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CVE-2021-31728

Description

Incorrect access control in zam64.sys, zam32.sys in MalwareFox AntiMalware 2.74.0.150 allows a non-privileged process to open a handle to \.\ZemanaAntiMalware, register itself with the driver by sending IOCTL 0x80002010, allocate executable memory using a flaw in IOCTL 0x80002040, install a hook with IOCTL 0x80002044 and execute the executable memory using this hook with IOCTL 0x80002014 or 0x80002018, this exposes ring 0 code execution in the context of the driver allowing the non-privileged process to elevate privileges.

POC

Reference

- https://github.com/irql0/CVE-2021-31728/blob/master/CVE-2021-31728.md

Github

- https://github.com/ARPSyndicate/cve-scores

- https://github.com/ARPSyndicate/cvemon

- https://github.com/NaInSec/CVE-PoC-in-GitHub

- https://github.com/SYRTI/POC_to_review

- https://github.com/WhooAmii/POC_to_review

- https://github.com/hfiref0x/KDU

- https://github.com/irql/CVE-2021-31728

- https://github.com/irql0/CVE-2021-31728

- https://github.com/mathisvickie/KMAC

- https://github.com/nbaertsch/Ternimator

- https://github.com/nomi-sec/PoC-in-GitHub

- https://github.com/soosmile/POC

- https://github.com/trhacknon/Pocingit

- https://github.com/zecool/cve