Exploit for eneio64.sys Kernel Driver - Turning Physical Memory R/W into Virtual Memory R/W

• This exploit targets eneio64.sys, a vulnerable driver offering read/write primitives on the system's physical memory. The associated CVE is CVE-2020-12446. I'm not the one behind this CVE discovery, all credit goes to @ihack4falafel.
• This exploit targets Windows 11 22H2. Check the nt!HalpLMStub & EPROCESS/KTHREAD offsets if you're targeting another Windows version.
• eneio64.sys is currently (March 8, 2025) tolerated by HVCI which reinforces the Vulnerable Driver Blocklist. eneio64.sys can be loaded on Windows 11 23H2 and 24H2 as well.
• The main purpose of this exploit is to demonstrate how to map virtual addresses to physical addresses using the same virtual-to-physical translation process as the OS. A walkthrough of this POC is published here.
• The exploit presented here enables privilege elevation via token theft.
• For educational purposes only.

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eneio64-privesc.mp4