CVE-2026-20699 macOS降级导致信息泄露漏洞

#!/usr/bin/env python3 """ Conceptual PoC for CVE-2026-20699 Verification This script checks if the macOS version is vulnerable to the downgrade attack. Note: This does not exploit the vulnerability but checks the OS version. """ import platform import subprocess def get_macos_version(): """Get the current macOS version.""" return platform.mac_ver()[0] def is_vulnerable(version): """ Check if the version is within the vulnerable range. Vulnerable: macOS Sequoia < 15.7.5, macOS Sonoma < 14.8.5, macOS Tahoe < 26.3 """ # Simplified logic for demonstration major, minor, patch = map(int, version.split('.')) if major == 15 and minor < 7: return True if major == 15 and minor == 7 and patch < 5: return True if major == 14 and minor < 8: return True if major == 14 and minor == 8 and patch < 5: return True if major == 26 and minor < 3: return True return False if __name__ == "__main__": current_ver = get_macos_version() print(f"Current macOS Version: {current_ver}") if is_vulnerable(current_ver): print("[!] System is potentially vulnerable to CVE-2026-20699.") else: print("[+] System appears to be patched or unaffected.")