusion_lpe) > show targets
        ...targets...
    msf exploit(vmware_fusion_lpe) > set TARGET < target-id >
    msf exploit(vmware_fusion_lpe) > show options
        ...show and set options...
    msf exploit(vmware_fusion_lpe) > exploit
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