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Incorrect access control in zam64.sys, zam32.sys in MalwareFox AntiMalware 2.74.0.150 where IOCTL's 0x80002014, 0x80002018 expose unrestricted disk read/write capabilities respectively. A non-privileged process can open a handle to \.\ZemanaAntiMalware, register with the driver using IOCTL 0x80002010 and send these IOCTL's to escalate privileges by overwriting the boot sector or overwriting critical code in the pagefile.
- https://github.com/irql0/CVE-2021-31728/blob/master/CVE-2021-31727.md
- https://github.com/irql/CVE-2021-31728
- https://github.com/irql0/CVE-2021-31728
- https://github.com/mathisvickie/KMAC