Windows 10 Bug Causes Blue Screen of Death (BSoD) When Opening a Specific Path

 A bug in Windows 10 causes the OS to crash with a blue screen of death (BSOD) if the user tries to open a specific path in the browser address bar or uses other Windows commands.



Last week, Twitter posted messages from a security researcher about two vulnerabilities in Windows that could be exploited by cybercriminals in different attacks. The first vulnerability allows an unprivileged user or program to issue a single command to mark an NTFS volume as damaged. Although chkdsk has successfully resolved this issue in a number of tests, in one test, the command damaged the hard drive, which caused Windows to stop loading.


The second bug can cause a blue screen of death when trying to open an unusual path. Since October last year, security researcher Jonas Lykkegaard has repeatedly written about a path that, when entered into the address bar of a browser (for example, Chrome), immediately crashes Windows 10 and appears a blue screen of death.


When developers want to interact with a Windows device directly, they can pass the Win32 device namespace path as an argument to various Windows software functions. This allows the application, for example, to interact directly with the physical disk, bypassing the file system.


As reported by Lukkegaard to BleepingComputer, he discovered a Win32 device namespace path for a "console mux driver" that he believes is used for kernel / usermode IPC. Opening the path in various ways by a user, even with a low-privilege level, can cause Windows 10 to shutdown: \\. \ Globalroot \ device \ condrv \ kernelconnect.

\\.\globalroot\device\condrv\kernelconnect

When connecting to a device, developers pass the extended attach attribute to correctly communicate with it. As Lukkegaard discovered, when trying to connect to a path without passing an attribute, due to incorrect error checking, an exception is thrown causing a blue screen of death. To make matters worse, Windows users with low privileges can try to connect to the device using this path, thereby allowing any program running on the computer to cause Windows 10 to crash.


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