CVE-2025-55340 Windows远程桌面协议认证绕过漏洞

# CVE-2025-55340 - Windows RDP Authentication Bypass PoC (Conceptual) # This is a conceptual demonstration based on public vulnerability information. # Actual exploitation requires specific environment configuration. import subprocess import sys import os # Note: This PoC demonstrates the concept of the vulnerability. # Real exploitation requires local access and specific RDP configurations. def check_rdp_service(): """Check if RDP service is running on the local system""" try: result = subprocess.run( ["sc", "query", "TermService"], capture_output=True, text=True ) if "RUNNING" in result.stdout: print("[+] RDP Service (TermService) is running") return True else: print("[-] RDP Service is not running") return False except Exception as e: print(f"[-] Error checking RDP service: {e}") return False def enumerate_rdp_sessions(): """Enumerate active RDP sessions (low-privilege context)""" try: result = subprocess.run( ["query", "session"], capture_output=True, text=True ) print("[+] Active RDP Sessions:") print(result.stdout) return result.stdout except Exception as e: print(f"[-] Error enumerating sessions: {e}") return None def check_user_privileges(): """Check current user privilege level""" try: result = subprocess.run( ["whoami", "/priv"], capture_output=True, text=True ) print("[+] Current User Privileges:") print(result.stdout) # Check for SeAssignPrimaryTokenPrivilege or similar if "SeRemoteInteractiveLogonRight" in result.stdout: print("[!] User has RDP-related privileges") return result.stdout except Exception as e: print(f"[-] Error checking privileges: {e}") return None def exploit_auth_bypass(target_session_id): """ Conceptual exploitation of RDP authentication bypass. The vulnerability allows a low-privilege user to bypass authentication checks in the RDP subsystem. """ print(f"[*] Attempting to exploit CVE-2025-55340 on session {target_session_id}") # In the actual vulnerability, the authentication bypass occurs # due to improper validation in the RDP authentication subsystem. # A low-privilege attacker can leverage this to gain unauthorized # access to RDP-protected resources. print("[!] This is a conceptual PoC - actual exploitation requires") print(" specific system configuration and the Microsoft patch") print(" for CVE-2025-55340 must NOT be applied.") if __name__ == "__main__": print("=" * 60) print("CVE-2025-55340 - Windows RDP Authentication Bypass") print("CVSS 3.1: 7.0 (HIGH)") print("Vector: AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H") print("=" * 60) if not check_rdp_service(): sys.exit(1) enumerate_rdp_sessions() check_user_privileges() print("\n[*] Recommendation: Apply Microsoft security update") print(" https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55340")