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posted by Fnord666 on Monday August 23 2021, @04:46AM   Printer-friendly
from the Razer-should've-read-the-email dept.

Razer bug lets you become a Windows 10 admin by plugging in a mouse:

A Razer Synapse zero-day vulnerability has been disclosed on Twitter, allowing you to gain Windows admin privileges on a local computer simply by plugging in a mouse.

[...] When plugging in a Razer device into Windows 10 or Windows 11, the operating system will automatically download and begin installing the Razer Synapse software on the computer. Razer Synapse is software that allows users to configure their hardware devices, set up macros, or map buttons.

Security researcher jonhat discovered a zero-day vulnerability in the plug-and-play Razer Synapse installation that allows users to gain SYSTEM privileges on a Windows device quickly.

[...] When we plugged the Razer device into Windows 10, the operating system automatically downloaded and installed the driver and the Razer Synapse software.

Since the RazerInstaller.exe executable was launched via a Windows process running with SYSTEM privileges, the Razer installation program also gained SYSTEM privileges

[...] When the Razer Synapse software is installed, the setup wizard allows you to specify the folder where you wish to install it. The ability to select your installation folder is where everything goes wrong.

When you change the location of your folder, a 'Choose a Folder' dialog will appear. If you press Shift and right-click on the dialog, you will be prompted to open 'Open PowerShell window here,' which will open a PowerShell prompt in the folder

]...] As this PowerShell prompt is being launched by a process with SYSTEM privileges, the PowerShell prompt will also inherit those same privileges.


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  • (Score: 0) by Anonymous Coward on Tuesday August 24 2021, @03:52PM

    by Anonymous Coward on Tuesday August 24 2021, @03:52PM (#1170361)

    EG posts almost always help to reinforce the perception that MS just has no clue about security.