- DriverGenius 9.70.0.346, mydrivers64.sys 9.2.707.1214
- http://www.drivergenius.com/
Denial of Service
From IoControlCode 0x9C40A0D8, 0x9C40A0DC, and 0x9C40A0E0, a normal user can call __outbyte, __outword, and __outdword respectively, which can lead to denial of service and other unknown impacts toward system e.g. UEFI attack.
In the attached file DoS2.zip, there are DoS2.exe, DoS2.cpp, DGSetup_Home_BZNR.exe, and mydrivers64.sys. DoS2.exe is the PoC to cause DoS where DGSetup_Home_BZNR.exe which contains the vulnerable driver mydrivers64.sys is installed, and DoS2.cpp is the source code of DoS2.exe. To reproduce the issue, install DGSetup_Home_BZNR.exe and execute DoS2.exe. It is expected that the system will restart once DoS2.exe is executed. Password for attachment: DoS2 https://drive.google.com/file/d/1VWI0i6Zq-Fi55kbZI6l3dHCeBq-NOlJc/view?usp=sharing